Bug ID 757431: mcpd process killed after upgrade from 12.1.3

Last Modified: Oct 13, 2023

Affected Product(s):
BIG-IP Install/Upgrade, LTM(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 15.1.10,

Opened: Feb 01, 2019

Severity: 3-Major


The BIG-IP appliance fails to become available after upgrade, and the mcpd process keeps restarting.


The BIG-IP system fails to become operational.


A BIG-IP system is upgraded from 12.1.3 to 14.1.0, with a very large configuration. For example, this was encountered with more than 8,000 virtual servers and more than 600 monitor instances.


If you are encountering this, you can disable the mcpd heartbeat with the following command to complete the upgrade: tmsh modify sys daemon-ha mcpd heartbeat disable Once the upgrade is complete, enable the heartbeat: tmsh modify sys daemon-ha mcpd heartbeat enable

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips