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Posted to issues@hbase.apache.org by "stack (Resolved) (JIRA)" <ji...@apache.org> on 2011/12/12 20:27:31 UTC
[jira] [Resolved] (HBASE-4881) Unhealthy region is on service
caused by rollback of region splitting
[ https://issues.apache.org/jira/browse/HBASE-4881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-4881.
--------------------------
Resolution: Fixed
Fix Version/s: 0.92.0
Assignee: chunhui shen
Hadoop Flags: Reviewed
Committed trunk and 0.92 branch. Thank you for the patch Chunhui.
> Unhealthy region is on service caused by rollback of region splitting
> ---------------------------------------------------------------------
>
> Key: HBASE-4881
> URL: https://issues.apache.org/jira/browse/HBASE-4881
> Project: HBase
> Issue Type: Bug
> Reporter: chunhui shen
> Assignee: chunhui shen
> Fix For: 0.92.0
>
> Attachments: 4881-v2.txt, hbase-4881.patch
>
>
> If region splitting is failed in the state of JournalEntry.CLOSED_PARENT_REGION
> It will be rollback as the following steps:
> {code}
> 1.case CLOSED_PARENT_REGION:
> this.parent.initialize();
> break;
> 2.case CREATE_SPLIT_DIR:
> this.parent.writestate.writesEnabled = true;
> cleanupSplitDir(fs, this.splitdir);
> break;
> 3.case SET_SPLITTING_IN_ZK:
> if (server != null && server.getZooKeeper() != null) {
> cleanZK(server, this.parent.getRegionInfo());
> }
> break;
> {code}
> If this.parent.initialize() throws IOException in step 1,
> If check filesystem is ok. it will do nothing.
> However, the parent region is on service now.
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