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https://issues.apache.org/jira/browse/HBASE-16960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15623074#comment-15623074
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stack commented on HBASE-16960:
-------------------------------
I've been thinking about this. If 7k outstanding appends, then 1., there are
few syncs going on in this set up (is that right [~aoxiang]) and 2., yeah, we
must be dispatching Packets as we fill up 64kb (default size) and so something
like the above might happen. I suppose no chance of figuring why we timed out
against one of the DNs in the pipeline?
> RegionServer hang when aborting
> -------------------------------
>
> Key: HBASE-16960
> URL: https://issues.apache.org/jira/browse/HBASE-16960
> Project: HBase
> Issue Type: Bug
> Reporter: binlijin
> Assignee: binlijin
> Attachments: HBASE-16960.patch, HBASE-16960_master_v2.patch,
> RingBufferEventHandler.png, RingBufferEventHandler_exception.png,
> SyncFuture.png, SyncFuture_exception.png, rs1081.jstack
>
>
> We see regionserver hang when aborting several times and cause all regions on
> this regionserver out of service and then all affected applications stop
> works.
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