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Re: access Permission issure - MapReduce - [mail # user]
...You will need to create a home directory for your user(s).  sudo -u hadoop hadoop fs -mkdir -p /user/dyf sudo -u hadoop hadoop fs -chown dyf:dyf /user/dyf  On Sun, Aug 4, 2013 at 7...
   Author: Harsh J, 2013-08-04, 14:07
Re: How to construct path to a HDFS dir in local host - MapReduce - [mail # user]
...Ensure you also initialize the FileSystem object (fs) against the right FS URI. It may be trying to resolve /data as a LocalFS path.  On Sat, Aug 3, 2013 at 7:08 AM, Huy Pham  wrot...
   Author: Harsh J, 2013-08-03, 17:38
Re: load properties from property file into Configuration object - MapReduce - [mail # user]
...Yes, you could use an XML file for that purpose (i.e. lots of config options) and pass it along with -conf.  On Sat, Aug 3, 2013 at 6:32 PM, Juan Pino  wrote:    Harsh J...
   Author: Harsh J, 2013-08-03, 13:23
Re: Many Standby NameNodes for QJM HA - MapReduce - [mail # user]
...You can run such a thing, but we've not tested it out extensively. One thing that comes to mind is the selection of the checkpointing service. I suppose both of the standby roles will perfor...
   Author: Harsh J, 2013-08-01, 09:58
Re: solr -Reg - MapReduce - [mail # user]
...The best place to ask questions pertaining to Solr, would be on its own lists. Head over to http://lucene.apache.org/solr/discussion.html  On Sun, Jul 28, 2013 at 11:37 AM, Venkatarami ...
   Author: Harsh J, 2013-07-28, 18:11
Re: Abstraction layer to support both YARN and Mesos - MapReduce - [mail # dev]
...Do we have a good reason to prefer Mesos over YARN for scheduling MR specifically? At what times would one prefer the other?  On Fri, Jul 26, 2013 at 11:43 AM, Tsuyoshi OZAWA  wrot...
   Author: Harsh J, 2013-07-26, 10:14
[MAPREDUCE-5288] ResourceEstimator#getEstimatedTotalMapOutputSize suffers from divide by zero issues - MapReduce - [issue]
...The computation in the above mentioned class-method is below:      long estimate = Math.round(((double)inputSize *           completedMapsOu...
http://issues.apache.org/jira/browse/MAPREDUCE-5288    Author: Harsh J, 2013-07-24, 23:26
Re: setting mapred.task.timeout programmatically from client - MapReduce - [mail # user]
...Yes, you can set it into your Job configuration object in code. If your driver uses the Tool framework, then you can also pass a -Dmapred.task.timeout=value CLI argument when invoking your p...
   Author: Harsh J, 2013-07-23, 03:15
[expand - 1 more] - Re: Namenode automatically going to safemode with 2.1.0-beta - MapReduce - [mail # user]
...Yeah I believe your /tmp was probably misbehaving somehow (running out of space or otherwise). You could log a JIRA for the "null" seen in the log though, it shouldn't have done that and sho...
   Author: Harsh J, 2013-07-20, 00:50
Re: Make job output be a comma separated file - MapReduce - [mail # user]
...Its hard to tell for sure from that snippet if you're altering the actual job configuration or a new, disconnected configuration object. You need to do the former to have it apply.  On ...
   Author: Harsh J, 2013-07-19, 02:11
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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