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Posted to common-issues@hadoop.apache.org by "Chen Liang (JIRA)" <ji...@apache.org> on 2019/01/11 20:58:00 UTC
[jira] [Comment Edited] (HADOOP-16013) DecayRpcScheduler decay
thread should run as a daemon
[ https://issues.apache.org/jira/browse/HADOOP-16013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16740778#comment-16740778 ]
Chen Liang edited comment on HADOOP-16013 at 1/11/19 8:57 PM:
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+1 on v000 patch, the failed tests seem unrelated and passed in my local run. I've committed to trunk and branch-2, thanks for the contribution [~xkrogen]!
was (Author: vagarychen):
+1 on v000 patch, the failed tests seem unrelated and passed in my local run. I've committed to trunk, thanks for the contribution [~xkrogen]!
> DecayRpcScheduler decay thread should run as a daemon
> -----------------------------------------------------
>
> Key: HADOOP-16013
> URL: https://issues.apache.org/jira/browse/HADOOP-16013
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 3.3.0
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HADOOP-16013.000.patch
>
>
> {{DecayRpcScheduler}} sets up a {{Timer}} to schedule a decay of the weights it tracks:
> {code}
> // Setup delay timer
> Timer timer = new Timer();
> DecayTask task = new DecayTask(this, timer);
> timer.scheduleAtFixedRate(task, decayPeriodMillis, decayPeriodMillis);
> {code}
> However this Timer is not set up as a daemon thread. I have seen this cause my JVM to refuse to exit when running, for example, NNThroughputBenchmark with FairCallQueue enabled.
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