[infinispan-issues] [JBoss JIRA] (ISPN-4390) CHMv8 leaks ThreadLocal

[Dan Berindei (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-4390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13188565#comment-13188565 ] 

Dan Berindei commented on ISPN-4390:
------------------------------------

I should add that our CHMv8 code comes from Doug Lea's repository, not from OpenJDK, so the original code would also also have a problem with "leaked" the {{ThreadLocal}}.

Still, I have a hunch that the non-deterministic cleanup of stale {{ThreadLocalMap}} entries isn't such a big problem when you have a limited number of {{ThreadLocals}}. It's only when the {{ThreadLocalMap}} grows very large, e.g. because we create one per cache in {{InvocationContextContainerImpl}}, that {{cleanSomeSlots()}} becomes ineffective and it takes multiple rounds to clean up the stale entries created by the previous deployment. That and maybe worker threads that don't process requests often enough :)

> CHMv8 leaks ThreadLocal
> -----------------------
>
>                 Key: ISPN-4390
>                 URL: https://issues.jboss.org/browse/ISPN-4390
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core
>            Reporter: Sanne Grinovero
>            Assignee: William Burns
>             Fix For: 8.1.4.Final, 8.2.2.Final, 9.0.0.Final
>
>
> As discussed on: http://lists.jboss.org/pipermail/infinispan-dev/2014-June/015055.html



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