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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5950) The DFSClient and DataNode should use shared memory segments to communicate short-circuit information
Date Tue, 25 Feb 2014 22:53:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13912198#comment-13912198
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Colin Patrick McCabe commented on HDFS-5950:
--------------------------------------------

The test failure was another port-in-use issue on the test node.

bq. java.net.BindException: Problem binding to [0.0.0.0:50020] java.net.BindException: Address
already in use; For more details see:  http://wiki.apache.org/hadoop/BindException

The javac warning and findbugs warnings are from the use of {{sun.misc.Unsafe}}, not real
issues

> The DFSClient and DataNode should use shared memory segments to communicate short-circuit
information
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5950
>                 URL: https://issues.apache.org/jira/browse/HDFS-5950
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, hdfs-client
>    Affects Versions: 2.4.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-5950.001.patch, HDFS-5950.003.patch, HDFS-5950.004.patch, HDFS-5950.006.patch,
HDFS-5950.007.patch
>
>
> The DFSClient and DataNode should use the shared memory segments and unified cache added
in the other HDFS-5182 subtasks to communicate short-circuit information.



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