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Posted to issues@hive.apache.org by "Thejas M Nair (JIRA)" <ji...@apache.org> on 2015/06/15 21:47:00 UTC

[jira] [Updated] (HIVE-11008) webhcat GET /jobs retries on getting job details from history server is too agressive

     [ https://issues.apache.org/jira/browse/HIVE-11008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thejas M Nair updated HIVE-11008:
---------------------------------
    Attachment: HIVE-11008.1.patch

Patch from [~cwelch]


> webhcat GET /jobs retries on getting job details from history server is too agressive
> -------------------------------------------------------------------------------------
>
>                 Key: HIVE-11008
>                 URL: https://issues.apache.org/jira/browse/HIVE-11008
>             Project: Hive
>          Issue Type: Bug
>          Components: WebHCat
>    Affects Versions: 1.2.0
>            Reporter: Thejas M Nair
>            Assignee: Thejas M Nair
>         Attachments: HIVE-11008.1.patch
>
>
> Webhcat "jobs" api gets the list of jobs from RM and then gets details from history server.
> RM has a policy of retaining fixed number of jobs to accommodate for the memory it has, while HistoryServer retains jobs based on their age. As a result, jobs that RM returns might not be present in HistoryServer and can result in a failure. HistoryServer also ends up retrying on failures even if they happen because the job actually does not exist. 
> The retries to get details from HistoryServer in such cases is too aggressive.



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