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System Failure and Recovery |
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<a href="/docs/guide/115/managing/disk_storage/optimize_availability_and_performance.html">
Optimizing a System with Disk Stores</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/starting_system_with_disk_stores.html">Start Up and Shut Down with Disk Stores</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/disk_storage/managing_disk_stores.html">Disk Store Management</a>
<ul>
<li>
<a href="/docs/guide/115/managing/disk_storage/managing_disk_stores_cmds.html">Disk Store Management Commands and Operations</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/validating_disk_store.html">Validating a Disk Store</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/compacting_disk_stores.html">Running Compaction on Disk Store Log Files</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/keeping_offline_disk_store_in_sync.html">Keeping a Disk Store Synchronized with the Cache</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/disk_free_space_monitoring.html">Configuring Disk Free Space Monitoring
</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/handling_missing_disk_stores.html">Handling Missing Disk Stores</a>
</li>
<li>
<a href="/docs/guide/115/managing/disk_storage/managing_disk_buffer_flushes.html">Altering When Buffers Are Flushed to Disk</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/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/115/managing/cache_snapshots/chapter_overview.html">Cache and Region Snapshots</a>
<ul>
<li>
<a href="/docs/guide/115/managing/cache_snapshots/using_cache_and_region_snapshots.html">Usage and Performance Notes</a>
</li>
<li>
<a href="/docs/guide/115/managing/cache_snapshots/exporting_a_snapshot.html">Exporting Cache and Region Snapshots</a>
</li>
<li>
<a href="/docs/guide/115/managing/cache_snapshots/importing_a_snapshot.html">Importing Cache and Region Snapshots</a>
</li>
<li>
<a href="/docs/guide/115/managing/cache_snapshots/filtering_snapshot_entries.html">Filtering Entries During Import or Export</a>
</li>
<li>
<a href="/docs/guide/115/managing/cache_snapshots/read_snapshots_programmatically.html">Reading Snapshots Programmatically</a>
</li>
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<li class="has_submenu">
<a href="/docs/guide/115/managing/region_compression.html">Region Compression</a>
<ul>
<li>
<a href="/docs/guide/115/managing/region_compression.html#concept_a2c_rhc_gl">Guidelines on Using Compression</a>
</li>
<li>
<a href="/docs/guide/115/managing/region_compression.html#topic_inm_whc_gl">How to Enable Compression in a Region</a>
</li>
<li>
<a href="/docs/guide/115/managing/region_compression.html#topic_hqf_syj_g4">Working with Compressors
</a>
</li>
<li>
<a href="/docs/guide/115/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/115/managing/network_partitioning/chapter_overview.html">Network Partitioning</a>
<ul>
<li>
<a href="/docs/guide/115/managing/network_partitioning/how_network_partitioning_management_works.html">How Network Partitioning Management Works</a>
</li>
<li>
<a href="/docs/guide/115/managing/network_partitioning/failure_detection.html">Failure Detection and Membership Views</a>
</li>
<li>
<a href="/docs/guide/115/managing/network_partitioning/membership_coordinators_lead_members_and_weighting.html">Membership Coordinators, Lead Members and Member Weighting</a>
</li>
<li>
<a href="/docs/guide/115/managing/network_partitioning/network_partitioning_scenarios.html">Network Partitioning Scenarios</a>
</li>
<li>
<a href="/docs/guide/115/managing/network_partitioning/handling_network_partitioning.html">Configure Apache Geode to Handle Network Partitioning</a>
</li>
<li>
<a href="/docs/guide/115/managing/network_partitioning/preventing_network_partitions.html">Preventing Network Partitions</a>
</li>
</ul>
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<li class="has_submenu">
<a href="/docs/guide/115/managing/security/chapter_overview.html">Security</a>
<ul>
<li>
<a href="/docs/guide/115/managing/security/implementing_security.html">Security Implementation Introduction and Overview</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/security/security_audit_overview.html">Security Detail Considerations</a>
<ul>
<li>
<a href="/docs/guide/115/managing/security/security-audit.html">External Interfaces, Ports, and Services</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/security-audit.html#topic_263072624B8D4CDBAD18B82E07AA44B6">Resources That Must Be Protected</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/security-audit.html#topic_5B6DF783A14241399DC25C6EE8D0048A">Log File Locations</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/properties_file.html">Where to Place Security Configuration Settings</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/security/enable_security.html">Enable Security with Property Definitions</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/security/authentication_overview.html">Authentication</a>
<ul>
<li>
<a href="/docs/guide/115/managing/security/implementing_authentication.html">Implementing Authentication</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/authentication_examples.html">Authentication Example</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/implementing_authentication_expiry.html">Implementing Authentication Expiry</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/security/authorization_overview.html">Authorization</a>
<ul>
<li>
<a href="/docs/guide/115/managing/security/implementing_authorization.html">Implementing Authorization</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/method_invocation_authorizers.html">Method Invocation Authorizers</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/authorization_example.html">Authorization Examples</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/security/post_processing.html">Post Processing of Region Data</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/security/ssl_overview.html">SSL</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/managing/security/implementing_ssl.html">Configuring SSL</a>
<ul>
<li>
<a href="/docs/guide/115/managing/security/implementing_ssl.html#ssl_configurable_components">SSL-Configurable Components</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/implementing_ssl.html#ssl_configuration_properties">SSL Configuration Properties</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/implementing_ssl.html#ssl_property_reference_tables">SSL Property Reference Tables</a>
</li>
<li>
<a href="/docs/guide/115/managing/security/implementing_ssl.html#implementing_ssl__sec_ssl_impl_proc">Procedure</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/security/ssl_example.html">SSL Sample Implementation</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/monitor_tune/chapter_overview.html">Performance Tuning and Configuration</a>
<ul>
<li>
<a href="/docs/guide/115/managing/monitor_tune/disabling_tcp_syn_cookies.html">Disable TCP SYN Cookies</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/performance_on_vsphere.html">Improving Performance on vSphere</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/monitor_tune/performance_controls.html">Performance Controls</a>
<ul>
<li>
<a href="/docs/guide/115/managing/monitor_tune/performance_controls_data_serialization.html">Data Serialization</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/performance_controls_setting_cache_timeouts.html">Setting Cache Timeouts</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/performance_controls_controlling_socket_use.html">Controlling Socket Use</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/performance_controls_managing_slow_receivers.html">Management of Slow Receivers</a>
</li>
<li>
<a href="/docs/guide/115/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/115/managing/monitor_tune/system_member_performance.html">System Member Performance</a>
<ul>
<li>
<a href="/docs/guide/115/managing/monitor_tune/system_member_performance_distributed_system_member.html">Member Properties</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/system_member_performance_jvm_mem_settings.html">JVM Memory Settings and System Performance</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/system_member_performance_garbage.html">Garbage Collection and System Performance</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/monitor_tune/slow_receivers.html">Slow Receivers with TCP/IP</a>
<ul>
<li>
<a href="/docs/guide/115/managing/monitor_tune/slow_receivers_preventing_problems.html">Preventing Slow Receivers</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/slow_receivers_managing.html">Managing Slow Receivers</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/slow_messages.html">Slow distributed-ack Messages</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/monitor_tune/socket_communication.html">Socket Communication</a>
<ul>
<li>
<a href="/docs/guide/115/managing/monitor_tune/socket_communication_setting_socket_buffer_sizes.html">Setting Socket Buffer Sizes</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/socket_communication_ephemeral_tcp_port_limits.html">Ephemeral TCP Port Limits</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/socket_communication_have_enough_sockets.html">Making Sure You Have Enough Sockets</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/socket_tcp_keepalive.html">TCP/IP KeepAlive Configuration</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/socket_communication_tcpip_p2p_handshake_timeouts.html">TCP/IP Peer-to-Peer Handshake Timeouts</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/sockets_and_gateways.html">Configuring Sockets in Multi-Site (WAN) Deployments</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/udp_communication.html">UDP Communication</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/monitor_tune/multicast_communication.html">Multicast Communication</a>
<ul>
<li>
<a href="/docs/guide/115/managing/monitor_tune/multicast_communication_provisioning_bandwidth.html">Provisioning Bandwidth for Multicast</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/multicast_communication_testing_multicast_speed_limits.html">Testing Multicast Speed Limits</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/multicast_communication_configuring_speed_limits.html">Configuring Multicast Speed Limits</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/multicast_communication_runtime_considerations.html">Run-time Considerations for Multicast</a>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/multicast_communication_troubleshooting.html">Troubleshooting the Multicast Tuning Process</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/monitor_tune/cache_consistency.html">Maintaining Cache Consistency</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/logging/logging.html">Logging</a>
