Memory leak from XMLType.transform

(Doc ID 1987226.1)

Last updated on MARCH 06, 2015

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 to 12.1.0.2 [Release 11.2 to 12.1]
Information in this document applies to any platform.

Symptoms

Memory usage of a session continues to go every time it calls a program that runs XMLType.transform and an INSERT in a loop.  Calling DBMS_SESSION.FREE_UNUSED_USER_MEMORY between runs of the program does not release any significant amount of memory.  A heapdump shows the "qmxxvm:subheap" heap is growing.  Memory used is released only when the session ends or terminates.

Cause

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