On Thu, Dec 17, 2009 at 8:24 PM, Owen O'Malley <omal...@apache.org> wrote: > On Dec 17, 2009, at 2:06 AM, Ives Aerts wrote: ]>> Quick question: is it possible to configure a job such that its map >> tasks will only run node-local? > > No, that is currently not possible without writing your own scheduler.
Too bad. Now I wouldn't mind writing my own scheduler (or subclassing an existing one) and plugging it in but I had a quick look and it seems that an important part of the task scheduling logic is actually contained in the JobInProgress class which is instantiated by the JobTracker. So even if I replace the scheduler I won't be able to override that part of the functionality. Or am I missing something? -- Cheers, -Ives
