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Hiram Chirino commented on APLO-86:
-----------------------------------
https://issues.apache.org/jira/browse/APLO-92 is a better fix for this issue. The temp:true
feature is going to be removed.
> Subscription with exclusive:true and auto-delete:true should not redeliver messages
> -----------------------------------------------------------------------------------
>
> Key: APLO-86
> URL: https://issues.apache.org/jira/browse/APLO-86
> Project: ActiveMQ Apollo
> Issue Type: Bug
> Reporter: Lionel Cons
> Assignee: Hiram Chirino
> Fix For: 1.0
>
>
> The exclusive and auto-delete subscription options can be combined to create a private
reply queue.
> The current Apollo snapshot does not seem to always delete unconsumed messages, allowing
a rogue client to consume them.
> My test scenario:
> - c1 subscribes to /queue/foo with exclusive:true and auto-delete:true and ack:client
> - c1 sends messages with the appropriate reply-to header, expecting replies to go to
/queue/foo
> - (rogue) c2 subscribes to /queue/foo with the intent to steal messages, it does not
get any because of exclusive:true
> - c1 receives and acks messages and then decides to quit
> - there are not yet delivered or not yet acked messages in the queue
> - c1 unsubscribes and disconnects
> - the broker delivers the pending messages to c2 before/while deleting the queue
> IMHO, the broker should not deliver messages to c2 in this situation.
> The best solution is probably to forbid subscribing to a queue that has a subscription
with both exclusive:true and auto-delete:true.
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