Fifo

Any structure in which the First object In is the First object Out

Queue

A queue is an ordered, first-in-first-out data structure



Amazon sqs sns

Example

"According to the aws article tutorial subscribing an amazon sqs queue to an amazon sns topic see the following note amazon sns isn t currently compatible with fifo queue"

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AWS FIFO queues subscription with SNS: passing message group id

"Note amazon sns isn t currently compatible with fifo queue"

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Aws sns publish does not reach endpoint

"Important amazon sns isn t currently compatible with fifo queue"

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Are SNS messages fanned out to SQS queues keeping the order?

Others

Example

My mistake was to think that the queue proxy is not iterable because it is the proxy;however the proxy works fine in place of the actual queue if put get are used also a fifo queue cannot be closed and does not have a natural end which i found annoying because it means one has to send around special end of queue entries but not too many of them to not unintentionally block the queue

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Using queue to communicate between processes

Note that lifo queue are a good fit for singly linked lists;fifo fifo not so

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Lisp - Hill Climbing

I have to develop a better queue that works more efficiently than the fifo queue

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FIFO Queue improvement for C#

The following features of aws services aren t currently compatible with fifo queue auto scaling lifecycle hooks aws iot rule actions aws lambda dead letter queue for information about compatibility of other services with fifo queue see your service documentation

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AWS FIFO queues subscription with SNS: passing message group id

As seen on the screenshot your query is fifo and the documentation says amazon sns isn t currently compatible with fifo queue

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How to subscribe long polling queue in aws ?? i didn't get the button "subscribe queue to sns notification " in queue action

It sets the udp socket to non-blocking mode then loops around select to recvfrom any incoming udp packets and append in a thread-safe manner both the incoming packet s data and its source-address port info to a fifo queue for other less time-sensitive threads to take out and work on later;that way even if a packet or series or packets takes a relatively long time to process the result won t be that packets get dropped although it might temporarily increase ram usage as the fifo grows larger

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Multiple UDP sockets and multiple clients

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