how to know which part of the explain plan my MR job is running?

[Yang <te...@gmail.com>]

now my pig script is stuck at one of the MR jobs, in reduce stage,
it stayed in reducing state for 30minutes without much progress.

now, to debug this, how could I determine which part of the explain plan
represents
this MR job?


Thanks!
Yang

Re: how to know which part of the explain plan my MR job is running?

[Bill Graham <bi...@gmail.com>]

>From the JT you can open the job confs and search for pig.alias and
pig.feature (from memory).

Or you can start you pig script with Ambrose, which will launch a web UI
that shows script progress wrt the various jobs.

http://github.com/twitter/ambrose

On Sunday, June 24, 2012, Yang wrote:

> now my pig script is stuck at one of the MR jobs, in reduce stage,
> it stayed in reducing state for 30minutes without much progress.
>
> now, to debug this, how could I determine which part of the explain plan
> represents
> this MR job?
>
>
> Thanks!
> Yang
>


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