Collector-specific global tags

[jroyalty]

I'm using tcollector to gather metrics via many of the supplied collectors. Those collectors share a common set of global tags like: pop, networkid, etc. I'm also using tcollector to grab metrics from my custom applications. Those require a different set of global tags. So, in addition to giving tcollector a set of global tags, I'd like to specify a set of tags that are collector-specific. Said another way, I need the builtin collectors to use one set of global tags and I need to suppress those tags from being added to my custom collectors.

I can certainly specify those application tags in my custom collector, but I still have no way to prevent the global tags (necessary for the builtin collectors) from being added as well. I could also run two tcollectors, one for builtin collectors and another for my custom ones, but I'm wondering if doing this in a single tcollector is a feature others are interested in.