My Oracle Support Banner

ORA-4031: unable to allocate bytes of shared memory shared pool FileOpenBlock (Doc ID 1482202.1)

Last updated on JULY 01, 2020

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.



Getting error ORA-4031: unable to allocate 2600 bytes of shared memory ("shared
pool","unknown object","sga heap(1,0)","FileOpenBlock").


Running following query shows shared pool memory usage increases for the FileOpenBlock objects:

select pool, name, bytes BYTES, bytes/1024/1204 MBYTES from v$sgastat where name='FileOpenBlock';



To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.