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issue about how to decommission a datanode from hadoop cluster - Hadoop - [mail # user]
...hi,maillist:                I use CDH4.4 yarn&hdfs cluster  ,i want to decommission adatanode ,should i modify hdfs-site.xml and mapred-xml ...
   Author: ch huang, 2014-05-30, 06:10
issue about remove yarn jobs history logs - Hadoop - [mail # user]
...hi,maillist:              i want remove jobs history logs ,and i configure thefollowing info in yarn-site.xml,but it seems no use ,why? ( i use CDH4.4...
   Author: ch huang, 2014-05-30, 02:57
question about balance info - Hadoop - [mail # user]
...hi,maillist:       when i do balance cluster , i see the following information ,i amvery confused, why the block moved from 192.168.10.36 to 192.168.10.14 ,itshould throu...
   Author: ch huang, 2014-05-29, 09:20
Re: how to save dead node when it's disk is full? - Hadoop - [mail # user]
...thanks for reply ,but my situaction is different , all the dead node diskis full,i can not move data to another empty diskOn Thu, May 29, 2014 at 8:55 AM, Ted Yu  wrote: ...
   Author: ch huang, 2014-05-29, 01:53
can i shutdown one of work node when i do cluster balance operation? - Hadoop - [mail # user]
...hi,maillist:        i want to update my some of worknode JDK version ,but the wholecluster is in balance process ,can i do it? ...
   Author: ch huang, 2014-05-28, 08:20
issue about " error: org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl: Application doesn't exist in cache appattempt_xxx" - Hadoop - [mail # user]
...hi,mailist:            i use 6-worknodes hadoop cluster ,version is CDH4.4, thecluster run 2 month with out any problem ,but today i find i can not gethive...
   Author: ch huang, 2014-05-28, 07:47
issue abount disk volume of node - Hadoop - [mail # user]
...hi,maillist:        i have a 3-datanode cluster ,with each one has 1T disk volume,recently i need run an app which need lots of disk volume, so i addanother three da...
   Author: ch huang, 2014-05-28, 00:36
should i need tune mapred.child.java.opts option if i use yarn and MRV2? - Hadoop - [mail # user]
...hi,mailist:             i want to know if this option still cause limitation in YARN? ...
   Author: ch huang, 2014-05-23, 05:58
question about NM heapsize - Hadoop - [mail # user]
...hi,maillist:    i set YARN_NODEMANAGER_HEAPSIZE=15000,so the NM run in a 15G JVM,butwhy i see web ui of yarn ,in it's Active Nodes -> Mem Avail ,only 8GB? ,why? ...
   Author: ch huang, 2014-05-23, 02:50
about hadoop upgrade - Hadoop - [mail # user]
...hi,maillist:        i want to upgrade my cluster ,in doc,one of step is backupnamenode dfs.namenode.name.dirdirectory,i have 2 directories defined in hdfs-site.xml,s...
   Author: ch huang, 2014-05-19, 10:10
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