[GE users] ssh key problems

Schenker, Martin MSchenker at illumina.com
Thu Mar 8 15:47:15 GMT 2007

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Hi all!

I've got a very strange problem here. It might be a very basic thing, but two people here are quite stumped by this.

We've got 16 nodes running on 6u8 (upgrade on 6u10 is planned but not yet done). node1-10 were set up by someone else, who left now. They are running fine.

Now nodes 11-16 have been delivered and need to be intergrated into the single queue we're running. I followed the instructions, created ssh and rss keys for all the new nodes, ran the install_execd script on each of those. I can see the nodes via qstat and qmon, they seem to be fine. But any job submitted to the new nodes fails with a "host key verification error". 

Manually I can ssh without a password prompt between the nodes (as the same user GE is running). 

We're running "Using ssh with qrsh and qlogin" http://gridengine.sunsource.net/howto/qrsh_qlogin_ssh.html

from qconf -mconf

rlogin_daemon                /usr/sbin/sshd -i
max_aj_instances             2000
max_aj_tasks                 75000
max_u_jobs                   0
max_jobs                     0
auto_user_oticket            0
auto_user_fshare             0
auto_user_default_project    none
auto_user_delete_time        86400
delegated_file_staging       false
reprioritize                 false
rsh_daemon                   /usr/sbin/sshd -i
rsh_command                  /usr/bin/ssh
rlogin_command               /usr/bin/ssh

Is there something I can test? I'm pretty sure it's a stupid simple thing we're overlooking...

Cheers for any pointers! 


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