[
https://issues.apache.org/jira/browse/HBASE-4446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack resolved HBASE-4446.
--------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
Committed to 0.92 branch and trunk. Thanks for the patch Ming.
> Rolling restart RSs scenario, regions could stay in OPENING state
> -----------------------------------------------------------------
>
> Key: HBASE-4446
> URL: https://issues.apache.org/jira/browse/HBASE-4446
> Project: HBase
> Issue Type: Bug
> Components: master
> Reporter: Ming Ma
> Assignee: Ming Ma
> Fix For: 0.92.0
>
> Attachments: HBASE-4446-trunk.patch
>
>
> Keep Master up all the time, do rolling restart of RSs like this - stop RS1,
> wait for 2 seconds, stop RS2, start RS1, wait for 2 seconds, stop RS3, start
> RS2, wait for 2 seconds, etc. Region sometimes can just stay in OPENING state
> even after timeoutmonitor period.
> 2011-09-19 08:10:33,131 WARN
> org.apache.hadoop.hbase.master.AssignmentManager: While timing out a region
> in state OPENING, found ZK node in unexpected state: RS_ZK_REGION_FAILED_OPEN
> The issue - RS was shutdown when a region is being opened, it was
> transitioned to RS_ZK_REGION_FAILED_OPEN in ZK. In timeoutmonitor, it didn't
> take care of RS_ZK_REGION_FAILED_OPEN.
> processOpeningState
> ...
> else if (dataInZNode.getEventType() != EventType.RS_ZK_REGION_OPENING &&
> LOG.warn("While timing out a region in state OPENING, "
> + "found ZK node in unexpected state: "
> + dataInZNode.getEventType());
> return;
> }
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
