ORA-04031: "unable to allocate shared memory" Error When Using AMM or ASMM and Each Shared Pool Subpool Has Adequate Free Memory

(Doc ID 2382705.1)

Last updated on APRIL 06, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

When using Automatic Shared Memory Management (ASMM) or Automatic Memory Management (AMM), repeated ORA-04031 errors occur, even though each shared pool subpool has adequate free memory.

Cause

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