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Hadoop QA commented on YARN-1550: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12645277/YARN-1550.001.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. There were no new javadoc 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:green}+1 core tests{color}. The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-YARN-Build/3756//testReport/ Console output: https://builds.apache.org/job/PreCommit-YARN-Build/3756//console This message is automatically generated. > NPE in FairSchedulerAppsBlock#render > ------------------------------------ > > Key: YARN-1550 > URL: https://issues.apache.org/jira/browse/YARN-1550 > Project: Hadoop YARN > Issue Type: Bug > Components: scheduler > Affects Versions: 2.2.0 > Reporter: caolong > Priority: Critical > Fix For: 2.2.1 > > Attachments: YARN-1550.001.patch, YARN-1550.patch > > > three Steps : > 1、debug at RMAppManager#submitApplication after code > if (rmContext.getRMApps().putIfAbsent(applicationId, application) != > null) { > String message = "Application with id " + applicationId > + " is already present! Cannot add a duplicate!"; > LOG.warn(message); > throw RPCUtil.getRemoteException(message); > } > 2、submit one application:hadoop jar > ~/hadoop-current/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.0.0-ydh2.2.0-tests.jar > sleep -Dhadoop.job.ugi=test2,#111111 -Dmapreduce.job.queuename=p1 -m 1 -mt 1 > -r 1 > 3、go in page :http://ip:50030/cluster/scheduler and find 500 ERROR! > the log: > {noformat} > 2013-12-30 11:51:43,795 ERROR org.apache.hadoop.yarn.webapp.Dispatcher: error > handling URI: /cluster/scheduler > java.lang.reflect.InvocationTargetException > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > .... > Caused by: java.lang.NullPointerException > at > org.apache.hadoop.yarn.server.resourcemanager.webapp.FairSchedulerAppsBlock.render(FairSchedulerAppsBlock.java:96) > at > org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:66) > at > org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:76) > {noformat} -- This message was sent by Atlassian JIRA (v6.2#6252)