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Diagnosing System Problems |
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Optimizing a System with Disk Stores</a>
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<li>
<a href="/docs/guide/15/managing/disk_storage/handling_missing_disk_stores.html">Handling Missing Disk Stores</a>
</li>
<li>
<a href="/docs/guide/15/managing/disk_storage/managing_disk_buffer_flushes.html">Altering When Buffers Are Flushed to Disk</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/disk_storage/backup_restore_disk_store.html">Creating Backups for System Recovery and Operational Management</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/cache_snapshots/chapter_overview.html">Cache and Region Snapshots</a>
<ul>
<li>
<a href="/docs/guide/15/managing/cache_snapshots/using_cache_and_region_snapshots.html">Usage and Performance Notes</a>
</li>
<li>
<a href="/docs/guide/15/managing/cache_snapshots/exporting_a_snapshot.html">Exporting Cache and Region Snapshots</a>
</li>
<li>
<a href="/docs/guide/15/managing/cache_snapshots/importing_a_snapshot.html">Importing Cache and Region Snapshots</a>
</li>
<li>
<a href="/docs/guide/15/managing/cache_snapshots/filtering_snapshot_entries.html">Filtering Entries During Import or Export</a>
</li>
<li>
<a href="/docs/guide/15/managing/cache_snapshots/read_snapshots_programmatically.html">Reading Snapshots Programmatically</a>
</li>
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<li class="has_submenu">
<a href="/docs/guide/15/managing/region_compression.html">Region Compression</a>
<ul>
<li>
<a href="/docs/guide/15/managing/region_compression.html#concept_a2c_rhc_gl">Guidelines on Using Compression</a>
</li>
<li>
<a href="/docs/guide/15/managing/region_compression.html#topic_inm_whc_gl">How to Enable Compression in a Region</a>
</li>
<li>
<a href="/docs/guide/15/managing/region_compression.html#topic_hqf_syj_g4">Working with Compressors
</a>
</li>
<li>
<a href="/docs/guide/15/managing/region_compression.html#topic_omw_j3c_gl">Comparing Performance of Compressed and Non-Compressed Regions</a>
</li>
</ul>
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<li class="has_submenu">
<a href="/docs/guide/15/managing/network_partitioning/chapter_overview.html">Network Partitioning</a>
<ul>
<li>
<a href="/docs/guide/15/managing/network_partitioning/how_network_partitioning_management_works.html">How Network Partitioning Management Works</a>
</li>
<li>
<a href="/docs/guide/15/managing/network_partitioning/failure_detection.html">Failure Detection and Membership Views</a>
</li>
<li>
<a href="/docs/guide/15/managing/network_partitioning/membership_coordinators_lead_members_and_weighting.html">Membership Coordinators, Lead Members and Member Weighting</a>
</li>
<li>
<a href="/docs/guide/15/managing/network_partitioning/network_partitioning_scenarios.html">Network Partitioning Scenarios</a>
</li>
<li>
<a href="/docs/guide/15/managing/network_partitioning/handling_network_partitioning.html">Configure Apache Geode to Handle Network Partitioning</a>
</li>
<li>
<a href="/docs/guide/15/managing/network_partitioning/preventing_network_partitions.html">Preventing Network Partitions</a>
</li>
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<a href="/docs/guide/15/managing/security/chapter_overview.html">Security</a>
<ul>
<li>
<a href="/docs/guide/15/managing/security/implementing_security.html">Security Implementation Introduction and Overview</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/security/security_audit_overview.html">Security Detail Considerations</a>
<ul>
<li>
<a href="/docs/guide/15/managing/security/security-audit.html">External Interfaces, Ports, and Services</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/security-audit.html#topic_263072624B8D4CDBAD18B82E07AA44B6">Resources That Must Be Protected</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/security-audit.html#topic_5B6DF783A14241399DC25C6EE8D0048A">Log File Locations</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/properties_file.html">Where to Place Security Configuration Settings</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/security/enable_security.html">Enable Security with Property Definitions</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/security/authentication_overview.html">Authentication</a>
<ul>
<li>
<a href="/docs/guide/15/managing/security/implementing_authentication.html">Implementing Authentication</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/authentication_examples.html">Authentication Example</a>
</li>
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<li class="has_submenu">
<a href="/docs/guide/15/managing/security/authorization_overview.html">Authorization</a>
<ul>
<li>
<a href="/docs/guide/15/managing/security/implementing_authorization.html">Implementing Authorization</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/authorization_example.html">Authorization Example</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/security/post_processing.html">Post Processing of Region Data</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/security/ssl_overview.html">SSL</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/managing/security/implementing_ssl.html">Configuring SSL</a>
<ul>
<li>
<a href="/docs/guide/15/managing/security/implementing_ssl.html#ssl_configurable_components">SSL-Configurable Components</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/implementing_ssl.html#ssl_configuration_properties">SSL Configuration Properties</a>
</li>
<li>
<a href="/docs/guide/15/managing/security/implementing_ssl.html#ssl_property_reference_tables">SSL Property Reference Tables</a>
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<li>
<a href="/docs/guide/15/managing/security/implementing_ssl.html#implementing_ssl__sec_ssl_impl_proc">Procedure</a>
</li>
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<li>
<a href="/docs/guide/15/managing/security/ssl_example.html">SSL Sample Implementation</a>
</li>
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<a href="/docs/guide/15/managing/monitor_tune/chapter_overview.html">Performance Tuning and Configuration</a>
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<a href="/docs/guide/15/managing/monitor_tune/disabling_tcp_syn_cookies.html">Disabling TCP SYN Cookies</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/performance_on_vsphere.html">Improving Performance on vSphere</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/monitor_tune/performance_controls.html">Performance Controls</a>
<ul>
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<a href="/docs/guide/15/managing/monitor_tune/performance_controls_data_serialization.html">Data Serialization</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/performance_controls_setting_cache_timeouts.html">Setting Cache Timeouts</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/performance_controls_controlling_socket_use.html">Controlling Socket Use</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/performance_controls_managing_slow_receivers.html">Management of Slow Receivers</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/performance_controls_increasing_cache_hits.html">Increasing the Ratio of Cache Hits</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/monitor_tune/system_member_performance.html">System Member Performance</a>
<ul>
<li>
<a href="/docs/guide/15/managing/monitor_tune/system_member_performance_distributed_system_member.html">Distributed System Member Properties</a>
</li>
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<a href="/docs/guide/15/managing/monitor_tune/system_member_performance_jvm_mem_settings.html">JVM Memory Settings and System Performance</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/system_member_performance_garbage.html">Garbage Collection and System Performance</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/system_member_performance_connection_thread_settings.html">Connection Thread Settings and Performance</a>
</li>
</ul>
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<li class="has_submenu">
<a href="/docs/guide/15/managing/monitor_tune/slow_receivers.html">Slow Receivers with TCP/IP</a>
<ul>
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<a href="/docs/guide/15/managing/monitor_tune/slow_receivers_preventing_problems.html">Preventing Slow Receivers</a>
</li>
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<a href="/docs/guide/15/managing/monitor_tune/slow_receivers_managing.html">Managing Slow Receivers</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/slow_messages.html">Slow distributed-ack Messages</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/monitor_tune/socket_communication.html">Socket Communication</a>
<ul>
<li>
<a href="/docs/guide/15/managing/monitor_tune/socket_communication_setting_socket_buffer_sizes.html">Setting Socket Buffer Sizes</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/socket_communication_ephemeral_tcp_port_limits.html">Ephemeral TCP Port Limits</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/socket_communication_have_enough_sockets.html">Making Sure You Have Enough Sockets</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/socket_tcp_keepalive.html">TCP/IP KeepAlive Configuration</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/socket_communication_tcpip_p2p_handshake_timeouts.html">TCP/IP Peer-to-Peer Handshake Timeouts</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/udp_communication.html">UDP Communication</a>
</li>
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<a href="/docs/guide/15/managing/monitor_tune/multicast_communication.html">Multicast Communication</a>
<ul>
<li>
<a href="/docs/guide/15/managing/monitor_tune/multicast_communication_provisioning_bandwidth.html">Provisioning Bandwidth for Multicast</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/multicast_communication_testing_multicast_speed_limits.html">Testing Multicast Speed Limits</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/multicast_communication_configuring_speed_limits.html">Configuring Multicast Speed Limits</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/multicast_communication_runtime_considerations.html">Run-time Considerations for Multicast</a>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/multicast_communication_troubleshooting.html">Troubleshooting the Multicast Tuning Process</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/monitor_tune/cache_consistency.html">Maintaining Cache Consistency</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/logging/logging.html">Logging</a>
<ul>
<li>
<a href="/docs/guide/15/managing/logging/how_logging_works.html">How Geode Logging Works</a>
</li>
<li>
<a href="/docs/guide/15/managing/logging/logging_categories.html">Understanding Log Messages and Their Categories</a>
</li>
<li>
<a href="/docs/guide/15/managing/logging/logging_whats_next.html">Naming, Searching, and Creating Log Files</a>
</li>
<li>
<a href="/docs/guide/15/managing/logging/setting_up_logging.html">Set Up Logging</a>
</li>
<li>
<a href="/docs/guide/15/managing/logging/configuring_log4j2.html">Advanced Users—Configuring Log4j 2 for Geode</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/statistics/chapter_overview.html">Statistics</a>
<ul>
<li>
<a href="/docs/guide/15/managing/statistics/how_statistics_work.html">How Statistics Work</a>
</li>
<li>
<a href="/docs/guide/15/managing/statistics/transient_region_and_entry_statistics.html">Transient Region and Entry Statistics</a>
</li>
<li>
<a href="/docs/guide/15/managing/statistics/application_defined_statistics.html">Application-Defined and Custom Statistics</a>
</li>
<li>
<a href="/docs/guide/15/managing/statistics/setting_up_statistics.html">Configuring and Using Statistics</a>
</li>
<li>
<a href="/docs/guide/15/managing/statistics/viewing_statistics.html">Viewing Archived Statistics</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/troubleshooting/chapter_overview.html">Troubleshooting and System Recovery</a>
<ul>
<li>
<a href="/docs/guide/15/managing/troubleshooting/producing_troubleshooting_artifacts.html">Producing Artifacts for Troubleshooting</a>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html">Diagnosing System Problems</a>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/system_failure_and_recovery.html">System Failure and Recovery</a>
</li>
<li>
<a href="/docs/guide/15/managing/member-reconnect.html">Handling Forced Cache Disconnection Using Autoreconnect</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/managing/troubleshooting/recovering_from_app_crashes.html">Recovering from Application and Cache Server Crashes</a>
<ul>
<li>
<a href="/docs/guide/15/managing/troubleshooting/recovering_from_p2p_crashes.html">Recovering from Crashes with a Peer-to-Peer Configuration</a>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/recovering_from_cs_crashes.html">Recovering from Crashes with a Client/Server Configuration</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/recovering_from_machine_crashes.html">Recovering from Machine Crashes</a>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/recovering_conflicting_data_exceptions.html">Recovering from ConfictingPersistentDataExceptions</a>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/prevent_and_recover_disk_full_errors.html">Preventing and Recovering from Disk Full Errors</a>
</li>
<li>
<a href="/docs/guide/15/managing/troubleshooting/recovering_from_network_outages.html">Understanding and Recovering from Network Outages</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/book_intro.html">Developing with Apache Geode</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/developing/region_options/chapter_overview.html">
Region Data Storage and Distribution</a>
<ul>
<li>
<a href="/docs/guide/15/developing/region_options/storage_distribution_options.html">
Storage and Distribution Options</a>
</li>
<li>
<a href="/docs/guide/15/developing/region_options/region_types.html">Region Types</a>
</li>
<li>
<a href="/docs/guide/15/developing/region_options/data_hosts_and_accessors.html">Region Data Stores and Data Accessors</a>
</li>
<li>
<a href="/docs/guide/15/developing/region_options/dynamic_region_creation.html">Creating Regions Dynamically</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/partitioned_regions/chapter_overview.html">Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/how_partitioning_works.html">Understanding Partitioning</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/managing_partitioned_regions.html">Configuring Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/configuring_bucket_for_pr.html">Configuring the Number of Buckets for a Partitioned Region</a>
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<li class="has_submenu">
<a href="/docs/guide/15/developing/partitioned_regions/overview_custom_partitioning_and_data_colocation.html">Custom-Partitioning and Colocating Data</a>
<ul>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/custom_partitioning_and_data_colocation.html">Understanding Custom Partitioning and Data Colocation</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/standard_custom_partitioning.html">Standard Custom Partitioning</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/fixed_custom_partitioning.html">Fixed Custom Partitioning</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/colocating_partitioned_region_data.html">Colocate Data from Different Partitioned Regions</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/partitioned_regions/overview_how_pr_ha_works.html">Configuring High Availability for Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/how_pr_ha_works.html">Understanding High Availability for Partitioned Regions</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/partitioned_regions/configuring_ha_for_pr.html">Configure High Availability for a Partitioned Region</a>
<ul>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/set_pr_redundancy.html">Set the Number of Redundant Copies</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/set_redundancy_zones.html">Configure Redundancy Zones for Members</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/set_enforce_unique_host.html">Set Enforce Unique Host</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/set_crash_redundancy_recovery.html">Configure Member Crash Redundancy Recovery for a Partitioned Region</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/set_join_redundancy_recovery.html">Configure Member Join Redundancy Recovery for a Partitioned Region</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/partitioned_regions/overview_how_pr_single_hop_works.html">Configuring Single-Hop Client Access to Server-Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/how_pr_single_hop_works.html">Understanding Client Single-Hop Access to Server-Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/configure_pr_single_hop.html">Configure Client Single-Hop Access to Server-Partitioned Regions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/rebalancing_pr_data.html">Rebalancing Partitioned Region Data</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/checking_region_redundancy.html">Checking Redundancy in Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/moving_partitioned_data.html">Moving Partitioned Region Data to Another Member</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/distributed_regions/chapter_overview.html">
Distributed and Replicated Regions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_distribution_works.html">How Distribution Works</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/choosing_level_of_dist.html">Options for Region Distribution</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_replication_works.html">How Replication and Preloading Work</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/managing_distributed_regions.html">Configure Distributed, Replicated, and Preloaded Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/locking_in_global_regions.html">Locking in Global Regions</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/distributed_regions/region_entry_versions.html">Consistency for Region Updates</a>
<ul>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_region_versioning_works.html#topic_7A4B6C6169BD4B1ABD356294F744D236">
Consistency Checking by Region Type</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_region_versioning_works.html#topic_B64891585E7F4358A633C792F10FA23E">Configuring Consistency Checking</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_region_versioning_works.html#topic_0BDACA590B2C4974AC9C450397FE70B2">Overhead for Consistency Checks</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_region_versioning_works.html#topic_C5B74CCDD909403C815639339AA03758">How Consistency Checking Works for Replicated Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_region_versioning_works.html#topic_321B05044B6641FCAEFABBF5066BD399">How Destroy and Clear Operations Are Resolved</a>
</li>
<li>
<a href="/docs/guide/15/developing/distributed_regions/how_region_versioning_works.html#topic_32ACFA5542C74F3583ECD30467F352B0">Transactions with Consistent Regions</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/general_region_data_management.html">General Region Data Management</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/developing/storing_data_on_disk/chapter_overview.html">Persistence and Overflow</a>
<ul>
<li>
<a href="/docs/guide/15/developing/storing_data_on_disk/how_persist_overflow_work.html">How Persistence and Overflow Work</a>
</li>
<li>
<a href="/docs/guide/15/developing/storing_data_on_disk/storing_data_on_disk.html">Configure Region Persistence and Overflow</a>
</li>
<li>
<a href="/docs/guide/15/developing/storing_data_on_disk/overflow_config_examples.html">Overflow Configuration Examples</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/eviction/chapter_overview.html">Eviction</a>
<ul>
<li>
<a href="/docs/guide/15/developing/eviction/how_eviction_works.html">How Eviction Works</a>
</li>
<li>
<a href="/docs/guide/15/developing/eviction/configuring_data_eviction.html">Configure Data Eviction</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/expiration/chapter_overview.html">Expiration</a>
<ul>
<li>
<a href="/docs/guide/15/developing/expiration/how_expiration_works.html">How Expiration Works</a>
</li>
<li>
<a href="/docs/guide/15/developing/expiration/configuring_data_expiration.html">Configure Data Expiration</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/outside_data_sources/sync_outside_data.html">Keeping the Cache in Sync with Outside Data Sources</a>
<ul>
<li>
<a href="/docs/guide/15/developing/outside_data_sources/chapter_overview.html">Overview of Outside Data Sources</a>
</li>
<li>
<a href="/docs/guide/15/developing/outside_data_sources/how_data_loaders_work.html">How Data Loaders Work</a>
</li>
<li>
<a href="/docs/guide/15/developing/outside_data_sources/implementing_data_loaders.html">Implement a Data Loader</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/data_serialization/chapter_overview.html">Data Serialization</a>
<ul>
<li>
<a href="/docs/guide/15/developing/data_serialization/data_serialization_options.html">Overview of Data Serialization</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/data_serialization/gemfire_pdx_serialization.html">Geode PDX Serialization</a>
<ul>
<li>
<a href="/docs/guide/15/developing/data_serialization/PDX_Serialization_Features.html">Geode PDX Serialization Features</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/use_pdx_high_level_steps.html">High Level Steps for Using PDX Serialization
</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/data_serialization/auto_serialization.html">Using Automatic Reflection-Based PDX Serialization</a>
<ul>
<li>
<a href="/docs/guide/15/developing/data_serialization/autoserialization_with_class_pattern_strings.html">Customizing Serialization with Class Pattern Strings</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/extending_the_autoserializer.html">Extending the ReflectionBasedAutoSerializer</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/use_pdx_serializer.html">Serializing Your Domain Object with a PdxSerializer</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/use_pdx_serializable.html">Implementing PdxSerializable in Your Domain Object</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/program_application_for_pdx.html">Programming Your Application to Use PdxInstances</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/jsonformatter_pdxinstances.html">Adding JSON Documents to the Geode Cache</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/using_PdxInstanceFactory.html">Using PdxInstanceFactory to Create PdxInstances</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/persist_pdx_metadata_to_disk.html">Persisting PDX Metadata to Disk</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/using_pdx_region_entry_keys.html">Using PDX Objects as Region Entry Keys</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/gemfire_data_serialization.html">Geode Data Serialization (DataSerializable and DataSerializer)</a>
</li>
<li>
<a href="/docs/guide/15/developing/data_serialization/java_serialization.html">Standard Java Serialization</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/chapter_overview.html">Events and Event Handling</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/how_events_work.html">How Events Work</a>
<ul>
<li>
<a href="/docs/guide/15/developing/events/how_cache_events_work.html">Peer-to-Peer Event Distribution</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/how_client_server_distribution_works.html">Client-to-Server Event Distribution</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/how_multisite_distribution_works.html">
Multi-Site (WAN) Event Distribution</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/list_of_event_handlers_and_events.html">List of Event Handlers and Events</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/event_handler_overview.html">Implementing Geode Event Handlers</a>
<ul>
<li>
<a href="/docs/guide/15/developing/events/implementing_cache_event_handlers.html">Implementing Cache Event Handlers</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/implementing_write_behind_event_handler.html">Implementing an AsyncEventListener for Write-Behind Cache Event Handling</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/writing_callbacks_that_modify_the_cache.html">How to Safely Modify the Cache from an Event Handler Callback</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/cache_event_handler_examples.html">Cache Event Handler Examples</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/events/configure_p2p_event_messaging.html">Configuring Peer-to-Peer Event Messaging</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/configure_client_server_event_messaging.html">Configuring Client/Server Event Messaging
</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/configuring_highly_available_servers.html">Configuring Highly Available Servers</a>
<ul>
<li>
<a href="/docs/guide/15/developing/events/ha_event_messaging_whats_next.html">Highly Available Client/Server Event Messaging</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/events/implementing_durable_client_server_messaging.html">Implementing Durable Client/Server Messaging</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/tune_client_server_event_messaging.html">Tuning Client/Server Event Messaging</a>
<ul>
<li>
<a href="/docs/guide/15/developing/events/conflate_server_subscription_queue.html">Conflate the Server Subscription Queue</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/limit_server_subscription_queue_size.html">Limit the Server's Subscription Queue Memory Use
</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/tune_client_message_tracking_timeout.html">Tune the Client's Subscription Message Tracking Timeout</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/events/configure_multisite_event_messaging.html">Configuring Multi-Site (WAN) Event Queues</a>
<ul>
<li>
<a href="/docs/guide/15/developing/events/configuring_highly_available_gateway_queues.html">Persisting an Event Queue</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/configuring_gateway_concurrency_levels.html">Configuring Dispatcher Threads and Order Policy for Event Distribution</a>
</li>
<li>
<a href="/docs/guide/15/developing/events/conflate_multisite_gateway_queue.html">Conflating Events in a Queue</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/delta_propagation/chapter_overview.html">
Delta Propagation</a>
<ul>
<li>
<a href="/docs/guide/15/developing/delta_propagation/how_delta_propagation_works.html">How Delta Propagation Works</a>
</li>
<li>
<a href="/docs/guide/15/developing/delta_propagation/when_to_use_delta_prop.html">When to Avoid Delta Propagation</a>
</li>
<li>
<a href="/docs/guide/15/developing/delta_propagation/delta_propagation_properties.html">Delta Propagation Properties</a>
</li>
<li>
<a href="/docs/guide/15/developing/delta_propagation/implementing_delta_propagation.html">Implementing Delta Propagation</a>
</li>
<li>
<a href="/docs/guide/15/developing/delta_propagation/errors_in_delta_propagation.html">Errors In Delta Propagation</a>
</li>
<li>
<a href="/docs/guide/15/developing/delta_propagation/delta_propagation_example.html">Delta Propagation Example</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/querying_basics/chapter_overview.html">Querying</a>
<ul>
<li>
<a href="/docs/guide/15/getting_started/querying_quick_reference.html">Geode Querying FAQ and Examples</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/querying_basics/query_basics.html">Querying with OQL</a>
<ul>
<li>
<a href="/docs/guide/15/developing/querying_basics/oql_compared_to_sql.html">Advantages of OQL</a>
</li>
<li>
<a href="/docs/guide/15/developing/querying_basics/running_a_query.html">Writing and Executing a Query in Geode</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/querying_basics/what_is_a_query_string.html">Building a Query String</a>
<ul>
<li>
<a href="/docs/guide/15/developing/query_select/the_import_statement.html">IMPORT Statement</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_select/the_from_clause.html">FROM Clause</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_select/the_where_clause.html">WHERE Clause</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_select/the_select_statement.html">SELECT Statement</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_select/aggregates.html">OQL Aggregate Functions</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/query_additional/query_language_features.html">OQL Syntax and Semantics</a>
<ul>
<li>
<a href="/docs/guide/15/developing/querying_basics/supported_character_sets.html">Supported Character Sets</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/supported_keywords.html">Supported Keywords</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/case_sensitivity.html">Case Sensitivity</a>
</li>
<li>
<a href="/docs/guide/15/developing/querying_basics/comments_in_query_strings.html">Comments in Query Strings</a>
</li>
<li>
<a href="/docs/guide/15/developing/querying_basics/query_grammar_and_reserved_words.html">Query Language Grammar</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/operators.html">Operators</a>
</li>
<li>
<a href="/docs/guide/15/developing/querying_basics/reserved_words.html">Reserved Words</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/literals.html">Supported Literals</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/querying_basics/restrictions_and_unsupported_features.html">Query Language Restrictions and Unsupported Features</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/query_additional/advanced_querying.html">Advanced Querying</a>
<ul>
<li>
<a href="/docs/guide/15/developing/querying_basics/performance_considerations.html">Performance Considerations</a>
</li>
<li>
<a href="/docs/guide/15/developing/querying_basics/monitor_queries_for_low_memory.html">Monitoring Queries for Low Memory</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/using_query_bind_parameters.html">Using Query Bind Parameters</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/querying_basics/querying_partitioned_regions.html">
Querying Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/query_additional/order_by_on_partitioned_regions.html">Using ORDER BY on Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/query_on_a_single_node.html">Querying a Partitioned Region on a Single Node</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/partitioned_region_key_or_field_value.html">Optimizing Queries on Data Partitioned by a Key or Field Value</a>
</li>
<li>
<a href="/docs/guide/15/developing/partitioned_regions/join_query_partitioned_regions.html">Performing an Equi-Join Query on Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/partitioned_region_query_restrictions.html">Partitioned Region Query Restrictions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/query_additional/query_debugging.html">Query Debugging</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/query_index/query_index.html">Working with Indexes</a>
<ul>
<li>
