[client] enable aggregation by default #158
Merged
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This change will set aggregation for simple types by default, this would reduce the overall packet traffic to the server. The goal is to reduce the overall load on the dogstatsd client-server environments. Aggregation comes with a slight overhead on the client side, but it's clearly offset by the gains on the server side.
Please note that this PR has the effect of making metric submission with sample rates ineffectual as they make no sense in the context of metric aggregation. In practice, the metric is just aggregated and the sampling is just ignored.