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From Raj V <rajv...@yahoo.com>
Subject Re: Are job statistic logs right in the 0.23 version of Hadoop?
Date Mon, 19 Dec 2011 20:22:43 GMT
Sophie 


Are the clocks in sync? Map Finish time, if I remember correctly, is reported in the task
tracker's clock. While start and finish time refer to the Job tracker's clock. If these two
are not in sync, weird things can show up.

Raj



>________________________________
> From: FujizawaMiyuki <sophiesongge@gmail.com>
>To: hadoop-user@lucene.apache.org 
>Sent: Saturday, December 17, 2011 11:53 PM
>Subject: Are job statistic logs right in the 0.23 version of Hadoop?
> 
>Hello all,
>I've found the "mapFinishTime" in the job statistic log very strange in the
>0.23 version of Hadoop.
>Sometimes the difference between "mapFinishTime" and "startTime" is
>negative. Sometimes, this difference is even bigger than the difference
>between "finishTime" and "startTime". This seems not right.
>Any one knows what happened?
>
>Thanks
>
>Sophie
>
>
>--
>View this message in context: http://lucene.472066.n3.nabble.com/Are-job-statistic-logs-right-in-the-0-23-version-of-Hadoop-tp3595256p3595256.html
>Sent from the Hadoop lucene-users mailing list archive at Nabble.com.
>
>
>

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