Please reply if you use Mesos fine grained mode

2015-11-03 Thread Reynold Xin
If you are using Spark with Mesos fine grained mode, can you please respond to this email explaining why you use it over the coarse grained mode? Thanks.

Re: Please reply if you use Mesos fine grained mode

2015-11-03 Thread Jerry Lam
We "used" Spark on Mesos to build interactive data analysis platform because the interactive session could be long and might not use Spark for the entire session. It is very wasteful of resources if we used the coarse-grained mode because it keeps resource for the entire session. Therefore,

Re: Please reply if you use Mesos fine grained mode

2015-11-03 Thread Soren Macbeth
we use fine-grained mode. coarse-grained mode keeps JVMs around which often leads to OOMs, which in turn kill the entire executor, causing entire stages to be retried. In fine-grained mode, only the task fails and subsequently gets retried without taking out an entire stage or worse. On Tue, Nov

Re: Please reply if you use Mesos fine grained mode

2015-11-03 Thread Reynold Xin
Soren, If I understand how Mesos works correctly, even the fine grained mode keeps the JVMs around? On Tue, Nov 3, 2015 at 4:22 PM, Soren Macbeth wrote: > we use fine-grained mode. coarse-grained mode keeps JVMs around which > often leads to OOMs, which in turn kill the

Re: Please reply if you use Mesos fine grained mode

2015-11-03 Thread Timothy Chen
Fine grain mode does reuse the same JVM but perhaps different placement or different allocated cores comparing to the same total memory allocation. Tim Sent from my iPhone > On Nov 3, 2015, at 6:00 PM, Reynold Xin wrote: > > Soren, > > If I understand how Mesos works

Re: Please reply if you use Mesos fine grained mode

2015-11-03 Thread MEETHU MATHEW
Hi, We are using Mesos fine grained mode because we can have multiple instances of spark to share machines and each application get resources dynamically allocated.  Thanks & Regards,  Meethu M On Wednesday, 4 November 2015 5:24 AM, Reynold Xin wrote: If you