<a href="/docs/guide/15/developing/query_index/indexing_guidelines.html">Tips and Guidelines on Using Indexes</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/creating_an_index.html">Creating, Listing and Removing Indexes</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/creating_key_indexes.html">Creating Key Indexes</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/creating_hash_indexes.html">Creating Hash Indexes</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/creating_map_indexes.html">Creating Indexes on Map Fields ("Map Indexes")</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/create_multiple_indexes.html">Creating Multiple Indexes at Once</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/maintaining_indexes.html">Maintaining Indexes (Synchronously or Asynchronously) and Index Storage</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/query_index_hints.html">Using Query Index Hints</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/indexes_on_single_region_queries.html">Using Indexes on Single Region Queries</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/using_indexes_with_equijoin_queries.html">Using Indexes with Equi-Join Queries</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/indexes_with_overflow_regions.html">Using Indexes with Overflow Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/using_indexes_with_equijoin_queries_multiple_regions.html">Using Indexes on Equi-Join Queries using Multiple Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/query_index/index_samples.html">Index Samples</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/continuous_querying/chapter_overview.html">
Continuous Querying</a>
<ul>
<li>
<a href="/docs/guide/15/developing/continuous_querying/how_continuous_querying_works.html">How Continuous Querying Works</a>
</li>
<li>
<a href="/docs/guide/15/developing/continuous_querying/implementing_continuous_querying.html">Implementing Continuous Querying</a>
</li>
<li>
<a href="/docs/guide/15/developing/continuous_querying/continuous_querying_whats_next.html">Managing Continuous Querying</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/chapter_overview.html">Transactions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/about_transactions.html">About Transactions</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/cache_transactions.html">Geode Cache Transactions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/cache_transaction_performance.html">Cache Transaction Performance</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/data_location_cache_transactions.html">Data Location for Cache Transactions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/run_a_cache_transaction.html">How to Run a Geode Cache Transaction</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/run_a_cache_transaction_with_external_db.html">How to Run a Geode Cache Transaction that Coordinates with an External Database</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html">Working with Geode Cache Transactions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_vx2_gs4_5k">Setting Global Copy on Read
</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_fdr_wht_vk">Making a Safe Change Within a Transaction Using CopyHelper.copy
</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_ihn_zmt_vk">Transactions and Functions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_ty1_vnt_vk">Using Queries and Indexes with Transactions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_ksh_twz_vk">Collections and Region.Entry Instances in Transactions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_vyt_txz_vk">Using Eviction and Expiration Operations</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#transactions_and_consistency">Transactions and Consistent Regions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_u5b_ryz_vk">Suspending and Resuming Transactions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_ysx_nf1_wk">Using Cache Writer and Cache Listener Plug-Ins</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_ocw_vf1_wk">Configuring Transaction Plug-In Event Handlers</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transaction_event_management.html">How Transaction Events Are Managed</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/how_cache_transactions_work.html#topic_fls_1j1_wk">How Geode Cache Transactions Work</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/how_cache_transactions_work.html#concept_hls_1j1_wk">Transaction View</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/how_cache_transactions_work.html#concept_sbj_lj1_wk">Committing Transactions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/cache_transactions_by_region_type.html">Transactions by Region Type</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/client_server_transactions.html">Client Transactions</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/client_server_transactions.html#how_gemfire_runs_clients">How Geode Runs Client Transactions</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/client_server_transactions.html#client_cache_access">Client Cache Access During a Transaction</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/client_server_transactions.html#client_app_plugins">Client Transactions and Client Application Plug-Ins</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/client_server_transactions.html#client_transaction_failures">Client Transaction Failures</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#transactional_and_nontransactional_ops">Comparing Transactional and Non-Transactional Operations</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#transactional_operations">Transactional Operations</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#non_transactional_operations">Non-Transactional Operations</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#entry_operations">Entry Operations</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#region_operations">Region Operations</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#cache_operations">Cache Operations</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_and_nontransactional_ops.html#no-ops">No-Ops</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transaction_semantics.html">Geode Cache Transaction Semantics</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html">JTA Global Transactions with Geode
</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html#concept_cp1_zx1_wk">Coordinating with External JTA Transactions Managers</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html#task_j3g_3mn_1l">How to Run a JTA Transaction Coordinated by an External Transaction Manager</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html#concept_csy_vfb_wk">Using Geode as the "Last Resource" in a Container-Managed JTA Transaction</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html#task_sln_x3b_wk">How to Run JTA Transactions with Geode as a "Last Resource"</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html#concept_8567sdkbigige">Using Geode as the JTA Transaction Manager</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/JTA_transactions.html#task_qjv_khb_wk">How to Run a JTA Global Transaction Using Geode as the JTA Transaction Manager</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/configuring_db_connections_using_JNDI.html">Configuring Database Connections Using JNDI</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/configuring_db_connections_using_JNDI.html#topic_F67EC20067124A618A8099AB4CBF634C">Example DataSource Configurations in cache.xml</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/cache_plugins_with_jta.html">Behavior of Geode Cache Writers and Loaders Under JTA</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/turning_off_jta.html">Turning Off JTA Transactions
</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/monitor_troubleshoot_transactions.html">Monitoring and Troubleshooting Transactions</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/transactions/transaction_coding_examples.html">Transaction Coding Examples</a>
<ul>
<li>
<a href="/docs/guide/15/developing/transactions/transactions_overview.html">Basic Transaction Example</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transaction_suspend_resume_example.html">Basic Suspend and Resume Transaction Example</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transactional_function_example.html">Transaction Embedded within a Function Example</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/transaction_jta_gemfire_example.html">Geode JTA Transaction Example</a>
</li>
<li>
<a href="/docs/guide/15/developing/transactions/jca_adapter_example.html">JCA Resource Adapter Example</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/developing/function_exec/chapter_overview.html">Function Execution</a>
<ul>
<li>
<a href="/docs/guide/15/developing/function_exec/how_function_execution_works.html">How Function Execution Works</a>
</li>
<li>
<a href="/docs/guide/15/developing/function_exec/function_execution.html">Executing a Function in Apache Geode</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/book_intro.html">Developing REST Applications for Apache Geode</a>
<ul>
<li>
<a href="/docs/guide/15/rest_apps/chapter_overview.html">Geode REST API Overview</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/rest_prereqs.html">Prerequisites and Limitations for Writing REST Applications</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/setup_config.html">Setup and Configuration</a>
<ul>
<li><a href="/docs/guide/15/rest_apps/setup_config.html#setup_config_enabling_rest">Enabling the REST API</a></li>
<li><a href="/docs/guide/15/rest_apps/setup_config.html#setup_config_starting_rest">Starting the REST API Service</a></li>
<li><a href="/docs/guide/15/rest_apps/setup_config.html#setup_config_implementing_auth">Implementing Authentication</a></li>
<li><a href="/docs/guide/15/rest_apps/setup_config.html#setup_config_implementing_auth">Programmatic Startup</a></li>
</ul>
</li>
<li>
<a href="/docs/guide/15/rest_apps/using_swagger.html">Using the Swagger UI to Browse REST APIs</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/develop_rest_apps.html">Developing REST Applications</a>
<ul>
<li>
<a href="/docs/guide/15/rest_apps/develop_rest_apps.html#topic_qhs_f25_m4">Working with Regions</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/develop_rest_apps.html#topic_fcn_g25_m4">Working with Queries</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/develop_rest_apps.html#topic_rbc_h25_m4">Working with Functions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/rest_apps/rest_examples.html">Sample REST Applications</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/troubleshooting.html">Troubleshooting and FAQ</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/rest_api_reference.html">Apache Geode REST API Reference</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/rest_regions.html">Region Endpoints</a>
<ul>
<li>
<a href="/docs/guide/15/rest_apps/get_regions.html">GET /gemfire-api/v1</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/get_region_data.html">GET /gemfire-api/v1/{region}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/get_region_keys.html">GET /gemfire-api/v1/{region}/keys</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/get_region_key_data.html">GET /gemfire-api/v1/{region}/{key}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/get_region_data_for_multiple_keys.html">GET /gemfire-api/v1/{region}/{key1},{key2},...,{keyN}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/head_region_size.html">HEAD /gemfire-api/v1/{region}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/post_if_absent_data.html">POST /gemfire-api/v1/{region}?key=&lt;key&gt;</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/put_update_data.html">PUT /gemfire-api/v1/{region}/{key}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/put_multiple_values_for_keys.html">PUT /gemfire-api/v1/{region}/{key1},{key2},...{keyN}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/put_replace_data.html">PUT /gemfire-api/v1/{region}/{key}?op=REPLACE</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/put_update_cas_data.html">PUT /gemfire-api/v1/{region}/{key}?op=CAS</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/delete_all_data.html">DELETE /gemfire-api/v1/{region}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/delete_data_for_key.html">DELETE /gemfire-api/v1/{region}/{key}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/delete_data_for_multiple_keys.html">DELETE /gemfire-api/v1/{region}/{key1},{key2},...{keyN}</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/rest_queries.html">Query Endpoints</a>
<ul>
<li>
<a href="/docs/guide/15/rest_apps/get_queries.html">GET /gemfire-api/v1/queries</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/post_create_query.html">POST /gemfire-api/v1/queries?id=&lt;queryId&gt;&amp;q=&lt;OQL-statement&gt;</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/post_execute_query.html">POST /gemfire-api/v1/queries/{queryId}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/put_update_query.html">PUT /gemfire-api/v1/queries/{queryId}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/delete_named_query.html">DELETE /gemfire-api/v1/queries/{queryId}</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/get_execute_adhoc_query.html">GET /gemfire-api/v1/queries/adhoc?q=&lt;OQL-statement&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/rest_functions.html">Function Endpoints</a>
<ul>
<li>
<a href="/docs/guide/15/rest_apps/get_functions.html">GET /gemfire-api/v1/functions</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/post_execute_functions.html">POST /gemfire-api/v1/functions/{functionId}</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/rest_apps/rest_admin.html">Administrative Endpoints</a>
<ul>
<li>
<a href="/docs/guide/15/rest_apps/ping_service.html">[HEAD | GET] /gemfire-api/v1/ping</a>
</li>
<li>
<a href="/docs/guide/15/rest_apps/get_servers.html">GET /gemfire-api/v1/servers</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/book_intro.html">Tools and Modules</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/chapter_overview.html">
