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Re: Tutorials that work with modern Hadoop (v1.x.y)? - MapReduce - [mail # user]
...1.x isn't an ultra modern version. It revises over the 0.20.x releases, which many books carried, and they may still be valid. 2.x is the next major version after 0.20.x/1.x.  The numbe...
   Author: Harsh J, 2013-08-27, 22:42
Re: libjars error - MapReduce - [mail # user]
...You're not using the configuration provided by the ToolRunner instantiation:  Change:  Job job = new Job();  To:  Job job = new Job(getConf());  On Wed, Aug 28, 2013...
   Author: Harsh J, 2013-08-27, 22:39
Re: Namenode joining error in HA configuration - MapReduce - [mail # user]
...What OS are you starting this on?  Are you able to run the command "df -k /tmp/hadoop-hadoop/dfs/name/" as user "hadoop"?  On Wed, Aug 28, 2013 at 12:53 AM, orahad bigdata  wr...
   Author: Harsh J, 2013-08-27, 22:36
Re: Hadoop Conf properties - MapReduce - [mail # user]
...There isn't a major difference between 1.x releases enough to warrant a specific configuration change as the release is mostly a minor upgrade (as compared to upgrading to 2.x). If you are l...
   Author: Harsh J, 2013-08-27, 05:14
Re: hadoop debugging tools - MapReduce - [mail # user]
...We set a part of the failure reason as the diagnostic message for a failed task that a JobClient API retrieves/can retrieve: http://hadoop.apache.org/docs/current/api/org/apache/hadoop/mapre...
   Author: Harsh J, 2013-08-27, 05:12
[expand - 1 more] - Re: 1.2.1 ouput, what is bufvoid - MapReduce - [mail # user]
...The length printed there is the # of elements in an internal array, not a data size length. If you wish to raise that you can raise up io.sort.spill.percent (default 0.80, or 80%).  On ...
   Author: Harsh J, 2013-08-26, 22:51
Re: HDFS Startup Failure due to dfs.namenode.rpc-address and Shared Edits Directory - MapReduce - [mail # user]
...It is not quite from your post, so a Q: Do you intend to use HA or not?  Can you share your complete core-site.xml and hdfs-site.xml along with a brief note on the deployment?  On ...
   Author: Harsh J, 2013-08-26, 22:11
Re: running map tasks in remote node - MapReduce - [mail # user]
...In a multi-node mode, MR requires a distributed filesystem (such as HDFS) to be able to run.  On Sun, Aug 25, 2013 at 7:59 PM, rab ra  wrote:    Harsh J...
   Author: Harsh J, 2013-08-25, 15:06
Re: Pig upgrade - MapReduce - [mail # user]
...Sorry but that's no excuse to mailing the wrong list. You did get a response however, if you care to check: http://search-hadoop.com/m/XkQIy1PuPlh2&subj=Re+Pig+upgrade  On Sat, Aug 24, ...
   Author: Harsh J, 2013-08-24, 15:33
Re: Passing parameters to MapReduce through Oozie - MapReduce - [mail # user]
...If you use mapreduce-action, then is the configuration lookup done within a Mapper/Reducer? If so, how are you grabbing the configuration object? Via the overridden "configure(JobConf conf)"...
   Author: Harsh J, 2013-08-24, 00:54
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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