"surabhi.ahuja" <surabhi.ahuja@xxxxxxxxxxx> writes: > if postmaster is running and i do, > kill -9 -1 > i.e. i did abrupt shut down > i am not able to start postmaster What happens exactly when you try --- what error messages does it print? What method are you using to try to start the postmaster (pg_ctl, some init script (whose), etc)? The reasons I know about for failure to restart in this situation include * you forgot to kill all the postmaster child processes too; * you didn't remove the shared memory segment and/or semaphores, and the system's SysV limits are too small to let a new postmaster create a whole duplicate set. None of these things have anything to do with what happens in a real system crash. regards, tom lane
