Re: [HTCondor-users] Self Update

[Ziliang Guo <ziliang@xxxxxxxxxxx>]

Having HTCondor go behind the back of Windows to dump updated binaries
would not be a good idea. If you had originally installed HTCondor
using the msi installer, Windows would get thoroughly confused with
the changed binaries. In addition, due to the way Windows locks files
that have been opened, you cannot overwrite/remove them while they are
in use. To overwrite the HTCondor binaries, you would end up having to
shut down the HTCondor service, which kills any jobs being run, so
HTCondor cannot bootstrap itself. If you want some kind of auto-update
on Windows, you'd need to work through the mechanisms Windows has,
such as group policy. Linux has its own solutions as others have
mentioned.

On Fri, Apr 26, 2013 at 11:05 PM, John Wong <gokoproject@xxxxxxxxx> wrote:
> 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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>
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