I'm a bit confused by the documentation vs. the source code when it comes to BoundedMailbox and pushTimeOut (aka "mailbox-push-timeout-time").
The documentation (http://doc.akka.io/docs/akka/2.4.4/java/mailboxes.html) says, (implicitly regarding BoundedMailbox), "Other bounded mailbox implementations which will block the sender if the capacity is reached and configured with non-zero mailbox-push-timeout-time." It also says, (again about BoundedMailbox), "The following mailboxes should only be used with zero mailbox-push-timeout-time." but it does not say *why* . I found that in Mailboxes#lookupConfigurator(String), there's a warning when pushTimeOut > zero: "Configured potentially-blocking mailbox [$id] configured with non-zero pushTimeOut (${m.pushTimeOut}), which can lead to blocking behaviour when sending messages to this mailbox. Avoid this by setting `$id.mailbox-push-timeout-time` to `0`." This all implies that if pushTimeOut is zero, that there will be no blocking and therefore presumably if the mailbox is full the message will go immediately to dead letters. The reason I am confused by this is that BoundedMailbox uses BoundedMailbox.MessageQueue which is a LinkedBlockingQueue plus BoundedQueueBasedMessageQueue. If pushTimeOut >= 0, BoundedQueueBasedMessageQueue defines enqueue() as queue.put() which is blocking and doesn't send anything to dead letters (contrary to the documentation). What am I missing? What I would like is to guarantee that even if the consuming Actor is slow that no messages go to dead letters, and instead the producer is blocked while sending the message. If pushTimeOut=0 with a bounded mailbox is not the right way to do that, what is? Thanks! Shannon -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
