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if i configed NN HA,should i still need start backup node? - MapReduce - [mail # user]
...ATT...
   Author: ch huang, 2013-10-29, 04:01
issue about namenode format command - MapReduce - [mail # user]
...hi,all:         i want to do namenode format in script, how can run the format command non-interactively  thanks...
   Author: ch huang, 2013-10-23, 05:31
issure about different heapsize on namenode and datanode - MapReduce - [mail # user]
...hi,all:      what i want is allocate different heap size to namenode and datanode ,so i add the following info in hadoop-env.sh file  export HADOOP_NAMENODE_OPTS="-Xmx204...
   Author: ch huang, 2013-10-18, 07:06
Re: issue about invisible data in haoop file - MapReduce - [mail # user]
...i use flume,but the is write,when it finished ,it can be see  On Wed, Sep 25, 2013 at 11:08 PM, Peyman Mohajerian wrote:  ...
   Author: ch huang, 2013-09-27, 00:29
Re: why i can not track the job which i submitted in yarn? - MapReduce - [mail # user]
...i already set this option ,this is in my mapred-site.xml,and all my hive job can be see in RM UI             mapreduce.framework.name        ...
   Author: ch huang, 2013-09-12, 00:40
which web ui can track yarn job status? - MapReduce - [mail # user]
...hi,all:           i use yarn so 50030 is not available for job status,thanks...
   Author: ch huang, 2013-09-11, 07:34
how to observe spill operation during shuffle in mapreduce? - MapReduce - [mail # user]
...hi,all:        is there any MR spill count metric?...
   Author: ch huang, 2013-09-05, 06:53
find a doc bug in description of fair-scheduler in yarn - MapReduce - [mail # user]
...here is link to the doc http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/FairScheduler.html     - yarn.scheduler.fair.minimum-allocation-mb       -...
   Author: ch huang, 2013-08-23, 02:30
question about fair scheduler - MapReduce - [mail # user]
...hi,i have a question about fair scheduler doc says "When there is a single app running, that app uses the entire cluster. When other apps are submitted, resources that free up are assigned t...
   Author: ch huang, 2013-08-23, 01:36
Is fair scheduler still experimental? - MapReduce - [mail # user]
...hi,all:           i use cdh4.3 yarn , it's default scheduler is capacity scheduler ,i want to switch to fair scheduler,but i see doc says "*NOTE:* The Fair Scheduler...
   Author: ch huang, 2013-08-23, 01:20
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