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https://issues.apache.org/jira/browse/HBASE-4124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092583#comment-13092583
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gaojinchao commented on HBASE-4124:
-----------------------------------
@Ted thanks for your work.
sn has checked about null above statement.
if (sn == null) {
LOG.warn("Region in transition " + regionInfo.getEncodedName() +
" references a null server; letting RIT timeout so will be " +
"assigned elsewhere");
break;
}
> ZK restarted while a region is being assigned, new active HM re-assigns it
> but the RS warns 'already online on this server'.
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-4124
> URL: https://issues.apache.org/jira/browse/HBASE-4124
> Project: HBase
> Issue Type: Bug
> Components: master
> Reporter: fulin wang
> Assignee: gaojinchao
> Fix For: 0.90.5
>
> Attachments: 4124-trunk.v2, HBASE-4124_Branch90V1_trial.patch,
> HBASE-4124_Branch90V2.patch, HBASE-4124_Branch90V3.patch,
> HBASE-4124_Branch90V4.patch, HBASE-4124_TrunkV1.patch, log.txt
>
> Original Estimate: 0.4h
> Remaining Estimate: 0.4h
>
> ZK restarted while assigning a region, new active HM re-assign it but the RS
> warned 'already online on this server'.
> Issue:
> The RS failed besause of 'already online on this server' and return; The HM
> can not receive the message and report 'Regions in transition timed out'.
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