On Wed, Oct 08, 2003 at 08:17:25AM -0500, Alain Roy wrote:
Yes, there will be no problems, you just won't start up new jobs while
there isn't a central manager.
> Just by replacing the old server with the new will the nodes - both
> submitting and executing - cope, or do I need to refig them?
As long as the name/ip hasn't changed, you won't have a problem.
Otherwise, you'll need to edit your configuration file(s) to point at
the new server and do a condor_reconfig on the nodes.
You will probably notice that it will take about five minute for
"condor_status" to regain all of knowledge it used to have about the
pool, but it will happen automatically.
> Will running jobs, queued jobs, etc continue as normal, or recover
> when the matchmaking starts again
Running jobs will continue running. Queued jobs will remain queued. If
jobs are interrupted during the outage, they will be queued then
restarted when the central manager returns.
> Or do I need to copy some server data files across to ensure continued
> service?
There is no need to do anything like that.
Actually - there are some files that you may want to copy over - on the
central manager, you probably want to save your Accountant.log and
Accountantnew.log in the $(SPOOL) directory on your central manager.
These are the files where the priority of the all of currently running
users are found. There's nothing specific in those files about what
central manager they came from, so the easiest way to migrate is to shut
down the old CM, copy those files to the new CM, and then turn the new CM.
If you're not worried about user priorities, you don't need to copy them
to the new machine. If you don't copy them, there may be a bit of
preemption in your pool for the first few rounds of matchmaking as the
negoitiator tries to figure out what's going on.
-Erik
-alain
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