Comment 1 for bug 1726474

Would it be possible that you are deleting a node why it is deploying?

I believe what is happening is that Django is deleting the node, which also involves the cascade delete of all the events for that node.

1. Region A starts a transaction.
2. Region A selects all events that are related to the node.
3. Region A deletes all selected events.
4. Region B starts a transaction.
5. Region B adds a new events.
6. Region B commits transaction.
7. Region A deletes the node.
8. Region A commits the transaction (which fails, since Region B added new events)

So back to the original question was the node still deploying or reboot and events where being created when you choose to delete this node?