<ul>
<li>
<a href="/docs/guide/115/managing/logging/how_logging_works.html">How Geode Logging Works</a>
</li>
<li>
<a href="/docs/guide/115/managing/logging/logging_categories.html">Understanding Log Messages and Their Categories</a>
</li>
<li>
<a href="/docs/guide/115/managing/logging/logging_whats_next.html">Naming, Searching, and Creating Log Files</a>
</li>
<li>
<a href="/docs/guide/115/managing/logging/setting_up_logging.html">Set Up Logging</a>
</li>
<li>
<a href="/docs/guide/115/managing/logging/configuring_log4j2.html">Advanced Users—Configuring Log4j 2 for Geode</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/statistics/chapter_overview.html">Statistics</a>
<ul>
<li>
<a href="/docs/guide/115/managing/statistics/how_statistics_work.html">How Statistics Work</a>
</li>
<li>
<a href="/docs/guide/115/managing/statistics/transient_region_and_entry_statistics.html">Transient Region and Entry Statistics</a>
</li>
<li>
<a href="/docs/guide/115/managing/statistics/application_defined_statistics.html">Application-Defined and Custom Statistics</a>
</li>
<li>
<a href="/docs/guide/115/managing/statistics/setting_up_statistics.html">Configuring and Using Statistics</a>
</li>
<li>
<a href="/docs/guide/115/managing/statistics/viewing_statistics.html">Viewing Archived Statistics</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/troubleshooting/chapter_overview.html">Troubleshooting and System Recovery</a>
<ul>
<li>
<a href="/docs/guide/115/managing/troubleshooting/producing_troubleshooting_artifacts.html">Producing Artifacts for Troubleshooting</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/diagnosing_system_probs.html">Diagnosing System Problems</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/system_failure_and_recovery.html">System Failure and Recovery</a>
</li>
<li>
<a href="/docs/guide/115/managing/member-reconnect.html">Handling Forced Cache Disconnection Using Autoreconnect</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/managing/troubleshooting/recovering_from_app_crashes.html">Recovering from Application and Cache Server Crashes</a>
<ul>
<li>
<a href="/docs/guide/115/managing/troubleshooting/recovering_from_p2p_crashes.html">Recovering from Crashes with a Peer-to-Peer Configuration</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/recovering_from_cs_crashes.html">Recovering from Crashes with a Client/Server Configuration</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/recovering_from_machine_crashes.html">Recovering from Machine Crashes</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/recovering_conflicting_data_exceptions.html">Recovering from ConfictingPersistentDataExceptions</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/prevent_and_recover_disk_full_errors.html">Preventing and Recovering from Disk Full Errors</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/recovering_from_network_outages.html">Understanding and Recovering from Network Outages</a>
</li>
<li>
<a href="/docs/guide/115/managing/troubleshooting/log_messages_and_solutions.html">Log Messages and Solutions</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/book_intro.html">Developing with Apache Geode</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/developing/region_options/chapter_overview.html">
Region Data Storage and Distribution</a>
<ul>
<li>
<a href="/docs/guide/115/developing/region_options/storage_distribution_options.html">
Storage and Distribution Options</a>
</li>
<li>
<a href="/docs/guide/115/developing/region_options/region_types.html">Region Types</a>
</li>
<li>
<a href="/docs/guide/115/developing/region_options/data_hosts_and_accessors.html">Region Data Stores and Data Accessors</a>
</li>
<li>
<a href="/docs/guide/115/developing/region_options/dynamic_region_creation.html">Creating Regions Dynamically</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/partitioned_regions/chapter_overview.html">Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/how_partitioning_works.html">Understanding Partitioning</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/managing_partitioned_regions.html">Configuring Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/partitioned_regions/overview_custom_partitioning_and_data_colocation.html">Custom-Partitioning and Colocating Data</a>
<ul>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/custom_partitioning_and_data_colocation.html">Understanding Custom Partitioning and Data Colocation</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/standard_custom_partitioning.html">Standard Custom Partitioning</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/fixed_custom_partitioning.html">Fixed Custom Partitioning</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/partitioned_regions/overview_how_pr_ha_works.html">Configuring High Availability for Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/how_pr_ha_works.html">Understanding High Availability for Partitioned Regions</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/partitioned_regions/configuring_ha_for_pr.html">Configure High Availability for a Partitioned Region</a>
<ul>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/set_pr_redundancy.html">Set the Number of Redundant Copies</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/set_redundancy_zones.html">Configure Redundancy Zones for Members</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/set_enforce_unique_host.html">Set Enforce Unique Host</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/set_crash_redundancy_recovery.html">Configure Member Crash Redundancy Recovery for a Partitioned Region</a>
</li>
<li>
<a href="/docs/guide/115/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/115/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/115/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/115/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/115/developing/partitioned_regions/rebalancing_pr_data.html">Rebalancing Partitioned Region Data</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/checking_region_redundancy.html">Checking Redundancy in Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/115/developing/partitioned_regions/restoring_region_redundancy.html">Restoring Redundancy in Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/distributed_regions/chapter_overview.html">
Distributed and Replicated Regions</a>
<ul>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_distribution_works.html">How Distribution Works</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/choosing_level_of_dist.html">Options for Region Distribution</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_replication_works.html">How Replication and Preloading Work</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/managing_distributed_regions.html">Configure Distributed, Replicated, and Preloaded Regions</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/locking_in_global_regions.html">Locking in Global Regions</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/distributed_regions/region_entry_versions.html">Consistency for Region Updates</a>
<ul>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_region_versioning_works.html#topic_7A4B6C6169BD4B1ABD356294F744D236">
Consistency Checking by Region Type</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_region_versioning_works.html#topic_B64891585E7F4358A633C792F10FA23E">Configuring Consistency Checking</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_region_versioning_works.html#topic_0BDACA590B2C4974AC9C450397FE70B2">Overhead for Consistency Checks</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_region_versioning_works.html#topic_C5B74CCDD909403C815639339AA03758">How Consistency Checking Works for Replicated Regions</a>
</li>
<li>
<a href="/docs/guide/115/developing/distributed_regions/how_region_versioning_works.html#topic_321B05044B6641FCAEFABBF5066BD399">How Destroy and Clear Operations Are Resolved</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/general_region_data_management.html">General Region Data Management</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/developing/storing_data_on_disk/chapter_overview.html">Persistence and Overflow</a>
<ul>
<li>
<a href="/docs/guide/115/developing/storing_data_on_disk/how_persist_overflow_work.html">How Persistence and Overflow Work</a>
</li>
<li>
<a href="/docs/guide/115/developing/storing_data_on_disk/storing_data_on_disk.html">Configure Region Persistence and Overflow</a>
</li>
<li>
<a href="/docs/guide/115/developing/storing_data_on_disk/overflow_config_examples.html">Overflow Configuration Examples</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/eviction/chapter_overview.html">Eviction</a>
<ul>
<li>
<a href="/docs/guide/115/developing/eviction/how_eviction_works.html">How Eviction Works</a>
</li>
<li>
<a href="/docs/guide/115/developing/eviction/configuring_data_eviction.html">Configure Data Eviction</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/expiration/chapter_overview.html">Expiration</a>
<ul>
<li>
<a href="/docs/guide/115/developing/expiration/how_expiration_works.html">How Expiration Works</a>
</li>
<li>
<a href="/docs/guide/115/developing/expiration/configuring_data_expiration.html">Configure Data Expiration</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/outside_data_sources/sync_outside_data.html">Keeping the Cache in Sync with Outside Data Sources</a>
<ul>
<li>
<a href="/docs/guide/115/developing/outside_data_sources/chapter_overview.html">Overview of Outside Data Sources</a>
</li>
<li>
<a href="/docs/guide/115/developing/outside_data_sources/configuring_db_connections_using_JNDI.html">Configuring Database Connections Using JNDI</a>
</li>
<li>
<a href="/docs/guide/115/developing/outside_data_sources/how_data_loaders_work.html">How Data Loaders Work</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/data_serialization/chapter_overview.html">Data Serialization</a>
<ul>
<li>
<a href="/docs/guide/115/developing/data_serialization/data_serialization_options.html">Overview of Data Serialization</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/data_serialization/gemfire_pdx_serialization.html">Geode PDX Serialization</a>
<ul>
<li>
<a href="/docs/guide/115/developing/data_serialization/PDX_Serialization_Features.html">Geode PDX Serialization Features</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/data_serialization/auto_serialization.html">Using Automatic Reflection-Based PDX Serialization</a>
<ul>
<li>
