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https://issues.apache.org/jira/browse/HDFS-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041987#comment-13041987
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Hadoop QA commented on HDFS-2021:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12481034/HDFS-2021.patch
against trunk revision 1129942.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
+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 appears to introduce 1 new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed these core unit tests:
org.apache.hadoop.hdfs.server.namenode.TestBlockTokenWithDFS
org.apache.hadoop.hdfs.TestDatanodeDeath
org.apache.hadoop.hdfs.TestDFSUpgradeFromImage
org.apache.hadoop.hdfs.TestReplaceDatanodeOnFailure
+1 contrib tests. The patch passed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results:
https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/670//testReport/
Findbugs warnings:
https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/670//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/670//console
This message is automatically generated.
> HDFS Junit test TestWriteRead failed with inconsistent visible length of a
> file
> --------------------------------------------------------------------------------
>
> Key: HDFS-2021
> URL: https://issues.apache.org/jira/browse/HDFS-2021
> Project: Hadoop HDFS
> Issue Type: Bug
> Environment: Linux RHEL5
> Reporter: CW Chung
> Assignee: John George
> Priority: Minor
> Attachments: HDFS-2021.patch
>
>
> The junit test failed when iterates a number of times with larger chunk size
> on Linux. Once a while, the visible number of bytes seen by a reader is
> slightly less than what was supposed to be.
> When run with the following parameter, it failed more often on Linux ( as
> reported by John George) than my Mac:
> private static final int WR_NTIMES = 300;
> private static final int WR_CHUNK_SIZE = 10000;
> Adding more debugging output to the source, this is a sample of the output:
> Caused by: java.io.IOException: readData mismatch in byte read:
> expected=2770000 ; got 2765312
> at
> org.apache.hadoop.hdfs.TestWriteRead.readData(TestWriteRead.java:141)
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