[jbossts-issues] [JBoss JIRA] (JBTM-2632) Allow the setting of an initial delay in PeriodRecovery

Gytis Trikleris (JIRA) issues at jboss.org
Fri Apr 1 03:25:01 EDT 2016

     [ https://issues.jboss.org/browse/JBTM-2632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gytis Trikleris updated JBTM-2632:
    Fix Version/s: 5.next
                       (was: 5.3.2.Final)

> Allow the setting of an initial delay in PeriodRecovery
> -------------------------------------------------------
>                 Key: JBTM-2632
>                 URL: https://issues.jboss.org/browse/JBTM-2632
>             Project: JBoss Transaction Manager
>          Issue Type: Enhancement
>          Components: Recovery
>            Reporter: Matthew Robson
>            Assignee: Tom Jenkinson
>             Fix For: 5.next
> 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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