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Posted to issues@hbase.apache.org by "Ted Yu (Assigned) (JIRA)" <ji...@apache.org> on 2011/11/10 19:06:52 UTC
[jira] [Assigned] (HBASE-4478) Improve
AssignmentManager.handleRegion so that it can process certain ZK state in
the case of RS offline
[ https://issues.apache.org/jira/browse/HBASE-4478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu reassigned HBASE-4478:
-----------------------------
Assignee: ramkrishna.s.vasudevan (was: Ming Ma)
> Improve AssignmentManager.handleRegion so that it can process certain ZK state in the case of RS offline
> --------------------------------------------------------------------------------------------------------
>
> Key: HBASE-4478
> URL: https://issues.apache.org/jira/browse/HBASE-4478
> Project: HBase
> Issue Type: Bug
> Reporter: Ming Ma
> Assignee: ramkrishna.s.vasudevan
>
> Currently AssignmentManager.handleRegion skips processing of ZK event change if the RS is offline. It relies on TimeoutMonitor and ServerShutdownHandler to process RIT.
> // Verify this is a known server
> if (!serverManager.isServerOnline(sn) &&
> !this.master.getServerName().equals(sn)) {
> LOG.warn("Attempted to handle region transition for server but " +
> "server is not online: " + Bytes.toString(data.getRegionName()));
> return;
> }
> For certain states like OPENED, OPENING, FAILED_OPEN, CLOSED, it can continue the progressing even if the RS is offline.
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