My Oracle Support Banner

ODA Default OS Console Loglevel Change in /proc/sys/kernel from [ 4 4 1 7 ] to [ 10 4 1 7 ] Increasing Printed Messages Into the Kernel Logs Impacting Performance (Doc ID 2376989.1)

Last updated on APRIL 08, 2019

Applies to:

Oracle Database Appliance X4-2 - Version All Versions to All Versions [Release All Releases]
Oracle Database Appliance X7-2 HA Hardware - Version All Versions and later
Information in this document applies to any platform.

Symptoms

NOTE: This problem is Linux OS generic.
While this example will discuss the ODA, the symptoms are possible on most any Linux configuration.
The more servers and devices, the more potential for excessive overhead and performance impact due to this logging.

Example

Changes

The problem only happened after an upgrade of their several ODAs to 12.1.2.8 and higher.
Initial assessment of several ODA hardware versions from 12.1.2.7 to 12.1.2.12 almost all included non-default settings which appear to be introduced as part of the patching.

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.