[CentOS] Ganglia

Whit Blauvelt whit at transpect.com
Fri Jun 18 00:09:11 UTC 2010


On Fri, Jun 18, 2010 at 12:37:11AM +0100, Karanbir Singh wrote:
> On 17/06/2010 23:20, Whit Blauvelt wrote:
> > - best complied from source, there are big dependency problems with the
> >   available rpms 
> 
> I find that very hard to believe - to the extent that I don't believe
> you at all. Or did you mean to say that its not easy to locate a well
> done rpm set for ganglia ?

I should care what you believe? Stay ignorant, if you like. If not, take a
CentOS system, add the EPEL repository for ganglia, try "yum install
ganglia", and prepare to see all sorts of package conflicts. Plus it's not
the current ganglia anyway. Better to build from tar.

> I've never used ganglia in anger, but know lots and lots of people who
> do - its the most used trending tool in the hpc world.

What the heck do you mean, "used ganglia in anger"? That's just incoherent.
I'm happy with it. It's working nicely now. But the "make install" scripting
is buggy, so I posted what I've learned about working around that.

> Also, one thing you did'nt mention is that its exceptionally insecure
> out of the box, by design. Its meant to be easy to get going and
> offloads security to site and network policy since most implementations
> run on isolated management networks no where near the internet. So if
> you are using it in a situation where you care about who can connect to
> our agents and what data is seen over the wires - start by spending a
> few hours securing your install.

I did't say my notes were a full article on it! My implementation is, as you
suggest, far from the internet. I'll be happy to discuss firewalling and
network segmentation if those questions come up. 

Regards,
Whit



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