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https://issues.apache.org/jira/browse/SOLR-15518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17382474#comment-17382474
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Emmanuel Gosse commented on SOLR-15518:
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Hi [~prasad-acit]
Yes, I reproduced it on both version.
I keep digging. I took the time to draw what I think is happening.
!image-2021-07-17-07-55-44-403.png|width=1198,height=610!
> Jetty QTP Thread leaks, may update Jetty to 9.4.42+
> ----------------------------------------------------
>
> Key: SOLR-15518
> URL: https://issues.apache.org/jira/browse/SOLR-15518
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 8.8
> Reporter: Emmanuel Gosse
> Priority: Major
> Attachments: image-2021-07-17-07-55-44-403.png
>
>
> Hi,
> As mentioned in this Jetty issue description,
> [https://github.com/eclipse/jetty.project/issues/6323,]
> I can attest that I met this bug in SolR 8.8.0 : index files locked (in DEL
> mode : cf LSOF) by qtp threads staying in TIME WAITING forever.
> As this threads won't recover if there is a constant load (a pause in the
> calls allows qtp pool to free them), servers go to crash because of a memory
> leaks that stay attached to this threads.
>
> So good news, Jetty seems to have fixed it, I've tested with Jetty 9.4.42 and
> I can confirm that I can't reproduce it anymore.
>
> With all the successive upgrades of Jetty libs, it's difficult to determine
> which Solr version
> it started from.
> Jetty 9.4.11 seems to be good.
> Jetty 9.4.34 and 9.4.41 own the bug.
>
> Emmanuel
>
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