Zhijie Shen created YARN-3701:
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             Summary: Isolating the erro of generating a single app report when 
getting all apps from generic history service
                 Key: YARN-3701
                 URL: https://issues.apache.org/jira/browse/YARN-3701
             Project: Hadoop YARN
          Issue Type: Bug
          Components: timelineserver
            Reporter: Zhijie Shen
            Assignee: Zhijie Shen
            Priority: Blocker


Nowadays, if some error of generating a single app report when getting the 
application list from generic history service, it will throw the exception. 
Therefore, even if it just 1 out of 100 apps has something wrong, the whole app 
list is screwed. The worst impact is making the default page (app list) of GHS 
web UI crash, wile REST API /applicationhistory/apps will also break.



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