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https://issues.apache.org/jira/browse/HBASE-16081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph updated HBASE-16081:
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Attachment: HBASE-16081.patch
> Replication remove_peer gets stuck and blocks WAL rolling
> ---------------------------------------------------------
>
> Key: HBASE-16081
> URL: https://issues.apache.org/jira/browse/HBASE-16081
> Project: HBase
> Issue Type: Bug
> Components: regionserver, Replication
> Reporter: Ashu Pachauri
> Assignee: Joseph
> Attachments: HBASE-16081.patch
>
>
> We use a blocking take from CompletionService in
> HBaseInterClusterReplicationEndpoint. When we remove a peer, we try to shut
> down all threads gracefully. But, under certain race condition, the
> underlying executor gets shutdown and the CompletionService#take will block
> forever, which means the remove_peer call will never gracefully finish.
> Since ReplicationSourceManager#removePeer and
> ReplicationSourceManager#recordLog lock on the same object, we are not able
> to roll WALs in such a situation and will end up with gigantic WALs.
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