output stops around 15k messages. Can you please help with what's wrong with this example?

[jayeshpk1]

output stops around 15k messages. Can you please help with what's wrong with this example?

[nihohit]

I'm sorry, but it would be hard to help here without compiling code. Can you provide a full example?

[jayeshpk1]

Thanks. updated the code

[nihohit]

no, this still won't compile - what are all the mods you're referencing? can you create a sample repository, or better yet, recreate this in redis-rs' tests?

[nihohit]

and I hope it's clear - you're referencing 4 mods here. If they're large, we won't go over them to find your bug. Please post a minimal sample repository.

[jayeshpk1]

This example has rest of the code https://github.com/paoloposso/rust_redis_pubsub/tree/main/src

[nihohit]

ok, what am I supposed to see in this code example? how does it demonstrate the issue?

I see 3 messages published, and that 3 messages are printed to console with "published" printed somewhere in-between. This is expected. Then the program hangs, because redis_subscrober spawned a task that never completes.
I also see that you create a new connection for each published message, which isn't an optimal usage of resources.

What issue does this demonstrate?

[jayeshpk1]

Please publish the messages in a loop of 100,000 and run.

[nihohit]

which loop? there's no loop in main.rs.

[jayeshpk1]

you can see the loop in the main.rs I posted above

[nihohit]

You're right, this does reproduce as given. But, when I removed the serde dependency, this doesn't reproduce - I ran the code to 600K operations, and counting.
Why do you think this is an issue with the redis crate?

[nihohit]

Sorry, I made a mistake - the example still gets stuck at the end of the loop, regardless of how large the loop is - probably because of the spawned task that never completes. Once I changed the spawned task to complete with

pub fn subscribe(channel: String) -> Result<(), Box<dyn Error>> {
    let _ = tokio::spawn(async move {
        let client = redis::Client::open("redis://localhost").unwrap();

        let mut con = client.get_connection().unwrap();
        let mut i = 0;
        let _: () = con
            .subscribe(&[channel], |msg| {
                i += 1;
                let received: String = msg.get_payload().unwrap();

                println!("{received}");

                return if i == 157126 {
                    ControlFlow::Break(())
                } else {
                    ControlFlow::Continue
                };
            })
            .unwrap();
    });

    Ok(())
}

the application completed successfully.

[nihohit]

@jayeshpk1 was your issue solved? can this issue be closed?