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https://issues.apache.org/jira/browse/FLINK-23091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17367495#comment-17367495
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Etienne Chauchot commented on FLINK-23091:
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One added reason for migrating is also a security fix present in akka 2.6.14:
https://akka.io/blog/news/2021/04/08/akka-2.6.14-released
> Bump Akka to 2.6
> ----------------
>
> Key: FLINK-23091
> URL: https://issues.apache.org/jira/browse/FLINK-23091
> Project: Flink
> Issue Type: Sub-task
> Components: Build System, Runtime / Coordination
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Major
> Fix For: 1.14.0
>
>
> When loading akka 2.5 through a separate classloader a leak occurs because
> akka 2.5 contains a custom ForkJoinPool implementation with a ThreadLocal,
> which results in a ClassLoaderLeak if any outside thread touches this
> implementation.
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