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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4478) Improve AssignmentManager.handleRegion so that it can process certain ZK state in the case of RS offline
Date Thu, 10 Nov 2011 18:12:51 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147875#comment-13147875

Hadoop QA commented on HBASE-4478:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/224//console

This message is automatically generated.
> 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
>         Attachments: HBASE-4478_1.patch
> 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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