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MapReduce >> mail # user >> updated to 1.2.1, map completed percentage keeps oscillating


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Re: updated to 1.2.1, map completed percentage keeps oscillating
I'm assuming you are trying the same job with the same data as before. Try
taking a look at the job output for the mappers in the JobTracker. Likely
you will see some failures and probably a stack trace. When I see this
after an upgrade, it's usually because the default child opts JVM memory
size was overwritten. Check the error but review your settings too.

{map|reduce}.child.java.opts

<property>
  <name>mapred.map.child.java.opts</name>
  <value>
     -Xmx512M -Djava.library.path=/home/mycompany/lib -verbose:gc
-Xloggc:/tmp/@taskid@.gc
     -Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
  </value>
</property>

<property>
  <name>mapred.reduce.child.java.opts</name>
  <value>
     -Xmx1024M -Djava.library.path=/home/mycompany/lib -verbose:gc
-Xloggc:/tmp/@taskid@.gc
     -Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
  </value>
</property>

On Tue, Aug 13, 2013 at 9:03 PM, kaveh minooie <[EMAIL PROTECTED]> wrote:

> Hi everyone I recently updated my cluster to 1.2.1 and now the percentage
> of compeleted map tasks while the job is running keeps changing:
>
> 13/08/13 16:53:01 INFO mapred.JobClient: Running job: job_201308131452_0007
> 13/08/13 16:53:02 INFO mapred.JobClient:  map 0% reduce 0%
> 13/08/13 16:53:19 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:53:22 INFO mapred.JobClient:  map 34% reduce 0%
> 13/08/13 16:53:25 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:53:49 INFO mapred.JobClient:  map 44% reduce 0%
> 13/08/13 16:53:52 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:54:02 INFO mapred.JobClient:  map 38% reduce 0%
> 13/08/13 16:54:05 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:54:14 INFO mapred.JobClient:  map 44% reduce 0%
> 13/08/13 16:54:17 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:54:26 INFO mapred.JobClient:  map 24% reduce 0%
> 13/08/13 16:54:29 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:54:53 INFO mapred.JobClient:  map 24% reduce 0%
> 13/08/13 16:54:56 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:55:05 INFO mapred.JobClient:  map 32% reduce 0%
> 13/08/13 16:55:08 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:55:17 INFO mapred.JobClient:  map 20% reduce 0%
> 13/08/13 16:55:20 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:55:32 INFO mapred.JobClient:  map 4% reduce 0%
> 13/08/13 16:55:35 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:55:47 INFO mapred.JobClient:  map 19% reduce 0%
> 13/08/13 16:55:50 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:56:02 INFO mapred.JobClient:  map 46% reduce 0%
> 13/08/13 16:56:06 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:56:36 INFO mapred.JobClient:  map 29% reduce 0%
> 13/08/13 16:56:39 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:57:07 INFO mapred.JobClient:  map 48% reduce 0%
> 13/08/13 16:57:10 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:58:16 INFO mapred.JobClient:  map 39% reduce 0%
> 13/08/13 16:58:20 INFO mapred.JobClient:  map 2% reduce 0%
> 13/08/13 16:58:23 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:58:32 INFO mapred.JobClient:  map 44% reduce 0%
> 13/08/13 16:58:35 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:58:50 INFO mapred.JobClient:  map 18% reduce 0%
> 13/08/13 16:58:53 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:59:08 INFO mapred.JobClient:  map 16% reduce 0%
> 13/08/13 16:59:11 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:59:42 INFO mapred.JobClient:  map 18% reduce 0%
> 13/08/13 16:59:45 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 16:59:54 INFO mapred.JobClient:  map 11% reduce 0%
> 13/08/13 16:59:57 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 17:00:09 INFO mapred.JobClient:  map 33% reduce 0%
> 13/08/13 17:00:12 INFO mapred.JobClient:  map 51% reduce 0%
> 13/08/13 17:00:24 INFO mapred.JobClient:  map 39% reduce 0%
> 13/08/13 17:00:27 INFO mapred.JobClient:  map 51% reduce 0%

*
*
*
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*Adam Muise*
Solution Engineer
*Hortonworks*
[EMAIL PROTECTED]
416-417-4037

Hortonworks - Develops, Distributes and Supports Enterprise Apache
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB