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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