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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13159) Fix potential NPE in Metrics2 source for RPC scheduler
Date Mon, 16 May 2016 19:29:12 GMT
Xiaoyu Yao created HADOOP-13159:

             Summary: Fix potential NPE in Metrics2 source for RPC scheduler
                 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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