> - things you still don't understand and wish someone would explain
> 'em
regarding the section about names,
it might help to note (assuming that i'm correct) that:
- metric names do not specify the hostname or a point in time.
the hostname is implicit in which pmcd is connected to,
and the point in time is determined as part of the PMAPI request.
- most of the network protocol involves PMIDs, not metric names.
Unlike metric names, PMIDs do include the hostname [aka domain id?]
- the name-to-id mapping is accomplished by the PMNS.
in pcp 1.0, this mapping is builtin to each PMAPI client.
in pcp 2.0, the mapping for a particular host and metric name can be done
by sending a request to the host in question.
There is no network name service, and each PMID is scoped
by its host. There is nothing to ensure (or assume) that name "a.b.c"
means the same thing on host bar and baz.
-mda
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