Hi Doug, I built some rudimentary (they get me what I need, though) collectors for IPMI data for Ganglia. Part of it is implemented using Python modules for greceptor, and the other part uses a cron job and a Perl script to feed Ganglia using gmetric.
I've noticed with my IPMI-enabled hardware (Sun X2200s) that there is minimal performance hit to running 'ipmitool -I open sdr elist' but it takes a few seconds guaranteed no matter what the machine is doing. However, the information I'm monitoring (fans, temperatures, etc.) don't fluctuate all that much, so I set up a cron job to write this data to a cache file, which the Perl script analyzes and relays. I've even got an RPM of it, if you want ... contact me off list and I can send it your way. cheers, Klaus On 3/24/08 10:56 AM, "Doug Nordwall" <[EMAIL PROTECTED]>did etch on stone tablets: > So, I've run into a situation where there is quite a bit of data > sitting on a lights out card that I'd like to get access to with > ganglia. Since it supports IPMI, it seems like a great option, and I'd > just use ipmitool. Every node has a lights out card, including an > admin node that can see all of it > > 1) when running ipmitool on the local host to access the IPMI from the > lights out card, it's brief (around a half a second for an sdr list), > but kind of a serious hit (upwards of 10% cpu) to the node for what > it's getting out of it. while it's not going to be accessed often > (once every 10 minutes? 5 minutes?), I'd like to avoid that. > > 2) running ipmitool from the admin node produces no noticeable impact > on the node, but sadly ganglia doesn't know that the data is coming > from somewhere else, and there doesn't appear to be any way to tell > ganglia (or gmetric for that matter) "hey, send this into the stream > as belong to something else"... i.e. host spoofing. > > anyone else run into this? anyone else using ipmi with ganglia (there > have been a few references in various googlable pdfs) that would care > to share? Or perhaps something from the ganglia-dev list that I saw > regarding it a couple months ago? > > Doug Nordwall > Unix Administrator > EMSL Computer and Network Support > Phone: (509)372-6776; Fax: (509)376-0420 > > > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
