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Khaled Elmeleegy commented on MAPREDUCE-712: -------------------------------------------- Ah, I forgot to mention I turned off compression to make sure it's not a bottleneck. You can see that in the command line I used. > TextWritter example is CPU bound!! > ---------------------------------- > > Key: MAPREDUCE-712 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-712 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: task > Affects Versions: 0.20.1, 0.21.0 > Environment: ~200 nodes cluster > Each node has the following configuration: > Processors: 2 x Xeon L5420 2.50GHz (8 cores) - Harpertown C0, 64-bit, > quad-core (8 CPUs) > 4 Disks > 16 GB RAM > Linux 2.6 > Hadoop version: trunk > Reporter: Khaled Elmeleegy > > Running the RandomTextWritter example job ( from the examples jar) pegs the > machiens' CPUs. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.