minnus wrote:
> I'm starting to mess with the various pcp-webjs options and have
> a few questions on using the grafana component. [...]
Very good, thanks for your interest..
> [...]
> Not sure what they are called, but for lack of a better name I
> can't get the "metric operations" to work [...]
Yes, this is documented in pmwebapi(3) and
http://oss.sgi.com/bugzilla/show_bug.cgi?id=1094 .
> 2.
> My test case is about 1 month worth of a single node's archives with
> ~200 metrics collected at 30 sec intervals (3 GB), roughly 1 file
> per day, ~30 files. [...] When editing the metrics it takes a while
> for the field to populate. [...] but it would be great to get some
> feedback that something is happening. [...]
We ship generally -unmodified- webapps, so if the normal
graphite/grafana webapp doesn't have a 'please wait ...' kind of
blinkenlight, it's not there in the pcp-webjs copy either.
> 3.
>
> I am starting to do my own testing, but has anybody done scalability
> studies? My largest dimension is going to be number of hosts. So is
> it reasonable that I could plot ~5 metrics over a day but across 100
> host archives? 1000 host archives? [...]
The largest views I've handled involved some dozens of hosts (split
over some hundreds of time-sliced archives). With the pmwebd -M
(multithreaded mode), it's behaved reasonably quickly; make sure
you're on pcp 3.10.4. How well it scales is also a function of the
web browser - so try the "png" (server-side) as well as "flot"
(browser-side) rendering options.
- FChE
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