gfsh</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/about_gfsh.html">What You Can Do with gfsh</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/starting_gfsh.html">Starting gfsh</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/configuring_gfsh.html">Configuring the gfsh Environment</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/useful_gfsh_shell_variables.html">Useful gfsh Shell Variables</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/getting_started_gfsh.html">Basic Shell Features and Command-Line Usage</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/json_in_gfsh.html">Specifying JSON within Command-Line Options</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/tour_of_gfsh.html">Tutorial—Performing Common Tasks with gfsh</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/gfsh_quick_reference.html">Quick Reference of gfsh Commands by Functional Area</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_77DA6E3929404EB4AC24230CC7C21493">Basic Geode gfsh Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_EB854534301A477BB01058B3B142AE1D">Configuration Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_C7DB8A800D6244AE8FF3ADDCF139DCE4">Data Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_1B47A0E120124EB6BF08A467EB510412">Deployment Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_1ACC91B493EE446E89EC7DBFBBAE00EA">Disk Store Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_10613D4850F04A3EB507F6B441AD3413">Durable CQ and Client Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_8BB061D1A7A9488C819FE2B7881A1278">Function Execution Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_F0AE5CE40D6D49BF92247F5EF4F871D2">Gateway (WAN) Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_B742E9E862BA457082E2346581C97D03">Geode Monitoring Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_688C66526B4649AFA51C0F72F34FA45E">Index Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_2A6DA4078E4E496A9F725A29BC4CFD0D">JMX Connection Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_1C82E6F1B2AF4A65A8DA6B3C846BAC13">Locator Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_lucene_commands">Lucene Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_cvg_bls_5q">PDX Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_EF03129A40EE492984F3B6248596E1DD">Region Commands</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_8A341FF86958466E9E64CF06CD21FED9">Server Commands</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/gfsh_command_index.html">gfsh Command Help</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/alter.html">alter</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/alter.html#topic_alter_async_event_queue">alter async-event-queue</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/alter.html#topic_99BCAD98BDB5470189662D2F308B68EB">alter disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/alter.html#topic_E74ED23CB60342538B2175C326E7D758">alter region</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/alter.html#topic_7E6B7E1B972D4F418CB45354D1089C2B">alter runtime</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/backup.html">backup disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/change.html">change loglevel</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/clear.html">clear defined indexes</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/close.html">close</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/close.html#topic_4125AAAB9FE44CD787166E48B694C41D">close durable-client</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/close.html#topic_1BC15B3132BA480DB227921A9B3ABDD1">close durable-cq</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/compact.html">compact</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/compact.html#topic_F123C95C076F424E9AA8AC4F1F6324CC">compact disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/compact.html#topic_9CCFCB2FA2154E16BD775439C8ABC8FB">compact offline-disk-store</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/configure.html">configure</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/connect.html">connect</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html">create</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_ryz_pb1_dk">create async-event-queue</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_w2t_l3m_qq">create defined indexes</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_bkn_zty_ck">create disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_a4x_pb1_dk">create gateway-receiver</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_hg2_bjz_ck">create gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_960A5B6FD3D84E1881EE128E299DD12D">create index</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#create_lucene_index">create lucene index</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/create.html#topic_54B0985FEC5241CA9D26B0CE0A5EA863">create region</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/debug.html">debug</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/define.html">define index</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/deploy.html">deploy</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html">describe</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_gyr_jgz_ck">describe client</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_3C2C817D999C4E40AF788808B7B6AF99">describe config</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_591DC6B781B641268E6173E69AC6D201">describe connection
</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_C635B500BE6A4F1D9572D0BC98A224F2">describe disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#describe_lucene_index">describe lucene index</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_D62F3D42B1D84CF68F03D54D5122806A">describe member</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_kys_yvk_2l">describe offline-disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/describe.html#topic_DECF7D3D33F54071B6B8AD4EA7E3F90B">describe region
</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html">destroy</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#topic_destroy-async-event-queue">destroy async-event-queue</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#topic_yfr_l2z_ck">destroy disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#topic_E48C2DF809054C12A162026D8A2139BB">destroy function</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#destroy-gs">destroy gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#topic_D00219CCD6F64C1582A0802AC5CDF3F3">destroy index</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#destroy_lucene_index">destroy lucene index</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/destroy.html#topic_BEDACECF4599407794ACBC0E56B30F65">destroy region</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/disconnect.html">disconnect</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/echo.html">echo</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/execute.html">execute function</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/exit.html">exit</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html">export</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html#topic_mdv_jgz_ck">export cluster-configuration
</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html#topic_C7C69306F93743459E65D46537F4A1EE">export config</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html#topic_263B70069BFC4A7185F86B3272011734">export data</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html#topic_B80978CC659244AE91E2B8CE56EBDFE3">export logs</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html#topic_sjg_bvt_gq">export offline-disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/export.html#topic_195D27B8B2B64A4E84CF2256636D54BD">export stack-traces</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/gc.html">gc</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/get.html">get</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/help.html">help</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/hint.html">hint</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/history.html">history</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/import.html">import</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/import.html#topic_vnv_grz_ck">import cluster-configuration</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/import.html#topic_jw2_2ld_2l">import data</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html">list</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_j22_kzk_2l">list async-event-queues</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_ts1_qb1_dk">list clients</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_59DF60DE71AD4097B281749425254BFF">list deployed
</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_BC14AD57EA304FB3845766898D01BD04">list disk-stores</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_66016A698C334F4EBA19B99F51B0204B">list durable-cqs</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_DCC7CCBBEF5942B783A8F2A4A5B2FABF">list functions</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_B1D89671C7B74074899C7D52F15849ED">list gateways</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_B3B51B6DEA484EE086C4F657EC9831F2">list indexes</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#list_lucene_indexes">list lucene indexes</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_5B5BFB2E5F314210858641BE3A689637">list members</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/list.html#topic_F0ECEFF26086474498598035DD83C588">list regions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/load-balance.html">load-balance gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/locate.html">locate entry</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/netstat.html">netstat</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/pause.html">pause gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/pdx.html">pdx rename</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/put.html">put</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/query.html">query</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/rebalance.html">rebalance</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/remove.html">remove</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/resume.html">resume gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/revoke.html">revoke missing-disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/run.html">run</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/search.html">search lucene</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/set.html">set variable</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/sh.html">sh</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/show.html">show</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/show.html#topic_1225347FAD6541DF995C9999650165B1">show dead-locks</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/show.html#topic_45AAEDAC3AFF46EC9BB68B24FC9A32B3">show log</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/show.html#topic_6EB786C63AEB46179EEE8FA18624295A">show metrics</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/show.html#topic_7B3D624D5B4F41D1A0F8A9C3C8B2E780">show missing-disk-stores</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/show.html#topic_395C96B500AD430CBF3D3C8886A4CD2E">show subscription-queue-size</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/shutdown.html">shutdown</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/sleep.html">sleep</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html">start</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_67738A5B68E84DEE95D1C92DAB2E26E5">start gateway-receiver</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_AB8BA3F42B9645A8BE9BD97CE2F839A8">start gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_D00507416F3944DFAB48D2FA2B9E4A31">start jconsole</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_5B5BF8BEE905463D8B7762B89E2D65E7">start jvisualvm
</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_591260CF25D64562A0EDD7260D2AC6D4">start locator</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_E906BA7D9E7F4C5890FEFA7ECD40DD77">start pulse</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/start.html#topic_3764EE2DB18B4AE4A625E0354471738A">start server</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/status.html">status</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/status.html#topic_ts1_qb1_dk2">status cluster-config-service</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/status.html#topic_B0F45DC2D5F64FB1A2F738206BC6539E">status gateway-receiver</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/status.html#topic_6F539877F0564F05AF264A9E704EC842">status gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/status.html#topic_E96D0EFA513C4CD79B833FCCDD69C832">status locator</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/status.html#topic_E5DB49044978404D9D6B1971BF5D400D">status server</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/stop.html">stop</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/stop.html#topic_CD1D526FD6F84A7B80B25C741229ED30">stop gateway-receiver
</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/stop.html#topic_0BBDD4B3B8A44A65A610F766C9E85519">stop gateway-sender</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/stop.html#topic_EF61C54B35BA4AB7B14E58CF912F283E">stop locator</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/stop.html#topic_723EE395A63A40D6819618AFC2902125">stop server</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/undeploy.html">undeploy</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/validate.html">validate offline-disk-store</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command-pages/version.html">version</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/command_scripting.html">Creating and Running gfsh Command Scripts</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/os_command_line_execution.html">Running gfsh Commands on the OS Command Line</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gfsh/cache_xml_2_gfsh.html">Mapping cache.xml Elements to gfsh Configuration Commands</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/gemcached/chapter_overview.html">Gemcached</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/gemcached/about_gemcached.html">How Gemcached Works</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gemcached/deploying_gemcached.html">Deploying and Configuring a Gemcached Server</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/gemcached/advantages.html">Advantages of Gemcached over Memcached</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/http_session_mgmt/chapter_overview.html">HTTP Session Management Modules</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/quick_start.html">HTTP Session Management Quick Start</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/http_why_use_gemfire.html">Advantages of Using Geode for Session Management</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/common_gemfire_topologies.html">Common Topologies for HTTP Session Management</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tc_additional_info.html">General Information on HTTP Session Management</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/session_state_log_files.html">Session State Log Files</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/http_session_mgmt/session_mgmt_tcserver.html">HTTP Session Management Module for Pivotal tc Server</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tc_installing_the_module.html">Installing the HTTP Module for tc Server</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tc_setting_up_the_module.html">Setting Up the HTTP Module for tc Server</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tc_changing_gf_default_cfg.html">Changing the Default Geode Configuration in the tc Server Module</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/interactive_mode_ref.html">Interactive Configuration Reference for the tc Server Module
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/http_session_mgmt/session_mgmt_tomcat.html">HTTP Session Management Module for Tomcat</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tomcat_installing_the_module.html">Installing the HTTP Module for Tomcat</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tomcat_setting_up_the_module.html">Setting Up the HTTP Module for Tomcat</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/tomcat_changing_gf_default_cfg.html">Changing the Default Geode Configuration in the Tomcat Module</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/http_session_mgmt/session_mgmt_weblogic.html">HTTP Session Management Module for AppServers</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/weblogic_setting_up_the_module.html">Setting Up the HTTP Module for AppServers
</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/http_session_mgmt/weblogic_changing_gf_default_cfg.html">Changing the Default Geode Configuration in the AppServers Module
