why we need 'pre-shutdown-ha.sh'

[huyiqiu]

Hi, I'm not sure why we need 'pre-shutdown-ha.sh' as a preStop hook, since orchestrator can perform auto-failover.

i set '--failover-before-shutdown=false' and kill master pod, the slave pod is promoted as new master, and everything looks fine. Did I miss something important？

[drivebyer]

When shrinking the size, the node that shrinks is the master role, and the preStop hook can perform failover operations.