<a href="/docs/guide/115/developing/data_serialization/autoserialization_with_class_pattern_strings.html">Customizing Serialization with Class Pattern Strings</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/extending_the_autoserializer.html">Extending the ReflectionBasedAutoSerializer</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/use_pdx_serializer.html">Serializing Your Domain Object with a PdxSerializer</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/use_pdx_serializable.html">Implementing PdxSerializable in Your Domain Object</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/program_application_for_pdx.html">Programming Your Application to Use PdxInstances</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/jsonformatter_pdxinstances.html">Adding JSON Documents to the Geode Cache</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/using_PdxInstanceFactory.html">Using PdxInstanceFactory to Create PdxInstances</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/persist_pdx_metadata_to_disk.html">Persisting PDX Metadata to Disk</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/data_serialization/gemfire_data_serialization.html">Geode Data Serialization (DataSerializable and DataSerializer)</a>
</li>
<li>
<a href="/docs/guide/115/developing/data_serialization/java_serialization.html">Standard Java Serialization</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/events/chapter_overview.html">Events and Event Handling</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/developing/events/how_events_work.html">How Events Work</a>
<ul>
<li>
<a href="/docs/guide/115/developing/events/how_cache_events_work.html">Peer-to-Peer Event Distribution</a>
</li>
<li>
<a href="/docs/guide/115/developing/events/how_client_server_distribution_works.html">Client-to-Server Event Distribution</a>
</li>
<li>
<a href="/docs/guide/115/developing/events/how_multisite_distribution_works.html">
Multi-Site (WAN) Event Distribution</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/events/event_handler_overview.html">Implementing Geode Event Handlers</a>
<ul>
<li>
<a href="/docs/guide/115/developing/events/implementing_cache_event_handlers.html">Implementing Cache Event Handlers</a>
</li>
<li>
<a href="/docs/guide/115/developing/events/implementing_write_behind_event_handler.html">Implementing an AsyncEventListener for Write-Behind Cache Event Handling</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/events/cache_event_handler_examples.html">Cache Event Handler Examples</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/developing/events/configure_p2p_event_messaging.html">Configuring Peer-to-Peer Event Messaging</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/events/configure_client_server_event_messaging.html">Configuring Client/Server Event Messaging
</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/developing/events/configuring_highly_available_servers.html">Configuring Highly Available Servers</a>
<ul>
<li>
<a href="/docs/guide/115/developing/events/ha_event_messaging_whats_next.html">Highly Available Client/Server Event Messaging</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/developing/events/implementing_durable_client_server_messaging.html">Implementing Durable Client/Server Messaging</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/events/tune_client_server_event_messaging.html">Tuning Client/Server Event Messaging</a>
<ul>
<li>
<a href="/docs/guide/115/developing/events/conflate_server_subscription_queue.html">Conflate the Server Subscription Queue</a>
</li>
<li>
<a href="/docs/guide/115/developing/events/limit_server_subscription_queue_size.html">Limit the Server's Subscription Queue Memory Use
</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/events/configure_multisite_event_messaging.html">Configuring Multi-Site (WAN) Event Queues</a>
<ul>
<li>
<a href="/docs/guide/115/developing/events/configuring_highly_available_gateway_queues.html">Persisting an Event Queue</a>
</li>
<li>
<a href="/docs/guide/115/developing/events/configuring_gateway_concurrency_levels.html">Configuring Dispatcher Threads and Order Policy for Event Distribution</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/delta_propagation/chapter_overview.html">
Delta Propagation</a>
<ul>
<li>
<a href="/docs/guide/115/developing/delta_propagation/how_delta_propagation_works.html">How Delta Propagation Works</a>
</li>
<li>
<a href="/docs/guide/115/developing/delta_propagation/when_to_use_delta_prop.html">When to Avoid Delta Propagation</a>
</li>
<li>
<a href="/docs/guide/115/developing/delta_propagation/delta_propagation_properties.html">Delta Propagation Properties</a>
</li>
<li>
<a href="/docs/guide/115/developing/delta_propagation/implementing_delta_propagation.html">Implementing Delta Propagation</a>
</li>
<li>
<a href="/docs/guide/115/developing/delta_propagation/errors_in_delta_propagation.html">Errors In Delta Propagation</a>
</li>
<li>
<a href="/docs/guide/115/developing/delta_propagation/delta_propagation_example.html">Delta Propagation Example</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/querying_basics/chapter_overview.html">Querying</a>
<ul>
<li>
<a href="/docs/guide/115/getting_started/querying_quick_reference.html">Querying FAQ and Examples</a>
</li>
<li>
<a href="/docs/guide/115/developing/querying_basics/query_basics.html">Querying with OQL</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/querying_basics/running_a_query.html">Writing and Executing a Query in OQL</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/developing/querying_basics/what_is_a_query_string.html">Building a Query String</a>
<ul>
<li>
<a href="/docs/guide/115/developing/query_select/the_import_statement.html">IMPORT Statement</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_select/the_from_clause.html">FROM Clause</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_select/the_where_clause.html">WHERE Clause</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_select/the_select_statement.html">SELECT Statement</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_select/aggregates.html">OQL Aggregate Functions</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/query_additional/query_language_features.html">OQL Syntax and Semantics</a>
<ul>
<li>
<a href="/docs/guide/115/developing/querying_basics/supported_character_sets.html">Supported Character Sets</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/supported_keywords.html">Supported Keywords</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/case_sensitivity.html">Case Sensitivity</a>
</li>
<li>
<a href="/docs/guide/115/developing/querying_basics/comments_in_query_strings.html">Comments in Query Strings</a>
</li>
<li>
<a href="/docs/guide/115/developing/querying_basics/query_grammar_and_reserved_words.html">Query Language Grammar</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/operators.html">Operators</a>
</li>
<li>
<a href="/docs/guide/115/developing/querying_basics/reserved_words.html">Reserved Words</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/literals.html">Supported Literals</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/query_additional/advanced_querying.html">Advanced Querying</a>
<ul>
<li>
<a href="/docs/guide/115/developing/querying_basics/performance_considerations.html">Performance Considerations</a>
</li>
<li>
<a href="/docs/guide/115/developing/querying_basics/monitor_queries_for_low_memory.html">Monitoring Low Memory When Querying</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/query_timeout.html">Timeouts for Long-Running Queries</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/using_query_bind_parameters.html">Using Query Bind Parameters</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/querying-a-specific-member.html">Querying a Specific Member</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/querying_basics/querying_partitioned_regions.html">
Querying Partitioned Regions</a>
<ul>
<li>
<a href="/docs/guide/115/developing/query_additional/order_by_on_partitioned_regions.html">Using ORDER BY on Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/query_on_a_single_node.html">Querying a Partitioned Region on a Single Node</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/partitioned_regions/join_query_partitioned_regions.html">Performing an Equi-Join Query on Partitioned Regions</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/partitioned_region_query_restrictions.html">Partitioned Region Query Restrictions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/developing/query_additional/query_debugging.html">Query Debugging</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/query_index/query_index.html">Working with Indexes</a>
<ul>
<li>
<a href="/docs/guide/115/developing/query_index/indexing_guidelines.html">Tips and Guidelines on Using Indexes</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/creating_an_index.html">Creating, Listing and Removing Indexes</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/creating_key_indexes.html">Creating Key Indexes</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/creating_hash_indexes.html">Creating Hash Indexes</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/creating_map_indexes.html">Creating Indexes on Map Fields ("Map Indexes")</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/create_multiple_indexes.html">Creating Multiple Indexes at Once</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/maintaining_indexes.html">Maintaining Indexes (Synchronously or Asynchronously) and Index Storage</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/query_index_hints.html">Using Query Index Hints</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/indexes_on_single_region_queries.html">Using Indexes on Single Region Queries</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/using_indexes_with_equijoin_queries.html">Using Indexes with Equi-Join Queries</a>
</li>
<li>
<a href="/docs/guide/115/developing/query_index/indexes_with_overflow_regions.html">Using Indexes with Overflow Regions</a>
</li>
<li>
<a href="/docs/guide/115/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/115/developing/query_index/index_samples.html">Index Samples</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/continuous_querying/chapter_overview.html">
Continuous Querying</a>
<ul>
<li>
<a href="/docs/guide/115/developing/continuous_querying/how_continuous_querying_works.html">How Continuous Querying Works</a>
</li>
<li>
<a href="/docs/guide/115/developing/continuous_querying/implementing_continuous_querying.html">Implementing Continuous Querying</a>
</li>
<li>
