thetumbled commented on PR #23600: URL: https://github.com/apache/pulsar/pull/23600#issuecomment-2475875349
> > I will implement a space efficient map structure for `ConcurrentTripleLong2LongHashMap` later, which for now use hashmap to ensure the logical correction. > > @thetumbled Fastutil could be a better source of space efficient map data structures. I believe that there's a templating solution where it's possible to generate code for efficient implementations. In this case, is there a need for the data structure to be concurrent? Following a single writer principle could result in simpler and more performant designs. One way to address message passing from other threads to a single writer thread is to use message passing queues from JCTools which we already use in Pulsar. Just some food for thought. If any solution from `Fastutil` prove to be more space efficient, i am glad to adopt it. Nack Tracker will consume enormous amount of memory, we have to choose the best one. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
