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Data Guard Ora_tt00 process consumes High Amount Of Memory (Doc ID 2459042.1)

Last updated on JUNE 29, 2021

Applies to:

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


Problem Description
Server with 100 GB of RAM.

Redo transport worker TT00 process is consuming 26% of the total system memory.

This occurs on the primary database which has a physical standby database. 

Ultimately, this system runs out of memory and swap, then crashes. max_sga_target is 60 GB and pga_aggregate_target is 16 GB.


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