At-Most-Once Message Delivery

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You Cannot Have Exactly-Once Delivery – Brave New Geek

    https://bravenewgeek.com/you-cannot-have-exactly-once-delivery/
    Mar 25, 2015 · There are essentially three types of delivery semantics: at-most-once, at-least-once, and exactly-once. Of the three, the first two are feasible and widely used. If you want to be super anal, you might say at-least-once delivery is also impossible because, technically speaking, network partitions are not strictly time-bound.

How does Azure Service Bus Queue guarantees at most once ...

    https://stackoverflow.com/questions/50989673/how-does-azure-service-bus-queue-guarantees-at-most-once-delivery
    Then how does Microsoft says that Service Bus supports at most once delivery mode. Is it because of the Receive-and-Delete mode which sends messages only once.But then again, if something happens while consumers are processing the message then that valuable info is lost.

Messaging: At-Least-Once Delivery · Jonathan Oliver

    https://blog.jonathanoliver.com/messaging-at-least-once-delivery/
    Apr 22, 2010 · Messaging: At-Least-Once Delivery Apr 22, 2010 One of the guarantees behind messaging is guaranteed delivery. Most of us don't give any additional thought to the subject. Until we get into production. While messages may be guaranteed deliverable, have we ever considered that a message may be delivered more than once?

Akka Message Delivery: At-Most, At-Least, and ... - DZone

    https://dzone.com/articles/akka-message-delivery-at-most-at-least-and-exactly
    Nov 15, 2017 · Using the at-most-once approach for message delivery is acceptable in many cases, especially in situations where the occasional lose of a message does not leave a system in an inconsistent state ...Reviews: 1

At-Most-Once Message Delivery - MIT CSAIL

    http://groups.csail.mit.edu/tds/papers/Lynch/concur92.pdf
    The at-most-once message delivery problem involves delivering a sequence of mes- sages submitted by a user at one location to another user at another location. If no failures occur, all messages should be delivered in the order in which they are submitted, each exactly once. ...

How to Guarantee Delivery of Messages in Akka.NET Petabridge

    https://petabridge.com/blog/akkadotnet-at-least-once-message-delivery/
    The AtLeastOnceDeliveryActor.ConfirmDelivery method marks the message as delivered and removes it from the AtLeastOnceDeliveryActor’s internal state, so we won’t attempt to deliver it again going forward.. And that’s the basics for how at least once message delivery is implemented, on the happy path. When Deliveries Fail. The unhappy path occurs when one of the following three scenarios ...

How Akka Works: 'At Most Once' Message Delivery @lightbend

    https://www.lightbend.com/blog/how-akka-works-at-most-once-message-delivery
    Aug 28, 2019 · At-Most-Once Asynchronous Message Delivery With a synchronous object method invocation, the caller knows when the called method is done when the method call returns. When sending an asynchronous message, such as sending a message to an actor or to a microservice, the sender only knows that an attempt was made to send the message.

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