[jira] Resolved: (AMQ-1885) The jdbc lockKeepAlive thread should be started only if current broker instance successfully started and became a master

["Gary Tully (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/AMQ-1885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Tully resolved AMQ-1885.
-----------------------------

    Resolution: Fixed

fixed in revision 685988. 
Added two jdbc master slave tests cases, normal failover after master dies and failover after temporary db outage.

> The jdbc lockKeepAlive thread should be started only if current broker instance successfully started and became a master
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-1885
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1885
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.1.0
>         Environment: jdbc persistence adapter with master/slave
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>             Fix For: 5.2.0
>
>
> using jdbc persistence with master/slave sharing the database. If the db dies, the master dies when it sees its lock expire. unfortunately the slave also has a lockKeepalive thread that detects the db failure, even if it does not have the lock.
> The lockKeepAlive thread should be used once a lock has been acquired. in this way, the slave can remain trying to acquire the lock and eventually succeed and promote its self to master when the db comes back up.

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