[ha-clusters-discuss] hello world & perl

[Richard Elling]

> Thorsten Frueauf wrote:
> 
> >> ideally, perl modules could be developed to
> deliver sufficient abstraction that actual agent
> development is very very simple; hiding the bulk of
> the repetitive coding you refer to.
> >
> > But then you re-invent a GDS. The language in which
> GDS is written is of minor to no interest (there is
> no advantage to have it in either C or perl) - the
> user of it should not care.
> 
> the goal isn't to reinvent GDS, the goal is to make
> sun cluster components, dials and readouts available
> "natively" inside of perl  (via modules). the scds
> stuff seemed like a reasonable starting point.

I think this is a good idea.  While I was only forced to learn
perl a few years ago, I know a lot of sys admins who prefer it.
Anything which would be more comfortable to sys admins
is a good thing.

FWIW, a lot of commonly used commands in /usr/bin and
/usr/sbin are written in perl already.

> tbh i want to see the same thing for large chunks of
> solaris:  there's some painful stuffing about needed
> to automate stuff  at the moment, and some nasty
> scripts used in places where you really want to be able
> to find errors before runtime :/

... then there is the group of customers who want to 
minimize systems and remove perl.  sigh.  Can't seem
to please everyone all of the time :-/

> >> there is probably also a role for perl integration
> for general cluster management, outside of agents;
> cluster status and so on.
> >
> > Other parts outside of agents already use perl in
> various situations (like most of the geo edition
> commands). So I have no objection to perl usage where
> it makes sense.
> 
> ..and i'm guessing they'd have been a whole lot easier
> to write if SC had already provided perl modules to fiddle
> about with.
> 
> 
> > But I personally would like to see explicit reasons
> for the benefit - instead of "it might be usefull"
> :)
> 
> this wasn't an RFE - although i believe if you look back
> far enough in the SC3 bug list you'll find RFE's requesting
> perl modules for SC access :P
> 
> i'll probably end up doing some of this myself anyway, since
> i have a  project coming up & i'm a perl bigot, but i didn't
> want to go my own way if it had already been worked on.

It will take a perl module, but once done, it should live a
long time with minimal extra work.  I think it is a great
idea, but it will take a perl bigot to make happen... Peter
you're drafted :-)
 -- richard
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