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Posted to commits@pulsar.apache.org by "lhotari (via GitHub)" <gi...@apache.org> on 2025/09/03 14:27:49 UTC

Re: [PR] [improve][broker] Implement PIP-430 Pulsar Broker cache improvements [pulsar]

lhotari commented on PR #24623:
URL: https://github.com/apache/pulsar/pull/24623#issuecomment-3249499948

   While doing some validation, I noticed that Pulsar has a long time issue that consumers aren't able to keep with producers even when there are available resources unless `dispatcherMaxReadBatchSize` (and possibly also `dispatcherMaxReadSizeBytes`) are tuned. The default value for `dispatcherMaxReadBatchSize` is `100` which seems to be too small. Increasing it to `1000` could help in increasing cache hits and performance.


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