Bug ID 591060: APMD high CPU utilization

Last Modified: Aug 08, 2019

Bug Tracker

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

Known Affected Versions:
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, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5

Fixed In:
13.0.0

Opened: May 04, 2016
Severity: 3-Major

Symptoms

APMD is running at unexpectedly high CPU.

Impact

-- High CPU utilization. -- Configuration cannot be pushed to APMD after MCPD restarts.

Conditions

This occurs when both of the following conditions are met: -- The connection between APMD and MCPD is lost due to MCPD restart. -- APMD keeps reading from the stale socket.

Workaround

None.

Fix Information

APMD is now restarted when such an error condition is detected.

Behavior Change