Hi
I am using a MR job on Hbase . I am getting this sort of error on a few
region servers. Can someone explain what this means and what should I do ?
Thanks.
12/12/26 03:03:18 INFO mapred.JobClient: Task Id :
attempt_201210121702_699686_m_46_0, Status : FAILED
Satish,
1. Please ask HBase questions on HBase's own lists (u...@hbase.apache.org).
2. Please start a new thread for new questions of yours, and not post
on an existing thread that is for some other topic.
3. The error is as it says, that your mapper could not successfully
access a specific
Thank you all. In fact, I don't expect that this way can help to enhance
the performance.
I need to process 3 different logs (with different format). I just want
to sart all these 3 logs processing at the same time , all in just this one
program. but I can give different separator to each
I suppose you could also leverage job configuration or per-input
mapper impl. via MultipleInputs to do this.
On Thu, Dec 13, 2012 at 5:44 PM, Yu Yang clouder...@gmail.com wrote:
Thank you all. In fact, I don't expect that this way can help to enhance
the performance.
I need to process 3
Exactly - A job is already designed to be properly parallel w.r.t. its
input, and this would just add additional overheads of job setup and
scheduling. If your per-record processing requires threaded work,
consider using the MultithreadedMapper/Reducer classes instead.
On Wed, Dec 12, 2012 at
