On Fri, Jun 27, 2008 at 9:15 AM, Rick Cox <[EMAIL PROTECTED]> wrote: > > Yes, mapred.tasktracker.map.tasks.maximum is configured per > tasktracker on startup. It can't be configured per job because it's > not a job-scope parameter (if there are multiple concurrent jobs, they > have to share the task limit). > > rick >
Is there a good way to discover which parameters can be configured on a job basis, vs a tasktracker or site basis? Eg I'd like to change my dfs.replication.min when I add new nodes to my cluster, if possible. Restarting dfs leaves me with namenodeId mismatches (and that's not good), so that's not really an option. Thanks! Chris -- Chris Anderson http://jchris.mfdz.com