[jbossts-issues] [JBoss JIRA] (JBTM-2720) Allow the setting of an initial delay in PeriodRecovery
Tom Jenkinson (JIRA)
issues at jboss.org
Tue Aug 16 09:18:00 EDT 2016
[ https://issues.jboss.org/browse/JBTM-2720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Issue was automatically transitioned when Tom Jenkinson created pull request #1053 in GitHub
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Status: Pull Request Sent (was: Reopened)
> Allow the setting of an initial delay in PeriodRecovery
> -------------------------------------------------------
>
> Key: JBTM-2720
> URL: https://issues.jboss.org/browse/JBTM-2720
> Project: JBoss Transaction Manager
> Issue Type: Enhancement
> Components: Recovery
> Reporter: Matthew Robson
> Assignee: Tom Jenkinson
> Fix For: 4.17.35, 5.3.4.Final
>
>
> Currently Periodic Recovery kicks off at the same interval on every server. As a domain mode cluster grows in size, this leads to significant contention in the DB, especially for RAC implementations. Completion time goes from milliseconds with 1 server to 20+ seconds with 20+ servers.
> In an effort to avoid this, an offset the initial start of Periodic Recovery could be provided for the nodes in the cluster.
> Periodic Recovery currently leverages 2 properties:
> <system-properties>
> <property name="RecoveryEnvironmentBean.periodicRecoveryPeriod" value="120"/>
> <property name="RecoveryEnvironmentBean.recoveryBackoffPeriod" value="10"/>
> </system-properties>
> The proposal would be to add a 3rd property, 'RecoveryEnvironmentBean.periodicRecoveryInitilizationOffset' which, when set, would be used for each node. If not set, it would default to current behavior.
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