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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5548) Use ConcurrentHashMap in portmap
Date Tue, 26 Nov 2013 18:26:41 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Li updated HDFS-5548:
-----------------------------

    Attachment: HDFS-5548.003.patch

Upload the committed patch, which has trivial difference with different debug level in a couple
places.

> 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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