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Managing Heap and Off-heap Memory |
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<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>
</ul>
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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>
</ul>
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<li>
<a href="/docs/guide/15/managing/security/ssl_example.html">SSL Sample Implementation</a>
</li>
</ul>
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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>
<li>
<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>
</li>
<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>
<li>
<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>
</li>
<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>
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Apache Geode
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<h1 class="title-container" >
Managing Heap and Off-heap Memory
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<p>By default, Apache Geode uses the JVM heap. Apache Geode also offers an option to store data off heap. This section describes how to manage heap and off-heap memory to best support your application.</p>
<h2 id="tuning-the-jvm&#39;s-garbage-collection-parameters"><a id="section_590DA955523246ED980E4E351FF81F71" class="no-quick-link"></a>Tuning the JVM&rsquo;s Garbage Collection Parameters</h2>
<p>Because Apache Geode is specifically designed to manipulate data held in memory, you can optimize your application&rsquo;s performance by tuning the way Apache Geode uses the JVM heap.</p>
<p>See your JVM documentation for all JVM-specific settings that can be used to improve garbage collection (GC) response. At a minimum, do the following:</p>
<ol>
<li> Set the initial and maximum heap switches, <code>-Xms</code> and <code>-Xmx</code>, to the same values. The <code>gfsh start server</code> options <code>--initial-heap</code> and <code>--max-heap</code> accomplish the same purpose, with the added value of providing resource manager defaults such as eviction threshold and critical threshold.</li>
<li> Configure your JVM for concurrent mark-sweep (CMS) garbage collection.</li>
<li> If your JVM allows, configure it to initiate CMS collection when heap use is at least 10% lower than your setting for the resource manager <code>eviction-heap-percentage</code>. You want the collector to be working when Geode is evicting or the evictions will not result in more free memory. For example, if the <code>eviction-heap-percentage</code> is set to 65, set your garbage collection to start when the heap use is no higher than 55%.</li>
</ol>
<table><thead>
<tr>
<th>JVM</th>
<th>CMS switch flag</th>
<th>CMS initiation (begin at heap % N)</th>
</tr>
</thead><tbody>
<tr>
<td>Sun HotSpot</td>
<td><code>‑XX:+UseConcMarkSweepGC</code></td>
<td><code>‑XX:CMSInitiatingOccupancyFraction=N</code></td>
</tr>
<tr>
<td>JRockit</td>
<td><code>-Xgc:gencon</code></td>
<td><code>-XXgcTrigger:N</code></td>
</tr>
<tr>
<td>IBM</td>
<td><code>-Xgcpolicy:gencon</code></td>
<td>N/A</td>
</tr>
</tbody></table>
<p>For the <code>gfsh start server</code> command, pass these settings with the <code>--J</code> switch, for example: <code>‑‑J=‑XX:+UseConcMarkSweepGC</code>.</p>
<p>The following is an example of setting JVM for an application:</p>
<pre class="highlight plaintext"><code>$ java app.MyApplication -Xms=30m -Xmx=30m -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=60
</code></pre>
<p><strong>Note:</strong> Do not use the <code>-XX:+UseCompressedStrings</code> and <code>-XX:+UseStringCache</code> JVM configuration properties when starting up servers. These JVM options can cause issues with data corruption and compatibility.</p>
<p>Or, using <code>gfsh</code>:</p>
<pre class="highlight plaintext"><code>$ gfsh start server --name=app.MyApplication --initial-heap=30m --max-heap=30m \
--J=-XX:+UseConcMarkSweepGC --J=-XX:CMSInitiatingOccupancyFraction=60
</code></pre>
<h2 id="using-the-geode-resource-manager"><a id="how_the_resource_manager_works" class="no-quick-link"></a>Using the Geode Resource Manager</h2>
<p>The Geode resource manager works with your JVM&rsquo;s tenured garbage collector to control heap use and protect your member from hangs and crashes due to memory overload.</p>
<p><a id="how_the_resource_manager_works__section_53E80B61991447A2915E8A754383B32D"></a>
The Geode resource manager prevents the cache from consuming too much memory by evicting old data. If the garbage collector is unable to keep up, the resource manager refuses additions to the cache until the collector has freed an adequate amount of memory.</p>
