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https://issues.apache.org/jira/browse/ACCUMULO-4787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16364744#comment-16364744
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Adam J Shook edited comment on ACCUMULO-4787 at 2/14/18 8:38 PM:
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Applied to {{1.8}}, cherry-picked into {{1.7}}, and merged into {{master}}.
was (Author: adamjshook):
Applied to {{1.8}, cherry-picked into {{1.7}}, and merged into {{master}}.
> Numerous leaked CLOSE_WAIT threads from TabletServer
> ----------------------------------------------------
>
> Key: ACCUMULO-4787
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4787
> Project: Accumulo
> Issue Type: Bug
> Affects Versions: 1.8.1
> Environment: * Ubuntu 14.04
> * HDFS 2.6.0 and 2.5.0 (in the middle of an upgrade cycle)
> * ZooKeeper 3.4.6
> * Accumulo 1.8.1
> * HotSpot 1.8.0_121
> Reporter: Adam J Shook
> Assignee: Adam J Shook
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.7.4, 1.9.0, 2.0.0
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> I'm running into an issue across all environments where TabletServers are
> occupying a large number of ports in a CLOSED_WAIT state writing to a
> DataNode at port 50010. I'm seeing numbers from around 12,000 to 20,000
> ports. In some instances, there were over 68k and it was affecting other
> applications from getting a free port and they would fail to start (which is
> how we found this in the first place).
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