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https://issues.apache.org/jira/browse/HDFS-1257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084420#comment-13084420
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Hadoop QA commented on HDFS-1257:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12490289/HDFS-1257.2.20110812.patch
against trunk revision 1157232.
+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 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.server.blockmanagement.TestReplicationPolicy
org.apache.hadoop.hdfs.server.namenode.TestCheckpoint
org.apache.hadoop.hdfs.server.namenode.TestNNThroughputBenchmark
org.apache.hadoop.hdfs.server.namenode.TestValidateConfigurationSettings
org.apache.hadoop.hdfs.TestHDFSServerPorts
+1 contrib tests. The patch passed contrib unit tests.
-1 system test framework. The patch failed system test framework compile.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/1101//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/1101//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/1101//console
This message is automatically generated.
> Race condition on FSNamesystem#recentInvalidateSets introduced by HADOOP-5124
> -----------------------------------------------------------------------------
>
> Key: HDFS-1257
> URL: https://issues.apache.org/jira/browse/HDFS-1257
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.23.0
> Reporter: Ramkumar Vadali
> Assignee: Eric Payne
> Fix For: 0.23.0
>
> Attachments: HDFS-1257.1.20110810.patch, HDFS-1257.2.20110812.patch,
> HDFS-1257.patch
>
>
> HADOOP-5124 provided some improvements to FSNamesystem#recentInvalidateSets.
> But it introduced unprotected access to the data structure
> recentInvalidateSets. Specifically, FSNamesystem.computeInvalidateWork
> accesses recentInvalidateSets without read-lock protection. If there is
> concurrent activity (like reducing replication on a file) that adds to
> recentInvalidateSets, the name-node crashes with a
> ConcurrentModificationException.
--
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