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Hadoop QA commented on HDFS-4849: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12587387/idempotentCreate.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 2 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:red}-1 core tests{color}. The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs: org.apache.hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks org.apache.hadoop.hdfs.qjournal.client.TestQuorumJournalManager {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/4509//testReport/ Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4509//console This message is automatically generated. > Idempotent create and append operations. > ---------------------------------------- > > Key: HDFS-4849 > URL: https://issues.apache.org/jira/browse/HDFS-4849 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Affects Versions: 2.0.4-alpha > Reporter: Konstantin Shvachko > Assignee: Konstantin Shvachko > Attachments: idempotentCreate.patch, idempotentCreate.patch > > > create, append and delete operations can be made idempotent. This will reduce > chances for a job or other app failures when NN fails over. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira