Re: Performance of mappers

2011-08-05 Thread Iman E
author, and do not necessarily represent the views of any organization, past or present, the author might be affiliated with.) From: Iman E mailto:hadoop_...@yahoo.com>> Reply-To: "mapreduce-user@hadoop.apache.org<mailto:mapreduce-user@hadoop.apache.org>" mailto:mapred

Re: Performance of mappers

2011-08-05 Thread Iman E
INFO org.apache.hadoop.mapred.TaskTracker: attempt_201108041814_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 5, 2011 2:05 PM Subjec

Performance of mappers

2011-08-05 Thread Iman E
Hello all, I have a question regarding the mappers. I can see from the logs that the start time of the mapper is different from start time of logging. I am having a problem because that time difference sometimes is few seconds, but other times it is   For example, one mapper that is supposed to