Bug ID 669818: Higher CPU usage for syslog-ng when a syslog server is down

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3

Fixed In:
13.0.1, 12.1.3, 11.6.3.3

Opened: Jun 19, 2017
Severity: 3-Major
Related Article:
K64537114

Symptoms

Higher CPU usage for syslog-ng when a syslog server is down.

Impact

Potentially higher than expected CPU usage.

Conditions

A remote log server is added but it is not available.

Workaround

To mitigate this issue, use either of the following: -- Ensure that the remote log server is available. -- Remove the remote log server from the configuration.

Fix Information

None

Behavior Change