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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2015/06/16 02:37:00 UTC
[jira] [Commented] (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:comment-tabpanel&focusedCommentId=14587229#comment-14587229 ]
Eugene Koifman commented on HIVE-11008:
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there are 2 places where StatusDelegator.run() is called Server.showJobList() and Server.showJobId().
Don't we need the same logic in both places?
Can the setting of the 2 properties be moved into StatusDelegator.run() just before
ShimLoader.getHadoopShims().getWebHCatShim()?
> 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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