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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1085) hftp read failing silently
Date Sat, 17 Jul 2010 04:43:50 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12889458#action_12889458
] 

Hadoop QA commented on HDFS-1085:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12449743/h1085_20100716d.patch
  against trunk revision 964947.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/437/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/437/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/437/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/437/console

This message is automatically generated.

> hftp read  failing silently
> ---------------------------
>
>                 Key: HDFS-1085
>                 URL: https://issues.apache.org/jira/browse/HDFS-1085
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>            Reporter: Koji Noguchi
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 0.22.0
>
>         Attachments: h1085_20100713.patch, h1085_20100716b_y0.20.1xx.patch, h1085_20100716b_y0.20.1xx_with_test.patch,
h1085_20100716c.patch, h1085_20100716c_y0.20.1xx.patch, h1085_20100716d.patch, h1085_20100716d_y0.20.1xx.patch,
h1085_20100716d_y0.20.1xx_test.patch
>
>
> When performing a massive distcp through hftp, we saw many tasks fail with 
> {quote}
> 2010-04-06 17:56:43,005 INFO org.apache.hadoop.tools.DistCp: FAIL 2010/0/part-00032 :
java.io.IOException: File size not matched: copied 193855488 bytes (184.9m) to tmpfile (=hdfs://omehost.com:8020/somepath/part-00032)
> but expected 1710327403 bytes (1.6g) from hftp://someotherhost/somepath/part-00032
>         at org.apache.hadoop.tools.DistCp$CopyFilesMapper.copy(DistCp.java:435)
>         at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:543)
>         at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:310)
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
>         at org.apache.hadoop.mapred.Child.main(Child.java:159)
> {quote}
> This means that read itself didn't fail but the resulted file was somehow smaller.

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