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Hadoop QA commented on YARN-514: -------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12577953/YARN-514.1.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 1 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-yarn-project/hadoop-yarn/hadoop-yarn-api hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: org.apache.hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-YARN-Build/700//testReport/ Console output: https://builds.apache.org/job/PreCommit-YARN-Build/700//console This message is automatically generated. > Delayed store operations should not result in RM unavailability for app > submission > ---------------------------------------------------------------------------------- > > Key: YARN-514 > URL: https://issues.apache.org/jira/browse/YARN-514 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Bikas Saha > Assignee: Zhijie Shen > Attachments: YARN-514.1.patch > > > Currently, app submission is the only store operation performed synchronously > because the app must be stored before the request returns with success. This > makes the RM susceptible to blocking all client threads on slow store > operations, resulting in RM being perceived as unavailable by clients. -- 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