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https://issues.apache.org/jira/browse/HDFS-1521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006458#comment-13006458
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Hadoop QA commented on HDFS-1521:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12473549/HDFS-1521.diff
against trunk revision 1080836.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 15 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 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 failed these core unit tests:
org.apache.hadoop.hdfs.TestFileAppend4
org.apache.hadoop.hdfs.TestLargeBlock
org.apache.hadoop.hdfs.TestWriteConfigurationToDFS
-1 contrib tests. The patch failed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results:
https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/256//testReport/
Findbugs warnings:
https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/256//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/256//console
This message is automatically generated.
> Persist transaction ID on disk between NN restarts
> --------------------------------------------------
>
> Key: HDFS-1521
> URL: https://issues.apache.org/jira/browse/HDFS-1521
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: FSImageFormat.patch, HDFS-1521.diff, HDFS-1521.diff,
> HDFS-1521.diff, HDFS-1521.diff, hdfs-1521.3.txt, hdfs-1521.4.txt,
> hdfs-1521.5.txt, hdfs-1521.txt, hdfs-1521.txt, hdfs-1521.txt
>
>
> For HDFS-1073 and other future work, we'd like to have the concept of a
> transaction ID that is persisted on disk with the image/edits. We already
> have this concept in the NameNode but it resets to 0 on restart. We can also
> use this txid to replace the _checkpointTime_ field, I believe.
--
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