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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
[expand - 1 more] - 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
question about search log use yarn command - Hadoop - [mail # user]
...hi,mailist:          doc say          $ $HADOOP_YARN_HOME/bin/yarn logsRetrieve logs for completed YARN applications.usage: yarn l...
   Author: ch huang, 2014-05-16, 22:47
issue about joblistcache - Hadoop - [mail # user]
...hi,maillist:         i see lot's of information from yarn jobhistory server says  ,where is the JobListCache  location?"2014-05-15 15:15:30,758 WARNorg.apa...
   Author: ch huang, 2014-05-16, 16:52
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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