start on multiple replicas

Signed-off-by: James Paton <jpaton2@gmail.com>
disable checkpointing

Signed-off-by: James Paton <jpaton2@gmail.com>
use first replica

Signed-off-by: James Paton <jpaton2@gmail.com>
implemented socket data ready callback

Signed-off-by: James Paton <jpaton2@gmail.com>