Re: [Ganglia-general] What are the rrdtool creation parameters forGanglia Databases?

[<Ric...@ba...>]

Ian,

it is unclear what you are really trying to do.

Do you want a complete normal running ganglia with some separate
java rrd4j thing able to separately extract/graph rrd data popupulated
by ganglia?

If so, the key data source to parse is connecting to
the gmetad server's port 8651 which dumps the current grid state as XML.

Or do you want to replace 1 or more ganglia components?

Or... ?

Richard=20


> -----Original Message-----
> From: gan...@li...=20
> [mailto:gan...@li...] On=20
> Behalf Of Ian Wootten
> Sent: 26 January 2007 16:46
> To: gan...@li...
> Subject: [Ganglia-general] What are the rrdtool creation=20
> parameters forGanglia Databases?
>=20
>=20
> Hi all,
>=20
> I want to replicate ganglia's storage in Java, using a multicast=20
> listener, storing and manipulating using rrd4j. Firstly has=20
> anyone done=20
> anything similar? I'm struggling knowing what parameters to=20
> set for the=20
> database and getting an adequate resolution of the metrics=20
> captured from=20
> multicast (10-30s for the application I desire). Does anyone=20
> know what=20
> the datasource and archive creation commands would be/how=20
> many there are?
>=20
> Secondly, and I think this is the main thing, the capture of=20
> information=20
> seems to take ages to be recieved in this way. I'm aware of=20
> the MonaLISA=20
> project and their java interfaces into ganglia, but a similar=20
> implementation by myself seems extremely slow. Currently=20
> packets seem to=20
> be retrieved at a rate of 1 a second, with each packet containing a=20
> single metric value - I'd like to have a complete set after 10 or so=20
> seconds.Would I be better off sticking to my current method of=20
> interfacing with ganglia's rrd databases directly and=20
> extracting content=20
> via the fetch command?
>=20
> Thanks,
>=20
> Ian
>=20
>=20
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