<a href="/docs/guide/115/developing/continuous_querying/continuous_querying_whats_next.html">Managing Continuous Querying</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/transactions/chapter_overview.html">Transactions</a>
<ul>
<li>
<a href="/docs/guide/115/developing/transactions/transactions_intro.html">Adherence to ACID Promises</a>
</li>
<li>
<a href="/docs/guide/115/developing/transactions/directed_example.html">Code Examples</a>
</li>
<li>
<a href="/docs/guide/115/developing/transactions/design_considerations.html">Design Considerations</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/developing/function_exec/chapter_overview.html">Function Execution</a>
<ul>
<li>
<a href="/docs/guide/115/developing/function_exec/how_function_execution_works.html">How Function Execution Works</a>
</li>
<li>
<a href="/docs/guide/115/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/115/rest_apps/book_intro.html">Developing REST Applications for Apache Geode</a>
<ul>
<li>
<a href="/docs/guide/115/rest_apps/chapter_overview.html">Geode REST API Overview</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/rest_prereqs.html">Prerequisites and Limitations for Writing REST Applications</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/setup_config.html">Setup and Configuration</a>
<ul>
<li><a href="/docs/guide/115/rest_apps/setup_config.html#setup_config_enabling_rest">Enabling the REST API</a></li>
<li><a href="/docs/guide/115/rest_apps/setup_config.html#setup_config_starting_rest">Starting the REST API Service</a></li>
<li><a href="/docs/guide/115/rest_apps/setup_config.html#setup_config_implementing_auth">Implementing Authentication</a></li>
<li><a href="/docs/guide/115/rest_apps/setup_config.html#setup_config_implementing_auth">Programmatic Startup</a></li>
</ul>
</li>
<li>
<a href="/docs/guide/115/rest_apps/using_swagger.html">Using the Swagger UI to Browse REST APIs</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/develop_rest_apps.html">Developing REST Applications</a>
<ul>
<li>
<a href="/docs/guide/115/rest_apps/develop_rest_apps.html#topic_qhs_f25_m4">Working with Regions</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/develop_rest_apps.html#topic_fcn_g25_m4">Working with Queries</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/develop_rest_apps.html#topic_rbc_h25_m4">Working with Functions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/rest_apps/rest_examples.html">Sample REST Applications</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/troubleshooting.html">Troubleshooting and FAQ</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/rest_api_reference.html">Apache Geode REST API Reference</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/rest_regions.html">Region Endpoints</a>
<ul>
<li>
<a href="/docs/guide/115/rest_apps/get_regions.html">GET /geode/v1</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/get_region_data.html">GET /geode/v1/{region}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/get_region_keys.html">GET /geode/v1/{region}/keys</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/get_region_key_data.html">GET /geode/v1/{region}/{key}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/get_region_data_for_multiple_keys.html">GET /geode/v1/{region}/{key1},{key2},...,{keyN}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/head_region_size.html">HEAD /geode/v1/{region}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/post_if_absent_data.html">POST /geode/v1/{region}?key=&lt;key&gt;</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/put_update_data.html">PUT /geode/v1/{region}/{key}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/put_multiple_values_for_keys.html">PUT /geode/v1/{region}/{key1},{key2},...{keyN}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/put_replace_data.html">PUT /geode/v1/{region}/{key}?op=REPLACE</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/put_update_cas_data.html">PUT /geode/v1/{region}/{key}?op=CAS</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/delete_all_data.html">DELETE /geode/v1/{region}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/delete_data_for_key.html">DELETE /geode/v1/{region}/{key}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/delete_data_for_multiple_keys.html">DELETE /geode/v1/{region}/{key1},{key2},...{keyN}</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/rest_queries.html">Query Endpoints</a>
<ul>
<li>
<a href="/docs/guide/115/rest_apps/get_queries.html">GET /geode/v1/queries</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/post_create_query.html">POST /geode/v1/queries?id=&lt;queryId&gt;&amp;q=&lt;OQL-statement&gt;</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/post_execute_query.html">POST /geode/v1/queries/{queryId}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/put_update_query.html">PUT /geode/v1/queries/{queryId}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/delete_named_query.html">DELETE /geode/v1/queries/{queryId}</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/get_execute_adhoc_query.html">GET /geode/v1/queries/adhoc?q=&lt;OQL-statement&gt;</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/rest_functions.html">Function Endpoints</a>
<ul>
<li>
<a href="/docs/guide/115/rest_apps/get_functions.html">GET /geode/v1/functions</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/post_execute_functions.html">POST /geode/v1/functions/{functionId}</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/rest_apps/rest_admin.html">Administrative Endpoints</a>
<ul>
<li>
<a href="/docs/guide/115/rest_apps/ping_service.html">[HEAD | GET] /geode/v1/ping</a>
</li>
<li>
<a href="/docs/guide/115/rest_apps/get_servers.html">GET /geode/v1/servers</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/book_intro.html">Tools and Modules</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/chapter_overview.html">gfsh</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/about_gfsh.html">What You Can Do with gfsh</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/starting_gfsh.html">Starting gfsh</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/configuring_gfsh.html">Configuring the gfsh Environment</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/useful_gfsh_shell_variables.html">Useful gfsh Shell Variables</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/getting_started_gfsh.html">Basic Shell Features and Command-Line Usage</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/json_in_gfsh.html">Specifying JSON within Command-Line Options</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/tour_of_gfsh.html">Tutorial—Performing Common Tasks with gfsh</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/gfsh_quick_reference.html">Quick Reference of gfsh Commands by Functional Area</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_77DA6E3929404EB4AC24230CC7C21493">Basic Geode gfsh Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_EB854534301A477BB01058B3B142AE1D">Configuration Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_C7DB8A800D6244AE8FF3ADDCF139DCE4">Data Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_1B47A0E120124EB6BF08A467EB510412">Deployment Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_1ACC91B493EE446E89EC7DBFBBAE00EA">Disk Store Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_10613D4850F04A3EB507F6B441AD3413">Durable CQ and Client Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_8BB061D1A7A9488C819FE2B7881A1278">Function Execution Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_F0AE5CE40D6D49BF92247F5EF4F871D2">Gateway (WAN) Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_B742E9E862BA457082E2346581C97D03">Geode Monitoring Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_688C66526B4649AFA51C0F72F34FA45E">Index Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_2A6DA4078E4E496A9F725A29BC4CFD0D">JMX Connection Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_1C82E6F1B2AF4A65A8DA6B3C846BAC13">Locator Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_lucene_commands">Lucene Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_cvg_bls_5q">PDX Commands</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/quick_ref_commands_by_area.html#topic_EF03129A40EE492984F3B6248596E1DD">Region Commands</a>
</li>
<li>
<a href="/docs/guide/115/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/115/tools_modules/gfsh/gfsh_command_index.html">gfsh Command Help</a>
<ul>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/alter.html">alter</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/alter.html#topic_alter_async_event_queue">alter async-event-queue</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/alter.html#topic_99BCAD98BDB5470189662D2F308B68EB">alter disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/alter.html#topic_alter_query_service">alter query-service</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/alter.html#topic_E74ED23CB60342538B2175C326E7D758">alter region</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/alter.html#topic_7E6B7E1B972D4F418CB45354D1089C2B">alter runtime</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/backup.html">backup disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/change.html">change loglevel</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/clear.html">clear defined indexes</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/close.html">close</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/close.html#topic_4125AAAB9FE44CD787166E48B694C41D">close durable-client</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/close.html#topic_1BC15B3132BA480DB227921A9B3ABDD1">close durable-cq</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/compact.html">compact</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/compact.html#topic_F123C95C076F424E9AA8AC4F1F6324CC">compact disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/compact.html#topic_9CCFCB2FA2154E16BD775439C8ABC8FB">compact offline-disk-store</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/configure.html">configure</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/connect.html">connect</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html">create</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_ryz_pb1_dk">create async-event-queue</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_w2t_l3m_qq">create defined indexes</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_bkn_zty_ck">create disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_a4x_pb1_dk">create gateway-receiver</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_hg2_bjz_ck">create gateway-sender</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_960A5B6FD3D84E1881EE128E299DD12D">create index</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#create_jndi-binding">create jndi-binding</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#create_lucene_index">create lucene index</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/create.html#topic_54B0985FEC5241CA9D26B0CE0A5EA863">create region</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/debug.html">debug</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/define.html">define index</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/deploy.html">deploy</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html">describe</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_gyr_jgz_ck">describe client</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_3C2C817D999C4E40AF788808B7B6AF99">describe config</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_591DC6B781B641268E6173E69AC6D201">describe connection
