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https://issues.apache.org/jira/browse/HADOOP-16013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16740795#comment-16740795
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Hudson commented on HADOOP-16013:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15764 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15764/])
HADOOP-16013. DecayRpcScheduler decay thread should run as a daemon. (cliang:
rev 01cb958af44b2376bcf579cc65d90566530f733d)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/DecayRpcScheduler.java
> 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
> Fix For: 2.10.0, 3.3.0
>
> 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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