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https://issues.apache.org/jira/browse/HDFS-2525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208336#comment-13208336
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Hadoop QA commented on HDFS-2525:
---------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12514563/HDFS-2525.patch
against trunk revision .
+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 eclipse:eclipse. The patch built with eclipse:eclipse.
+1 findbugs. The patch does not introduce any 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 passed unit tests in .
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/1870//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/1870//console
This message is automatically generated.
> Race between BlockPoolSliceScanner and append
> ---------------------------------------------
>
> Key: HDFS-2525
> URL: https://issues.apache.org/jira/browse/HDFS-2525
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Todd Lipcon
> Assignee: Brandon Li
> Priority: Critical
> Attachments: HDFS-2525-branch-0.23.patch, HDFS-2525.patch
>
>
> I wrote a test which runs append() in a loop on a single file with a single
> replica, appending 0~100 bytes each time. If this races with the
> BlockPoolSliceScanner, I observe the BlockPoolSliceScanner getting FNFE, then
> reporting the block as bad to the NN. This causes the writer thread to loop
> forever on completeFile() since it doesn't see a valid replica.
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