</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_C635B500BE6A4F1D9572D0BC98A224F2">describe disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#describe_jndi-binding">describe jndi-binding</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#describe_lucene_index">describe lucene index</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_D62F3D42B1D84CF68F03D54D5122806A">describe member</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_kys_yvk_2l">describe offline-disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_describe_query_service">describe query-service</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/describe.html#topic_DECF7D3D33F54071B6B8AD4EA7E3F90B">describe region
</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html">destroy</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#topic_destroy-async-event-queue">destroy async-event-queue</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#topic_yfr_l2z_ck">destroy disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#topic_E48C2DF809054C12A162026D8A2139BB">destroy function</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#destroy-gr">destroy gateway-receiver</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#destroy-gs">destroy gateway-sender</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#topic_D00219CCD6F64C1582A0802AC5CDF3F3">destroy index</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#destroy_jndi-binding">destroy jndi-binding</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#destroy_lucene_index">destroy lucene index</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/destroy.html#topic_BEDACECF4599407794ACBC0E56B30F65">destroy region</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/disconnect.html">disconnect</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/echo.html">echo</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/execute.html">execute function</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/exit.html">exit</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html">export</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html#topic_mdv_jgz_ck">export cluster-configuration
</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html#topic_C7C69306F93743459E65D46537F4A1EE">export config</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html#topic_263B70069BFC4A7185F86B3272011734">export data</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html#topic_B80978CC659244AE91E2B8CE56EBDFE3">export logs</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html#topic_sjg_bvt_gq">export offline-disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/export.html#topic_195D27B8B2B64A4E84CF2256636D54BD">export stack-traces</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/gc.html">gc</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/get.html">get</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/help.html">help</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/hint.html">hint</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/history.html">history</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/import.html">import</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/import.html#topic_vnv_grz_ck">import cluster-configuration</a>
</li>
<li>
<a href="/docs/guide/115/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/115/tools_modules/gfsh/command-pages/list.html">list</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_j22_kzk_2l">list async-event-queues</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_ts1_qb1_dk">list clients</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_59DF60DE71AD4097B281749425254BFF">list deployed
</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_BC14AD57EA304FB3845766898D01BD04">list disk-stores</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_66016A698C334F4EBA19B99F51B0204B">list durable-cqs</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_DCC7CCBBEF5942B783A8F2A4A5B2FABF">list functions</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_B1D89671C7B74074899C7D52F15849ED">list gateways</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_B3B51B6DEA484EE086C4F657EC9831F2">list indexes</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#list_jndi-binding">list jndi-binding</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#list_lucene_indexes">list lucene indexes</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_5B5BFB2E5F314210858641BE3A689637">list members</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/list.html#topic_F0ECEFF26086474498598035DD83C588">list regions</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/load-balance.html">load-balance gateway-sender</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/locate.html">locate entry</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/netstat.html">netstat</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/pause.html">pause gateway-sender</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/pdx.html">pdx rename</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/put.html">put</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/query.html">query</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/rebalance.html">rebalance</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/remove.html">remove</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/restore.html">restore redundancy</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/resume.html">resume</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/resume.html#topic_resume_async_event_queue_dispatcher">resume async-event-queue-dispatcher</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/resume.html#topic_resume_gateway_sender">resume gateway-sender</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/revoke.html">revoke missing-disk-store</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/run.html">run</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/search.html">search lucene</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/set.html">set variable</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/sh.html">sh</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/show.html">show</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/show.html#topic_1225347FAD6541DF995C9999650165B1">show dead-locks</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/show.html#topic_45AAEDAC3AFF46EC9BB68B24FC9A32B3">show log</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/show.html#topic_6EB786C63AEB46179EEE8FA18624295A">show metrics</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/show.html#topic_7B3D624D5B4F41D1A0F8A9C3C8B2E780">show missing-disk-stores</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/show.html#topic_395C96B500AD430CBF3D3C8886A4CD2E">show subscription-queue-size</a>
</li>
</ul>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/shutdown.html">shutdown</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/sleep.html">sleep</a>
</li>
<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html">start</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_67738A5B68E84DEE95D1C92DAB2E26E5">start gateway-receiver</a>
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<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_AB8BA3F42B9645A8BE9BD97CE2F839A8">start gateway-sender</a>
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<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_D00507416F3944DFAB48D2FA2B9E4A31">start jconsole</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_5B5BF8BEE905463D8B7762B89E2D65E7">start jvisualvm
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<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_591260CF25D64562A0EDD7260D2AC6D4">start locator</a>
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<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_E906BA7D9E7F4C5890FEFA7ECD40DD77">start pulse</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/start.html#topic_3764EE2DB18B4AE4A625E0354471738A">start server</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html">status</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html#topic_ts1_qb1_dk2">status cluster-config-service</a>
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<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html#topic_B0F45DC2D5F64FB1A2F738206BC6539E">status gateway-receiver</a>
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<li>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html#topic_6F539877F0564F05AF264A9E704EC842">status gateway-sender</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html#topic_E96D0EFA513C4CD79B833FCCDD69C832">status locator</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html#topic_status_redundancy">status redundancy</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/status.html#topic_E5DB49044978404D9D6B1971BF5D400D">status server</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/stop.html">stop</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/stop.html#topic_CD1D526FD6F84A7B80B25C741229ED30">stop gateway-receiver
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/stop.html#topic_0BBDD4B3B8A44A65A610F766C9E85519">stop gateway-sender</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/stop.html#topic_EF61C54B35BA4AB7B14E58CF912F283E">stop locator</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/stop.html#topic_723EE395A63A40D6819618AFC2902125">stop server</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/undeploy.html">undeploy</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/validate.html">validate offline-disk-store</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command-pages/version.html">version</a>
