map task number is not decided by the resources you need. It's decided by something else.
Regards, *Stanley Shi,* On Wed, Apr 2, 2014 at 9:08 AM, Libo Yu <yu_l...@hotmail.com> wrote: > Hi all, > > I pretty much use the default yarn setting to run a word count example on > a 3 node cluster. Here are my settings: > yarn.nodemanager.resource.memory-mb 8192 > yarn.scheduler.minimum-allocation-mb 1024 > yarn.scheduler.maximum-allocation-vcores 32 > > I would expect to see 8192/1024 * 3 = 24 map tasks. > However, I see 32 map tasks. Anybody knows why? Thanks. > > Libo > >
