Bug ID 553909: Syncing of files to secondary blades may be unexpectedly delayed

Last Modified: Aug 19, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 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, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
12.1.0

Opened: Oct 22, 2015

Severity: 3-Major

Symptoms

The sending of the configuration files in /config from the primary blade to secondaries may be delayed if a large number of other files were concurrently modified on the primary blade that also need to be synchronized to the secondaries.

Impact

Rebooting a secondary during sync may have undefined behavior.

Conditions

This only affects chassis platforms.

Workaround

None

Fix Information

The sending of the configuration files in /config from the primary blade to secondaries could have been delayed if a large number of other files were concurrently modified on the primary blade that also need to be synchronized to the secondaries. There is now a separate queue for each directory mirrored between devices. A large number of file changes outside of /config will no longer affect file syncs in /config.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips