Slow to respond
This slows down vault-account-processor and it may time out. Updates are not performed atomically, so retrying an account update may result in repeated sub-operations. Monitor the situation via the vault.core.account_update.events activity.
Unavailable
Fatal for the vault-account-processor. It will not be able to process any account updates, not even to update the status of them to FAILED. You will not be able to query the state of processes via the Core API Account endpoints, so check the pods.