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Re: Unable to start namenode : Address already in use - Hadoop - [mail # user]
...1) Check if by any chance process is still running by using jps -V command.2) If it is running then kill it by sudo kill -9 3) Execute name node start command again.4) Go to bottom of the na...
   Author: Chandrashekhar Kotekar, 2015-06-06, 13:35
Re: Map Reduce Help - Hadoop - [mail # user]
...Technically yes, you can keep all map reduce jobs in single jar filebecause all map reduce jobs are nothing but java classes but I think itsbetter to keep all map-reduce job isolated so that...
   Author: Chandrashekhar Kotekar, 2015-05-05, 17:02
Re: Can we control data distribution and load balancing in Hadoop Cluster? - Hadoop - [mail # user]
...Your question is very vague. Can you give us more details about the problemyou are trying to solve?Regards,Chandrash3khar KotekarMobile - +91 8600011455On Sun, May 3, 2015 at 11:59 PM, Answe...
   Author: Chandrashekhar Kotekar, 2015-05-03, 18:34
[expand - 1 more] - journal node shared edits directory should be present on HDFS or NAS or anything else? - Hadoop - [mail # user]
...Hi,I am  trying to configure name node HA and I want to further configureautomatic fail over. I am confused about '*dfs.namenode.shared.edits.dir*'configuration.Documentation says that ...
   Author: Chandrashekhar Kotekar, 2015-02-12, 11:31
Re: Adding datanodes to Hadoop cluster - Will data redistribute? - Hadoop - [mail # user]
...First confirm if new nodes are added into cluster or not. You can use"hadoop dfsadmin -report" command to check per node hdfs usage.If new nodes are listed in this command then you can run h...
   Author: Chandrashekhar Kotekar, 2015-02-08, 10:29
[expand - 1 more] - What happens to data nodes when name node has failed for long time? - Hadoop - [mail # user]
...Hi,What happens if name node has crashed for more than one hour but secondaryname node, all the data nodes, job tracker, task trackers are running fine?Do those daemon services also automati...
   Author: Chandrashekhar Kotekar, 2014-12-12, 10:58
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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