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[expand - 1 more] - Re: Distributing the code to multiple nodes - MapReduce - [mail # user]
......And do all three nodes appear in the NameNode and YARN web user interfaces? Chris On Jan 9, 2014 7:46 AM, "Ashish Jain"  wrote:  ...
   Author: Chris Mawata, 2014-01-09, 13:57
Re: /home/r9r/hadoop-2.2.0/bin/hadoop: line 133: /usr/java/default/bin/java: No such file or directory - MapReduce - [mail # user]
...What is on the system path? (what do you get at the command console type) $PATH perhaps you have  /usr/java/default/bin  in there  On 1/8/2014 3:12 PM, Allen, Ronald L. wrote:...
   Author: Chris Mawata, 2014-01-08, 23:51
Re: issue about how to assiging map output to reducer? - MapReduce - [mail # user]
...Depends on the distribution of the keys and how the partitioner is assigning keys to reducers.  (Remember that pairs with the same key have to go to the same reducer). Chris On Jan 8, 2...
   Author: Chris Mawata, 2014-01-08, 09:56
Re: Newbie: How to set up HDFS file system - MapReduce - [mail # user]
...Read as much as you can about Hadoop. Installing Hadoop will install HDFS. On Jan 7, 2014 2:03 AM, "Ashish Jain"  wrote:  ...
   Author: Chris Mawata, 2014-01-07, 13:50
Re: Write an object into hadoop hdfs issue - MapReduce - [mail # user]
...Not unique to hdfs. The same thing would happen on your local file system or anywhere and any way you store the state of the object outside of the JVM.  That is why singletons should no...
   Author: Chris Mawata, 2013-12-30, 13:35
Re: Object in mapreduce - MapReduce - [mail # user]
...Hi Unmesha,       I would take a step back and look at the big picture before  spending nights working on a non-starter. Without knowing what the  ultimate goal is I...
   Author: Chris Mawata, 2013-12-28, 13:01
Re: DataNode not starting in slave machine - MapReduce - [mail # user]
...Spelling of 'default' is probably the issue. Chris On Dec 25, 2013 7:32 AM, "Vishnu Viswanath"  wrote:  ...
   Author: Chris Mawata, 2013-12-25, 16:08
Re: libjar and Mahout - MapReduce - [mail # user]
...In your hadoop command I see a space in the part ...-core-0.9-SNAPSHOT.jar /:/apps/mahout/trunk  just after .jar Should it not be ...-core-0.9-SNAPSHOT.jar:/apps/mahout/trunk Chris &nbs...
   Author: Chris Mawata, 2013-12-21, 02:55
Re: Running Hadoop v2 clustered mode MR on an NFS mounted filesystem - MapReduce - [mail # user]
...Yong raises an important issue:  You have thrown out the I/O advantages  of HDFS and also thrown out the advantages of data locality. It would be  interesting to know why you ...
   Author: Chris Mawata, 2013-12-21, 02:36
Re:Re: Would it be possible to install two version of Hadoop on the same cluster? - MapReduce - [mail # user]
...Alternatively just configure each installation to use different directories for NameNode and DataNode data so that formatting one does not mess up the other. Chris On Dec 12, 2013 6:51 AM, "...
   Author: Chris Mawata, 2013-12-14, 03:58
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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