szkoludasebastian commented on issue #23908: URL: https://github.com/apache/pulsar/issues/23908#issuecomment-2710423521
> From this stats, [#23908 (comment)](https://github.com/apache/pulsar/issues/23908#issuecomment-2626817353) > > I noticed that "unackedMessages" is non-zero. Seems like either the broker or consumer missed msg acks during the bk restarts. > > fyi, the ExtensibleLoadManager ignores message acks during topic.transferring state, by https://github.com/apache/pulsar/blob/master/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnx.java#L1974-L1984 > > However, I think these unacked messages should be handled by Pulsar message re-delivery mechanism. > > You can confirm this behavior by the debug logs in the above code or `pulsar_lb_ignored_ack_total` metric. > > ``` > Partition-4 stats-internal: > > { > "entriesAddedCounter" : 285, > "numberOfEntries" : 409, > "totalSize" : 4481595, > "currentLedgerEntries" : 285, > "currentLedgerSize" : 3521965, > "lastLedgerCreatedTimestamp" : "2025-01-31T09:46:39.629Z", > "waitingCursorsCount" : 1, > "pendingAddEntriesCount" : 0, > "lastConfirmedEntry" : "2044129:284", > "state" : "LedgerOpened", > "ledgers" : [ { > "ledgerId" : 2043391, > "entries" : 124, > "size" : 959630, > "offloaded" : false, > "underReplicated" : false > }, { > "ledgerId" : 2044129, > "entries" : 0, > "size" : 0, > "offloaded" : false, > "underReplicated" : false > } ], > "cursors" : { > "microbatcher" : { > "markDeletePosition" : "2043391:112", > "readPosition" : "2044129:285", > "waitingReadOp" : true, > "pendingReadOps" : 0, > "messagesConsumedCounter" : 273, > "cursorLedger" : 2044305, > "cursorLedgerLastEntry" : 44, > "individuallyDeletedMessages" : "[(2043391:122..2043391:123],(2044129:-1..2044129:282]]", > "lastLedgerSwitchTimestamp" : "2025-01-31T09:46:39.675Z", > "state" : "Open", > "active" : true, > "numberOfEntriesSinceFirstNotAckedMessage" : 297, > "totalNonContiguousDeletedMessagesRange" : 2, > "subscriptionHavePendingRead" : true, > "subscriptionHavePendingReplayRead" : false, > "properties" : { } > } > }, > "schemaLedgers" : [ ], > "compactedLedger" : { > "ledgerId" : -1, > "entries" : -1, > "size" : -1, > "offloaded" : false, > "underReplicated" : false > } > } > ``` messages are only redelivered when we restart consumer application pods -- 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]