</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/http_session_mgmt/weblogic_common_configuration_changes.html">Common Geode Configuration Changes for AppServers</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/pulse/pulse-overview.html">Geode Pulse</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/pulse/pulse-requirements.html">Pulse System Requirements</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/pulse/pulse-embedded.html">Running Pulse in Embedded Mode (Quick Start)</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/pulse/pulse-hosted.html">Hosting Pulse on a Web Application Server</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/pulse/pulse-auth.html">Configuring Pulse Authentication</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/pulse/pulse-views.html">Using Pulse Views</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/redis_adapter.html">Geode Redis Adapter</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/redis_adapter.html#using-the-redis-adapter">Using the Redis Adapter</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/redis_adapter.html#how-the-redis-adapter-works">How the Redis Adapter Works</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/redis_adapter.html#advantages-of-geode-over-redis">Advantages of Geode over a Redis Server</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/tools_modules/lucene_integration.html">Apache Lucene Integration</a>
<ul>
<li>
<a href="/docs/guide/15/tools_modules/lucene_integration.html#using-the-apache-lucene-integration">Using the Apache Lucene Integration</a>
</li>
<li>
<a href="/docs/guide/15/tools_modules/lucene_integration.html#LuceneRandC">Requirements and Caveats</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/book_intro.html">Reference</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/gemfire_properties.html">gemfire.properties and gfsecurity.properties (Geode Properties)</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/non-ascii_strings_in_config_files.html">Using Non-ASCII Strings in Apache Geode Property Files</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/chapter_overview_cache_xml.html">cache.xml
</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/elements_ref.html">cache.xml Quick Reference</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache-elements-list.html">&lt;cache&gt; Element Hierarchy</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html">&lt;cache&gt; Element Reference</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#cache-transaction-manager">&lt;cache-transaction-manager&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#transaction-listener">&lt;transaction-listener&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#transaction-writer">&lt;transaction-writer&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#dynamic-region-factory">&lt;dynamic-region-factory&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-sender">&lt;gateway-sender&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-event-filter">&lt;gateway-event-filter&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-event-substitution-filter">&lt;gateway-event-substitution-filter&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-transport-filter">&lt;gateway-transport-filter&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-receiver">&lt;gateway-receiver&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-receiver_gateway-transport-filter">&lt;gateway-transport-filter&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#gateway-conflict-resolver">&lt;gateway-conflict-resolver&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#async-event-queue">&lt;async-event-queue&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#async-event-listener">&lt;async-event-listener&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#cache-server">&lt;cache-server&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#client-subscription">&lt;client-subscription&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#custom-load-probe">&lt;custom-load-probe&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#pool">&lt;pool&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#locator">&lt;locator&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#server">&lt;server&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#disk-store">&lt;disk-store&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#disk-dirs">&lt;disk-dirs&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#disk-dir">&lt;disk-dir&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#pdx">&lt;pdx&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#pdx-serializer_24898989679">&lt;pdx-serializer&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#region-attributes">&lt;region-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#key-constraint">&lt;key-constraint&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#value-constraint">&lt;value-constraint&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#region-time-to-live">&lt;region-time-to-live&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#region-idle-time">&lt;region-idle-time&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#region-idle-time_expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#region-idle-time_custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry-time-to-live">&lt;entry-time-to-live&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry-idle-time_expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry-time-to-live_custom_expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry-idle-time">&lt;entry-idle-time&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry-idle-time_expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry-idle-time_custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#partition-attributes">&lt;partition-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#partition-resolver">&lt;partition-resolver&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#partition-listener">&lt;partition-listener&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#fixed-partition-attributes">&lt;fixed-partition-attributes&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#membership-attributes">&lt;membership-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#required-role">&lt;required-role&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#subscription-attributes">&lt;subscription-attributes&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#topic_qsb_pnw_bm">&lt;cache-loader&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#topic_h53_pnw_bm">&lt;cache-writer&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#cache-listener">&lt;cache-listener&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#topic_pcd_t25_44">&lt;compressor&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#eviction-attributes">&lt;eviction-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#lru-entry-count">&lt;lru-entry-count&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#lru-heap-percentage">&lt;lru-heap-percentage&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#lru-memory-size">&lt;lru-memory-size&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#jndi-bindings">&lt;jndi-bindings&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#jndi-binding">&lt;jndi-binding&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#config-property">&lt;config-property&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#config-property-name">&lt;config-property-name&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#config-property-type">&lt;config-property-type&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#config-property-value">&lt;config-property-value&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#region">&lt;region&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#index">&lt;index&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#luceneindex">&lt;lucene:index&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#lucenefield">&lt;lucene:field&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#entry">&lt;entry&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#key">&lt;key&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#string">&lt;string&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#declarable">&lt;declarable&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#value">&lt;value&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#string">&lt;string&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#declarable">&lt;declarable&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#region_region">&lt;region&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#vm-root-region">&lt;vm-root-region&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#function-service">&lt;function-service&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#function">&lt;function&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#resource-manager">&lt;resource-manager&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#serialization-registration">&lt;serialization-registration&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#serializer">&lt;serializer&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#instantiator">&lt;instantiator&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#backup">&lt;backup&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/cache_xml.html#initializer">&lt;initializer&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#declarable">&lt;declarable&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#class-name_parameter">&lt;class-name&gt; and &lt;parameter&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#declarable">&lt;declarable&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#string">&lt;string&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache-elements-list.html">
&lt;client-cache&gt; Element Hierarchy
</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html">&lt;client-cache&gt; Element Reference</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-cache-transaction-manager">&lt;cache-transaction-manager&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-transaction-listener">&lt;transaction-listener&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-transaction-writer">&lt;transaction-writer&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-pool">&lt;pool&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-locator">&lt;locator&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-server">&lt;server&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-disk-store">&lt;disk-store&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-disk-dirs">&lt;disk-dirs&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-disk-dir">&lt;disk-dir&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-pdx">&lt;pdx&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-pdx-serializer">&lt;pdx-serializer&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-region-attributes">&lt;region-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-key-constraint">&lt;key-constraint&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-value-constraint">&lt;value-constraint&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-region-time-to-live">&lt;region-time-to-live&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-region-idle-time">&lt;region-idle-time&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-rit-expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-rit-custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-entry-time-to-live">&lt;entry-time-to-live&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-ettl-expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-ettl-custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-entry-idle-time">&lt;entry-idle-time&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-eit-expiration-attributes">&lt;expiration-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-eit-custom-expiry">&lt;custom-expiry&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#topic_qsb_pnw_bm">&lt;cache-loader&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/cache_xml.html#topic_h53_pnw_bm">&lt;cache-writer&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-cache-listener">&lt;cache-listener&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-eviction-attributes">&lt;eviction-attributes&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-lru-entry-count">&lt;lru-entry-count&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-lru-heap-percentage">&lt;lru-heap-percentage&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-lru-memory-size">&lt;lru-memory-size&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-jndi-bindings">&lt;jndi-bindings&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-jndi-binding">&lt;jndi-binding&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-config-property">&lt;config-property&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-region">&lt;region&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-r-region-attributes">&lt;region-attributes&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-index">&lt;index&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-entry">&lt;entry&gt;</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-key">&lt;key&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-string">&lt;string&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-declarable">&lt;declarable&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-value">&lt;value&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-v-string">&lt;string&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-v-declarable">&lt;declarable&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-ra-region">&lt;region&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-function-service">&lt;function-service&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-function">&lt;function&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-resource-manager">&lt;resource-manager&gt;</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-serialization-registration">&lt;serialization-registration&gt;</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-serializer">&lt;serializer&gt;</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-instantiator">&lt;instantiator&gt;</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/client-cache.html#cc-initializer">&lt;initializer&gt;</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/topics/chapter_overview_regionshortcuts.html">Region Shortcuts</a>
<ul>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_table.html">Region Shortcuts Quick Reference</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_w2h_3cd_lk">
LOCAL
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_wd5_lpy_lk">
LOCAL_HEAP_LRU
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_adk_y4y_lk">
LOCAL_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_l5r_y4y_lk">
LOCAL_PERSISTENT
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_a45_y4y_lk">
LOCAL_PERSISTENT_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_ow5_4qy_lk">
PARTITION
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_twx_y4y_lk">
PARTITION_HEAP_LRU
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_js1_z4y_lk">
PARTITION_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_d4k_jpy_lk">
PARTITION_PERSISTENT
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_v5l_jpy_lk">
PARTITION_PERSISTENT_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_v4m_jpy_lk">
PARTITION_PROXY
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_c1n_jpy_lk">
PARTITION_PROXY_REDUNDANT
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_shn_jpy_lk">
PARTITION_REDUNDANT
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_m4n_jpy_lk">
PARTITION_REDUNDANT_HEAP_LRU
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_own_jpy_lk">
PARTITION_REDUNDANT_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_bd4_jpy_lk">
PARTITION_REDUNDANT_PERSISTENT
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_xqq_tvc_lk">
PARTITION_REDUNDANT_PERSISTENT_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_wq4_jpy_lk">
REPLICATE
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_xx4_jpy_lk">
REPLICATE_HEAP_LRU
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_t2p_jpy_lk">
REPLICATE_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_emp_jpy_lk">
