MessageConductor: more evenly distribute messages to partitions
MessageConductor: more evenly distribute messages to partitions

Tapjoy/poseidon,apptentive-engineering/poseidon,SponsorPay/poseidon,codeclimate/poseidon,airbnb/poseidon,nepalez/poseidon,Shopify/poseidon,gjackson12/poseidon,chingor13/poseidon,bpot/poseidon,ListenFirstMedia/poseidon