>>> On 10/3/2008 at 12:23 PM, in message
<[EMAIL PROTECTED]>, Martin Hicks
<[EMAIL PROTECTED]> wrote:
> (sorry if this is a duplicate. I sent it yesterday but I haven't seen
> it come back yet, nor has it shown up in the mailing list archives on
> sourceforge)
>
> Hi,
>
> I backported the spoofing patches to my 3.1.1 build (I also check this
> against trunk to make sure I hadn't missed something) in order to play
> with python DSO and spoofing.
>
> I ran into a question. If you have the same metric for a bunch of
> different hosts, just with different SPOOF_HOST, then how do you tell
> the difference in the call_back? You just get the 'name', which appears
> to always be the same.
>
[SNIP]
>
> Am I expected to deal with each SPOOF_HOST when a call_back occurs for a
> particular metric name?
>
> I kind of expected SPOOF_NAME to be in the 'name' argument of the
> call_back.
>
For the spoof modules that I wrote, I appended the host name to the name of the
metric and used it as a unique metric identifier
metric_name = name + ':' + host_name
Then in the handler I just call
metric_keys = name.split(':')
and I end up with an array that uniquely identifies which metric for which
host. Finally, to make sure that the concatenation of the
metric_name:host_name does not show up in the front end as the title of the
graph, I make sure to assign a title to the metric in the gmond.conf file.
This is just one way to uniquely identify any spoofed metric. Since gmond has
no idea what a metric module is doing or what naming convention is being used,
it simply leaves all of that up to the module itself rather than trying to
enforce some policy.
Brad
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