Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP All
Known Affected Versions:
12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1
Fixed In:
13.0.0, 12.1.3.2
Opened: Mar 22, 2016 Severity: 3-Major Related Article:
K22210514
When the statistics DB variable option 'merged.method' is set to 'slow_merge,' system stats is not updated and remains zero.
System stats such as overall CPU usage remain at zero.
Merged.method is set to slow_merge.
Set Merged.method to fast_merge.
When the statistics DB variable option 'merged.method' is set to 'slow_merge,' system stats are not updated as expected.