sl1316 opened a new issue #12967: URL: https://github.com/apache/pulsar/issues/12967
Please answer the following questions before submitting your doc issue. Thanks! # What issue do you find in Pulsar docs? I am investigating how pulsar treat the newly added nodes in detail but unable to find useful information under the public pulsar doc and google. the only thing I found is pulsar load balancing and it's mostly talking about how pulsar group topics into bundles, split a bundle with heavy load and load shedding for overloaded brokers(seems bookie is not the concern here). so I have some questions which needs more insights. For newly added broker nodes. 1. could it be idle/low usage for a long time? or pulsar has some mechanism to immediately unload some topics from existing brokers when it discovers the newly added brokers. say if the load is low in average and I am trying to add more brokers just for better latency. if topics can not be moved to the new brokers, then it's not feasible. 2. I am more concerned about thundering herd problems. it's nature to add more brokers when the cluster is overloaded. since the newly added brokers have very low usage, many topics could be assigned to the few newly added broker nodes(assume we only add few). # What is your suggestion? an example with a few lines of explanation/a diagram should be sufficient. this section can be added to FAQ if you think the public doc is overloaded. this is very important for customers interested in migrating from kafka to pulsar since we needs the detail to convince the SRE this is what pulsar provide to reduce the maintenance burden since kafka already has ops tools to deal with the issue(although painful and manual) # Do you have any references? (For example, website links, etc)? # Would you like to fix this issue? yes but I don't have the required knowledge to contribute on this matter. (Welcome to contribute docs! Pulsar grows from a tiny seed to a big tree with every little effort by us! Your contribution is the sunlight, water, and air!) -- 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]
