Bug ID 987113: CMP state degraded while under heavy traffic

Last Modified: Sep 23, 2021

Bug Tracker

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 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: Jan 26, 2021
Severity: 2-Critical

Symptoms

When a VELOS 8 blade system is under heavy traffic, the clustered multiprocessing (CMP) state could become degraded. The symptom could exhibit a dramatic traffic performance drop.

Impact

System performance drops dramatically.

Conditions

Exact conditions are unknown; the issue was observed while under heavy traffic with all 8 blades configured for a tenant.

Workaround

Lower traffic load.

Fix Information

Fixed an inconsistent CMP state.

Behavior Change