2016-04-30 04:39:32 +00:00
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2016-04-28 22:25:54 +00:00
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[[_clustering_db_lock]]
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=== Serialized Cluster Startup
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2016-04-29 20:12:12 +00:00
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{{book.project.name}} cluster nodes are allowed to boot concurrenty.
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When {{book.project.name}} server instance boots up it may do some database migration, importing, or first time initializations.
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2016-06-01 15:56:17 +00:00
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A DB lock is used to prevent start actions from conflicting with one another when cluster nodes boot up concurrently.
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2016-04-28 22:25:54 +00:00
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2016-04-29 20:12:12 +00:00
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By default, the maximum timeout for this lock is 900 seconds. If a node is waiting on this lock for more than the timeout
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2016-06-01 15:56:17 +00:00
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it will fail to boot.
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2016-08-31 17:53:47 +00:00
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Typically you won't need to increase/decrease the default value, but just in case it's possible to configure it in
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`standalone.xml`, `standalone-ha.xml`, or `domain.xml` file in your distribution. The location of this file
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depends on your <<fake/../../operating-mode.adoc#_operating-mode, operating mode>>.
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2016-04-28 22:25:54 +00:00
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2016-08-31 17:53:47 +00:00
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[source,xml]
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2016-04-28 22:25:54 +00:00
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----
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2016-08-31 17:53:47 +00:00
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<spi name="dblock">
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<provider name="jpa" enabled="true">
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<properties>
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<property name="lockWaitTimeout" value="900"/>
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</properties>
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</provider>
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</spi>
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2017-02-16 09:55:31 +00:00
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----
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