db_exec: use SIGUSR2 instead of SIGUSR1 (debugger)
db_exec: use SIGUSR2 instead of SIGUSR1 (debugger)

Netsend/persdb,Netsend/PerspectiveDB,Netsend/PerspectiveDB,Netsend/persdb,Netsend/persdb,Netsend/PerspectiveDB