Xuan Gong commented on YARN-3701:

Thanks for working this. [~zjshen].
The patch looks good over.
One comment: Can we do the same thing for getAppAttempts and getContainers ?

> Isolating the error 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
>         Attachments: YARN-3701.1.patch
> 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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