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https://issues.apache.org/jira/browse/HDFS-7718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313396#comment-14313396
 ] 

Hadoop QA commented on HDFS-7718:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12697385/HDFS-7718.3.patch
  against trunk revision aab459c.

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 6 new 
or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with 
eclipse:eclipse.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 1 new 
Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in 
hadoop-hdfs-project/hadoop-hdfs.

Test results: 
https://builds.apache.org/job/PreCommit-HDFS-Build/9502//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HDFS-Build/9502//artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9502//console

This message is automatically generated.

> DFSClient objects created by AbstractFileSystem objects created by 
> FileContext are not closed and results in thread leakage
> ---------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7718
>                 URL: https://issues.apache.org/jira/browse/HDFS-7718
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: HDFS-7718.1.patch, HDFS-7718.2.patch, HDFS-7718.3.patch, 
> HDFS-7718.3.patch
>
>
> Currently, the {{FileContext}} class used by clients such as (for eg. 
> {{YARNRunner}}) creates a new {{AbstractFilesystem}} object on 
> initialization.. which creates a new {{DFSClient}} object.. which in turn 
> creates a KeyProvider object.. If Encryption is turned on, and https is 
> turned on, the keyprovider implementation (the {{KMSClientProvider}}) will 
> create a {{ReloadingX509TrustManager}} thread per instance... which are never 
> killed and can lead to a thread leak



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