[rabbitmq-discuss] Suggestions for queue rename
fred at dushin.net
Wed Mar 27 12:35:01 GMT 2013
I am implementing a solution for renaming queues, in the case of a software upgrade, where we have decided to change naming patterns for queues between releases. This is in a non-clustered environment. During the upgrade, I can guarantee that the broker is "isolated" (no one publishing or consuming other than the migration code).
I am implementing this as code that runs in the broker, as a plugin, and using an AMQP direct connection. All of my exchanges are direct, but I have some queues that are bound to the same exchange with different routing keys.
My algorithm is:
input: Exchange E, Queue Q, Routing Key K, new Queue name NQ
Precondition: Q is bound to E via K and \exists Q' != Q bound to E via K
For each Queue Q bound to Exchange E with RoutingKey K
1. Unbind Q from E
2. Create new Queue NQ
3. Create a temporary Exchange TE
4. Bind NQ to TE with temporary routing key TK
5. for each message, M, in Q, get M, publish M to TE, ack M
6. delete exchange TE
6. Bind E to NQ with routing key K
Postcondition: NQ is bound to E via K and !\exists Q
Question: Is there an easier way to do this, e.g., via internal APIs in the broker?
Thanks in advance for the free consulting :)
More information about the rabbitmq-discuss