Re: "No response from the backend" error while connecting to postgres db

"tamanna madaan" <tamanna.madan@globallogic.com> writes:
> pg_log file logs the below messages :
> GMT FATAL:  semop(id=1310723) failed: Invalid argument
> GMT FATAL:  semctl(1310723, 7, SETVAL, 0) failed: Invalid argument
> GMT LOG:  semctl(1245185, 0, IPC_RMID, ...) failed: Invalid argument
> GMT LOG:  shmctl(2097152, 0, 0) failed: Invalid argument

It sure looks like something tried to kill off all your SysV resources
(semaphores and shared memory).  Look around and find out if anyone
was doing something with ipcrm, and take away their root privileges
if so.

            regards, tom lane