Re: Performance of mappers

2011-08-05 Thread Arun C Murthy
_0035_m_00_0 1.0% > 2011-08-05 14:33:06,625 INFO org.apache.hadoop.mapred.TaskTracker: Task > attempt_201108041814_0035_m_00_0 is done. > > Thanks > Iman > > > > From: Arun C Murthy > To: mapreduce-user@hadoop.apache.org; Iman E > Sent: Friday, August

Re: Performance of mappers

2011-08-05 Thread Milind.Bhandarkar
.apache.org>>, Iman E mailto:hadoop_...@yahoo.com>> Date: Fri, 5 Aug 2011 16:34:03 -0400 To: "mapreduce-user@hadoop.apache.org<mailto:mapreduce-user@hadoop.apache.org>" mailto:mapreduce-user@hadoop.apache.org>> Subject: Re: Performance of mappers Milind, ar

Re: Performance of mappers

2011-08-05 Thread Iman E
g; hadoop_...@yahoo.com Sent: Friday, August 5, 2011 3:47 PM Subject: Re: Performance of mappers Iman, Are you using cache archives ? If yes, what's the size of the cache archive? - milind --- --- Milind Bhandarkar Greenplum Labs, EMC (Disclaimer: Opinions expressed in this email are those of the

Re: Performance of mappers

2011-08-05 Thread Milind.Bhandarkar
Aug 2011 15:31:51 -0400 To: "mapreduce-user@hadoop.apache.org<mailto:mapreduce-user@hadoop.apache.org>" mailto:mapreduce-user@hadoop.apache.org>> Subject: Re: Performance of mappers Hi Arun, Thanks for your reply. I am running Hadoop-0.20.1 and I also tried the cloudera

Re: Performance of mappers

2011-08-05 Thread Iman E
t: Re: Performance of mappers Which release of Hadoop are you running? What do the logs on the TaskTracker tell you during the time the slow tasks are getting launched? hadoop-0.20.203 has a ton of bug fixes since hadoop-0.20.2 which help fix issues with slow launches - you might want to up

Re: Performance of mappers

2011-08-05 Thread Arun C Murthy
Which release of Hadoop are you running? What do the logs on the TaskTracker tell you during the time the slow tasks are getting launched? hadoop-0.20.203 has a ton of bug fixes since hadoop-0.20.2 which help fix issues with slow launches - you might want to upgrade. Arun On Aug 5, 2011, at 1