Hi Lissa,
The database is MySQL.
We are creating a postscript
that is going to be handling configuring OS settings on the node based
on various definitions, such as the profile and groups a node is a
member of. Profile is passed via the environment variables so that is
not an issue to get, it's just grabbing the groups that is.
While we
do configure SSH from the compute nodes back to the management node, I
really do not want to go that route, as several hundred compute nodes
causing SSH processes to spin up on the master node just to do a nodels
doesn't seem like the right route to go with this :)
If I can have the
compute nodes grab this information from their xcat master through the
xcatd daemon itself, that would be perfect and preferred over doing
direct MySQL queries. I agree that getting this information from xCAT
directly is better.
On 01.02.2012 09:33, Lissa Valletta wrote:
> So
what database are you running? I am not sure why you would do an SQL
>
query vs use xCAT database commands. You could pretty easy write a
script
> to get a list of all nodes using nodels and their group
accessing the
> nodelist.groups attribute. The other thing is we do not
say we will
> never change our database definitions. If you use the xCAT
commands, you
> will be immune from any changes. Not that I expect to
change this area.
>
> And no there is no supported way, to grab the
groups the nodes are in from
> the compute node, other than write your
own postscript. I am still
> curious why you need the groups on the
compute nodes.
>
> Lissa K. Valletta
> 2-3/T12
> Poughkeepsie, NY
12601
> (tie 293) 433-3102
>
> From: Russell Jones
<[email protected]>
> To: [email protected]:
01/30/2012 05:26 PM
> Subject: Re: [xcat-user] Grab groups a node is a
member of
>
> Thanks Jarrod,
>
> Can you please clarify what you mean
by "in remote"? Currently just to
> be able to continue with the script
I am creating I am doing a SQL query
> directly on the database (as the
thought of having many compute nodes
> SSH'ing to the management node to
run nodels seems more dirty).
>
> Is there a supported way of grabbing
the groups a node is a member of
> from the xcatmaster via the same way
that the compute nodes grab the
> postscripts they need to run?
>
> On
1/30/2012 4:11 PM, Jarrod B Johnson wrote:
>
>> Equivalent of
'nodelsgroups' in remote can work, it may warrant something more
special...
>
>
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