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[[offline-sessions-preloading]]
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2021-06-17 14:39:30 +00:00
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=== Offline sessions preloading
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2021-05-31 18:05:04 +00:00
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2024-01-10 15:44:56 +00:00
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In addition to Infinispan caches, offline sessions are stored in a database which means they will be available even after server restart.
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By default, the offline sessions are not preloaded from the database into the Infinispan caches during the server startup, because this
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2022-01-17 13:31:34 +00:00
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approach has a drawback if there are many offline sessions to be preloaded. It can significantly slow down the server startup time.
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Therefore, the offline sessions are lazily fetched from the database by default.
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2024-01-10 15:44:56 +00:00
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However, {project_name} can be configured to preload the offline sessions from the database into the Infinispan caches during the server startup.
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It can be achieved by setting `preloadOfflineSessionsFromDatabase` property in the `userSessions` SPI to `true`.
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2024-03-06 11:32:06 +00:00
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:tech_feature_name: Offline session preloading
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:tech_feature_id: offline-session-preloading
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include::../templates/deprecated.adoc[]
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The following example shows how to configure offline sessions preloading.
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2022-02-08 13:07:16 +00:00
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[source,bash]
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----
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bin/kc.[sh|bat] start --features-enabled offline-session-preloading --spi-user-sessions-infinispan-preload-offline-sessions-from-database=true
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----
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