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https://issues.apache.org/jira/browse/HDFS-5548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13833779#comment-13833779
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Hudson commented on HDFS-5548:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1621 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1621/])
HDFS-5548. Use ConcurrentHashMap in portmap. Contributed by Haohui Mai
(brandonli:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1545756)
*
/hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/portmap/PortmapInterface.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/portmap/PortmapRequest.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/portmap/RpcProgramPortmap.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/test/java/org/apache/hadoop/portmap/TestPortmap.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> Use ConcurrentHashMap in portmap
> --------------------------------
>
> Key: HDFS-5548
> URL: https://issues.apache.org/jira/browse/HDFS-5548
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: nfs
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Fix For: 2.2.1
>
> Attachments: HDFS-5548.000.patch, HDFS-5548.001.patch,
> HDFS-5548.002.patch, HDFS-5548.003.patch
>
>
> Portmap uses a HashMap to store the port mapping. It synchronizes the access
> of the hash map by locking itself. It can be simplified by using a
> ConcurrentHashMap.
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