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Posted to dev@hive.apache.org by "Namit Jain (JIRA)" <ji...@apache.org> on 2010/09/03 19:31:33 UTC
[jira] Resolved: (HIVE-1580) cleanup ExecDriver.progress
[ https://issues.apache.org/jira/browse/HIVE-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain resolved HIVE-1580.
------------------------------
Hadoop Flags: [Reviewed]
Fix Version/s: 0.7.0
Resolution: Fixed
Committed. Thanks Joy
> cleanup ExecDriver.progress
> ---------------------------
>
> Key: HIVE-1580
> URL: https://issues.apache.org/jira/browse/HIVE-1580
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Joydeep Sen Sarma
> Assignee: Joydeep Sen Sarma
> Fix For: 0.7.0
>
> Attachments: hive-1580.1.patch
>
>
> a few problems:
> - if a job is retired - then counters cannot be obtained and a stack trace is printed out (from history code). this confuses users
> - too many calls to getCounters. after a job has been detected to be finished - there are quite a few more calls to get the job status and the counters. we need to figure out a way to curtail this - in busy clusters the gap between the job getting finished and the hive client noticing is very perceptible and impacts user experience.
> calls to getCounters are very expensive in 0.20 as they grab a jobtracker global lock (something we have fixed internally at FB)
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