AlvaroStream opened a new issue, #19335: URL: https://github.com/apache/pulsar/issues/19335
### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### What issue do you find in Pulsar docs? Compaction documents ( [concepts](https://pulsar.apache.org/docs/2.11.x/concepts-topic-compaction/) and [cookbook](https://pulsar.apache.org/docs/2.11.x/cookbooks-compaction/)) doesn't explains about [how to gather the amount of keys](https://github.com/apache/pulsar/blob/badd69b8e012162feb28c86ca9de527cbfd1ac22/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java#L2246-L2254) in use? neither [how long it took to compact](https://github.com/apache/pulsar/blob/82237d3684fe506bcb6426b3b23f413422e6e4fb/pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactionRecord.java#L70-L73) it or when it was [done](https://github.com/apache/pulsar/blob/82237d3684fe506bcb6426b3b23f413422e6e4fb/pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactionRecord.java#L75-L80) Neither it explains how to delete a key to avoid the number of keys increases too much with tombstones as performed in the [tests.](https://github.com/apache/pulsar/blob/05e6f5e3c71426ee30a8ad1852456f7be897bdf3/pulsar-broker/src/test/java/org/apache/pulsar/compaction/CompactionTest.java#L684-L692) ### What is your suggestion? Improve this on the documentation. Even mention the side effects over a huge amount of topics. ### Any reference? _No response_ ### Are you willing to submit a PR? - [X] I'm willing to submit a PR! -- 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]
