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Oracle Trace File Analyzer (TFA) netdiag Service Causes High %SYS CPU Utilisation (Doc ID 3032171.1)

Last updated on OCTOBER 08, 2024

Applies to:

Linux OS - Version Oracle Linux 8.9 and later
Linux x86-64

Symptoms

An Oracle Exadata system running image version 23.1.13 / kernel-uek-5.4.17-2136.322.6.4.el8uek.x86_64 periodically experiences high %sys CPU utilization. The problem is not caused by the Exadata image version but just TFA v24.2. So it may affect OL7 as well as OL8
Exawatcher top output denotes high %sys CPU utilization with the systemd process running close to 100% CPU utilization.

Changes

TFA version 24.2 introduces the netdiag service:
- https://docs.oracle.com/en/engineered-systems/health-diagnostics/autonomous-health-framework/ahfug/24.2-changes.html#GUID-D7ADE8A3-2FED-41AC-A9B3-339C8B7B533F

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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