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Re: [Condor-users] Problem with sshd.sh, ssh-keygen and Parallel Universe

Hi Piarpaolo,

I can get an error return code of 1 if the whole directory path given to the ssh-keygen program doesn't exist, or is not writable (permissions):


ssh-keygen -q -f /tmp/junk/hostkey -t rsa -N ''

returns 1,


ssh-keygen -q -f /tmp/hostkey -t rsa -N ''

returns 0

James Burnash

-----Original Message-----
From: condor-users-bounces@xxxxxxxxxxx [mailto:condor-users-bounces@xxxxxxxxxxx] On Behalf Of Pierpaolo Minelli
Sent: Wednesday, September 16, 2009 7:46 AM
To: condor-users@xxxxxxxxxxx
Subject: [Condor-users] Problem with sshd.sh, ssh-keygen and Parallel Universe


i have a problem using mpi wrapper script on my cluster (CentOS 5.3).
Sorry for my english.
This is my cmd file:

universe = parallel
executable = mp2script
arguments = a.out
machine_count = 2
log = mpi.log.$(Process)
output = mpi.out.$(NODE).$(Process)
error = mpi.err.$(NODE).$(Process)
notification = error
should_transfer_files = yes
when_to_transfer_output = on_exit
transfer_input_files = a.out, mpd.hosts

When I submit this cmd, I obtain this error file (after inserting 'set
-x' in mp2script):

++ trap sshd_cleanup 15
+++ condor_config_val CONDOR_SSHD
++ SSHD=/usr/sbin/sshd
+++ condor_config_val CONDOR_SSH_KEYGEN
++ KEYGEN=/usr/bin/ssh-keygen
+++ condor_config_val libexec
++ CONDOR_CHIRP=/home/condor/releases/imip8.ba.imip.cnr.it/libexec
++ CONDOR_CHIRP=/home/condor/releases/imip8.ba.imip.cnr.it/libexec/
++ PORT=4444
++ _CONDOR_REMOTE_SPOOL_DIR=/home/condor/local/spool/
++ mkdir /home/condor/local/execute/dir_3412/tmp
++ hostkey=/home/condor/local/execute/dir_3412/tmp/hostkey
++ /bin/rm -f /home/condor/local/execute/dir_3412/tmp/hostkey /home/
++ /usr/bin/ssh-keygen -q -f /home/condor/local/execute/dir_3412/tmp/
hostkey -t rsa -N ''
++ '[' 1 -ne 0 ']'
++ echo ssh keygenerator /usr/bin/ssh-keygen returned error 0 exiting
++ exit -1

ssh-keygen seems not to works properly but i don't know why....

Someone can help me to solve this problem?

Best regards
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