Drain Buffer Not Respected

[crhuber]

I have draino configured with the following drain buffer parameters of 15m0s

  containers:
  - command:
    - /draino
    - --debug=true
    - --drain-buffer=15m0s
    - --namespace=utility
    - NPDCPUPressure

However Im seeing it cordoning and being drained without the buffer taken into account. From the logs its being cordoned at 07:15:20 and drained at 07:15:31

2021-12-02T07:15:20.743Z	DEBUG	kubernetes/eventhandler.go:263	Cordoning
2021-12-02T07:15:20.761Z	INFO	kubernetes/eventhandler.go:272	Cordoned
2021-12-02T07:15:20.761Z	DEBUG	kubernetes/eventhandler.go:296	Scheduling drain
2021-12-02T07:15:20.777Z	INFO	kubernetes/eventhandler.go:308	Drain scheduled  {"node": "x", "after": "2021-12-02T07:15:31.761Z"}
2021-12-02T07:16:16.013Z	INFO	kubernetes/drainSchedule.go:154	Drained

So from the logs its scheduling drain only 11 seconds after being cordoned

[shikeya]

Is this parameter the type of Conditions?