MMON Trace File Growing Bigger
(Doc ID 1992338.1)
Last updated on JANUARY 16, 2020
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
MMON trace may grow without any control due memory resize operations.
The mmon trace file will be growing beyound limits and resulting into unwanted trace generation in terms of several thousands of MB or even into more than 1 GB.
In one case, a customer even reported a size of more than 3 GB:
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