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issue when use MultipleOutputs - MapReduce - [mail # dev]
...hi,maillist:             i am a newbie for MR job coding, i want to ask a questionabout using MultipleOutputs, i plan to change my workcount code and outpu...
   Author: ch huang, 2014-11-25, 09:11
question about speed up the hdfs balancer - Hadoop - [mail # user]
...hi,maillist:          i want to balancer for my HDFS cluster ,but the default speed is1M/s , i want to set the option dfs.balance.bandwidthPerSec  to 20M/s...
   Author: ch huang, 2014-11-17, 09:05
why watch count is different when use mntr and wchs command? - Zookeeper - [mail # user]
...hi,maillist:    when i use mntr i get watchcount ,but it is different with i get fromwchs ,why?# echo 'mntr' | nc 192.168.26.231 2181zk_watch_count  41# echo 'wchs' | nc ...
   Author: ch huang, 2014-11-06, 07:01
[expand - 1 more] - Re: issue about pig can not know HDFS HA configuration - Hadoop - [mail # user]
...this name is not a host name ,it is NN HA service name, behind the name ,istwo NN box, one for active node , one for standby nodeOn Wed, Nov 5, 2014 at 7:41 PM, Jagannath Naidu <[EMAIL PR...
   Author: ch huang, 2014-11-05, 13:53
issue about hive server2 heapsize tuning - Hive - [mail # user]
...hi,maillist:          i install hive-metastore and hive-server2 on one box,and i setheapsize 4096 on hive-env.shbut i only see hive-metastore use 4096m memory ,...
   Author: ch huang, 2014-10-24, 08:31
[expand - 1 more] - Re: issue about snapshot migration - HBase - [mail # user]
...no the hadoop version is different, one is hadoop-2.3.0 ,anotheris hadoop-2.0.0On Thu, Oct 23, 2014 at 10:09 AM, Ted Yu  wrote: ...
   Author: ch huang, 2014-10-24, 00:55
issue about submit job to local ,not to cluster - Hadoop - [mail # user]
...hi,maillist:       my cluster move from one IDC to another IDC ,when all done ,i runjob ,and find the job run on local box not on cluster ,why? it is normal onold IDC!&nb...
   Author: ch huang, 2014-10-21, 06:48
[expand - 1 more] - Re: can not enable snapshot function on hbase 0.94.6 - HBase - [mail # user]
...thanks for reply,but i am not deply the cluster use cloudera manager ,that's information is not applicable!On Fri, Oct 17, 2014 at 2:37 PM, ashish singhi wrote: ...
   Author: ch huang, 2014-10-20, 01:00
[expand - 3 more] - Re: how to copy data between two hdfs cluster fastly? - Hadoop - [mail # user]
...yesOn Sat, Oct 18, 2014 at 3:53 AM, Jakub Stransky wrote: ...
   Author: ch huang, 2014-10-18, 03:18
[expand - 2 more] - Re: issue about migrate hbase table from 0.94 to 0.98 - HBase - [mail # user]
...thanks,but i think u are not understand , i want to move hbase table fromone cluster to another cluster ,they have different hbase version ,i am notwant to upgrade my cluster!On Fri, Oct 17,...
   Author: ch huang, 2014-10-17, 15:22
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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