Re: Fine-Grained Scheduler on Yarn

2014-08-08 Thread Sandy Ryza
> 2014/08/08 15:14 > To > Jun Feng Liu/China/IBM@IBMCN, > cc > Patrick Wendell , "dev@spark.apache.org" < > dev@spark.apache.org> > Subject > Re: Fine-Grained Scheduler on Yarn > > > > > Hi Jun, > > Spark currently doesn't have that f

Re: Fine-Grained Scheduler on Yarn

2014-08-08 Thread Jun Feng Liu
cc Patrick Wendell , "dev@spark.apache.org" Subject Re: Fine-Grained Scheduler on Yarn Hi Jun, Spark currently doesn't have that feature, i.e. it aims for a fixed number of executors per application regardless of resource usage, but it's definitely worth considering. We co

Re: Fine-Grained Scheduler on Yarn

2014-08-08 Thread Sandy Ryza
om* > [image: IBM] > > BLD 28,ZGC Software Park > No.8 Rd.Dong Bei Wang West, Dist.Haidian Beijing 100193 > China > > > > > > *Patrick Wendell >* > > 2014/08/08 13:10 > To > Jun Feng Liu/China/IBM@IBMCN, > cc > "dev@spark.apache.org&

Re: Fine-Grained Scheduler on Yarn

2014-08-07 Thread Jun Feng Liu
t; Subject Re: Fine-Grained Scheduler on Yarn Hey sorry about that - what I said was the opposite of what is true. The current YARN mode is equivalent to "coarse grained" mesos. There is no fine-grained scheduling on YARN at the moment. I'm not sure YARN supports s

Re: Fine-Grained Scheduler on Yarn

2014-08-07 Thread Patrick Wendell
Hey sorry about that - what I said was the opposite of what is true. The current YARN mode is equivalent to "coarse grained" mesos. There is no fine-grained scheduling on YARN at the moment. I'm not sure YARN supports scheduling in units other than containers. Fine-grained scheduling requires sche

Re: Fine-Grained Scheduler on Yarn

2014-08-07 Thread Patrick Wendell
The current YARN is equivalent to what is called "fine grained" mode in Mesos. The scheduling of tasks happens totally inside of the Spark driver. On Thu, Aug 7, 2014 at 7:50 PM, Jun Feng Liu wrote: > Any one know the answer? > > Best Regards > > > *Jun Feng Liu* > IBM China Systems & Technolog

Re: Fine-Grained Scheduler on Yarn

2014-08-07 Thread Jun Feng Liu
Any one know the answer? Best Regards Jun Feng Liu IBM China Systems & Technology Laboratory in Beijing Phone: 86-10-82452683 E-mail: liuj...@cn.ibm.com BLD 28,ZGC Software Park No.8 Rd.Dong Bei Wang West, Dist.Haidian Beijing 100193 China Jun Feng Liu/China/IBM 2014/08/07 15: