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Posted to mapreduce-user@hadoop.apache.org by Joan <jo...@gmail.com> on 2011/02/04 13:51:06 UTC
how to increase number of maps
Hi,
I'm running my M/R and I can see that the number of maps is only one, and if
I see the output console I can read
11/02/04 13:36:31 INFO mapreduce.Job: map 0% reduce 0%
11/02/04 13:37:33 INFO mapreduce.Job: map 1% reduce 0%
11/02/04 13:37:57 INFO mapreduce.Job: map 2% reduce 0%
11/02/04 13:38:24 INFO mapreduce.Job: map 3% reduce 0%
11/02/04 13:38:52 INFO mapreduce.Job: map 4% reduce 0%
11/02/04 13:39:28 INFO mapreduce.Job: map 5% reduce 0%
11/02/04 13:39:52 INFO mapreduce.Job: map 6% reduce 0%
11/02/04 13:40:25 INFO mapreduce.Job: map 7% reduce 0%
11/02/04 13:41:04 INFO mapreduce.Job: map 8% reduce 0%
11/02/04 13:41:25 INFO mapreduce.Job: map 9% reduce 0%
11/02/04 13:41:46 INFO mapreduce.Job: map 10% reduce 0%
11/02/04 13:42:07 INFO mapreduce.Job: map 11% reduce 0%
11/02/04 13:42:28 INFO mapreduce.Job: map 12% reduce 0%
...
Why Is mapreduce doing that?
I don't understand
I force number of maps with:
job.getConfiguration().set("mapreduce.job.maps","4");
job.getConfiguration().set("mapreduce.map.tasks","4");
But this configuration doesn't run.
Thanks joan