Difference between revisions of "Tutorial: Running MPI Programs on Hadoop Cluster"
(→Setup Password-Less ssh to the Hadoop cluster) |
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| − | :* Now ssh to hadoop02 and verify that you can ssh without password, as the authentication is now done through rsa keys. | + | :* Now ssh to '''hadoop02''' and verify that you can ssh without password, as the authentication is now done through rsa keys. |
| − | :* exit from hadoop02 and find yourself again on hadoop01 | + | :* exit from hadoop02 and find yourself again on '''hadoop01''' |
| − | :* repeat the last 2 commands above (ssh and cat) for hadoop03, and hadoop04. | + | :* repeat the last 2 commands above (ssh and cat) for '''hadoop03''', and '''hadoop04''': |
| − | :* verify that you can ssh to hadoop03 and hadoop04 without password. | + | <br /> |
| + | :::<source lang="text"> | ||
| + | ssh yourusername@hadoop03.dyndns.org mkdir -p .ssh | ||
| + | cat id_rsa.mpi.pub | ssh dominique@hadoop03.dyndns.org 'cat >> .ssh/authorized_keys' | ||
| + | ssh yourusername@hadoop04.dyndns.org mkdir -p .ssh | ||
| + | cat id_rsa.mpi.pub | ssh dominique@hadoop04.dyndns.org 'cat >> .ssh/authorized_keys' | ||
| + | </source> | ||
| + | <br /> | ||
| + | |||
| + | :* verify that you can ssh to '''hadoop03''' and '''hadoop04''' without password. | ||
* You should now be all set with passwordless ssh to the hadoop01, 02, 03, and 04 cluster. | * You should now be all set with passwordless ssh to the hadoop01, 02, 03, and 04 cluster. | ||
</onlysmith> | </onlysmith> | ||
Revision as of 11:08, 15 March 2017
--D. Thiebaut (talk) 13:57, 15 October 2013 (EDT)
Revised: --D. Thiebaut (talk) 12:02, 15 March 2017 (EDT)
Setup Password-Less ssh to the Hadoop cluster
Configuration
- create a file called hosts in the directory where the mpi programs are located.
- Store the following IP addresses in it:
