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Re: mapper combiner and partitioner for particular dataset - HDFS - [mail # user]
...The MultipleInputs class only supports mapper configuration per dataset. It does not let you specify a partitioner and combiner as well. You will need a custom written "high level" partition...
   Author: Harsh J, 2013-03-03, 11:28
Re: Urgent Requirement: How to copy File from One cluster to another cluster using java client(throught java Program) - HDFS - [mail # user]
...Samir,  It was pointed out by another member in your earlier post but here it is again. The error returned is sorta clear enough:  org.apache.hadoop.security.AccessControlException...
   Author: Harsh J, 2013-03-02, 05:45
Re: NameNode low on available disk space - HDFS - [mail # user]
...Actually, I did: http://search-hadoop.com/m/qvn7EhQQHm1. Perhaps you aren't subscribed to the lists and wouldn't have received anything sent back.   On Fri, Mar 1, 2013 at 1:21 PM, Mohi...
   Author: Harsh J, 2013-03-01, 07:54
[HDFS-4509] Provide a way to ask Balancer to exclude certain DataNodes in its computation and/or work. - HDFS - [issue]
...This comes particularly useful in clusters that have a split between DNs used for regular purpose and DNs used for HBase RSes specifically. By asking the balancer to exclude the DNs that RSe...
http://issues.apache.org/jira/browse/HDFS-4509    Author: Harsh J, 2013-02-28, 17:41
Re: hdfs.h C API - HDFS - [mail # dev]
...Hi!,  Assuming you have a "hadoop" command available (i.e. the $HADOOP_HOME/bin/hadoop script), try to do:  export CLASSPATH=`hadoop classpath`  And then try to run your ./a.o...
   Author: Harsh J, 2013-02-28, 17:29
Re: How to find Replication factor for one perticular folder in HDFS - HDFS - [mail # user]
...Its "hdfs getconf", not "hdfs -getconf". The first sub-command is not an option arg, generally, when using the hadoop/hdfs/yarn/mapred scripts.  On Wed, Feb 27, 2013 at 3:40 PM, Dhanase...
   Author: Harsh J, 2013-02-28, 06:26
Re: Errors come out when starting Balancer - HDFS - [mail # user]
...Hi,  A few points:  - The property "fs.default.name" has been deprecated in favor of the newer name "fs.defaultFS". - When using nameservice IDs, you shouldn't rely on the RPC addr...
   Author: Harsh J, 2013-02-25, 07:18
Re: One NameNode keeps Rolling Edit Log on HDFS Federation - HDFS - [mail # user]
...Could you send us the log messages (with timestamps) which you think is behind the behavior you see? The new edit log format is different than the one in 1.x, and uses several smaller edit l...
   Author: Harsh J, 2013-02-25, 07:16
[HDFS-4508] Two minor improvements to the QJM Deployment docs - HDFS - [issue]
...Suggested by ML user Azurry, the docs at http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/HDFSHighAvailabilityWithQJM.html#Deployment_details can be improved for two specif...
http://issues.apache.org/jira/browse/HDFS-4508    Author: Harsh J, 2013-02-21, 13:47
Re: How to test Hadoop MapReduce under another File System NOT HDFS - HDFS - [mail # user]
...Hi Ling,  On Thu, Feb 21, 2013 at 6:42 PM, Ling Kun  wrote:  We have several unit tests under HDFS sources (you can view it in the sources) which catch quite a bit of regressi...
   Author: Harsh J, 2013-02-21, 13:23
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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