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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5939) WebHdfs returns misleading error code and logs nothing if trying to create a file with no DNs in cluster
Date Fri, 21 Feb 2014 23:56:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13909005#comment-13909005
] 

Hadoop QA commented on HDFS-5939:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12630377/HDFS-5939.004.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 1 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:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs.

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/6207//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6207//console

This message is automatically generated.

> WebHdfs returns misleading error code and logs nothing if trying to create a file with
no DNs in cluster
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5939
>                 URL: https://issues.apache.org/jira/browse/HDFS-5939
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.3.0
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>         Attachments: HDFS-5939.001.patch, HDFS-5939.002.patch, HDFS-5939.003.patch, HDFS-5939.004.patch,
HDFS-5939.005.patch
>
>
> When trying to access hdfs via webhdfs, and when datanode is dead, user will see an exception
below without any clue that it's caused by dead datanode:
> $ curl -i -X PUT ".../webhdfs/v1/t1?op=CREATE&user.name=<userName>&overwrite=false"
> ...
> {"RemoteException":{"exception":"IllegalArgumentException","javaClassName":"java.lang.IllegalArgumentException","message":"n
must be positive"}}
> Need to fix the report to give user hint about dead datanode.



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