[jira] [Created] (HADOOP-11433) Fix the new findbugs warning from NetUtils&ActiveStandbyElector

[Liang Xie (JIRA)]

Liang Xie created HADOOP-11433:
----------------------------------

             Summary: Fix the new findbugs warning from 
NetUtils&ActiveStandbyElector
                 Key: HADOOP-11433
                 URL: https://issues.apache.org/jira/browse/HADOOP-11433
             Project: Hadoop Common
          Issue Type: Improvement
          Components: ha, net
    Affects Versions: 2.7.0
            Reporter: Liang Xie
            Assignee: Liang Xie
            Priority: Minor


see 
https://builds.apache.org/job/PreCommit-HADOOP-Build/5309//artifact/patchprocess/newPatchFindbugsWarningshadoop-common.html
 :


{code}
Correctness Warnings

Code    Warning
RV      Return value of java.util.concurrent.CountDownLatch.await(long, 
TimeUnit) ignored in 
org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef.process(WatchedEvent)
Multithreaded correctness Warnings

Code    Warning
AT      Sequence of calls to java.util.concurrent.ConcurrentHashMap may not be 
atomic in org.apache.hadoop.net.NetUtils.canonicalizeHost(String)
Bug type AT_OPERATION_SEQUENCE_ON_CONCURRENT_ABSTRACTION (click for details) 
In class org.apache.hadoop.net.NetUtils
In method org.apache.hadoop.net.NetUtils.canonicalizeHost(String)
Type java.util.concurrent.ConcurrentHashMap
Called method java.util.concurrent.ConcurrentHashMap.put(Object, Object)
At NetUtils.java:[line 291]
{code}



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