Re: Slow performance on queries with aggregation function

2014-02-23 Thread Jone Lura
Hi Stephen, Thank you for your reply. It was very helpful. This weekend everything was working fine, but when I came back to the office, the performance was slow again. I checked the jobtracker and tasktracker and narrowed it down to; Shuffle Error: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-

Re: Slow performance on queries with aggregation function

2014-02-21 Thread Stephen Sprague
Hi Jone, um. i can say for sure something is wrong. :) i would _start_ by going to the tasktracker. this is your friend. find your job and look for failed reducers. That's the starting point anyway, IMHO. On Fri, Feb 21, 2014 at 11:35 AM, Jone Lura wrote: > Hi, > > I have tried some variat