Bug ID 1032761: HA mirroring may not function correctly.

Last Modified: Feb 08, 2022

Bug Tracker

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1

Fixed In:
15.1.4

Opened: Jul 09, 2021
Severity: 1-Blocking

Symptoms

-- High availability (HA) mirroring might not function correctly. -- Health monitors might fail intermittently (though this symptom is not always seen). -- Application response latency might increase slightly. -- Running 'tmctl -d blade tmm/sdaglib_hash_table' on the BIG-IP tenant shows a different sequence of values in the hash table when compared to the output of "show dag-states" in the F5OS Partition CLI. (Though the former renders the values using zero-based indexing, while the latter uses one-based indexing.)

Impact

High availability (HA) mirroring might not function correctly. Degraded application traffic.

Conditions

-- VELOS chassis in use. -- High availability (HA) pair is formed using BIG-IP tenants. -- 'tmsh list cm device mirror-ip' shows a mirror-ip set for each BIG-IP. -- sys db statemirror.clustermirroring is set to 'between'.

Workaround

None. To recover, set sys db statemirror.clustermirroring to 'within' and restart tmm on all slots of the affected tenant.

Fix Information

Fixed high availability (HA) mirroring.

Behavior Change