On Tue, Oct 18, 2011 at 6:31 PM, Arun C Murthy <[email protected]> wrote: > The CS has always treated rack-local same as node-local... so yes, the > current behaviour is expected.
Hrm - never knew that -- I'm usually a fairscheduler user, and the FS does do delay scheduling for both types of locality. What was the logic that lead to this decision? A small amount of delay for node locality seems worth it, especially on small clusters (<40 nodes) with 1gbit networking. If there's no particular reason against it, I'll file a JIRA to add it as an option. -Todd -- Todd Lipcon Software Engineer, Cloudera
