@Lari Hotari [improve][broker] Recover susbcription creation on the broken schema ledger topic by rdhabalia · Pull Request #22469 · apache/pulsar is this PR not available in 3.0.x ? we are having a issue Failed to enable deduplication: org.apache.bookkeeper.mledger.ManagedLedgerException$LedgerNotExistException: No such ledger exists on Bookies And any plan of the fix of the below issue [Bug] Error while reading ledger - ledger=13 - operation=Failed to read entry · Issue #23493 · apache/pulsar

There are multiple reasons what could have caused the issue in the first place. The known issues have been addressed. One of the fairly recent ones that was fixed was https://github.com/apache/bookkeeper/pull/4607, which has been included since Pulsar 3.0.13, 3.3.8, 4.0.6, and 4.1.0. Please make sure to use most recent supported version of Pulsar. Currently it's 3.0.15, 4.0.8, and 4.1.2, which are supported. Fixing data corruption is specific to the situation and what needs to be done depends on the situation.

@Lari Hotari we are using 3.0.13 and saw this issue in production ..for upcoming releases we will move to 3.0.15 .

3.0.13 already included BookKeeper PR 4607, however if the data was corrupted earlier, upgrading wouldn't fix the problem.