I am getting this very specific error:
debug1: ssh_exchange_identification: /usr/sbin/sshd: error while loading shared
libraries: libselinux.so.1: failed to map segment from shared object
However, ssh works fine outside of qrsh. Every single test succeeds, from all
nodes to all nodes.
Mfg,
Juan Jimenez
System Administrator, BIH HPC Cluster
MDC Berlin / IT-Dept.
Tel.: +49 30 9406 2800
On 29.05.17, 16:39, "Reuti" <re...@staff.uni-marburg.de> wrote:
> Am 29.05.2017 um 16:08 schrieb juanesteban.jime...@mdc-berlin.de:
>
> Out of the blue, qrsh refuses to work. It will not allow me to connect to
any node, but ssh works fine from all nodes to all nodes. ???
>
> [jjimene@med-login2 bin]$ qrsh -verbose
> Your job 4909901 ("QRLOGIN") has been submitted
> waiting for interactive job to be scheduled ...
> Your interactive job 4909901 has been successfully scheduled.
> Establishing /usr/bin/ssh -Y -A session to host med0241 ...
> ssh_exchange_identification: read: Connection reset by peer
> /usr/bin/ssh -Y -A exited with exit code 255
So, you are using SSH and not the built-in communication.
How is the authentication set up – hostbased or ssh-keys?
Was any of the packages updated on either side?
> [jjimene@med-login2 bin]$ ssh med0241
> Last login: Mon May 29 15:53:20 2017 from med-qmaster.mdc-berlin.net
>
> What could be causing this?
Any firewall in place? The SSH login by SGE will use a random port, not
necessarily 22.
-- Reuti
> Again, the fact that qrsh does not make any effort to tell me where the
error is coming from is making debugging this harder than necessary. How can I
tell qrsh to pass -vvvv to the ssh call and give me access to the resulting log?
>
> Mfg,
> Juan Jimenez
> System Administrator, HPC
> MDC Berlin / IT-Dept.
> Tel.: +49 30 9406 2800
> _______________________________________________
> SGE-discuss mailing list
> SGE-discuss@liv.ac.uk
> https://arc.liv.ac.uk/mailman/listinfo/sge-discuss
>
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