Re: Multi user Hadoop 0.20.205 ?
Hey Praveenesh, What do you mean by multiuser? Do you want to support multiple users starting/stopping daemons? -Joey On Dec 29, 2011, at 2:49, praveenesh kumar praveen...@gmail.com wrote: Guys, Did someone try this thing ? Thanks On Tue, Dec 27, 2011 at 4:36 PM, praveenesh kumar praveen...@gmail.comwrote: Hey guys, How we can make hadoop as multiuser ? One way to think as whatever group we currently assigned to use hadoop, add users to same group and change permissions to hadoop.tmp.dir, mapred.system.dir, dfs.data.dir, and what not. I was playing on hadoop 0.20.205 and I observed we can't change the permission to the above mentioned folders.. If yes, what are the best practices for making hadoop as a multi user entity, specially for hadoop 0.20.205. Thanks, Praveenesh
Re: Multi user Hadoop 0.20.205 ?
yup.. exactly that... :-) And I also want multiple users to submit jobs. Thanks, Praveenesh On Thu, Dec 29, 2011 at 4:46 PM, Joey Echeverria j...@cloudera.com wrote: Hey Praveenesh, What do you mean by multiuser? Do you want to support multiple users starting/stopping daemons? -Joey On Dec 29, 2011, at 2:49, praveenesh kumar praveen...@gmail.com wrote:. Guys, Did someone try this thing ? Thanks On Tue, Dec 27, 2011 at 4:36 PM, praveenesh kumar praveen...@gmail.com wrote: Hey guys, How we can make hadoop as multiuser ? One way to think as whatever group we currently assigned to use hadoop, add users to same group and change permissions to hadoop.tmp.dir, mapred.system.dir, dfs.data.dir, and what not. I was playing on hadoop 0.20.205 and I observed we can't change the permission to the above mentioned folders.. If yes, what are the best practices for making hadoop as a multi user entity, specially for hadoop 0.20.205. Thanks, Praveenesh
Re: Multi user Hadoop 0.20.205 ?
Why do you want multiple users starting daemons? As for submitting jobs, that should work out of the box. If you want the child JVMs running the map and reduce tasks to execute as the submitting user, then you need to configure your cluster with Kerberos. The CDH3 security guide (https://ccp.cloudera.com/display/CDHDOC/CDH3+Security+Guide) has a good tutorial that should apply to the 0.20.20x and 1.0.0 releases as well. -Joey On Dec 29, 2011, at 7:12, praveenesh kumar praveen...@gmail.com wrote: yup.. exactly that... :-) And I also want multiple users to submit jobs. Thanks, Praveenesh On Thu, Dec 29, 2011 at 4:46 PM, Joey Echeverria j...@cloudera.com wrote: Hey Praveenesh, What do you mean by multiuser? Do you want to support multiple users starting/stopping daemons? -Joey On Dec 29, 2011, at 2:49, praveenesh kumar praveen...@gmail.com wrote:. Guys, Did someone try this thing ? Thanks On Tue, Dec 27, 2011 at 4:36 PM, praveenesh kumar praveen...@gmail.com wrote: Hey guys, How we can make hadoop as multiuser ? One way to think as whatever group we currently assigned to use hadoop, add users to same group and change permissions to hadoop.tmp.dir, mapred.system.dir, dfs.data.dir, and what not. I was playing on hadoop 0.20.205 and I observed we can't change the permission to the above mentioned folders.. If yes, what are the best practices for making hadoop as a multi user entity, specially for hadoop 0.20.205. Thanks, Praveenesh
Re: Multi user Hadoop 0.20.205 ?
Guys, Did someone try this thing ? Thanks On Tue, Dec 27, 2011 at 4:36 PM, praveenesh kumar praveen...@gmail.comwrote: Hey guys, How we can make hadoop as multiuser ? One way to think as whatever group we currently assigned to use hadoop, add users to same group and change permissions to hadoop.tmp.dir, mapred.system.dir, dfs.data.dir, and what not. I was playing on hadoop 0.20.205 and I observed we can't change the permission to the above mentioned folders.. If yes, what are the best practices for making hadoop as a multi user entity, specially for hadoop 0.20.205. Thanks, Praveenesh
Multi user Hadoop 0.20.205 ?
Hey guys, How we can make hadoop as multiuser ? One way to think as whatever group we currently assigned to use hadoop, add users to same group and change permissions to hadoop.tmp.dir, mapred.system.dir, dfs.data.dir, and what not. I was playing on hadoop 0.20.205 and I observed we can't change the permission to the above mentioned folders.. If yes, what are the best practices for making hadoop as a multi user entity, specially for hadoop 0.20.205. Thanks, Praveenesh
