Streams Apply Server PGA memory usage increase when using DML Handlers in 11.2
(Doc ID 1909755.1)
Last updated on FEBRUARY 18, 2019
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 to 188.8.131.52 [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
Streams Apply servers consume increasing amounts of PGA memory over time.
The Apply process is using DML Handlers
Heap dumps generated at level 536870913 indicate the largest heap is "koh-kghu call " with the biggest memory contributors associated with
Stopping and restarting the Streams Apply process releases the memory.
The issue was not observed in 10.2.
Upgrade from 10.2 to 11.2
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In this Document