— pełny błąd:
2022-05-02T11:50:30.341692+02:00
Adjusting the default value of parameter parallel_max_servers
from 880 to 348 due to the value of parameter processes (500)
Starting ORACLE instance (normal) (OS id: 231844)
2022-05-02T11:50:30.362069+02:00
Sys-V shared memory will be used for creating SGA
2022-05-02T11:50:30.365273+02:00
Dump of system resources acquired for SHARED GLOBAL AREA (SGA)
2022-05-02T11:50:30.365469+02:00
Domain name: system.slice/oracle-ohasd.service
2022-05-02T11:50:30.365587+02:00
Per process system memlock (soft) limit = UNLIMITED
2022-05-02T11:50:30.365658+02:00
Expected per process system memlock (soft) limit to lock
instance MAX SHARED GLOBAL AREA (SGA) into memory: 3192M
2022-05-02T11:50:30.365765+02:00
Available system pagesizes:
4K, 2048K
2022-05-02T11:50:30.365868+02:00
Supported system pagesize(s):
2022-05-02T11:50:30.365920+02:00
PAGESIZE AVAILABLE_PAGES EXPECTED_PAGES ALLOCATED_PAGES ERROR(s)
2022-05-02T11:50:30.366069+02:00
2048K 16792 1596 1109 ORA-27125
2022-05-02T11:50:30.366123+02:00
Reason for not supporting certain system pagesizes:
2022-05-02T11:50:30.366193+02:00
4K – Large pagesizes only
2022-05-02T11:50:30.366275+02:00
SGA: Realm creation failed
–odpalamy skrypt z Doc.ID 401749.1 (najlepiej aby wszystkie instancje były odpalone):
https://support.oracle.com/epmos/faces/DocumentDisplay?parent=DOCUMENT&sourceId=361323.1&id=401749.1
[oracle@dm02 ~]$ vi hugepages_settings.sh
[oracle@dm02 ~]$ chmod +x hugepages_settings.sh
[oracle@dm02 ~]$ ./hugepages_settings.sh
Recommended setting: vm.nr_hugepages = 63488
— zalecaną wartość ustawiamy w pliku: /etc/sysctl.conf
vm.nr_hugepages=63488
— aplikujemy zmiany i sprawdzamy (najlepiej położyć wszystkie instancje DB):
sysctl -p
grep Huge /proc/meminfo