Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 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, 12.0.0, 12.0.0 HF1, 12.0.0 HF2
Fixed In:
12.1.0, 12.0.0 HF3, 11.6.1, 11.5.4 HF2
Opened: Aug 13, 2015 Severity: 3-Major Related Article:
K17509
A particular stage of validation can take longer than the ha-daemon heartbeat interval, and while nothing is actually wrong, the system responds as if there is an unresponsive daemon, so the system restarts it.
MCPd restarts.
iRules must be present in the configuration that the system is loading.
On the BIG-IP system, run the command: tmsh mod sys daemon-ha mcpd heartbeat disabled.
Added additional heartbeats during validation, so HA daemon_heartbeat mcpd no longer fails on load sys config.