Re: Yarn scheduling

2015-05-30 Thread Roger Hoover
Garry, Thanks for the reply. My test wasn't very scientific. I scheduled 16 tasks at once on a test cluster of two nodes and when I looked at the ones running, one machine was maxed out (memory-wise) with 10 containers while the other had only 3 and was adding the remaining 3 tasks. It seemed t

RE: Yarn scheduling

2015-05-29 Thread Garry Turkington
Hi Roger, I've seen unbalanced container assignment across hosts but never one being maxed out before any others get any containers. So I'd look to the YARN config to start with. I believe though there will be a risk of this type of thing until YARN implements anti-affinity: https://issues.a