hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Pradeep Gollakota <pradeep...@gmail.com>
Subject Re: even possible?
Date Wed, 16 Oct 2013 21:38:54 GMT
Don't fix it if it ain't broken =P

There shouldn't be any reason why you couldn't change it (back) to the
standard way that cloudera distributions are set up. Off the top of my
head, I can't think of anything that you're missing. But at the same time,
if your cluster is working as is, why change it?


On Wed, Oct 16, 2013 at 2:24 PM, Patai Sangbutsarakum <
silvianhadoop@gmail.com> wrote:

> Question is on cdh3u4, the cluster was setup before I owned this cluster,
> and somehow the namenode/jobtracker/datanode/tasktracker every server
> process is run by a user named foo, and all job are launch and run by foo
> user include HDFS directories/files structure owenership, basically foo is
> everywhere.
>
> Today i start to think of trying to correct this by having
> has namenode + datanode run by hdfs user
> has jobtracker + tasktracker run by mapred user
>
> So far, i have a very short list that need to be changed, and i will try
> out in the test cluster.
> eg.
> create use hdfs, mapred every where
> ownership of dfs.name.dir, dfs.data.dir, fs.checkpoint.dir will change to
> hdfs
> ownership of mapred.local.dir, will change to mapred
> restart the cluster with hdfs for HDFS side, and mapred for MapRed side.
>
> i am 100% sure that i missed certain things that have to take care, I will
> really appreciate all the input.
>
> However, the original question i would love to ask is this even feasible
> or make sense trying to change this.
>
>
> Thanks
> P
>

Mime
View raw message