Re: [Condor-users] Multiple masters on one machine

[Alain Roy <roy@xxxxxxxxxxx>]

> Each master should have his own directory and configuration files. The 
> configuration should almost be the same; the only differences are the 
> values for LOWPORT and HIGHPORT macros, the LOCAL_DIR and RELEASE_DIR, and 
> the COLLECTOR_NAME. Do I have to change something else?

I think that should be sufficient, except that you need to specify the 
collector port if they are both supposed to run a collector.

> 1. What could be the reason that the second condor isn't starting 
> collector and negotiator? IMHO they should start because it's (more or 
> less) the same configuration file.

In Condor, all ports are dynamic, except for the collector and negotiator. 
Those are normally 9618 and 9614.

Look at the COLLECTOR_HOST and NEGOTIATOR_HOST in your configuration file, 
and you can edit the port numbers. Here's what it says:

##  In most cases, your condor_collector and condor_negotiator are
##  going to run on the same machine.  If for some reason, this isn't
##  the case, here's where you'd change it. Also, you can change the
##  port that the collector and negotiator run on. By default, the
##  collector uses port 9618 and the negotiator uses port 9614, but
##  you can set the port with a ":port", such as:
##  COLLECTOR_HOST = $(CONDOR_HOST):1234
COLLECTOR_HOST  = $(CONDOR_HOST)
NEGOTIATOR_HOST = $(CONDOR_HOST)

You'll need to make sure that all machines in each pool know what these 
are, but putting it in their configuration files.

> 2. Is there a way to tell the clients to which master they should connect 
> if there are different masters on the same machine in the same subnet? The 
> only thing I could think of is the port setting. But I have tried this, 
> giving two clients different ports and they seem to connect to the same master.

How did you give them different ports?

If they have appropriate configuration files with COLLECTOR_HOST and 
NEGOTIATOR_HOST set correctly, it should work.

-alain