Bug ID 501517: Very large configuration can cause transaction timeouts on secondary blades

Last Modified: Oct 16, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.4.1, 11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0,, 11.5.3 HF2, 11.4.1 HF9

Opened: Jan 17, 2015

Severity: 3-Major

Related Article: K17478


Messages with 'end_transaction message timeout on connection 0x5ea9a9c8 (user mcpd-primary)' in them in the ltm log after a secondary blade is inserted or restarted.


mcpd's transaction does not complete and the configuration is not loaded properly.


A multi-bladed system with a very large configuration that takes more than a minute to transfer to secondary blades.



Fix Information

Increased the transaction timeout to accommodate very large configuration transfers.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips