Primary process is managed with pri command.
pri
Show status of primary.
spp > pri status recv:('127.0.0.1', 50524):{Server Running}
Terminate primary.
spp > pri exit closing:('127.0.0.1', 50524)
Note
You should not use this command because terminating primary before secondaries may cause an error. You shold use bye command instead of pri exit.
bye
pri exit
Clear statistics.
spp > pri clear recv:('127.0.0.1', 50524):{clear stats}