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https://issues.apache.org/jira/browse/CXF-8885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17790548#comment-17790548
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Frédéric CURVAT commented on CXF-8885:
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We are using 4.0.3 and got the same issue.
Thanks to [~globalbus], workaround to use force.urlconnection.http.conduit =
true solved the issue.
> HttpClient SelectorManager threads run indefinitely causing OOM
> ---------------------------------------------------------------
>
> Key: CXF-8885
> URL: https://issues.apache.org/jira/browse/CXF-8885
> Project: CXF
> Issue Type: Bug
> Components: Transports
> Affects Versions: 4.0.0, 3.6.0
> Reporter: Cardo Eggert
> Assignee: Daniel Kulp
> Priority: Major
> Fix For: 3.6.2, 4.0.3
>
> Attachments: image (5).png
>
>
> Probably caused by https://issues.apache.org/jira/browse/CXF-8840 .
> Started to notice that when updating from 3.5.x to 3.6.0 that our servers
> started getting OOM. Noticed from the resulting logs that a lot of threads
> were active that were in the format
> HttpClient-<NR>-SelectorManager
> when reverted to 3.5.6 then it did not occur anymore.
>
> Tried to use VirtualVM when debugging it and saw when the thread was started,
> it never died, basically meaning that it ran indefinitely. OOM happened when
> there were about over 1000 of these threads.
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