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Oracle database for Linux doesn't support huge page size 1GB

edited Aug 7, 2024 12:37PM in Database Administration (MOSC) 13 commentsAnswered

We are trying to start a new Oracle RDBMS enterprise edition 19c instance on a system with 1536GB RAM with 1100 huge pages size 1GB available. Configurations has been set with use_large_pages = ONLY, memlock and SGA_MAX_SIZE setting have been configured in agreement with the number of huge pages.

cat /proc/meminfo | grep Huge
AnonHugePages:         0 kB
ShmemHugePages:        0 kB
FileHugePages:         0 kB
HugePages_Total:    1100
HugePages_Free:     1100
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:    1048576 kB
Hugetlb:        1153433600 kB

Oracle doesn't start and we see from log it doesn't see the huge pages 1GB size:

2024-07-26T12:01:06.916532+02:00
Per process system memlock (soft) limit = 1100G

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