thetumbled opened a new pull request, #22765: URL: https://github.com/apache/pulsar/pull/22765
PIP: #354 ### Motivation As every bundle in the cluster corresponds to a zk node, it is common that there are thousands of zk nodes in a cluster, which results into thousands of read/update operations to zk. This will cause a lot of pressure on zk. **As All Load Shedding Algorithm pick bundles from top to bottom based on throughput/msgRate, bundles with low throughput/msgRate are rarely be selected for shedding. So that we don't need to contain these bundles in the bundle load report.** ### Modifications Reuse the configuration `loadBalancerMaxNumberOfBundlesInBundleLoadReport` in `ExtensibleLoadManager`, apply the topK mechanism to `ModularLoadManagerImpl`. ### Verifying this change - [ ] Make sure that the change passes the CI checks. *(Please pick either of the following options)* This change is a trivial rework / code cleanup without any test coverage. ### Does this pull request potentially affect one of the following parts: <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. --> *If the box was checked, please highlight the changes* - [ ] Dependencies (add or upgrade a dependency) - [ ] The public API - [ ] The schema - [ ] The default values of configurations - [ ] The threading model - [ ] The binary protocol - [ ] The REST endpoints - [ ] The admin CLI options - [ ] The metrics - [ ] Anything that affects deployment ### Documentation <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. --> - [ ] `doc` <!-- Your PR contains doc changes. --> - [ ] `doc-required` <!-- Your PR changes impact docs and you will update later --> - [ ] `doc-not-needed` <!-- Your PR changes do not impact docs --> - [ ] `doc-complete` <!-- Docs have been already added --> ### Matching PR in forked repository PR in forked repository: <!-- ENTER URL HERE --> -- 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]
