Here are my kernel settings
kernel.shmmax = 10737418240
# Maximum total size of all shared memory segments in pages (normally 4096 bytes)
kernel.shmall = 2621440
kernel.sem = 250 32000 32 1200
They are actually set...
sysctl -a | grep shm
kernel.shmmax = 10737418240
kernel.shmall = 2621440
kernel.shmmni = 4096
To reduce the request size [FAILently 2232950784 bytes), reduce PostgreSQL's shared memory usage,
Dave Cramer