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https://issues.apache.org/jira/browse/HDFS-2759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193501#comment-13193501
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Hadoop QA commented on HDFS-2759:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12511911/HDFS-2759.patch
against trunk revision .
+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 appears to have generated 21 warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 eclipse:eclipse. The patch built with eclipse:eclipse.
-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 unit tests:
org.apache.hadoop.hdfs.server.namenode.TestEditLogFileOutputStream
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/1812//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/1812//artifact/trunk/hadoop-hdfs-project/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/1812//console
This message is automatically generated.
> Pre-allocate HDFS edit log files after writing version number
> -------------------------------------------------------------
>
> Key: HDFS-2759
> URL: https://issues.apache.org/jira/browse/HDFS-2759
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha, name-node
> Affects Versions: 0.24.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-2759.patch
>
>
> In HDFS-2709 it was discovered that there's a potential race wherein edits
> log files are pre-allocated before the version number is written into the
> header of the file. This can cause the NameNode to read an invalid HDFS
> layout version, and hence fail to read the edit log file. We should write the
> header, then pre-allocate the rest of the file after this point.
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