Each tenant cluster node is allowed up to 20 minutes for the draining process to complete. After this window, the server upgrade proceeds regardless of drain completion to ensure progress. Servers are upgraded one rack at a time, with upgrades performed in parallel within the same rack. The server upgrade does not wait for tenant resources to come online before continuing with the runtime upgrade of other servers in the rack. This approach ensures that the maximum wait time per rack remains 20 minutes, specific to the cordon, drain, and shutdown procedure, and not the overall upgrade.
0 commit comments