<p>The resource manager has two threshold settings, each expressed as a percentage of the total tenured heap. Both are disabled by default.</p>
<ol>
<li><p><strong>Eviction Threshold</strong>. Above this, the manager orders evictions for all regions with <code>eviction-attributes</code> set to <code>lru-heap-percentage</code>. This prompts dedicated background evictions, independent of any application threads and it also tells all application threads adding data to the regions to evict at least as much data as they add. The JVM garbage collector removes the evicted data, reducing heap use. The evictions continue until the manager determines that heap use is again below the eviction threshold.</p>
<p>The resource manager enforces eviction thresholds only on regions whose LRU eviction policies are based on heap percentage. Regions whose eviction policies based on entry count or memory size use other mechanisms to manage evictions. See <a href="/docs/guide/15/developing/eviction/chapter_overview.html">Eviction</a> for more detail regarding eviction policies.</p></li>
<li><p><strong>Critical Threshold</strong>. Above this, all activity that might add data to the cache is refused. This threshold is set above the eviction threshold and is intended to allow the eviction and GC work to catch up. This JVM, all other JVMs in the distributed system, and all clients to the system receive <code>LowMemoryException</code> for operations that would add to this critical member&rsquo;s heap consumption. Activities that fetch or reduce data are allowed. For a list of refused operations, see the Javadocs for the <code>ResourceManager</code> method <code>setCriticalHeapPercentage</code>.</p>
<p>Critical threshold is enforced on all regions, regardless of LRU eviction policy, though it can be set to zero to disable its effect.</p></li>
</ol>
<p><img src="../../images/DataManagement-9.png" id="how_the_resource_manager_works__image_C3568D47EE1B4F2C9F0742AE9C291BF1" class="image" /></p>
<p>When heap use passes the eviction threshold in either direction, the manager logs an info-level message.</p>
<p>When heap use exceeds the critical threshold, the manager logs an error-level message. Avoid exceeding the critical threshold. Once identified as critical, the Geode member becomes a read-only member that refuses cache updates for all of its regions, including incoming distributed updates.</p>
<p>For more information, see <code>org.apache.geode.cache.control.ResourceManager</code> in the online API documentation.</p>
<h2 id="how-background-eviction-is-performed"><a id="how_the_resource_manager_works__section_EA5E52E65923486488A71E3E6F0DE9DA" class="no-quick-link"></a>How Background Eviction Is Performed</h2>
<p>When the manager kicks off evictions:</p>
<ol>
<li><p>From all regions in the local cache that are configured for heap LRU eviction, the background eviction manager creates a randomized list containing one entry for each partitioned region bucket (primary or secondary) and one entry for each non-partitioned region. So each partitioned region bucket is treated the same as a single, non-partitioned region.</p></li>
<li><p>The background eviction manager starts four evictor threads for each processor on the local machine. The manager passes each thread its share of the bucket/region list. The manager divides the bucket/region list as evenly as possible by count, and not by memory consumption.</p></li>
<li><p>Each thread iterates round-robin over its bucket/region list, evicting one LRU entry per bucket/region until the resource manager sends a signal to stop evicting.</p></li>
</ol>
<p>See also <a href="/docs/guide/15/reference/topics/memory_requirements_for_cache_data.html#calculating_memory_requirements">Memory Requirements for Cached Data</a>.</p>
<h2 id="controlling-heap-use-with-the-resource-manager"><a id="configuring_resource_manager_controlling_heap_use" class="no-quick-link"></a>Controlling Heap Use with the Resource Manager</h2>
<p>Resource manager behavior is closely tied to the triggering of Garbage Collection (GC) activities, the use of concurrent garbage collectors in the JVM, and the number of parallel GC threads used for concurrency.</p>
<p><a id="configuring_resource_manager__section_B47A78E7BA0048C89FBBDB7441C308BE"></a>
The recommendations provided here for using the manager assume you have a solid understanding of your Java VM&rsquo;s heap management and garbage collection service.</p>