<a href="/docs/guide/115/tools_modules/gfsh/command-pages/wan_copy_region.html">wan-copy region</a>
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<a href="/docs/guide/115/tools_modules/gfsh/command_scripting.html">Creating and Running gfsh Command Scripts</a>
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<a href="/docs/guide/115/tools_modules/gfsh/os_command_line_execution.html">Running gfsh Commands on the OS Command Line</a>
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<a href="/docs/guide/115/tools_modules/gfsh/cache_xml_2_gfsh.html">Mapping cache.xml Elements to gfsh Configuration Commands</a>
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<a href="/docs/guide/115/tools_modules/gemcached/chapter_overview.html">Gemcached</a>
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<li>
<a href="/docs/guide/115/tools_modules/gemcached/about_gemcached.html">How Gemcached Works</a>
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<li>
<a href="/docs/guide/115/tools_modules/gemcached/deploying_gemcached.html">Deploying and Configuring a Gemcached Server</a>
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<a href="/docs/guide/115/tools_modules/gemcached/advantages.html">Advantages of Gemcached over Memcached</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/chapter_overview.html">HTTP Session Management Modules</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/quick_start.html">HTTP Session Management Quick Start</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/http_why_use_gemfire.html">Advantages of Using Geode for Session Management</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/common_gemfire_topologies.html">Common Topologies for HTTP Session Management</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/tc_additional_info.html">General Information on HTTP Session Management</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/session_state_log_files.html">Session State Log Files</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/configuring_non_sticky_sessions.html">Configuring Non-Sticky Sessions</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/session_mgmt_tcserver.html">HTTP Session Management Module for Pivotal tc Server</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/tc_installing_the_module.html">Installing the HTTP Module for tc Server</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/tc_setting_up_the_module.html">Setting Up the HTTP Module for tc Server</a>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/tc_changing_gf_default_cfg.html">Changing the Default Geode Configuration in the tc Server Module</a>
<ul>
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/interactive_mode_ref.html">Interactive Configuration Reference for the tc Server Module
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<a href="/docs/guide/115/tools_modules/http_session_mgmt/session_mgmt_tomcat.html">HTTP Session Management Module for Tomcat</a>
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<li>
<a href="/docs/guide/115/tools_modules/http_session_mgmt/tomcat_installing_the_module.html">Installing the HTTP Module for Tomcat</a>
</li>
<li>
<a href="/docs/guide/115/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/115/tools_modules/http_session_mgmt/tomcat_changing_gf_default_cfg.html">Changing the Default Geode Configuration in the Tomcat Module</a>
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</ul>
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<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/http_session_mgmt/session_mgmt_weblogic.html">HTTP Session Management Module for AppServers</a>
<ul>
<li>
<a href="/docs/guide/115/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/115/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/115/tools_modules/http_session_mgmt/weblogic_common_configuration_changes.html">Common Geode Configuration Changes for AppServers</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
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<li class="has_submenu">
<a href="/docs/guide/115/tools_modules/pulse/pulse-overview.html">Geode Pulse</a>
<ul>
<li>
<a href="/docs/guide/115/tools_modules/pulse/pulse-requirements.html">Pulse System Requirements</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/pulse/pulse-embedded.html">Running Pulse in Embedded Mode (Quick Start)</a>
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<a href="/docs/guide/115/tools_modules/pulse/pulse-hosted.html">Hosting Pulse on a Web Application Server</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/pulse/pulse-auth.html">Configuring Pulse Authentication</a>
</li>
<li>
<a href="/docs/guide/115/tools_modules/pulse/pulse-views.html">Using Pulse Views</a>
</li>
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<a href="/docs/guide/115/tools_modules/lucene_integration.html">Apache Lucene Integration</a>
<ul>
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<a href="/docs/guide/115/tools_modules/lucene_integration.html#using-the-apache-lucene-integration">Using the Apache Lucene Integration</a>
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<a href="/docs/guide/115/tools_modules/lucene_integration.html#LuceneRandC">Requirements and Caveats</a>
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<a href="/docs/guide/115/tools_modules/micrometer/micrometer-overview.html">Micrometer</a>
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<a href="/docs/guide/115/tools_modules/micrometer/micrometer-configuration.html">Configuration and Publishing</a>
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<a href="/docs/guide/115/tools_modules/micrometer/micrometer-meters.html">Micrometer Meters and Tags</a>
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<a href="/docs/guide/115/use_cases/book_intro.html">Use Cases</a>
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<a href="/docs/guide/115/use_cases/inline-cache.html">The Inline Cache</a>
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<a href="/docs/guide/115/reference/book_intro.html">Reference</a>
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<a href="/docs/guide/115/reference/topics/gemfire_properties.html">gemfire.properties and gfsecurity.properties (Geode Properties)</a>
<ul>
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<a href="/docs/guide/115/reference/topics/non-ascii_strings_in_config_files.html">Using Non-ASCII Strings in Apache Geode Property Files</a>
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<a href="/docs/guide/115/reference/topics/chapter_overview_cache_xml.html">cache.xml
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<a href="/docs/guide/115/reference/topics/elements_ref.html">cache.xml Quick Reference</a>
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<a href="/docs/guide/115/reference/topics/cache-elements-list.html">&lt;cache&gt; Element Hierarchy</a>
</li>
<li>
<a href="/docs/guide/115/reference/topics/cache_xml.html">&lt;cache&gt; Element Reference</a>
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<li>
<a href="/docs/guide/115/reference/topics/client-cache-elements-list.html">
&lt;client-cache&gt; Element Hierarchy</a>
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<a href="/docs/guide/115/reference/topics/client-cache.html">&lt;client-cache&gt; Element Reference</a>
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<a href="/docs/guide/115/reference/topics/chapter_overview_regionshortcuts.html">Region Shortcuts</a>
<ul>
<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_table.html">Region Shortcuts Quick Reference</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_w2h_3cd_lk">
LOCAL
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_wd5_lpy_lk">
LOCAL_HEAP_LRU
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_adk_y4y_lk">
LOCAL_OVERFLOW
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_l5r_y4y_lk">
LOCAL_PERSISTENT
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_a45_y4y_lk">
LOCAL_PERSISTENT_OVERFLOW
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_ow5_4qy_lk">
PARTITION
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_twx_y4y_lk">
PARTITION_HEAP_LRU
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_js1_z4y_lk">
PARTITION_OVERFLOW
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_d4k_jpy_lk">
PARTITION_PERSISTENT
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_v5l_jpy_lk">
PARTITION_PERSISTENT_OVERFLOW
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_v4m_jpy_lk">
PARTITION_PROXY
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_c1n_jpy_lk">
PARTITION_PROXY_REDUNDANT
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_shn_jpy_lk">
PARTITION_REDUNDANT
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_m4n_jpy_lk">
PARTITION_REDUNDANT_HEAP_LRU
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_own_jpy_lk">
PARTITION_REDUNDANT_OVERFLOW
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_bd4_jpy_lk">
PARTITION_REDUNDANT_PERSISTENT
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_xqq_tvc_lk">
PARTITION_REDUNDANT_PERSISTENT_OVERFLOW
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_wq4_jpy_lk">
REPLICATE
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_xx4_jpy_lk">
REPLICATE_HEAP_LRU
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_t2p_jpy_lk">
REPLICATE_OVERFLOW
</a>
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<li>
<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_emp_jpy_lk">
REPLICATE_PERSISTENT
</a>
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_tsp_jpy_lk">
REPLICATE_PERSISTENT_OVERFLOW
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<a href="/docs/guide/115/reference/topics/region_shortcuts_reference.html#reference_n1q_jpy_lk">
REPLICATE_PROXY
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<a href="/docs/guide/115/reference/topics/handling_exceptions_and_failures.html">
Exceptions and System Failures</a>
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<a href="/docs/guide/115/reference/topics/memory_requirements_for_cache_data.html">Memory Requirements for Cached Data</a>
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<a href="/docs/guide/115/reference/statistics_list.html">Geode Statistics List</a>
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<li>
<a href="/docs/guide/115/reference/statistics_list.html#section_DEF8D3644D3246AB8F06FE09A37DC5C8">Cache Performance (CachePerfStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_EF5C2C59BFC74FFB8607F9571AB9A471">Cache Server (CacheServerStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_B08C0783BBF9489E8BB48B4AEC597C62">Client-Side Notifications (CacheClientUpdaterStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_04B7D7387E584712B7710B5ED1E876BB">Client-to-Server Messaging Performance (ClientStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_6C247F61DB834C079A16BE92789D4692">Client Connection Pool (PoolStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_66C0E7748501480B85209D57D24256D5">Continuous Querying (CQStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_D4ABED3FF94245C0BEE0F6FC9481E867">Delta Propagation (DeltaPropagationStatistics)</a>
