For FUJITSU Enterprise Postgres 13 and later, changes kernel parameter settings for WebAdmin instance creation.

FUJITSU Enterprise Postgres 12 or earlier

Kernel Parameters	Value	Calculated Value
SHMMAX	If currentValue < calculatedValue, configure the calculated value	((1800 + 270 * max_locks_per_transaction) * max_connections + (1800 + 270 * max_locks_per_transaction) * autovacuum_max_workers + (770 + 270 * max_locks_per_transaction) * max_prepared_transactions + (shared_buffer) + (16 * 1024 * 1024) + ( 770 * 1024)) * 1.05
SHMALL	Specify currentValue + calculatedValue	(SHMMAX / PAGESIZE) + 1 PAGESIZE = 4K
SEMMNI	Specify currentValue + calculatedValue	ceil((max_connections + autovacuum_max_workers + 4) / 16)
SEMMNS	Specify currentValue + calculatedValue	ceil((max_connections + autovacuum_max_workers + 4) / 16) * 17

FUJITSU Enterprise Postgres 13 or later

Kernel Parameters	Value	Calculated Value
SHMMAX	Do not change value	-
SHMALL	Do not change value	-
SEMMNI	Specify currentValue + calculatedValue	For instances of FUJITSU Enterprise Postgres 9.5 to 11: ceil((max_connections + autovacuum_max_workers + max_worker_processes + 5) / 16) For Fujitsu Enterprise Postgres 12 and later instances: ceil((max_connections + autovacuum_max_workers + max_wal_senders + max_worker_processes + 5) / 16)
SEMMNS	Specify currentValue + calculatedValue	For instances of FUJITSU Enterprise Postgres 9.5 to 11: ceil((max_connections + autovacuum_max_workers + max_worker_processes + 5) / 16) * 17 For Fujitsu Enterprise Postgres 12 and later instances: ceil((max_connections + autovacuum_max_workers + max_wal_senders + max_worker_processes + 5) / 16) * 17

None.