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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6061) Allow dfs.datanode.shared.file.descriptor.path to contain multiple entries and fall back when needed
Date Thu, 06 Mar 2014 07:09:43 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13922083#comment-13922083
] 

Hadoop QA commented on HDFS-6061:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12633027/HDFS-6061.002.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 2 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:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.namenode.ha.TestFailureToReadEdits
                  org.apache.hadoop.cli.TestHDFSCLI

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/6319//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6319//console

This message is automatically generated.

> Allow dfs.datanode.shared.file.descriptor.path to contain multiple entries and fall back
when needed
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6061
>                 URL: https://issues.apache.org/jira/browse/HDFS-6061
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: 2.4.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-6061.001.patch, HDFS-6061.002.patch
>
>
> In {{SharedFileDescriptorFactory}}, it would be nice if dfs.datanode.shared.file.descriptor.path
could contain multiple entries and allow fallback between them.  That way, if a user doesn't
have {{/dev/shm}} configured (the current default), the user could use {{/tmp}}.  This is
mainly a concern on BSDs and some other systems where {{/dev/shm}} doesn't exist.



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