Claim and deliver one bounded set of outbox messages.
The drain claims only enough messages to fill active delivery slots and
renews each active claim until delivery settles or reaches its configured
maximum duration. It remains an at-least-once transport: a process can still
terminate after the external effect succeeds but before acknowledgement.
Claim and deliver one bounded set of outbox messages.
The drain claims only enough messages to fill active delivery slots and renews each active claim until delivery settles or reaches its configured maximum duration. It remains an at-least-once transport: a process can still terminate after the external effect succeeds but before acknowledgement.