[jira] [Closed] (FLINK-12707) Close minicluster will cause memory leak when there are StreamTask closed abnormal

["Robert Metzger (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-12707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger closed FLINK-12707.
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    Resolution: Duplicate

> Close minicluster will cause  memory leak when there are StreamTask closed abnormal
> -----------------------------------------------------------------------------------
>
>                 Key: FLINK-12707
>                 URL: https://issues.apache.org/jira/browse/FLINK-12707
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Coordination
>    Affects Versions: 1.8.0
>            Reporter: liuzhaokun
>            Assignee: liuzhaokun
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> There are several threads in my application,and every thread will launch a flink job with LocalStreamEnvironment/MiniCluster.But when I interrupt these threads again and again, I found there are many residue threads,and that caused a memory leak.
> When I debug it,this message appears "Recipient[Actor[akka://flink/user/taskmanager_0#-584606215]] had already been terminated. Sender[null] sent the message of type "org.apache.flink.runtime.rpc.messages.LocalRpcInvocation". So I think
> when flink close minicluster,TaskExecutor will be closed in the first place,and this operation will cause akka message which will close StreamTask abnormal.So the work thread will be more and more.
> I call Thread sleep in my application to avoid this problem,any good suggestions?



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