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From "Sushanth Sowmyan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6521) WebHCat cannot fetch correct percentComplete for Hive jobs
Date Tue, 25 Mar 2014 22:55:19 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13947304#comment-13947304
] 

Sushanth Sowmyan commented on HIVE-6521:
----------------------------------------

I think there's an issue here with a unit test failure with -Phadoop-2, looking into this.

> WebHCat cannot fetch correct percentComplete for Hive jobs
> ----------------------------------------------------------
>
>                 Key: HIVE-6521
>                 URL: https://issues.apache.org/jira/browse/HIVE-6521
>             Project: Hive
>          Issue Type: Bug
>          Components: WebHCat
>    Affects Versions: 0.13.0
>            Reporter: Deepesh Khandelwal
>            Assignee: Deepesh Khandelwal
>         Attachments: HIVE-6521.2.patch, HIVE-6521.patch
>
>
> WebHCat E2E test TestHive_7 failed because percentComplete wasn't returned as expected.
> {noformat}
> check_job_percent_complete failed. got percentComplete "map 0% reduce 0%",  expected
 "map 100% reduce 100%"
> {noformat}
> So, there are two problems here.
> # The log parsing is broken for status of percentComplete. In the stderr of the job we
see:
> {noformat}
> Launching Job 1 out of 1
> Number of reduce tasks is set to 0 since there's no reduce operator
> Starting Job = job_1393486488858_0691, Tracking URL = http://ambari-sec-1393480847-others-2-4.cs1cloud.internal:8088/proxy/application_1393486488858_0691/
> Kill Command = /usr/lib/hadoop/bin/hadoop job  -kill job_1393486488858_0691
> Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 0
> 2014-02-27 18:40:50,166 Stage-1 map = 0%,  reduce = 0%
> 2014-02-27 18:40:56,599 Stage-1 map = 100%,  reduce = 0%, Cumulative CPU 0.87 sec
> 2014-02-27 18:40:57,656 Stage-1 map = 100%,  reduce = 0%, Cumulative CPU 0.87 sec
> 2014-02-27 18:40:58,706 Stage-1 map = 100%,  reduce = 0%, Cumulative CPU 0.87 sec
> MapReduce Total cumulative CPU time: 870 msec
> Ended Job = job_1393486488858_0691
> MapReduce Jobs Launched: 
> Job 0: Map: 1   Cumulative CPU: 0.87 sec   HDFS Read: 305 HDFS Write: 0 SUCCESS
> Total MapReduce CPU Time Spent: 870 msec
> {noformat}
> The assumption in the code is that the line containing the percent status will end after
"reduce = \d+%" but that fails with the above.
> # The last status from Hive job is "map = 100%,  reduce = 0%" instead of expected "map
= 100%,  reduce = 100%".



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