<p>The resource manager is available for use in any Apache Geode member, but you may not want to activate it everywhere. For some members it might be better to occasionally restart after a hang or OME crash than to evict data and/or refuse distributed caching activities. Also, members that do not risk running past their memory limits would not benefit from the overhead the resource manager consumes. Cache servers are often configured to use the manager because they generally host more data and have more data activity than other members, requiring greater responsiveness in data cleanup and collection.</p>
<p>For the members where you want to activate the resource manager:</p>
<ol>
<li><p>Configure Geode for heap LRU management.</p></li>
<li><p>Set the JVM GC tuning parameters to handle heap and garbage collection in conjunction with the Geode manager.</p></li>
<li><p>Monitor and tune heap LRU configurations and your GC configurations.</p></li>
<li><p>Before going into production, run your system tests with application behavior and data loads that approximate your target systems so you can tune as well as possible for production needs.</p></li>
<li><p>In production, keep monitoring and tuning to meet changing needs.</p></li>
</ol>
<h2 id="configure-geode-for-heap-lru-management"><a id="configuring_resource_manager__section_4949882892DA46F6BB8588FA97037F45" class="no-quick-link"></a>Configure Geode for Heap LRU Management</h2>
<p>The configuration terms used here are <code>cache.xml</code> elements and attributes, but you can also configure through <code>gfsh</code> and the <code>org.apache.geode.cache.control.ResourceManager</code> and <code>Region</code> APIs.</p>
<ol>
<li><p>When starting up your server, set <code>initial-heap</code> and <code>max-heap</code> to the same value.</p></li>
<li><p>Set the <code>resource-manager</code> <code>critical-heap-percentage</code> threshold. This should be as as close to 100 as possible while still low enough so the manager&rsquo;s response can prevent the member from hanging or getting <code>OutOfMemoryError</code>. The threshold is zero (no threshold) by default.</p>
<p><strong>Note:</strong> When you set this threshold, it also enables a query monitoring feature that prevents most out-of-memory exceptions when executing queries or creating indexes. See <a href="/docs/guide/15/developing/querying_basics/monitor_queries_for_low_memory.html#topic_685CED6DE7D0449DB8816E8ABC1A6E6F">Monitoring Queries for Low Memory</a>.</p></li>
<li><p>Set the <code>resource-manager</code> <code>eviction-heap-percentage</code> threshold to a value lower than the critical threshold. This should be as high as possible while still low enough to prevent your member from reaching the critical threshold. The threshold is zero (no threshold) by default.</p></li>
<li><p>Decide which regions will participate in heap eviction and set their <code>eviction-attributes</code> to <code>lru-heap-percentage</code>. See <a href="/docs/guide/15/developing/eviction/chapter_overview.html">Eviction</a>. The regions you configure for eviction should have enough data activity for the evictions to be useful and should contain data your application can afford to delete or offload to disk.</p></li>
</ol>
<p><a id="configuring_resource_manager__section_5D88064B75C643B0849BBD4345A6671B"></a></p>
<p>gfsh example:</p>
<pre class="highlight plaintext"><code>gfsh&gt;start server --name=server1 --initial-heap=30m --max-heap=30m \
--critical-heap-percentage=80 --eviction-heap-percentage=60
</code></pre>
<p>cache.xml example:</p>
<pre class="highlight plaintext"><code>&lt;cache&gt;
&lt;region refid="REPLICATE_HEAP_LRU" /&gt;
...
&lt;resource-manager critical-heap-percentage="80" eviction-heap-percentage="60"/&gt;
&lt;/cache&gt;
</code></pre>
<p><strong>Note:</strong> The <code>resource-manager</code> specification must appear after the region declarations in your cache.xml file.</p>
<h2 id="set-the-jvm-gc-tuning-parameters"><a id="set_jvm_gc_tuning_params" class="no-quick-link"></a>Set the JVM GC Tuning Parameters</h2>
<p>If your JVM allows, configure it to initiate concurrent mark-sweep (CMS) garbage collection when heap use is at least 10% lower than your setting for the resource manager <code>eviction-heap-percentage</code>. You want the collector to be working when Geode is evicting or the evictions will not result in more free memory. For example, if the <code>eviction-heap-percentage</code> is set to 65, set your garbage collection to start when the heap use is no higher than 55%.</p>
<h2 id="monitor-and-tune-heap-lru-configurations"><a id="configuring_resource_manager__section_DE1CC494C2B547B083AA00821250972A" class="no-quick-link"></a>Monitor and Tune Heap LRU Configurations</h2>
