Waiting for ack

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#359 3 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
javascript, nodejs
Domain
distributed-systems

Research direction

Start at the NodeJS client's subscribe listener and acknowledgement flow shown in the example, checking how receiverQueueSize: 0 and acknowledgements made outside the listener are handled. Reproduce the subscription with one message in flight and determine whether the next message arrives before acknowledge(msg); done means the sequencing is corrected or the supported behavior is documented.

Written by the indexing model from the issue text.

Description

I'm trying to consume 1 message at a time, and i'm acknowledging the message outside of the listener. But it's just grabbing the next message without waiting for the ack.

code sample:

let msg;
let msgConsumer;

const consumer = client.subscribe({
                    topic: `persistent://public/default/test1`,
                    subscription: `sub1`,
                    subscriptionType: 'Exclusive',
                    receiverQueueSize:0,
                    ackTimeoutMs:300000,
                    listener: (msg,msgConsumer) => {
                        console.log(msg.getData().toString());
                        msg = msg;
                        msgConsumer = msgConsumer;

                    }
                  });
                  
function someWhereElse(){

    msgConsumer.acknowledge(msg);


}

Is something like this possible?

Dominant language
C++
Stars
164
Forks
99
Avg merge
5d 18h
Merged PRs (30d)
2

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