[infinispan-issues] [JBoss JIRA] (ISPN-4459) Memory leak in Hot Rod clients

[Sanne Grinovero (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-4459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sanne Grinovero updated ISPN-4459:
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    Summary: Memory leak in Hot Rod clients  (was: Memory leak in HotRod clientz)


> Memory leak in Hot Rod clients
> ------------------------------
>
>                 Key: ISPN-4459
>                 URL: https://issues.jboss.org/browse/ISPN-4459
>             Project: Infinispan
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Remote Querying, Test Suite - Server
>    Affects Versions: 7.0.0.Alpha4
>            Reporter: Dan Berindei
>            Assignee: Mircea Markus
>              Labels: testsuite_stability
>             Fix For: 7.0.0.Final
>
>         Attachments: jprofiler_screenshot.png
>
>
> Even though the HotRod client stop their servers, each test instance keeps the reference to the servers it has started (both tests extending HotRodSingleNodeTest and those extending HotRodMultiNodeTest).
> In some tests, like the remote query tests, those servers' worker threads also keep references to huge thread-local {{io.netty.buffer.PoolThreadCache}}s (see attachment). Because of this, I'm sometimes seeing an OOM in the HotRod client suite. We should either clear the server references in the tests, or clear the worker threads when shutting down the server.



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