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https://issues.apache.org/jira/browse/HDFS-4307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534857#comment-13534857
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Hudson commented on HDFS-4307:
------------------------------

Integrated in Hadoop-Hdfs-0.23-Build #467 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/467/])
    Revert HDFS-4307 (Revision 1423066)
HDFS-4307. SocketCache should use monotonic time (Colin Patrick McCabe via 
tgraves) (Revision 1422971)

     Result = UNSTABLE
tgraves : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1423066
Files : 
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/SocketCache.java

tgraves : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1422971
Files : 
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/SocketCache.java

                
> SocketCache should use monotonic time
> -------------------------------------
>
>                 Key: HDFS-4307
>                 URL: https://issues.apache.org/jira/browse/HDFS-4307
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.3-alpha
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>             Fix For: 2.0.3-alpha
>
>         Attachments: HDFS-4307.001.patch, HDFS-4307.002.patch
>
>
> {{SocketCache}} should use monotonic time, not wall-clock time.  Otherwise, 
> if the time is adjusted by ntpd or a system administrator, sockets could be 
> either abrupbtly expired, or left in the cache indefinitely.

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