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In 10-nodes cluster ,how many zookeeper quorum should i need? - MapReduce - [mail # user]
...ATT...
   Author: ch huang, 2013-08-12, 01:53
problem about DN&NM directory design - MapReduce - [mail # user]
...hi,all:        i plan to put DN together with NM, i want to use 2*1TB disk , one disk mount on /data/1 and another mount on /data/2  and i set dfs.datanode.data.dir ...
   Author: ch huang, 2013-08-09, 02:07
Re: is RM require a lot of memory? - MapReduce - [mail # user]
...so ,from performance aspect i need seperate RN with NN,because each of them is memory hungry  On Fri, Aug 9, 2013 at 8:00 AM, Marcos Luis Ortiz Valmaseda  wrote:  ...
2 emails [+ more]    Author: ch huang, 2013-08-09, 00:54
is it ok? build hadoop cluster on kvm on product envionment? - MapReduce - [mail # user]
...hi,all: my company has not much burget for boxes,if i build cluster on kvm ,it will cause a lot of impact on performance??...
   Author: ch huang, 2013-08-08, 05:30
issue about try lzo in hadoop - MapReduce - [mail # user]
...i use yarn ,and hadoop version is CDH4.3, lzo installed,but when i run test ,it failed,why?  # sudo -u hdfs hadoop jar /usr/lib/hadoop/lib/hadoop-lzo-cdh4-0.4.15-gplextras.jar com.hadoo...
   Author: ch huang, 2013-08-06, 06:39
about monitor metrics in hadoop - MapReduce - [mail # user]
...hi,all:         i installed yarn ,no mapreducev1 install,and it have no /etc/hadoop/conf/hadoop-env.sh file exist, i use openTSDB to monitor my cluster,and need some opti...
   Author: ch huang, 2013-08-05, 06:08
Re: test lzo problem in hadoop - MapReduce - [mail # user]
...that's ok ,but why i can not use com.hadoop.compression.lzo.DistributedLzoIndexer ?  # hadoop jar /usr/lib/hadoop/lib/hadoop-lzo-0.4.15.jar com.hadoop.compression.lzo.LzoIndexer  /...
   Author: ch huang, 2013-08-02, 01:12
hadoop missing file? - MapReduce - [mail # user]
...one of my workmate told me some of his file missing ,i use fs check find following info , how can i prevent  them from missing? anyone can help me?  Status: HEALTHY  Total siz...
   Author: ch huang, 2013-07-30, 06:54
two name node both in standby state?why? - MapReduce - [mail # user]
...i have no idea,why?  2013-07-26 22:55:30,772 INFO org.apache.hadoop.http.HttpServer: Jetty bound to port 50070 2013-07-26 22:55:30,772 INFO org.mortbay.log: jetty-6.1.26.cloudera.2 2013...
   Author: ch huang, 2013-07-26, 07:04
Re: problem about starting datanode - MapReduce - [mail # user]
...that's no use i find problem in 2 name node  .web.resources, pathSpec=/webhdfs/v1/* 2013-07-26 22:55:30,772 INFO org.apache.hadoop.http.HttpServer: Jetty bound to port 50070 2013-07-26 ...
2 emails [+ more]    Author: ch huang, 2013-07-26, 07:03
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