</li>
<li>
<a href="/docs/guide/115/reference/statistics_list.html#section_6C2BECC63A83456190B029DEDB8F4BE3">Disk Space Usage (DiskDirStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_983BFC6D53C74829A04A91C39E06315F">Disk Usage and Performance (DiskRegionStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_ACB4161F10D64BC0B15871D003FF6FDF">Distributed System Messaging (DistributionStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_78D346A580724E1EA645E31626EECE40">Distributed Lock Services (DLockStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_5E212DDB0E8640689AD0A4659512E17A">Function Execution (FunctionServiceStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_C4199A541B1F4B82B6178C416C0FAE4B">Gateway Queue (GatewayStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_86A61860024B480592DAC67FFB882538">Indexes (IndexStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_607C3867602E410CAE5FAB26A7FF1CB9">JVM Performance</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_C48B654F973E4B44AD825D459C23A6CD">Locator (LocatorStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#LuceneStats">Lucene Indexes (LuceneIndexStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#topic_ohc_tjk_w5">Off-Heap (OffHeapMemoryStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_923B28F01BC3416786D3AFBD87F22A5E">Operating System Statistics - Linux</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_35AC170770C944C3A336D9AEC2D2F7C5">Partitioned Regions (PartitionedRegion&lt;partitioned_region_name&gt;Statistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_374FBD92A3B74F6FA08AA23047929B4F">Region Entry Eviction – Count-Based (LRUStatistics)
</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_3D2AA2BCE5B6485699A7B6ADD1C49FF7">Region Entry Eviction – Size-based (LRUStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_5362EF9AECBC48D69475697109ABEDFA">Server Notifications for All Clients (CacheClientNotifierStatistics)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_E03865F509E543D9B8F9462B3DA6255E">Server Notifications for Single Client (CacheClientProxyStatistics)</a>
</li>
<li>
<a href="/docs/guide/115/reference/statistics_list.html#section_3AB1C0AA55014163A2BBF68E13D25E3A">Server-to-Client Messaging Performance (ClientSubscriptionStats)</a>
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<a href="/docs/guide/115/reference/statistics_list.html#section_55F3AF6413474317902845EE4996CC21">Statistics Collection (StatSampler)</a>
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<a href="/docs/guide/115/reference/archive_transactions/chapter_overview.html">Transaction Reference Material</a>
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<a href="/docs/guide/115/reference/archive_transactions/JTA_transactions.html">JTA Global Transactions with Geode
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<ul>
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<a href="/docs/guide/115/reference/archive_transactions/JTA_transactions.html#concept_cp1_zx1_wk">Coordinating with External JTA Transaction Managers</a>
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<a href="/docs/guide/115/reference/archive_transactions/JTA_transactions.html#concept_csy_vfb_wk">Using Geode as the "Last Resource" in a Container-Managed JTA Transaction</a>
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<a href="/docs/guide/115/reference/archive_transactions/cache_plugins_with_jta.html">Behavior of Geode Cache Writers and Loaders Under JTA</a>
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<a href="/docs/guide/115/reference/archive_transactions/turning_off_jta.html">Turning Off JTA Transactions
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<h1 class="title-container" >
System Failure and Recovery
</h1>
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<div class="quick-links"><ul>
<li><a href="#sys_failure__section_846B00118184487FB8F1E0CD1DC3A81B">Planning for Data Recovery</a></li>
<li>
<a href="#sys_failure__section_2C390F0783724048A6E12F7F369EB8DC">Network Partitioning, Slow Response, and Member Removal Alerts</a><ul>
<li><a href="#sys_failure__section_D52D902E665F4F038DA4B8298E3F8681">Network Partitioning Detected</a></li>
<li><a href="#sys_failure__section_2C5E8A37733D4B31A12F22B9155796FD">Member Taking Too Long to Respond</a></li>
<li><a href="#sys_failure__section_AF4F913C244044E7A541D89EC6BCB961">No Locators Can Be Found</a></li>
<li><a href="#sys_failure__section_77BDB0886A944F87BDA4C5408D9C2FC4">Warning Notifications Before Removal</a></li>
<li><a href="#sys_failure__section_E777C6EC8DEC4FE692AC5863C4420238">Member Is Forced Out</a></li>
<li><a href="#sys_failure__section_disk_access_exceptions">Disk Access Exceptions</a></li>
</ul>
</li>
<li><a href="#sys_failure__section_how_data_is_recovered">How Data is Recovered From Persistent Regions</a></li>
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<p>This section describes alerts for and appropriate responses to various kinds of system failures. It also helps you plan a strategy for data recovery.</p>
<p>If a system member withdraws from the cluster involuntarily because the member, host, or network fails, the other members automatically adapt to the loss and continue to operate. The cluster does not experience any disturbance such as timeouts.</p>
<h2 id="planning-for-data-recovery"><a id="sys_failure__section_846B00118184487FB8F1E0CD1DC3A81B"></a>Planning for Data Recovery</h2>
<p>In planning a strategy for data recovery, consider these factors:</p>
<ul>
<li> Whether the region is configured for data redundancy—partitioned regions only.</li>
<li> The region’s role-loss policy configuration, which controls how the region behaves after a crash or system failure—distributed regions only.</li>
<li> Whether the region is configured for persistence to disk.</li>
<li> Whether the region is configured for LRU-based eviction.</li>
<li> The extent of the failure, whether multiple members or a network outage is involved.</li>
<li> Your application’s specific needs, such as the difficulty of replacing the data and the risk of running with inconsistent data for your application.</li>
<li> When an alert is generated due to network partition or slow response, indicating that certain processes may, or will, fail.</li>
</ul>
<p>The rest of this section provides recovery instructions for various kinds system failures.</p>
<h2 id="network-partitioning,-slow-response,-and-member-removal-alerts"><a id="sys_failure__section_2C390F0783724048A6E12F7F369EB8DC"></a>Network Partitioning, Slow Response, and Member Removal Alerts</h2>
<p>When a network partition detection or slow responses occur, these alerts are generated:</p>
<ul>
<li> Network Partitioning is Detected</li>
<li> Member is Taking Too Long to Respond</li>
<li> No Locators Can Be Found</li>
<li> Warning Notifications Before Removal</li>
<li> Member is Forced Out</li>
</ul>
<p>For information on configuring system members to help avoid a network partition configuration condition in the presence of a network failure or when members lose the ability to communicate to each other, refer to <a href="/docs/guide/115/managing/troubleshooting/recovering_from_network_outages.html#rec_network_crash">Understanding and Recovering from Network Outages</a>.</p>
<h3 id="network-partitioning-detected"><a id="sys_failure__section_D52D902E665F4F038DA4B8298E3F8681"></a>Network Partitioning Detected</h3>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership coordinator id has declared that a network partition has occurred.
</code></pre>
<p>Description:</p>
<p>This alert is issued when network partitioning occurs, followed by this alert on the individual member:</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Exiting due to possible network partition event due to loss of {0} cache processes: {1}
</code></pre>
<p>Response:</p>
<p>Check the network connectivity and health of the listed cache processes.</p>
<h3 id="member-taking-too-long-to-respond"><a id="sys_failure__section_2C5E8A37733D4B31A12F22B9155796FD"></a>Member Taking Too Long to Respond</h3>
<p>Alert:</p>
<pre class="highlight plaintext"><code>15 sec have elapsed while waiting for replies: &lt;ReplyProcessor21 6 waiting for 1 replies
from [ent(27130):60333/36743]&gt; on ent(27134):60330/45855 whose current membership
list is: [[ent(27134):60330/45855, ent(27130):60333/36743]]
</code></pre>
<p>Description:</p>
<p>Member ent(27130):60333/36743 is in danger of being forced out of the cluster because of a suspect-verification failure. This alert is issued at the warning level, after the ack-wait-threshold is reached.</p>
<p>Response:</p>
<p>The operator should examine the process to see if it is healthy. The process ID of the slow responder is 27130 on the machine named ent. The ports of the slow responder are 60333/36743. Look for the string, Starting distribution manager ent:60333/36743, and examine the process owning the log file containing this string.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>30 sec have elapsed while waiting for replies: &lt;ReplyProcessor21 6 waiting for 1 replies
from [ent(27130):60333/36743]&gt; on ent(27134):60330/45855 whose current membership
list is: [[ent(27134):60330/45855, ent(27130):60333/36743]]
</code></pre>
<p>Description:</p>
<p>Member ent(27134) is in danger of being forced out of the cluster because of a suspect-verification failure. This alert is issued at the severe level, after the ack-wait-threshold is reached and after ack-severe-alert-threshold seconds have elapsed.</p>
<p>Response:</p>
<p>The operator should examine the process to see if it is healthy. The process ID of the slow responder is 27134 on the machine named ent. The ports of the slow responder are 60333/36743. Look for the string, Starting distribution manager ent:60333/36743, and examine the process owning the log file containing this string.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>15 sec have elapsed while waiting for replies: &lt;DLockRequestProcessor 33636 waiting
for 1 replies from [ent(4592):33593/35174]&gt; on ent(4592):33593/35174 whose current
membership list is: [[ent(4598):33610/37013, ent(4611):33599/60008,
ent(4592):33593/35174, ent(4600):33612/33183, ent(4593):33601/53393, ent(4605):33605/41831]]
</code></pre>
