Last Modified: Jun 19, 2025
Affected Product(s):
F5OS F5OS-C
Known Affected Versions:
F5OS-C 1.6.1, F5OS-C 1.6.2, F5OS-C 1.8.0
Fixed In:
F5OS-C 1.8.1
Opened: Aug 08, 2024 Severity: 3-Major
ETCD may consume a significant amount of CPU time after a controller failover, or when tenants are being deployed or removed.
This may slow down other F5OS control plane processes while ETCD is consuming a high amount of CPU.
Conditions causing extended high CPU time are unknown at the moment.
If the ETCD CPU usage is continually high, it is possible to restrict the CPU's that ETCD is allowed to run on. This can be done from the system controller shell, and needs to be done on both system controllers. This will need to re-done on system controller reboot or failover. for x in $(pgrep 'etcd$'); do taskset -cp 4-7 $x; done
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