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[Bug] [java client] Nacked chunked messages do not get redelivered

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open.

#25220 In apache/pulsar;

· davidsealand-toast opened on Feb 6, 2026

Flaky-test: PulsarFunctionsK8STest.testCreateFunctionInK8sWithSecrets

area/test

type/flaky-tests

Status: Open.

#25218 In apache/pulsar;

· lhotari opened on Feb 5, 2026

[Enhancement] PIP-234: Add a solution to share the memory limit controller solution

type/enhancementThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messagesThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messages

Status: Open.

#25212 In apache/pulsar;

· lhotari opened on Feb 4, 2026

[Bug] MultiTopicsConsumer still received message with older ConsumerEpoch after redeliverUnacknowledgeMessages()

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open.

#25204 In apache/pulsar;

· YinY1 opened on Feb 3, 2026

Support for protobuf gencode v4.x

type/enhancementThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messagesThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messages

Status: Open.

#25202 In apache/pulsar;

· ngale1234 opened on Feb 2, 2026

·  

5.0.0

Add configuration option to require explicit authentication method specification

type/enhancementThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messagesThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messages

Status: Open.

#25184 In apache/pulsar;

· omarkj opened on Jan 26, 2026

Change broker exception from TopicBacklogQuotaExceededException to TopicBlockQuotaExceededException

type/enhancementThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messagesThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messages

Status: Open.

#25168 In apache/pulsar;

· geniusjoe opened on Jan 20, 2026

[Bug] Static ExecutorService in LoadSimulationController causes resource leak

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open.

#25153 In apache/pulsar;

· QiuYucheng2003 opened on Jan 16, 2026

[Bug] Partial partition consumers silent after topic fencing

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open.

#25146 In apache/pulsar;

· nodece opened on Jan 15, 2026

Flaky-test: OneWayReplicatorDeduplicationTest.testDeduplication

area/test

type/flaky-tests

Status: Open.

#25141 In apache/pulsar;

· Dream95 opened on Jan 14, 2026

[sec] io.airlift:aircompressor contains CVE-2025-67721

Status: Open.

#25139 In apache/pulsar;

· lhotari opened on Jan 14, 2026

[Bug] Potential OOM in FileSource due to unbounded LinkedBlockingQueue (UBSCQ)

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open.

#25135 In apache/pulsar;

· QiuYucheng2003 opened on Jan 13, 2026