Great! I got it.
Thank you so much!
Warm regards
Arko
On Sep 26, 2011, at 10:18 PM, Subroto Sanyal <[email protected]> wrote:
> Hi Arko,
>
>
>
> Request you to look into the “userlogs” folder of the corresponding task.
>
> It will have three file sysout, syslog and syserr. Your System.out.println()
> will be captured in these files.
>
> The usual location for “userlogs” folder is “${HADOOP_LOG_DIR}/userlogs”.
>
>
>
> From MapReduce tutorial at:
> http://hadoop.apache.org/common/docs/r0.18.3/mapred_tutorial.html
>
>
>
> *The standard output (stdout) and error (stderr) streams of the task are read
> by the TaskTracker and logged to ${HADOOP_LOG_DIR}/userlogs *
>
>
>
> Regards,
> Subroto Sanyal
>
> From: Arko Provo Mukherjee [mailto:[email protected]]
> Sent: Tuesday, September 27, 2011 5:18 AM
> To: [email protected]
> Subject: System.out.println in Map / Reduce
>
>
>
> Hi,
>
>
>
> I am writing some Map Reduce programs in pseudo-distributed mode.
>
>
> I am getting some error in my program and would like to debug it.
>
>
>
> For that I want to embed some print statements in my Map / Reduce.
>
>
>
> But when I am running the mappers, the prints doesn't seem to show up in the
> terminal.
>
>
>
> Does the mappers / reducers redirect the prints to some files or are they
> suppressed or it is a problem with my program?
>
>
>
> Many thanks in advance!
>
> Thanks & regards
>
> Arko
