Re: [Condor-users] Fresh install from a newbie

[Leslie Groer <groer@xxxxxxxxxxxxxxxxxxx>]

Hi Nicolas

As a recent newbie and having gone through some of the same steps you are
going through I can let you know what I did for some of the parameters.  
Don't consider these definitive answers though as I may have got some of
this wrong!

 On Wed, 18 May 2005, Nicolas GUIOT wrote:

> OK, now everything seems fine : I tried some settings with the global
> config file, then tried to install an execute machine, but had
> especially problems with directories used (like RELEASE_DIR, LOCAL_DIR,
> etc...), that's why I'm now asking to those of you who understand my
> case...
> 
> Here are the questions : 
> In the Global config file : 
> - RELEASE_DIR : is by default set to /usr/local/condor : should I set it to the /home/condor (location of condor user's home) or /nfs/condor (the same, but accessible through NFS), or something else ?

I have this common to all nodes in our cluster installed under
/home/condor/dist.  This means I don't need a separate installation on
each node.

> - LOCAL_DIR : as is it linked to RELEASE_DIR, if it's on the NFS, that means I need a huge place (to store spool ??), right ?

This is one place the Condor manual is not explicit enough in my opinion.  
This directory really should be *LOCAL* i.e. not an NFS mounted disk.  It
also should be separate for each node.  I have ours set to /condor/ but
will probably move it to /scr/condor soon as we have a local scratch area
on each worker node.

> 
> - LOCAL_CONFG_FILE : seems to be automatically set during install...
> must it be accessible through NFS ? (in this case I have to change
> it...)

Again, all the software is linked to the /home/condor/dist area so config
files are in /home/condor/dist/etc (which means the cluster NFS server has
to be up, but nothing else will work anyway if this is down!).

> - USE_NFS : IMHO, should be True...

Correct.

> 
> - LOCK : as my LOCAL_DIR (might) is on the NFS, I should set it as
> something like /tmp/condor, right ? or any better idea ?

Again should not be on NFS but really is local.  We have /var/lock.

> - DEFAULT_DOMMAIN_NAME : should I set it to mylab.myfirm.com, or myfirm.com, or let it by default ?

Really is just a string but ensures conscistency across the nodes.

> Now, what about the local config file :
> - RELEASE_DIR : does this have to refer to /nfs/condor (the home of the condor user on the manager), or must it be a local file, or anything else ?
> - LOCAL_DIR : same question

The head nodes (CM and schedulers) use the same config files as the local 
for our cluster.

> - CONDOR_ADMIN : this was automatically set to
> root@xxxxxxxxxxxxxxxxxxxxxxxx, but it doesn't exist !! (or never
> checked...) : should I change it with the email address of condor (my
> email) ?

Set this to whatever e-mail you want to receive mail at.  Check that the
CM can actually send you mail there!

> 
> The final question is, when I setup other machines than the manager : do
> I have to create each time a /home/condor directory, and setup the
> condor client there ? do I have to configure also each time the Global
> Config file AND the Local Config file again ? Will some settings be
> automatically set by the installer ?

This is where the beauty of a single install area comes in if you have a 
shared file system.  There is almost zero setup to add a node.  Just make 
sure it has the /etc/condor_config set up and start up the daemons in 
init.d or whatever and the machines automatically are part of your pool.

Leslie

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     Leslie S. Groer