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https://issues.apache.org/jira/browse/HADOOP-5859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716086#action_12716086
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Kan Zhang commented on HADOOP-5859:
-----------------------------------

my local hdfs unit tests passed. here is the test-patch result.
{noformat}
     [exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     -1 tests included.  The patch doesn't appear to include any new 
or modified tests.
     [exec]                         Please justify why no tests are needed for 
this patch.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning 
messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number 
of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs 
warnings.
     [exec] 
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath 
integrity.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the 
total number of release audit warnings.
{noformat}


> FindBugs : fix "wait() or sleep() with locks held" warnings in hdfs
> -------------------------------------------------------------------
>
>                 Key: HADOOP-5859
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5859
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>         Attachments: 5859-21.patch, 5859-22.patch, 5859-26.patch, 
> 5859-33.patch, 5859-35.patch, 5859-36.patch, 5859-38.patch, 5859-4.patch, 
> 5859-40.patch, 5859-41.patch, 5859-5.patch, 5859-8.patch
>
>
> This JIRA fixes the following warnings:
> SWL   org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.closeInternal() calls 
> Thread.sleep() with a lock held
> TLW   wait() with two locks held in 
> org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.flushInternal()
> TLW   wait() with two locks held in 
> org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.flushInternal()
> TLW   wait() with two locks held in 
> org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.writeChunk(byte[], int, int, 
> byte[])

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