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Zhijie Shen updated YARN-2900: ------------------------------ Attachment: YARN-2900.20150529.patch [~mitdesai], thanks for the last patch, but I realize that there's one behavior change w.r.t letting ApplicationHistoryManagerOnTimelineStore return null instead of throwing exception. Before the patch, when we get an attempt or a container, we will signal different exception to let user know if the app is completely missing or we just don't fine the particular attempt or container. So I create another patch that retains your test cases, but fix 500->404 problem by mapping the not found exception to 404 in web services class, which should be more lightweight. [~xgong], can you take a look at this patch too? Another issue is {{java.lang.IllegalStateException: STREAM}} that I observed during my local test. It seems not to be caused by this Jira, but to be an existing problem when YARN web app returns 404 and accepts XML content. I could see both RM and ATS REST API are encountering the same issue. I filed a separate Jira for it: YARN-3746 > Application (Attempt and Container) Not Found in AHS results in Internal > Server Error (500) > ------------------------------------------------------------------------------------------- > > Key: YARN-2900 > URL: https://issues.apache.org/jira/browse/YARN-2900 > Project: Hadoop YARN > Issue Type: Sub-task > Components: timelineserver > Reporter: Jonathan Eagles > Assignee: Mit Desai > Attachments: YARN-2900-b2-2.patch, YARN-2900-b2.patch, > YARN-2900.20150529.patch, YARN-2900.patch, YARN-2900.patch, YARN-2900.patch, > YARN-2900.patch, YARN-2900.patch, YARN-2900.patch, YARN-2900.patch, > YARN-2900.patch > > > Caused by: java.lang.NullPointerException > at > org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerImpl.convertToApplicationReport(ApplicationHistoryManagerImpl.java:128) > at > org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerImpl.getApplication(ApplicationHistoryManagerImpl.java:118) > at > org.apache.hadoop.yarn.server.webapp.WebServices$2.run(WebServices.java:222) > at > org.apache.hadoop.yarn.server.webapp.WebServices$2.run(WebServices.java:219) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1679) > at > org.apache.hadoop.yarn.server.webapp.WebServices.getApp(WebServices.java:218) > ... 59 more -- This message was sent by Atlassian JIRA (v6.3.4#6332)