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From Shi Yu <sh...@uchicago.edu>
Subject Reduce progress goes backward?
Date Tue, 01 Feb 2011 19:17:30 GMT
Hi,

I observe that sometimes the map/reduce progress is going backward. What 
does this mean?


11/02/01 12:57:51 INFO mapred.JobClient:  map 100% reduce 99%
11/02/01 12:59:14 INFO mapred.JobClient:  map 100% reduce 98%
11/02/01 12:59:45 INFO mapred.JobClient:  map 100% reduce 99%
11/02/01 13:03:24 INFO mapred.JobClient:  map 100% reduce 98%
11/02/01 13:09:16 INFO mapred.JobClient:  map 100% reduce 97%
11/02/01 13:09:19 INFO mapred.JobClient:  map 100% reduce 96%
11/02/01 13:11:14 INFO mapred.JobClient:  map 100% reduce 97%
11/02/01 13:12:33 INFO mapred.JobClient:  map 100% reduce 96%
11/02/01 13:13:05 INFO mapred.JobClient:  map 100% reduce 95%


Shi


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