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

Last updated on AUGUST 08, 2012

Applies to:

Oracle Server - Enterprise Edition - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

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

High hard parsing due to FileOpenBlock eating up shared pool memory.

Query X$KSMDD for FileOpenBlock object and there will be an increase in size of this object:

select * from X$KSMDD where name='FileOpenBlock';

Cause

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