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https://issues.apache.org/jira/browse/TS-3778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640539#comment-14640539
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Susan Hinrichs commented on TS-3778:
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Reverted TS-3640 and TS-3584
> Memory leak caused by the TS-3640.
> ----------------------------------
>
> Key: TS-3778
> URL: https://issues.apache.org/jira/browse/TS-3778
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Reporter: Sudheer Vinukonda
> Assignee: Sudheer Vinukonda
> Priority: Blocker
> Fix For: 6.1.0
>
>
> TS-3640 removed the code that was otherwise always doing a half-close on the
> ua_session for POST transactions that had error'ed on the origin connection.
> It seems like this allows to preserve the keep alive client connections as
> well as drain any body that was still in the buffers. This piece of code is
> very important when there's heavy POST involved.
> On a related note, I see that TS-3640 was added to fix regressions caused by
> TS-3584. But, TS-3584 looks questionable to me too.
> We have observed heavy memory leaks with hosts crashing in less than a day
> after TS-3640's commit has been deployed (We are in the process of confirming
> that the problem is completely resolved by reverting TS-3640. The memory
> looks stable enough after about 12 hrs run without TS-3640, running a little
> longer to be safe)
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