Known Issues
Poison Pill has several known issues:
- Currently only one health detection system (e.g. NHC, MHC) is supported at the same time (i.e. you can’t use NHC and MHC at the same time)
- The timeout to assume the node has been rebooted is the same for all nodes. The safe timeout should be configured for the highest watchdog timeout
- Poison Pill does not run on masters
- Uninstalling the operator doesn’t remove the poison pill daemonset. a user should delete the PoisonPillConfig CR to remove the daemonset
- Upon poison pill installation, it might take up to 2 minutes before the daemonset is deployed
- IPv6 is not supported
- Clusters with OVN network plugin are not supported due to Bug 1973286
- At least two workers are required to get node fencing
- At release 0.3 channel name was changed from “alpha” to “stable”. This means that when releases prior to 0.3 are upgraded, the channel name needs to be changed manually