<p>In tuning the resource manager, your central focus should be keeping the member below the critical threshold. The critical threshold is provided to avoid member hangs and crashes, but because of its exception-throwing behavior for distributed updates, the time spent in critical negatively impacts the entire distributed system. To stay below critical, tune so that the Geode eviction and the JVM&rsquo;s GC respond adequately when the eviction threshold is reached.</p>
<p>Use the statistics provided by your JVM to make sure your memory and GC settings are sufficient for your needs.</p>
<p>The Geode <code>ResourceManagerStats</code> provide information about memory use and the manager thresholds and eviction activities.</p>
<p>If your application spikes above the critical threshold on a regular basis, try lowering the eviction threshold. If the application never goes near critical, you might raise the eviction threshold to gain more usable memory without the overhead of unneeded evictions or GC cycles.</p>
<p>The settings that will work well for your system depend on a number of factors, including these:</p>
<ul>
<li><p>The size of the data objects you store in the cache
Very large data objects can be evicted and garbage collected relatively quickly. The same amount of space in use by many small objects takes more processing effort to clear and might require lower thresholds to allow eviction and GC activities to keep up.</p></li>
<li><p>Application behavior
Applications that quickly put a lot of data into the cache can more easily overrun the eviction and GC capabilities. Applications that operate more slowly may be more easily offset by eviction and GC efforts, possibly allowing you to set your thresholds higher than in the more volatile system.</p></li>
<li><p>Your choice of JVM
Each JVM has its own GC behavior, which affects how efficiently the collector can operate, how quickly it kicks in when needed, and other factors.</p></li>
</ul>
<h2 id="resource-manager-example-configurations"><a id="resource_manager_example_configurations" class="no-quick-link"></a>Resource Manager Example Configurations</h2>
<p><a id="resource_manager_example_configurations__section_B50C552B114D47F3A63FC906EB282024"></a>
These examples set the critical threshold to 85 percent of the tenured heap and the eviction threshold to 75 percent. The region <code>bigDataStore</code> is configured to participate in the resource manager&rsquo;s eviction activities.</p>
<ul>
<li><p>gfsh Example:</p>
<pre class="highlight plaintext"><code>gfsh&gt;start server --name=server1 --initial-heap=30m --max-heap=30m \
--critical-heap-percentage=85 --eviction-heap-percentage=75
</code></pre>
<pre class="highlight plaintext"><code>gfsh&gt;create region --name=bigDataStore --type=PARTITION_HEAP_LRU
</code></pre></li>
<li><p>XML:</p>
<pre class="highlight plaintext"><code>&lt;cache&gt;
&lt;region name="bigDataStore" refid="PARTITION_HEAP_LRU"/&gt;
...
&lt;resource-manager critical-heap-percentage="85" eviction-heap-percentage="75"/&gt;
&lt;/cache&gt;
</code></pre>
<p><strong>Note:</strong> The <code>resource-manager</code> specification must appear after the region declarations in your cache.xml file.</p></li>
<li><p>Java:</p>
<pre class="highlight plaintext"><code>Cache cache = CacheFactory.create();
ResourceManager rm = cache.getResourceManager();
rm.setCriticalHeapPercentage(85);
rm.setEvictionHeapPercentage(75);
RegionFactory rf =
cache.createRegionFactory(RegionShortcut.PARTITION_HEAP_LRU);
Region region = rf.create("bigDataStore");
</code></pre></li>
</ul>
<h2 id="use-case-for-the-example-code"><a id="resource_manager_example_configurations__section_95497FDF114A4DC8AC5D899E05E324E5" class="no-quick-link"></a>Use Case for the Example Code</h2>
<p>This is one possible scenario for the configuration used in the examples:</p>
<ul>
<li> A 64-bit Java VM with 8 Gb of heap space on a 4 CPU system running Linux.</li>
<li> The data region bigDataStore has approximately 2-3 million small values with average entry size of 512 bytes. So approximately 4-6 Gb of the heap is for region storage.</li>
<li> The member hosting the region also runs an application that may take up to 1 Gb of the heap.</li>
<li> The application must never run out of heap space and has been crafted such that data loss in the region is acceptable if the heap space becomes limited due to application issues, so the default <code>lru-heap-percentage</code> action destroy is suitable.</li>
<li> The application&rsquo;s service guarantee makes it very intolerant of <code>OutOfMemoryException</code> errors. Testing has shown that leaving 15% head room above the critical threshold when adding data to the region gives 99.5% uptime with no <code>OutOfMemoryException</code> errors, when configured with the CMS garbage collector using <code>-XX:CMSInitiatingOccupancyFraction=70</code>.</li>
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