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https://issues.apache.org/jira/browse/HADOOP-13159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaoyu Yao updated HADOOP-13159:
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Summary: Fix potential NPE in Metrics2 source for DecayRpcScheduler (was:
Fix potential NPE in Metrics2 source for RPC scheduler)
> Fix potential NPE in Metrics2 source for DecayRpcScheduler
> ----------------------------------------------------------
>
> Key: HADOOP-13159
> URL: https://issues.apache.org/jira/browse/HADOOP-13159
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.8.0
> Reporter: Xiaoyu Yao
> Assignee: Xiaoyu Yao
>
> HADOOP-12985 introduced a few metrics2 counters for DecayRpcScheduler. The
> counters should be initialized before the updater thread is created/executed.
> Otherwise, this is a chance of NPE if the updater thread get executed before
> the counters are fully initialized. I will post a patch for it shortly.
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