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https://issues.apache.org/jira/browse/HBASE-17077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guanghao Zhang updated HBASE-17077:
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Attachment: HBASE-17077-v1.patch
The zk can't delete the old queue znode directory directly. So attach v1 patch
which delete the old wal znode one by one.
> Don't copy the replication queue which belong to the peer has been deleted
> --------------------------------------------------------------------------
>
> Key: HBASE-17077
> URL: https://issues.apache.org/jira/browse/HBASE-17077
> Project: HBase
> Issue Type: Improvement
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Priority: Minor
> Attachments: HBASE-17077-v1.patch, HBASE-17077.patch
>
>
> When a region server is dead, then other live region servers will transfer
> the dead rs's replication queue to their own queue. Now the live rs first
> copy the wals queue to its own znode, then create a new replication source to
> replicate the wals. But if the queue belong to a peer has been deleted, it
> copy the queue, too. The current steps is:
> 1. copy the queue to its own znode
> 2. found the queue belong to a peer has been deleted
> 3. remove the queue and don't create a new replication source for it
> There is a small improvement. The live region server doesn't need to copy the
> queue to its own znode. The new steps is:
> 1. found the queue belong to a peer has been deleted
> 2. remove the queue directly instead of copy it
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