wy92

#### Description since every kafka client operation(produce/consume/...) will refresh metadata when the operation was failed, and retry the operation when client get metadata success. why not just set Config.Metadata.Full to...

https://github.com/github/brubeck/blob/master/src/samplers/statsd.c#L56 ` for (i = 0; i < SIM_PACKETS; ++i) { `