Database Error Messages

Release
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  • 23ai
  • 21c
  • 19c
Updated
Jun 24, 2024

ORA-27138

unable to allocate large pages with current parameter setting

Cause

The USE_LARGE_PAGES parameter setting was not compatible with other parameters used.


Action

Check the alert log for more information. Modify the USE_LARGE_PAGES parameter setting, or adjust the other parameters. Large pages are compatible with SGA_TARGET, SGA_MAX_SIZE and SHARED_POOL_SIZE parameters. Large pages are not / compatible with MEMORY_TARGET, MEMORY_MAX_TARGET and _DB_BLOCK_CACHE_PROTECT parameters. The database instance using Exadata storage and large System Global Area (SGA) must set USE_LARGE_PAGES to ONLY or AUTO_ONLY.