Are you sure the job is running on the cluster and not running in single node mode? This happens a lot... On Oct 9, 2011 7:50 AM, "Rita" <[email protected]> wrote:
> Hi, > > I have been doing a rowcount via mapreduce and its taking about 4-5 hours > to > count a 500million rows in a table. I was wondering if there are any map > reduce tunings I can do so it will go much faster. > > I have 10 node cluster, each node with 8CPUs with 64GB of memory. Any > tuning > advice would be much appreciated. > > > -- > --- Get your facts first, then you can distort them as you please.-- >