<p>Description:</p>
<p>This alert is issued by partitioned regions and regions with global scope at the warning level, when the lock grantor has not responded to a lock request within the ack-wait-threshold and the ack-severe-alert-threshold.</p>
<p>Response:</p>
<p>None.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>30 sec have elapsed while waiting for replies: &lt;DLockRequestProcessor 23604 waiting
for 1 replies from [ent(4592):33593/35174]&gt; on ent(4598):33610/37013 whose current
membership list is: [[ent(4598):33610/37013, ent(4611):33599/60008,
ent(4592):33593/35174, ent(4600):33612/33183, ent(4593):33601/53393, ent(4605):33605/41831]]
</code></pre>
<p>Description:</p>
<p>This alert is issued by partitioned regions and regions with global scope at the severe level, when the lock grantor has not responded to a lock request within the ack-wait-threshold and the ack-severe-alert-threshold.</p>
<p>Response:</p>
<p>None.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>30 sec have elapsed waiting for global region entry lock held by ent(4600):33612/33183
</code></pre>
<p>Description</p>
<p>This alert is issued by regions with global scope at the severe level, when the lock holder has held the desired lock for ack-wait-threshold + ack-severe-alert-threshold seconds and may be unresponsive.</p>
<p>Response:</p>
<p>None.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>30 sec have elapsed waiting for partitioned region lock held by ent(4600):33612/33183
</code></pre>
<p>Description:</p>
<p>This alert is issued by partitioned regions at the severe level, when the lock holder has held the desired lock for ack-wait-threshold + ack-severe-alert-threshold seconds and may be unresponsive.</p>
<p>Response:</p>
<p>None.</p>
<h3 id="no-locators-can-be-found"><a id="sys_failure__section_AF4F913C244044E7A541D89EC6BCB961"></a>No Locators Can Be Found</h3>
<p><strong>Note:</strong>
It is likely that all processes using the locators will exit with the same message.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership service failure: Channel closed: org.apache.geode.ForcedDisconnectException:
There are no processes eligible to be group membership coordinator
(last coordinator left view)
</code></pre>
<p>Description:</p>
<p>Network partition detection is enabled, and there are locator problems.</p>
<p>Response:</p>
<p>The operator should examine the locator processes and logs, and restart the locators.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership service failure: Channel closed: org.apache.geode.ForcedDisconnectException:
There are no processes eligible to be group membership coordinator
(all eligible coordinators are suspect)
</code></pre>
<p>Description:</p>
<p>Network partition detection is enabled, and there are locator problems.</p>
<p>Response:</p>
<p>The operator should examine the locator processes and logs, and restart the locators.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership service failure: Channel closed: org.apache.geode.ForcedDisconnectException:
Unable to contact any locators and network partition detection is enabled
</code></pre>
<p>Description:</p>
<p>Network partition detection is enabled, and there are locator problems.</p>
<p>Response:</p>
<p>The operator should examine the locator processes and logs, and restart the locators.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership service failure: Channel closed: org.apache.geode.ForcedDisconnectException:
Disconnected as a slow-receiver
</code></pre>
<p>Description:</p>
<p>The member was not able to process messages fast enough and was forcibly disconnected by another process.</p>
<p>Response:</p>
<p>The operator should examine and restart the disconnected process.</p>
<h3 id="warning-notifications-before-removal"><a id="sys_failure__section_77BDB0886A944F87BDA4C5408D9C2FC4"></a>Warning Notifications Before Removal</h3>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership: requesting removal of ent(10344):21344/24922 Disconnected as a slow-receiver
</code></pre>
<p>Description:</p>
<p>This alert is generated only if the slow-receiver functionality is being used.</p>
<p>Response:</p>
<p>The operator should examine the locator processes and logs.</p>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Network partition detection is enabled and both membership coordinator and lead member
are on the same machine
</code></pre>
<p>Description:</p>
<p>This alert is issued if both the membership coordinator and the lead member are on the same machine.</p>
<p>Response:</p>
<p>The operator can turn this off by setting the system property gemfire.disable-same-machine-warnings to true. However, it is best to run locator processes, which act as membership coordinators when network partition detection is enabled, on separate machines from cache processes.</p>
<h3 id="member-is-forced-out"><a id="sys_failure__section_E777C6EC8DEC4FE692AC5863C4420238"></a>Member Is Forced Out</h3>
<p>Alert:</p>
<pre class="highlight plaintext"><code>Membership service failure: Channel closed: org.apache.geode.ForcedDisconnectException:
This member has been forced out of the Distributed System. Please consult GemFire logs to
find the reason.
</code></pre>
<p>Description:</p>
<p>The process discovered that it was not in the cluster and cannot determine why it was
removed. The membership coordinator removed the member after it failed to respond to an internal
are-you-alive message.</p>
<p>Response:</p>
<p>The operator should examine the locator processes and logs.</p>
<h3 id="disk-access-exceptions"><a id="sys_failure__section_disk_access_exceptions"></a>Disk Access Exceptions</h3>
<p>Alert:</p>
<pre class="highlight plaintext"><code>A DiskAccessException has occurred while writing to the disk for region &lt;region-name&gt;.
The cache will be closed. For Region: &lt;region-name&gt;: Failed writing key
to &lt;disk-store-name&gt;
</code></pre>
<p>or</p>
<pre class="highlight plaintext"><code>A DiskAccessException has occurred while writing to the disk for region &lt;region-name&gt;.
The cache will be closed.
For DiskStore: &lt;disk-store-name&gt;: Could not schedule asynchronous write because
the flusher thread had been terminated
</code></pre>
<p>Description:</p>
<p>A write was prevented by an underlying disk issue, such as a full disk.</p>
<p>The first alert form is reported when disk writes are synchronous (<code>disk-synchronous=true</code>),
and the second form is reported when disk writes are asynchronous (<code>disk-synchronous=false</code>).</p>
<p>In either case, the member shuts down when an operation attempts to update the disk store.</p>
<p>Response:</p>
<p>You must address the underlying disk issue and restart the server.
See <a href="/docs/guide/115/managing/troubleshooting/prevent_and_recover_disk_full_errors.html">Preventing and Recovering from Disk Full Errors</a> for suggestions.</p>
<h2 id="how-data-is-recovered-from-persistent-regions"><a id="sys_failure__section_how_data_is_recovered"></a>How Data is Recovered From Persistent Regions</h2>
<p>A persistent region is one whose contents (keys and values) can be restored from disk. Upon
restart, data recovery of a persistent region always recovers keys. Under the default behavior, the
region is regarded as ready for use when the keys have been recovered.</p>
<p>The default behavior for restoring values depends on whether the region was configured with an LRU-based eviction algorithm:</p>
<ul>
<li><p>If the region <strong>was not</strong> configured for LRU-based eviction, the values are loaded asynchronously
on a separate thread. The assumption here is that all of the stored values will fit into the space
allocated for the region.</p></li>
<li><p>If the region <strong>was</strong> configured for LRU-based eviction, the values are not loaded. Each value
will be retrieved only when requested. The assumption here is that the values resident in the
region plus any evicted values might exceed the space allocated for the region, possibly resulting
in an <code>OutOfMemoryException</code> during recovery. <strong>Note:</strong> Recovered values do not contain usage
history&mdash;LRU history is reset at recovery time.</p></li>
</ul>
<p>This default behavior works well under most circumstances. For special cases, three Java system
properties allow the developer to modify the recovery behavior for persistent regions:</p>
<ul>
<li><code>gemfire.disk.recoverValues</code></li>
</ul>
<p>Default = <code>true</code>, recover values for non-LRU regions. Enables the possibility of recovering values for LRU regions (with the setting of an additional property).
If <code>false</code>, recover only keys, do not recover values. The <code>false</code> setting disallows value recovery for LRU regions as well as non-LRU regions.</p>
<p><em>How used:</em> When <code>true</code>, recovery of the values &ldquo;warms up&rdquo; the cache so data retrievals will find
their values in the cache, without causing time consuming disk accesses. When <code>false</code>, shortens
recovery time so the system becomes available for use sooner, but the first retrieval on each key
will require a disk read.</p>
<ul>
<li><code>gemfire.disk.recoverLruValues</code></li>
</ul>
<p>Default = <code>false</code>, do not recover values for a region configured with LRU-based eviction.
If <code>true</code>, recover all of the LRU region&rsquo;s values.
<strong>Note:</strong> <code>gemfire.disk.recoverValues</code> must also be <code>true</code> for this property to take effect.</p>
<p><em>How used:</em> When <code>false</code>, shortens recovery time for an LRU-configured region by not loading
values. When <code>true</code>, restores data values to the cache. As stated above, LRU history is not
recoverable, and recovering values for a region configured with LRU-based eviction incurs some
risk of exceeding allocated memory.</p>
<ul>
<li><code>gemfire.disk.recoverValuesSync</code></li>
</ul>
<p>Default = <code>false</code>, recover values by an asynchronous background process. If <code>true</code>, values are
recovered synchronously, and recovery is not complete until all values have been retrieved.
<strong>Note:</strong> <code>gemfire.disk.recoverValues</code> must also be <code>true</code> for this property to take effect.</p>
<p><em>How used:</em> When <code>false</code>, allows the system to become available sooner, but some time must elapse
before all values have been read from disk into cache memory. Some key retrievals will require disk access, and some will not.
When <code>true</code>, prolongs restart time, but ensures that when available for use, the cache is fully
populated and data retrieval times will be optimal.</p>
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