Jeff -  that's great info, thank you.

Cheers,
Just

On 09/08/12 14:47, Jeff Gehlbach wrote:
> On 08/09/2012 06:52 AM, jcat wrote:
>
>> Do the metric aliases defined in the datacolection.xml file need to be
>> unique?
> Duplicates are legal here, but it's up to the person introducing them to
> deal with any collisions created as a result.  You will lose for sure if
> you have duplicate aliases within the same <group>.  Across groups whose
> <mibObj> children have disparate values of their "instance" attributes,
> it's probably fine to have duplicate aliases because of the way the
> collector persists data.  For scalar objects (instance="0" or another
> numeric constant) it's necessary to evaluate the likelihood that the two
> objects will ever be collected from the same node (mergers and
> acquisitions happen).
>
>> Can you confirm if this will impact the snmp-graphs at all?
> See above; every graph definition has a ".type" sub-property that (for
> the case of data collected via SNMP) maps to the value of the "instance"
> attribute of the <mibObj> whose alias(es) that graph's ".columns"
> subproperty names.  This provides a degree of collision mitigation, but
> you still need to be mindful.
>
> -jeff
>
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