REPLICATE_PERSISTENT
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_tsp_jpy_lk">
REPLICATE_PERSISTENT_OVERFLOW
</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/region_shortcuts_reference.html#reference_n1q_jpy_lk">
REPLICATE_PROXY
</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/handling_exceptions_and_failures.html">
Exceptions and System Failures</a>
</li>
<li>
<a href="/docs/guide/15/reference/topics/memory_requirements_for_cache_data.html">Memory Requirements for Cached Data</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/15/reference/statistics_list.html">Geode Statistics List</a>
<ul>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_DEF8D3644D3246AB8F06FE09A37DC5C8">Cache Performance (CachePerfStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_EF5C2C59BFC74FFB8607F9571AB9A471">Cache Server (CacheServerStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_B08C0783BBF9489E8BB48B4AEC597C62">Client-Side Notifications (CacheClientUpdaterStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_04B7D7387E584712B7710B5ED1E876BB">Client-to-Server Messaging Performance (ClientStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_6C247F61DB834C079A16BE92789D4692">Client Connection Pool (PoolStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_66C0E7748501480B85209D57D24256D5">Continuous Querying (CQStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_D4ABED3FF94245C0BEE0F6FC9481E867">Delta Propagation (DeltaPropagationStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_6C2BECC63A83456190B029DEDB8F4BE3">Disk Space Usage (DiskDirStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_983BFC6D53C74829A04A91C39E06315F">Disk Usage and Performance (DiskRegionStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_ACB4161F10D64BC0B15871D003FF6FDF">Distributed System Messaging (DistributionStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_78D346A580724E1EA645E31626EECE40">Distributed Lock Services (DLockStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_5E212DDB0E8640689AD0A4659512E17A">Function Execution (FunctionServiceStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_C4199A541B1F4B82B6178C416C0FAE4B">Gateway Queue (GatewayStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_86A61860024B480592DAC67FFB882538">Indexes (IndexStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_607C3867602E410CAE5FAB26A7FF1CB9">JVM Performance</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_C48B654F973E4B44AD825D459C23A6CD">Locator (LocatorStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#LuceneStats">Lucene Indexes (LuceneIndexStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#topic_ohc_tjk_w5">Off-Heap (OffHeapMemoryStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_923B28F01BC3416786D3AFBD87F22A5E">Operating System Statistics - Linux</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_35AC170770C944C3A336D9AEC2D2F7C5">Partitioned Regions (PartitionedRegion&lt;partitioned_region_name&gt;Statistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_374FBD92A3B74F6FA08AA23047929B4F">Region Entry Eviction – Count-Based (LRUStatistics)
</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_3D2AA2BCE5B6485699A7B6ADD1C49FF7">Region Entry Eviction – Size-based (LRUStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_5362EF9AECBC48D69475697109ABEDFA">Server Notifications for All Clients (CacheClientNotifierStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_E03865F509E543D9B8F9462B3DA6255E">Server Notifications for Single Client (CacheClientProxyStatistics)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_3AB1C0AA55014163A2BBF68E13D25E3A">Server-to-Client Messaging Performance (ClientSubscriptionStats)</a>
</li>
<li>
<a href="/docs/guide/15/reference/statistics_list.html#section_55F3AF6413474317902845EE4996CC21">Statistics Collection (StatSampler)</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/15/reference/topics/glossary.html">Glossary</a>
</li>
</ul>
</div>
</div>
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<h1 class="title-container" >
Diagnosing System Problems
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<p>This section provides possible causes and suggested responses for system problems.</p>
<ul>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_7BC1FF8CE0FC492CB49235FC4BC4060B">Locator does not start</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_D51F5FA86ABA43C699B593D890BC3E28">Application or cache server process does not start</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_53D97CED679443F28E20E8B08C699056">Application or cache server does not join the distributed system</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_D607C96A6CBE42FD880F1463A20A8BEF">Member process seems to hang</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E3B4A6DB81AB4C659C6093D2D61EFD71">Member process does not read settings from the gemfire.properties file</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_B0698527A4DF4D84877B1AF66291ABFD">Cache creation fails - must match schema definition root</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_B2DAD06E80A4475D96FF2ACCF30FE198">Cache is not configured properly</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_6B4E2AD4ECBB4C08B8F1DB5E07AFE7F6">Unexpected results for keySetOnServer and containsKeyOnServer</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_9276E09D9FAC408E899F73B7068E80C6">Data operation returns PartitionOfflineException</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_A3BB709B754949C6981C431F1F8023D6">Entries are not being evicted or expired as expected</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_346C62F16B19491E83B59B0A51D9E2B6">Cannot find the log file</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_3CFAA7BA258B43A795AEAB09F9DD9AAB">OutOfMemoryError</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_B49BD03F4CA241C7BED4A2C4D5936A7A">PartitionedRegionDistributionException</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_7DE15A6C99974821B6CA418BC2AF98F1">PartitionedRegionStorageException</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_AFA1D06BC3AA44A4AB0593FD1EF0B0B7">Application crashes without producing an exception</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_06C68EA0DACC46C58AA88E98C19AD2D8">Timeout alert</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_66D11C8E84F941B58800EDB52194B087">Member produces SocketTimeoutException</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_8C7CB2EA0A274DAF90083FECE0BF3B1F">Member logs ForcedDisconnectException, Cache and DistributedSystem forcibly closed</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_778D150443044847B1C73B9E02BE247B">Members cannot see each other</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E31AFADE4A3A45C7A6EABB67697CFF33">One part of the distributed system cannot see another part</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_04CEF27475924E5D9860BEE6D64C49E2">Data distribution has stopped, although member processes are running</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_7A6113ED20044B8C868483AABC45216E">Distributed-ack operations take a very long time to complete</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E5DB25F2CC454510A9E58790C09C8CE3">Slow system performance</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_F93DD765FF2A43439D3FF7936F8883DE">Can’t get Windows performance data</a></li>
<li> <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E70C332303A242BEAE9D2C0A2EE70E0A">Java applications on 64-bit platforms hang or use 100% CPU</a></li>
</ul>
<h2 id="locator-does-not-start"><a id="diagnosing_system_probs__section_7BC1FF8CE0FC492CB49235FC4BC4060B" class="no-quick-link"></a>Locator does not start</h2>
<p>Invocation of a locator with gfsh fails with an error like this:</p>
<pre class="highlight plaintext"><code>Starting a GemFire Locator in C:\devel\gfcache\locator\locator
The Locator process terminated unexpectedly with exit status 1. Please refer to the log
file in C:\devel\gfcache\locator\locator for full details.
Exception in thread "main" java.lang.RuntimeException: An IO error occurred while
starting a Locator in C:\devel\gfcache\locator\locator on 192.0.2.0[10999]: Network is
unreachable; port (10999) is not available on 192.0.2.0.
at
org.apache.geode.distributed.LocatorLauncher.start(LocatorLauncher.java:622)
at
org.apache.geode.distributed.LocatorLauncher.run(LocatorLauncher.java:513)
at
org.apache.geode.distributed.LocatorLauncher.main(LocatorLauncher.java:188)
Caused by: java.net.BindException: Network is unreachable; port (10999) is not available on
192.0.2.0.
at
org.apache.geode.distributed.AbstractLauncher.assertPortAvailable(AbstractLauncher.java:136)
at
org.apache.geode.distributed.LocatorLauncher.start(LocatorLauncher.java:596)
...
</code></pre>
<p>This indicates a mismatch somewhere in the address, port pairs used for locator startup and configuration. The address you use for locator startup must match the address you list for the locator in the <code>gemfire.properties</code> locators specification. Every member of the locator’s distributed system, including the locator itself, must have the complete locators specification in the <code>gemfire.properties</code>.</p>
<p>Response:</p>
<ul>
<li> Check that your locators specification includes the address you are using to start your locator.</li>
<li> If you use a bind address, you must use numeric addresses for the locator specification. The bind address will not resolve to the machine’s default address.</li>
<li> If you are using a 64-bit Linux system, check whether your system is experiencing the leap second bug. See <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E70C332303A242BEAE9D2C0A2EE70E0A">Java applications on 64-bit platforms hang or use 100% CPU</a> for more information.</li>
</ul>
<h2 id="application-or-cache-server-process-does-not-start"><a id="diagnosing_system_probs__section_D51F5FA86ABA43C699B593D890BC3E28" class="no-quick-link"></a>Application or cache server process does not start</h2>
<p>If the process tries to start and then silently disappears, on Windows this indicates a memory problem.</p>
<p>Response:</p>
<ul>
<li><p>On a Windows host, decrease the maximum JVM heap size. This property is specified on the <code>gfsh</code> command line:</p>
<pre class="highlight plaintext"><code>gfsh&gt;start server --name=server_name --max-heap=1024m
</code></pre>
<p>For details, see <a href="/docs/guide/15/managing/monitor_tune/system_member_performance_jvm_mem_settings.html#sys_mem_perf">JVM Memory Settings and System Performance</a>.</p></li>
<li><p>If this doesn’t work, try rebooting.</p></li>
</ul>
<h2 id="application-or-cache-server-does-not-join-the-distributed-system"><a id="diagnosing_system_probs__section_53D97CED679443F28E20E8B08C699056" class="no-quick-link"></a>Application or cache server does not join the distributed system</h2>
<p>Response: Check these possible causes.</p>
<ul>
<li> Network problem—the most common cause. First, try to ping the other hosts.</li>
<li> Firewall problems. If members of your distributed Geode system are located outside the LAN, check whether the firewall is blocking communication. Geode is a network-centric distributed system, so if you have a firewall running on your machine, it could cause connection problems. For example, your connections may fail if your firewall places restrictions on inbound or outbound permissions for Java-based sockets. You may need to modify your firewall configuration to permit traffic to Java applications running on your machine. The specific configuration depends on the firewall you are using.</li>
<li> Wrong multicast port when using multicast for membership. Check the <code>gemfire.properties</code> file of this application or cache server to see that the mcast-port is configured correctly. If you are running multiple distributed systems at your site, each distributed system must use a unique multicast port.</li>
<li> Can not connect to locator (when using TCP for discovery).
<ul>
<li> Check that the locators attribute in this process’s <code>gemfire.properties</code> has the correct IP address for the locator.</li>
<li> Check that the locator process is running. If not, see instructions for related problem, <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_04CEF27475924E5D9860BEE6D64C49E2">Data distribution has stopped, although member processes are running</a>.</li>
<li> Bind address set incorrectly on a multi-homed host. When you specify the bind address, use the IP address rather than the host name. Sometimes multiple network adapters are configured with the same hostname. See <a href="/docs/guide/15/topologies_and_comm/topology_concepts/chapter_overview.html#concept_7628F498DB534A2D8A99748F5DA5DC94">Topology and Communication General Concepts</a> for more information about using bind addresses.</li>
</ul></li>
<li> Wrong version of Geode . A version mismatch can cause the process to hang or crash. Check the software version with the gemfire version command.</li>
</ul>
<h2 id="member-process-seems-to-hang"><a id="diagnosing_system_probs__section_D607C96A6CBE42FD880F1463A20A8BEF" class="no-quick-link"></a>Member process seems to hang</h2>
<p>Response:</p>
<ul>
<li> <strong>During initialization</strong>—For persistent regions, the member may be waiting for another member with more recent data to start and load from its disk stores. See <a href="/docs/guide/15/managing/disk_storage/chapter_overview.html">Disk Storage</a>. Wait for the initialization to finish or time out. The process could be busy—some caches have millions of entries, and they can take a long time to load. Look for this especially with cache servers, because their regions are typically replicas and therefore store all the entries in the region. Applications, on the other hand, typically store just a subset of the entries. For partitioned regions, if the initialization eventually times out and produces an exception, the system architect needs to repartition the data.</li>
<li> <strong>For a running process</strong>—Investigate whether another member is initializing. Under some optional distributed system configurations, a process can be required to wait for a response from other processes before it proceeds.</li>
</ul>
<h2 id="member-process-does-not-read-settings-from-the-gemfire.properties-file"><a id="diagnosing_system_probs__section_E3B4A6DB81AB4C659C6093D2D61EFD71" class="no-quick-link"></a>Member process does not read settings from the gemfire.properties file</h2>
<p>Either the process can’t find the configuration file or, if it is an application, it may be doing programmatic configuration.</p>
<p>Response:</p>
<ul>
<li> Check that the <code>gemfire.properties</code> file is in the right directory.</li>
<li> Make sure the process is not picking up settings from another <code>gemfire.properties</code> file earlier in the search path. Geode looks for a <code>gemfire.properties</code> file in the current working directory, the home directory, and the CLASSPATH, in that order.</li>
<li> For an application, check the documentation to see whether it does programmatic configuration. If so, the properties that are set programmatically cannot be reset in a <code>gemfire.properties</code> file. See your application’s customer support group for configuration changes.</li>
</ul>
<h2 id="cache-creation-fails---must-match-schema-definition-root"><a id="diagnosing_system_probs__section_B0698527A4DF4D84877B1AF66291ABFD" class="no-quick-link"></a>Cache creation fails - must match schema definition root</h2>
<p>System member startup fails with an error like one of these:</p>
<pre class="highlight plaintext"><code>Exception in thread "main" org.apache.geode.cache.CacheXmlException:
While reading Cache XML file:/C:/gemfire/client_cache.xml.
