CLOUD-1540 - feat: set sample rate to be min of global and metric sample rate

[drwho725]

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[magus424]

Is there a reason for doing min, rather than just always taking the one on the individual call?

i.e. what if you wanted a global default of 50% but for one specific metric you wanted 100%?

[drwho725]

Is there a reason for doing min, rather than just always taking the one on the individual call?

i.e. what if you wanted a global default of 50% but for one specific metric you wanted 100%?

Talking with @bfeaver , if you want something that's 100% accurate (like counter) statsd isn't the solution