added complete node info to test calls

Change-Id: I999fdddc95f74da557935717807f0410f10e5d5a
timing-based affinity sorting for primary replicas

Change-Id: I8fbf01bee28efca6e81013f7e74ca00a8400318c
WIP

Change-Id: I8ed33830e2bf8e88e9621c14d3697a058af1bd8d