Error while parsing XML, caused by org.xml.sax.SAXParseException:
Document root element "client-cache", must match DOCTYPE root "cache".
</code></pre>
<pre class="highlight plaintext"><code>Exception in thread "main" org.apache.geode.cache.CacheXmlException:
While reading Cache XML file:/C:/gemfire/cache.xml.
Error while parsing XML, caused by org.xml.sax.SAXParseException:
Document root element "cache", must match DOCTYPE root "client-cache".
</code></pre>
<p>Geode declarative cache creation uses one of two root element pairs: <code>cache</code> or <code>client-cache</code>. The name must be the same in both places.</p>
<p>Response:</p>
<ul>
<li> Modify your <code>cache.xml</code> file so it has the proper XML namespace and schema definition.</li>
</ul>
<p><strong>For peers and servers:</strong></p>
<pre class="highlight plaintext"><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;cache
xmlns="http://geode.apache.org/schema/cache"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://geode.apache.org/schema/cache http://geode.apache.org/schema/cache/cache-1.0.xsd"
version="1.0”&gt;
...
&lt;/cache&gt;
</code></pre>
<p><strong>For clients:</strong></p>
<pre class="highlight plaintext"><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;client-cache
xmlns="http://geode.apache.org/schema/cache"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://geode.apache.org/schema/cache http://geode.apache.org/schema/cache/cache-1.0.xsd"
version="1.0"&gt;
...
&lt;/client-cache&gt;
</code></pre>
<h2 id="cache-is-not-configured-properly"><a id="diagnosing_system_probs__section_B2DAD06E80A4475D96FF2ACCF30FE198" class="no-quick-link"></a>Cache is not configured properly</h2>
<p>An empty cache can be a normal condition. Some applications start with an empty cache and populate it programmatically, but others are designed to bulk load data during initialization.</p>
<p>Response:</p>
<p>If your application should start with a full cache but it comes up empty, check these possible causes:</p>
<ul>
<li> <strong>No regions</strong>—If the cache has no regions, the process isn’t reading the cache configuration file. Check that the name and location of the cache configuration file match those configured in the cache-xml-file attribute in <code>gemfire.properties</code>. If they match, the process may not be reading <code>gemfire.properties</code>. See <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E3B4A6DB81AB4C659C6093D2D61EFD71">Member process does not read settings from the gemfire.properties file</a>.</li>
<li> <strong>Regions without data</strong>—If the cache starts with regions, but no data, this process may not have joined the correct distributed system. Check the log file for messages that indicate other members. If you don’t see any, the process may be running alone in its own distributed system. In a process that is clearly part of the correct distributed system, regions without data may indicate an implementation design error.</li>
</ul>
<h2 id="unexpected-results-for-keysetonserver-and-containskeyonserver"><a id="diagnosing_system_probs__section_6B4E2AD4ECBB4C08B8F1DB5E07AFE7F6" class="no-quick-link"></a>Unexpected results for keySetOnServer and containsKeyOnServer</h2>
<p>Client calls to keySetOnServer and containsKeyOnServer can return incomplete or inconsistent results if your server regions are not configured as partitioned or replicated regions.</p>
<p>A non-partitioned, non-replicate server region may not hold all data for the distributed region, so these methods would operate on a partial view of the data set.</p>
<p>In addition, the client methods use the least loaded server for each method call, so may use different servers for two calls. If the servers do not have a consistent view in their local data set, responses to client requests will vary.</p>
<p>The consistent view is only guaranteed by configuring the server regions with partitioned or replicate data-policy settings. Non-server members of the server system can use any allowable configuration as they are not available to take client requests.</p>
<p>The following server region configurations give inconsistent results. These configurations allow different data on different servers. There is no additional messaging on the servers, so no union of keys across servers or checking other servers for the key in question.</p>
<ul>
<li> Normal</li>
<li> Mix (replicated, normal, empty) for a single distributed region. Inconsistent results depending on which server the client sends the request to</li>
</ul>
<p>These configurations provide consistent results:</p>
<ul>
<li> Partitioned server region</li>
<li> Replicated server region</li>
<li> Empty server region: keySetOnServer returns the empty set and containsKeyOnServer returns false</li>
</ul>
<p>Response: Use a partitioned or replicate data-policy for your server regions. This is the only way to provide a consistent view to clients of your server data set. See <a href="/docs/guide/15/developing/region_options/chapter_overview.html">Region Data Storage and Distribution Options</a>.</p>
<h2 id="data-operation-returns-partitionofflineexception"><a id="diagnosing_system_probs__section_9276E09D9FAC408E899F73B7068E80C6" class="no-quick-link"></a>Data operation returns PartitionOfflineException</h2>
<p>In partitioned regions that are persisted to disk, if you have any members offline, the partitioned region will still be available but may have some buckets represented only in offline disk stores. In this case, methods that access the bucket entries return a PartitionOfflineException, similar to this:</p>
<pre class="highlight plaintext"><code>org.apache.geode.cache.persistence.PartitionOfflineException:
Region /__PR/_B__root_partitioned__region_7 has persistent data that is no
longer online stored at these locations:
[/192.0.2.1:/export/straw3/users/jpearson/bugfix_Apr10/testCL/hostB/backupDirectory
created at timestamp 1270834766733 version 0]
</code></pre>
<p>Response: Bring the missing member online, if possible. This restores the buckets to memory and you can work with them again. If the missing member cannot be brought back online, or the disk stores for the member are corrupt, you may need to revoke the member, which will allow the system to create the buckets in new members and resume operations with the entries. See <a href="/docs/guide/15/managing/disk_storage/handling_missing_disk_stores.html#handling_missing_disk_stores">Handling Missing Disk Stores</a>.</p>
<h2 id="entries-are-not-being-evicted-or-expired-as-expected"><a id="diagnosing_system_probs__section_A3BB709B754949C6981C431F1F8023D6" class="no-quick-link"></a>Entries are not being evicted or expired as expected</h2>
<p>Check these possible causes.</p>
<ul>
<li> Transactions—Entries that are old enough for eviction may remain in the cache if they are involved in a transaction. Further, transactions never time out, so if a transaction hangs, the entries involved in the transaction will remain stuck in the cache. If you have a process with a hung transaction, you may need to end the process to remove the transaction. In your application programming, do not leave transactions open ended. Program all transactions to end with a commit or a rollback. See <a href="/docs/guide/15/developing/transactions/working_with_transactions.html#concept_vyt_txz_vk">Using Eviction and Expiration Operations</a>.</li>
<li> Partitioned regions—For performance reasons, eviction and expiration behave differently in partitioned regions and can cause entries to be removed before you expect. See <a href="/docs/guide/15/developing/eviction/chapter_overview.html">Eviction</a> and <a href="/docs/guide/15/developing/expiration/chapter_overview.html">Expiration</a>.</li>
</ul>
<h2 id="cannot-find-the-log-file"><a id="diagnosing_system_probs__section_346C62F16B19491E83B59B0A51D9E2B6" class="no-quick-link"></a>Cannot find the log file</h2>
<p>Operating without a log file can be a normal condition, so the process does not log a warning.</p>
<p>Response:</p>
<ul>
<li> Check whether the log-file attribute is configured in <code>gemfire.properties</code>. If not, logging defaults to standard output, and on Windows it may not be visible at all.</li>
<li> If log-file is configured correctly, the process may not be reading <code>gemfire.properties</code>. See <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_E3B4A6DB81AB4C659C6093D2D61EFD71">Member process does not read settings from the gemfire.properties file</a>.</li>
</ul>
<h2 id="outofmemoryerror"><a id="diagnosing_system_probs__section_3CFAA7BA258B43A795AEAB09F9DD9AAB" class="no-quick-link"></a>OutOfMemoryError</h2>
<p>An application gets an OutOfMemoryError if it needs more object memory than the process is able to give. The messages include java.lang.OutOfMemoryError.</p>
<p>Response:</p>
<p>The process may be hitting its virtual address space limits. The virtual address space has to be large enough to accommodate the heap, code, data, and dynamic link libraries (DLLs).</p>
<ul>
<li> If your application is out of memory frequently, you may want to profile it to determine the cause.</li>
<li> If you suspect your heap size is set too low, you can increase direct memory by resetting the maximum heap size, using -Xmx. For details, see <a href="/docs/guide/15/managing/monitor_tune/system_member_performance_jvm_mem_settings.html#sys_mem_perf">JVM Memory Settings and System Performance</a>.</li>
<li><p>You may need to lower the thread stack size. The default thread stack size is quite large: 512kb on Sparc and 256kb on Intel for 1.3 and 1.4 32-bit JVMs, 1mb with the 64-bit Sparc 1.4 JVM; and 128k for 1.2 JVMs. If you have thousands of threads then you might be wasting a significant amount of stack space. If this is your problem, the error may be this:</p>
<pre class="highlight plaintext"><code>OutOfMemoryError: unable to create new native thread
</code></pre>
<p>The minimum setting in 1.3 and 1.4 is 64kb, and in 1.2 is 32kb. You can change the stack size using the -Xss flag, like this: -Xss64k</p></li>
<li><p>You can also control memory use by setting entry limits for the regions.</p></li>
</ul>
<h2 id="partitionedregiondistributionexception"><a id="diagnosing_system_probs__section_B49BD03F4CA241C7BED4A2C4D5936A7A" class="no-quick-link"></a>PartitionedRegionDistributionException</h2>
<p>The org.apache.geode.cache.PartitionedRegionDistributionException appears when Geode fails after many attempts to complete a distributed operation. This exception indicates that no data store member can be found to perform a destroy, invalidate, or get operation.</p>
<p>Response:</p>
<ul>
<li> Check the network for traffic congestion or a broken connection to a member.</li>
<li> Look at the overall installation for problems, such as operations at the application level set to a higher priority than the Geode processes.</li>
<li> If you keep seeing PartitionedRegionDistributionException, you should evaluate whether you need to start more members.</li>
</ul>
<h2 id="partitionedregionstorageexception"><a id="diagnosing_system_probs__section_7DE15A6C99974821B6CA418BC2AF98F1" class="no-quick-link"></a>PartitionedRegionStorageException</h2>
<p>The org.apache.geode.cache.PartitionedRegionStorageException appears when Geode can’t create a new entry. This exception arises from a lack of storage space for put and create operations or for get operations with a loader. PartitionedRegionStorageException often indicates data loss or impending data loss.</p>
<p>The text string indicates the cause of the exception, as in these examples:</p>
<pre class="highlight plaintext"><code>Unable to allocate sufficient stores for a bucket in the partitioned region....
