ENG-11705: DR consumer interface cleanup (#4184)
ENG-11705: DR consumer interface cleanup (#4184)


simonzhangsm/voltdb,VoltDB/voltdb,deerwalk/voltdb,migue/voltdb,deerwalk/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,deerwalk/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,migue/voltdb,VoltDB/voltdb,migue/voltdb,VoltDB/voltdb,migue/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,deerwalk/voltdb,VoltDB/voltdb,VoltDB/voltdb,migue/voltdb,deerwalk/voltdb,migue/voltdb,simonzhangsm/voltdb,migue/voltdb,deerwalk/voltdb,migue/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb