ORA-4036 Raised When Querying V$UNIFIED_AUDIT_TRAIL (Doc ID 2104796.1)

Last updated on FEBRUARY 12, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.1 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.

Symptoms

Querying V$UNIFIED_AUDIT_TRAIL to fetch the unified audit records returns:

ORA-4036: PGA memory used by the instance exceeds PGA_AGGREGATE_LIMIT


A memory leak is observed every time a select query is fired on V$UNIFIED_AUDIT_TRAIL.
If you keep querying from V$UNIFIED_AUDIT_TRAIL repeatedly in a session (see example below), we get ORA-4036 at times this memory leak hits the PGA_AGGREGATE_LIMIT value:

 

Cause

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