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https://issues.apache.org/jira/browse/HDFS-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13248405#comment-13248405
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Hadoop QA commented on HDFS-1026:
---------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12520273/HDFS-1026.pacth
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+0 tests included. The patch appears to be a documentation patch that
doesn't require 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/2212//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2212//console
This message is automatically generated.
> Quota checks fail for small files and quotas
> --------------------------------------------
>
> Key: HDFS-1026
> URL: https://issues.apache.org/jira/browse/HDFS-1026
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation, name-node
> Affects Versions: 0.20.1, 0.20.2, 0.20.3, 0.21.0, 0.22.0
> Reporter: Eli Collins
> Labels: newbie
> Attachments: HDFS-1026.pacth
>
>
> If a directory has a quota less than blockSize * numReplicas then you can't
> add a file to it, even if the file size is less than the quota. This is
> because FSDirectory#addBlock updates the count assuming at least one block is
> written in full. We don't know how much of the block will be written when
> addBlock is called and supporting such small quotas is not important so
> perhaps we should document this and log an error message instead of making
> small (blockSize * numReplicas) quotas work.
> {code}
> // check quota limits and updated space consumed
> updateCount(inodes, inodes.length-1, 0,
> fileINode.getPreferredBlockSize()*fileINode.getReplication(), true);
> {code}
> You can reproduce with the following commands:
> {code}
> $ dd if=/dev/zero of=temp bs=1000 count=64
> $ hadoop fs -mkdir /user/eli/dir
> $ hdfs dfsadmin -setSpaceQuota 191M /user/eli/dir
> $ hadoop fs -put temp /user/eli/dir # Causes DSQuotaExceededException
> {code}
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