</code></pre>
<pre class="highlight plaintext"><code>Ran out of retries attempting to allocate a bucket in the partitioned region....
</code></pre>
<p>Response:</p>
<ul>
<li> Check the network for traffic congestion or a broken connection to a member.</li>
<li> Look at the overall installation for problems, such as operations at the application level set to a higher priority than the Geode processes.</li>
<li> If you keep seeing PartitionedRegionStorageException, you should evaluate whether you need to start more members.</li>
</ul>
<h2 id="application-crashes-without-producing-an-exception"><a id="diagnosing_system_probs__section_AFA1D06BC3AA44A4AB0593FD1EF0B0B7" class="no-quick-link"></a>Application crashes without producing an exception</h2>
<p>If an application crashes without any exception, this may be caused by an object memory problem. The process is probably hitting its virtual address space limits. For details, see <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_3CFAA7BA258B43A795AEAB09F9DD9AAB">OutOfMemoryError</a>.</p>
<p>Response: Control memory use by setting entry limits for the regions.</p>
<h2 id="timeout-alert"><a id="diagnosing_system_probs__section_06C68EA0DACC46C58AA88E98C19AD2D8" class="no-quick-link"></a>Timeout alert</h2>
<p>If a distributed message does not get a response within a specified time, it sends an alert to signal that something might be wrong with the system member that hasn’t responded. The alert is logged in the sender’s log as a warning.</p>
<p>A timeout alert can be considered normal.</p>
<p>Response:</p>
<ul>
<li> If you’re seeing a lot of timeouts and you haven’t seen them before, check whether your network is flooded.</li>
<li> If you see these alerts constantly during normal operation, consider raising the ack-wait-threshold above the default 15 seconds.</li>
</ul>
<h2 id="member-produces-sockettimeoutexception"><a id="diagnosing_system_probs__section_66D11C8E84F941B58800EDB52194B087" class="no-quick-link"></a>Member produces SocketTimeoutException</h2>
<p>A client and server produces a SocketTimeoutException when it stops waiting for a response from the other side of the connection and closes the socket. This exception typically happens on the handshake or when establishing a callback connection.</p>
<p>Response:</p>
<p>Increase the default socket timeout setting for the member. This timeout is set separately for the client Pool. For a client/server configuration, adjust the &ldquo;read-timeout&rdquo; value as described in <a href="/docs/guide/15/reference/topics/client-cache.html#cc-pool">&lt;pool&gt;</a> or use the <code>org.apache.geode.cache.client.PoolFactory.setReadTimeout</code> method.</p>
<h2 id="member-logs-forceddisconnectexception,-cache-and-distributedsystem-forcibly-closed"><a id="diagnosing_system_probs__section_8C7CB2EA0A274DAF90083FECE0BF3B1F" class="no-quick-link"></a>Member logs ForcedDisconnectException, Cache and DistributedSystem forcibly closed</h2>
<p>A distributed system member’s Cache and DistributedSystem are forcibly closed by the system membership coordinator if it becomes sick or too slow to respond to heartbeat requests. When this happens, listeners receive RegionDestroyed notification with an opcode of FORCED_DISCONNECT. The Geode log file for the member shows a ForcedDisconnectException with the message</p>
<pre class="highlight plaintext"><code>This member has been forced out of the distributed system because it did not respond
within member-timeout milliseconds
</code></pre>
<p>Response:</p>
<p>To minimize the chances of this happening, you can increase the DistributedSystem property member-timeout. Take care, however, as this setting also controls the length of time required to notice a network failure. It should not be set too high.</p>
<h2 id="members-cannot-see-each-other"><a id="diagnosing_system_probs__section_778D150443044847B1C73B9E02BE247B" class="no-quick-link"></a>Members cannot see each other</h2>
<p>Suspect a network problem or a problem in the configuration of transport for memory and discovery.</p>
<p>Response:</p>
<ul>
<li> Check your network monitoring tools to see whether the network is down or flooded.</li>
<li> If you are using multi-homed hosts, make sure a bind address is set and consistent for all system members. For details about using bind addresses, see <a href="/docs/guide/15/topologies_and_comm/topology_concepts/chapter_overview.html#concept_7628F498DB534A2D8A99748F5DA5DC94">Topology and Communication General Concepts</a>.</li>
<li> Check that all the applications and cache servers are using the same locator address.</li>
</ul>
<h2 id="one-part-of-the-distributed-system-cannot-see-another-part"><a id="diagnosing_system_probs__section_E31AFADE4A3A45C7A6EABB67697CFF33" class="no-quick-link"></a>One part of the distributed system cannot see another part</h2>
<p>This situation can leave your caches in an inconsistent state. In networking circles, this kind of network outage is called the &ldquo;split brain problem.&rdquo;</p>
<p>Response:</p>
<ul>
<li> Restart all the processes to ensure data consistency.</li>
<li> Going forward, set up network monitoring tools to detect these kinds of outages quickly.</li>
<li> Enable network partition detection.</li>
</ul>
<p>Also see
<a href="/docs/guide/15/managing/troubleshooting/recovering_from_network_outages.html#rec_network_crash">Understanding and Recovering from Network Outages</a>.</p>
<h2 id="data-distribution-has-stopped,-although-member-processes-are-running"><a id="diagnosing_system_probs__section_04CEF27475924E5D9860BEE6D64C49E2" class="no-quick-link"></a>Data distribution has stopped, although member processes are running</h2>
<p>Suspect a problem with the network, the locator, or the multicast configuration, depending on the transport your distributed system is using.</p>
<p>Response:</p>
<ul>
<li><p>Check the health of your system members. Search the logs for this string:</p>
<pre class="highlight plaintext"><code>Uncaught exception
</code></pre>
<p>An uncaught exception means a severe error, often an OutOfMemoryError. See <a href="/docs/guide/15/managing/troubleshooting/diagnosing_system_probs.html#diagnosing_system_probs__section_3CFAA7BA258B43A795AEAB09F9DD9AAB">OutOfMemoryError</a>.</p></li>
<li><p>Check your network monitoring tools to see whether the network is down or flooded.</p></li>
<li><p>If you are using multicast, check whether the existing configuration is no long appropriate for the current network traffic.</p></li>
<li><p>Check whether the locators have stopped. For a list of the locators in use, check the locators property in one of the application <code>gemfire.properties</code> files.</p>
<ul>
<li> Restart the locator processes on the same hosts, if possible. The distributed system begins normal operation, and data distribution restarts automatically.</li>
<li> If a locator must be moved to another host or a different IP address, complete these steps:
<ol>
<li> Shut down all the members of the distributed system in the usual order.</li>
<li> Restart the locator process in its new location.</li>
<li> Edit all the gemfire.properties files to change this locator’s IP address in the locators attribute.</li>
<li> Restart the applications and cache servers in the usual order.</li>
</ol></li>
</ul></li>
<li><p>Create a watchdog daemon or service on each locator host to restart the locator process when it stops</p></li>
</ul>
<h2 id="distributed-ack-operations-take-a-very-long-time-to-complete"><a id="diagnosing_system_probs__section_7A6113ED20044B8C868483AABC45216E" class="no-quick-link"></a>Distributed-ack operations take a very long time to complete</h2>
<p>This problem can occur in systems with a great number of distributed-no-ack operations. That is, the presence of many no-ack operations can cause ack operation to take a long time to complete.</p>
<p>Response:</p>
<p>For information on alleviating this problem, see <a href="/docs/guide/15/managing/monitor_tune/slow_messages.html#slow_mess">Slow distributed-ack Messages</a>.</p>
<h2 id="slow-system-performance"><a id="diagnosing_system_probs__section_E5DB25F2CC454510A9E58790C09C8CE3" class="no-quick-link"></a>Slow system performance</h2>
<p>Slow system performance is sometimes caused by a buffer size that is too small for the objects being distributed.</p>
<p>Response:</p>
<p>If you are experiencing slow performance and are sending large objects (multiple megabytes), try increasing the socket buffer size settings in your system. For more information, see <a href="/docs/guide/15/managing/monitor_tune/socket_communication.html">Socket Communication</a>.</p>
<h2 id="can’t-get-windows-performance-data"><a id="diagnosing_system_probs__section_F93DD765FF2A43439D3FF7936F8883DE" class="no-quick-link"></a>Can’t get Windows performance data</h2>
<p>Attempting to run performance measurements for Geode on Windows can produce this error message:</p>
<pre class="highlight plaintext"><code>Can't get Windows performance data. RegQueryValueEx returned 5
</code></pre>
<p>This error can occur because incorrect information is returned when a Win32 application calls the ANSI version of RegQueryValueEx Win32 API with HKEY_PERFORMANCE_DATA. This error is described in Microsoft KB article ID 226371 at <a href="http://support.microsoft.com/kb/226371/en-us">http://support.microsoft.com/kb/226371/en-us</a>.</p>
<p>Response:</p>
<p>To successfully acquire Windows performance data, you need to verify that you have the proper registry key access permissions in the system registry. In particular, make sure that Perflib in the following registry path is readable (KEY_READ access) by the Geode process:</p>
<pre class="highlight plaintext"><code>HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib
</code></pre>
<p>An example of reasonable security on the performance data would be to grant administrators KEY_ALL_ACCESS access and interactive users KEY_READ access. This particular configuration would prevent non-administrator remote users from querying performance data.</p>
<p>See <a href="http://support.microsoft.com/kb/310426">http://support.microsoft.com/kb/310426</a> and <a href="http://support.microsoft.com/kb/146906">http://support.microsoft.com/kb/146906</a> for instructions about how to ensure that Geode processes have access to the registry keys associated with performance.</p>
<h2 id="java-applications-on-64-bit-platforms-hang-or-use-100%-cpu"><a id="diagnosing_system_probs__section_E70C332303A242BEAE9D2C0A2EE70E0A" class="no-quick-link"></a>Java applications on 64-bit platforms hang or use 100% CPU</h2>
<p>If your Java applications suddenly start to use 100% CPU, you may be experiencing the leap second bug. This bug is found in the Linux kernel and can severely affect Java programs. In particular, you may notice that method invocations using <code>Thread.sleep(n)</code> where <code>n</code> is a small number will actually sleep for much longer period of time than defined by the method. To verify that you are experiencing this bug, check the host&rsquo;s <code>dmesg</code> output for the following message:</p>
<pre class="highlight plaintext"><code>[10703552.860274] Clock: inserting leap second 23:59:60 UTC
</code></pre>
<p>To fix this problem, issue the following commands on your affected Linux machines:</p>
<pre class="highlight plaintext"><code>prompt&gt; /etc/init.d/ntp stop
prompt&gt; date -s "$(date)"
</code></pre>
<p>See the following web site for more information:</p>
<p><a href="http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/">http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/</a></p>
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