Issues

• [Bug] Proxy/broker always sends CertificateRequest with full truststore CA list, breaking TLS 1.3 handshakes with large truststores

  type/bug
  apache/pulsar#27036 · Filter by author Goodkat opened on Oct 21, 2026
  1

• [Bug] A replicated __compaction subscription stops geo-replication (IllegalArgumentException in PulsarCompactorSubscription.acknowledgeMessage)

  apache/pulsar#27031 · Filter by author kaminski-dev opened on Oct 21, 2026
  2

• [Bug] V5 producer can store a message twice when it re-sends an ambiguously failed send after a segment is sealed

  type/bug
  apache/pulsar#27019 · Filter by author lhotari opened on Oct 20, 2026
  2

  

• [Bug][client] Multi-topic consumer with a message listener loses flow permits when redelivery clears its incoming queue

  type/bug
  apache/pulsar#27016 · Filter by author lhotari opened on Oct 20, 2026
  

• [Enhancement] Support getting broker-stats of a specific broker by broker id

  type/enhancement
  apache/pulsar#27000 · Filter by author programmerahul opened on Oct 19, 2026

• Dispatch rate limiting overshoots the message rate with batched messages

  type/bug
  apache/pulsar#26959 · Filter by author merlimat opened on Oct 17, 2026
  1

• Admin client SASL authentication ignores the client TLS configuration

  type/bug
  apache/pulsar#26958 · Filter by author merlimat opened on Oct 17, 2026

• [Bug] PIP-452 customizable topic listing bypasses the topic list memory limiter in REST, and the properties aren't part of the size estimate key

  apache/pulsar#26937 · Filter by author lhotari opened on Oct 16, 2026
  

• [improve][broker] Add a minimum data rate for HTTP requests and responses with Jetty's MinimumDataRateHandler

  apache/pulsar#26936 · Filter by author lhotari opened on Oct 16, 2026
  

• Preserve non-durable cursor ownership during deferred cleanup

  apache/pulsar#26924 · Filter by author FlorentinDUBOIS opened on Oct 15, 2026

• [Bug] Acknowledged Scalable Topic delete resurrects in Oxia as a permanently unreadable ghost key (getMetadata 500, survives broker restart)

  apache/pulsar#26849 · Filter by author koder7 opened on Oct 10, 2026
  

• [Bug] Deleted scalable topic stays in listScalableTopics and getStats until broker restart once getStats initialized the controller

  type/bug
  apache/pulsar#26846 · Filter by author koder7 opened on Oct 9, 2026
  

• [Bug] V5 checkpoint consumer groups don't preserve per-key order across segment splits and merges

  type/bug
  apache/pulsar#26843 · Filter by author merlimat opened on Oct 7, 2026
  1

• [Bug] Broker memory leak caused by unclosed BookKeeper read handles

  apache/pulsar#26815 · Filter by author void-ptr974 opened on Oct 2, 2026
  3

• [improve][broker] Reduce topic watcher update overhead for large topic lists

  apache/pulsar#26803 · Filter by author void-ptr974 opened on Oct 1, 2026
  1

• [improve][broker] Improve topic watcher notification dispatch scalability

  apache/pulsar#26802 · Filter by author void-ptr974 opened on Oct 1, 2026
  4

• [Bug] Shared and Key_Shared consumers can stop receiving when per-consumer unacked limits are enabled

  apache/pulsar#26801 · Filter by author void-ptr974 opened on Oct 1, 2026
  1

• [Bug] in chunk message consumer, pendingChunkedMessageCount is not synced with count of entries present in chunkedMessagesMap

  type/bug
  apache/pulsar#26688 · Filter by author programmerahul opened on Sep 22, 2026
  2

  

• [Bug] Bound broker shutdown and reserve time to close metadata-store sessions before termination

  apache/pulsar#26648 · Filter by author lhotari opened on Sep 18, 2026
  

• [Bug][Functions] Event-time window function never acks late messages under ATLEAST_ONCE

  type/bug
  apache/pulsar#26577 · Filter by author Dream95 opened on Sep 14, 2026

• Flaky-test: KeySharedSubscriptionTest

  area/testtype/flaky-tests
  apache/pulsar#26568 · Filter by author Dream95 opened on Sep 13, 2026

• [Bug] isCursorDataFullyPersistable ignores the batch-index persistence limit

  apache/pulsar#26499 · Filter by author void-ptr974 opened on Sep 8, 2026

• [Bug] Transaction log and pending-ack store entries are parsed as MessageMetadata on every cache insert and always fail

  apache/pulsar#26494 · Filter by author lhotari opened on Sep 8, 2026
  

• [Bug] Transaction abort does not restore the consumer's unacked message count

  apache/pulsar#26489 · Filter by author nodece opened on Sep 8, 2026

• [improve] Make managed cursor persist-error metrics visible by default

  type/enhancement
  apache/pulsar#26488 · Filter by author lhotari opened on Sep 7, 2026