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Posted to common-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2017/04/19 22:45:05 UTC
[jira] [Commented] (HADOOP-14329) Thread leakage in Hadoop
RollingAverages metric collection
[ https://issues.apache.org/jira/browse/HADOOP-14329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15975682#comment-15975682 ]
Andrew Wang commented on HADOOP-14329:
--------------------------------------
[~xyao] could you take a look at this? Looks like this class was added by HDFS-10917 which you worked on.
> Thread leakage in Hadoop RollingAverages metric collection
> ----------------------------------------------------------
>
> Key: HADOOP-14329
> URL: https://issues.apache.org/jira/browse/HADOOP-14329
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 3.0.0-alpha2
> Reporter: Hrishikesh Gadre
> Priority: Minor
> Labels: newbie
>
> The rolling averages metric implementation defines a static ScheduledExecutorService instance which is not shutdown properly. This results in leaking the corresponding thread. This issue was identified while testing Solr/Hadoop 3 integration.
> Here is the relevant portion of the code involved,
> https://github.com/apache/hadoop/blob/c1549352cf1d1b1b45d7b613f993d45649b8efcf/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/RollingAverages.java#L65
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