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https://issues.apache.org/jira/browse/HDFS-12463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yiqun Lin reassigned HDFS-12463:
--------------------------------
Assignee: Yiqun Lin
> Ozone: Fix TestXceiverClientMetrics#testMetrics
> ------------------------------------------------
>
> Key: HDFS-12463
> URL: https://issues.apache.org/jira/browse/HDFS-12463
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Weiwei Yang
> Assignee: Yiqun Lin
> Priority: Minor
>
> {{TestXceiverClientMetrics#testMetrics}} is failing with following error in
> recent jenkins job,
> {noformat}
> java.util.ConcurrentModificationException: null
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
> at java.util.ArrayList$Itr.next(ArrayList.java:851)
> at
> org.apache.hadoop.ozone.scm.TestXceiverClientMetrics.lambda$testMetrics$2(TestXceiverClientMetrics.java:134)
> {noformat}
> looks like a non thread safe list caused this race condition in the test case.
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