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Posted to common-issues@hadoop.apache.org by "Hrishikesh Gadre (JIRA)" <ji...@apache.org> on 2017/04/19 22:12:41 UTC

[jira] [Created] (HADOOP-14329) Thread leakage in Hadoop RollingAverages metric collection

Hrishikesh Gadre created HADOOP-14329:
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             Summary: 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


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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