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https://issues.apache.org/jira/browse/LIVY-973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Asif Khatri updated LIVY-973:
-----------------------------
Affects Version/s: 0.7.0
> Always close RSCClient's EventLoopGroup
> ---------------------------------------
>
> Key: LIVY-973
> URL: https://issues.apache.org/jira/browse/LIVY-973
> Project: Livy
> Issue Type: Bug
> Components: Interpreter, Server
> Affects Versions: 0.6.0, 0.7.0, 0.8.0
> Reporter: Asif Khatri
> Assignee: Asif Khatri
> Priority: Major
> Fix For: 0.8.0
>
>
> Livy server is going unresponsive after consuming/hitting the max configured
> open file descriptor limit. The issue observed with RSCClient's
> EventLoopGroup.
> {{The `setFailure()` of a job promise before the `shutdownGracefully()` can
> end up in an `IllegalStateException` preventing the graceful shutdown:}}
> {{java.lang.IllegalStateException: complete already:
> DefaultPromise@185d2680(failure: [java.io|http://java.io/].IOException: Child
> process exited with code 1.) at
> io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112)
> at org.apache.livy.rsc.JobHandleImpl.setFailure(JobHandleImpl.java:101) at
> org.apache.livy.rsc.RSCClient.stop(RSCClient.java:264) at
> org.apache.livy.rsc.RSCClient.connectionError(RSCClient.java:171) at
> org.apache.livy.rsc.RSCClient.access$200(RSCClient.java:52) at
> org.apache.livy.rsc.RSCClient$1.onFailure(RSCClient.java:108) at
> org.apache.livy.rsc.Utils$2.operationComplete(Utils.java:108) at
> io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578)
> at
> io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571)
> at
> io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550)
> at
> io.netty.util.concurrent.DefaultPromise.access$200(DefaultPromise.java:35) at
> io.netty.util.concurrent.DefaultPromise$1.run(DefaultPromise.java:502) at
> io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) at
> io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)}}
>
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