Hi Everyone,
I am looking to get some help in setting up my cluster to use interactive
sessions.
My cluster currently looks like this:
qmaster: "GridMaster" - CentOS 6.5 VM running Sons of Grid Engine 8.1.6.
execution hosts: ~40 CentOS 6.6 physical servers of varying capability.
All execd installed from GridMaster 'start_gui_installer'.
Users: Managed by FreeIPA 3.x authentication server. Each user has
passwordless SSH between hosts via public keys.
My goals:
1. A user will call something like 'qlogin -l
mf=20G,h_vmem=20G,h_rt=1:00:00' and they will be presented with a terminal
to a system with their requested resources / slots reserved.
2. If a user goes over their h_vmem or h_rt their shell will be
terminated and any processes launched from it will be terminated / cleaned
up.
3. Shell must be capable of X-forwarding.
I think my goals are achievable through some configuration of SoGE using the
qlogin wrapper script and the cgroups functions, but I am not sure how.
I was able to set up the wrapper script, but could not use the port number.
I fear it has to do with FreeIPA and their control over SSH.
--
#!/bin/sh
HOST=$1
PORT=$2
/usr/bin/ssh -Y $HOST
--
I was able to get the qlogin command working:
--
$ hostname
charmander.server.com
$ qlogin -m beas -N "grid-gui" -l mf=20G -l h_vmem=20G -l h_rt=1:00:00 -w
e
Your job 140263 ("grid-gui") has been submitted
waiting for interactive job to be scheduled ...
Your interactive job 140263 has been successfully scheduled.
Establishing /import/stargate/grid/scripts/qlogin_ssh_wrapper.sh session
to host bulbasaur.server.com ...
Warning: Permanently added 'bulbasaur.server.com' (RSA) to the list of
known hosts.
Last login: Fri Jun 5 15:59:37 2015 from charmander.server.com
-bash-4.1$ hostname
bulbasaur.server.com
--
For some reason Grid Engine seems to think the job is aborted after 60
seconds (maybe due to the port not being used?). I still have an open
terminal, and can still run anything I want, but the Grid has released the
mem_free and slots for others to use.
If anyone has advice on how I can set this up to accomplish my three goals,
it would be very much appreciated. I can post any configuration / logs /
details required.
Thanks,
-Chris Tobey
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