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https://issues.apache.org/jira/browse/HDFS-1085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12889443#action_12889443
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Tsz Wo (Nicholas), SZE commented on HDFS-1085:
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test-patch on h1085_20100716d.patch
{noformat}
     [exec] +1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 3 new or 
modified tests.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning 
messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number 
of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs 
warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the 
total number of release audit warnings.
{noformat}
I will wait sometime to see if Hudson would response.

> 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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