Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop >> mail # user >> M/R Staticstics

Copy link to this message
Re: M/R Staticstics
Have you enabled security?

can you share the output for your hdfs?

bin/hadoop fs -ls /

and is /tmp/hadoop-yarn/staging/history/done directory present in hdfs ? if
so then what permissions?

also please share exception stack trace...

Omkar Joshi
Hortonworks Inc
On Fri, Apr 26, 2013 at 3:05 PM, <[EMAIL PROTECTED]> wrote:

> I was able to overcome the permission exception in the log by creating an
> HDFS tmp folder (hadoop fs -mkdir /tmp) and opening it up to the world
> (hadoop fs -chmod a+rwx /tmp). That got rid of the exception put I still am
> able to connect to port 50030 to see M/R status. More ideas?
> Even though the exception was missing from the logs of one server in the
> cluster, l looked on another server and found essentially the same
> permission problem:
> 2013-04-26 13:34:56,462 FATAL
> org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer: Error starting
> JobHistoryServer
> org.apache.hadoop.yarn.YarnException: Error creating done directory:
> [hdfs://devubuntu05:9000/tmp/hadoop-yarn/staging/history/done]
>         at
> org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.init(HistoryFileManager.java:424)
>         at
> org.apache.hadoop.mapreduce.v2.hs.JobHistory.init(JobHistory.java:87)
>         at
> org.apache.hadoop.yarn.service.CompositeService.init(CompositeService.java:58)
> . . . . .
> On Fri, Apr 26, 2013 at 10:37 AM, Rishi Yadav wrote:
>   do you see "retired jobs" on job tracker page. There is also "job
> tracker history" on the bottom of page.
> something like this  *http://nn.zettabyte.com:50030/jobtracker.jsp*<http://nn.zettabyte.com:50030/jobtracker.jsp>
> Thanks and Regards,
> Rishi Yadav
> On Fri, Apr 26, 2013 at 7:36 AM, < *[EMAIL PROTECTED]*> wrote:
> When I submit a simple "Hello World" M/R job like WordCount it takes less
> than 5 seconds. The texts show numerous methods for monitoring M/R jobs as
> they are happening but I have yet to see any that show statistics about a
> job after it has completed. Obviously simple jobs that take a short amount
> of time don't allow time to fire up any web mage or monitoring tool to see
> how it progresses through the JobTracker and TaskTracker as well as which
> node it is processed on. Any suggestions on how could see this kind of data
> *after* a job has completed?