Hi Jonathan

The proper solution I think is to not let the mailboxes grow too large and
implement a backpressure channel instead. You can have your consumers
pulling for (batches) of jobs, or acknowledging (possibly batched)
explicitly, or just by having a Backoff signal.

In general this is exactly the problem reactive-streams solve, but
currently akka-streams is still a preview and not yet production ready.

-Endre


On Thu, Jun 19, 2014 at 5:15 AM, Jonathan Uptmore <
[email protected]> wrote:

> I'm using Akka 2.3.3 and I have an actor mailbox implementation
> of java.util.concurrent.ConcurrentLinkedQueue.  About one millions messages
> pass through this mailbox during one of my application runs.  Consumers
> cannot process the messages faster than they are produced.  Therefore,
> mailbox becomes very full at which point the consumers appear to be waiting
> longer to get a message off the queue/mailbox.  ConcurrentLinkedQueue is
> known to have slow remove times when many elements are in the CLQ.  Are
> there any recommendations or patterns to resolve this bottleneck?
>
> Thanks,
> Jonathan
>
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