Re: [HTCondor-users] Self Update

[John Wong <gokoproject@xxxxxxxxx>]

I see. I see the concern. I will let others knowledgable to answer that. But I do recommend t sme pont check out those tools. They exist for the deployment configuration. The former two are for large scale and the last is really easy to pick up.

Good luck.

On Saturday, April 27, 2013, Tiago Macarios wrote:

Hum interesting tools, but not quite what i meant.

What I was thinking was actually using condor itself for the deployment.

On Fri, Apr 26, 2013 at 8:53 PM, John Wong <gokoproject@xxxxxxxxx> wrote:

Hi,

The first thing comes to my mind is when do you see this " < "? Job submission? Or during system configuration?

If the latter, you are advised to look at automated configuration tool such as Puppet, Chef, Salt, or Ansible. I use the last one and it is very easy to setup. All of them support "master-slave" pull mode, which means periodically they can contact each other find out whether the underlying system requires update.

Master: think of workstation, has a damon contacting other nodes (condor master, condor slaves) periodically

Slaves: also has daemon that answers question/ask question.

Ansible, which I recommend, by default does not run in this pull mode. It's a push, but Ansible supports pull.

Right now, push is good enough for my lab's setup. Every week I go on the temrinal, type in a command and the command will fire up multiple SSH connections to multiple machines, and "reconfigure" each machine. Note reconfiguration has to satisfy idempotence law. If condor version  == the one in the update script, no change. If < update. 

IIs this what you are looking for?

John

On Fri, Apr 26, 2013 at 11:45 PM, Tiago Macarios <tiagomacarios@xxxxxxxxx> wrote:

If condor version < some specific condor version:

    download and install specific condor version

On Fri, Apr 26, 2013 at 8:19 PM, John Wong <gokoproject@xxxxxxxxx> wrote:

What do you mean by self update?

On Fri, Apr 26, 2013 at 11:18 PM, Tiago Macarios <tiagomacarios@xxxxxxxxx> wrote:

Hi,

Just wondering how difficult would it be to have condor to self update? (only windows, by now)

I guess condor itself could not do that since the files would be in use. So the simplest option I can think of is having condor to run some kind of executable that would kill condor, update and restart it. Not sure if it is that straight forward, so before I try anything. Have anyone tried doing something like this?

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