From ti chi
> been thinking much about this and have idea ? what
> about a ?event? pmda that coordinate and forwards pmie
> exception ?events? to master server?
>
> when different customer running different pmie?s have
> a exception in their environment ? a pmie ?action? can
> forward the exception message to the event pmda that
> sends it to master server. big problem would be
> getting those events into master pmie rule engine ?
> not clear how to do but looking at pmie code.
>
> anyone tried this? do any pcp experts have thoughts
> on this?
Hm, that doesn't sound quite right. pcp/pmdas are data gathering and
pmie reads the data and makes decisions.
what sounds more appropriate is if you write an interrupt based system on
top of that. something like pmie calling a web page cgi, and that would do
other types of data consolidation, but that means writing it from scratch,
implementing your own thing, and probably not being terribly good.
now I know that you can create a consolidation pmda, to summarize a
bunch of information, but you'll need to be able to come up with a single
number that can represent the rest of the machines. that unfortunately
hides any actual issue since all you have is the summary, and not an
individual number.
It may still be good to do. that way you can at least record a "total"
number of web requests per minute or something like that. (assuming
you're monitoring the web servers with pcp.
Hm. have to think about this some more. tiering is obviously needed
for computational overhead, yet pcp doesn't really seem to know how to
do that?
- Kevin
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