My Oracle Support Banner

Streams Apply Servers Consume Excessive PGA Memory when Using a Statement DML Handler (Doc ID 1527049.1)

Last updated on FEBRUARY 03, 2019

Applies to:

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


The PGA memory consumption of the Apply server processes is excessive when using a statement DML Handler which is utilzing :lcr.KEEP_COLUMNS.

This memory consumption affects the throughput of the system. When the Apply is stopped and restarted the throughput of the system returns to an acceptable level.

The Apply server processes spend a lot of time allocating memory as per the
following stack


Leading to the following accumulation of freeable PGA memory associated with
kol vstring


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.