apache/pulsar

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Apache Pulsar - distributed pub-sub messaging system

Stars: 15.3k
Forks: 3.8k
Open beginner issues: 0
Indexed issues: 1.3k
Avg merge: 1d 22h
Merged PRs (30d): 142

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

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1254 open issues indexed

Pulsar won't starting on kubernetes, some pods in init state Open

lifecycle/stale type/bug

apache/pulsar#11277 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
IllegalStateException: Field 'read_compacted' is not set Open

lifecycle/stale type/bug

apache/pulsar#11286 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
2.8.0 sink can no longer process batched records from Python producer Open

lifecycle/stale type/bug

apache/pulsar#11288 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Regression in the behavior of subscribe() Open

lifecycle/stale type/bug

apache/pulsar#11289 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Hope the official provide the detailed configuration document of authorization and authentication Open

lifecycle/stale type/enhancement

apache/pulsar#11297 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Strange behavior of open cursor with initial position Open

lifecycle/stale type/bug

apache/pulsar#11334 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
unclear relation between namespace and cluster name Open

lifecycle/stale type/bug

apache/pulsar#11356 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
sending timestamps or dates within a schema Open

lifecycle/stale type/enhancement

apache/pulsar#11409 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support for Elliptic Curve Cryptography (EC, ECC) (certificates/private keys) Open

lifecycle/stale type/enhancement

apache/pulsar#11431 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Investigate root cause for quarantined test RackAwareTest.testPlacement since it might be a real production code issue Open

help wanted type/bug

apache/pulsar#11433 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide DLQ capibilities for Sinks Open

lifecycle/stale type/enhancement

apache/pulsar#11444 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
deduplication is not working as expected Open

lifecycle/stale type/bug

apache/pulsar#11445 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[sink jdbc-clickhouse] avro (and possibly others) sink is broken Open

lifecycle/stale type/bug

apache/pulsar#11457 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
container terminated at 'Creating single directory db ledger storage' when setup in docker Open

lifecycle/stale type/bug

apache/pulsar#11464 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Caused by: org.apache.distributedlog.exceptions.BKTransmitException: Failed to open ledger handle for log segment Open

lifecycle/stale type/bug

apache/pulsar#11470 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support brotli compression algorithm Open

lifecycle/stale type/enhancement

apache/pulsar#11471 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Why admin management users are only allowed to log in in one browser, and the current connection is interrupted when others log in Open

lifecycle/stale

apache/pulsar#11482 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Problem while deploying into kubernetes in EKS using helm , kubernetes version >= 1.16.0 Open

lifecycle/stale

apache/pulsar#11488 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar Java 2.7.2 admin API topics().getLastMessageId() return 500 HTTP status code Open

lifecycle/stale type/bug

apache/pulsar#11491 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
keep performance up: performance regression testing Open

lifecycle/stale type/enhancement

apache/pulsar#11677 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Stop one broker may cause another broker shutdown when enable function woker in broker Open

lifecycle/stale type/bug

apache/pulsar#11695 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Websocket] Pulsar Request Logger Logs Token Query Param for WS Open

lifecycle/stale type/enhancement

apache/pulsar#11708 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add integration test for function protobuf schema Open

lifecycle/stale type/enhancement

apache/pulsar#11711 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Request for documentation on "ZoneawareEnsemblePlacementPolicy" of Bookie Open

lifecycle/stale type/bug

apache/pulsar#11713 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Request for steps to upgrade Pulsar from Single AZ to Multi-AZ deployment on AWS Open

doc-required lifecycle/stale type/bug

apache/pulsar#11717 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
What is the development process of the client authentication plug-in? Open

lifecycle/stale type/feature

apache/pulsar#11746 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Client] ClientBuilder didn't expose requestTimeoutMs setter for ClientConfigurationData Open

lifecycle/stale type/bug

apache/pulsar#11752 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
When one consumer subscribes to multiple topics, disable allowAutoTopicCreation in broker.conf, as long as one topic in the topic list does not exist, messages cannot be received Open

lifecycle/stale type/bug

apache/pulsar#11756 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Open MLPendingAckStore managedLedger failed Open

lifecycle/stale type/bug

apache/pulsar#11772 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
should we allow users use clear password in AuthenticationProviderBasic Open

lifecycle/stale type/enhancement

apache/pulsar#11773 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
producer.sendAsync is interrupted by client.close() Open

lifecycle/stale type/bug

apache/pulsar#11780 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PIP-89: Structured document logging (Master issue) Open

lifecycle/stale type/enhancement

apache/pulsar#11799 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
the machine a, i run a standalone pulsar, and can produce and consume message on machine a; but on machine b, how can i produce message? Open

lifecycle/stale type/feature

apache/pulsar#11830 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[2.8.0] After being killed with SIGKILL, pulsar standalone will not start unless its data directory is removed. Open

lifecycle/stale type/bug

apache/pulsar#11842 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Function list API return more message Open

lifecycle/stale type/feature

apache/pulsar#11861 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Exclusive subscription mode for partitioned topics not seeing consistent order among different consumers Open

lifecycle/stale type/bug

apache/pulsar#11883 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
In ReconsumeLater interface, support level increment delay Open

lifecycle/stale type/feature

apache/pulsar#11892 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Admin/Permissions: getPartitionedTopicListshould work even with Topic Level Permissions Open

lifecycle/stale type/enhancement

apache/pulsar#11945 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Topic stats "unackedMessages" not updated correctly for subscription and consumer Open

lifecycle/stale type/bug

apache/pulsar#11979 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
How to add an new disk to an exists bookkeeper node? Open

lifecycle/stale

apache/pulsar#11991 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
subscribe to partitioned topic(s) error while non-partitioned topics ok through re.Pattern topics Open

lifecycle/stale type/bug

apache/pulsar#12003 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Send to retry letter topic exception with topic Open

lifecycle/stale type/bug

apache/pulsar#12021 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Allow us to easily get a mapping of topics to brokers Open

lifecycle/stale type/enhancement

apache/pulsar#12026 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flaky-test: [org.apache.pulsar.broker.resourcegroup.RGUsageMTAggrWaitForAllMesgsTest].[testMTProduceConsumeRGUsage] Open

lifecycle/stale

apache/pulsar#12033 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Pulsar Websocket] Consumer message can't be acknowleaged successfully after toByteArray & fromByteArray Open

lifecycle/stale type/bug

apache/pulsar#12059 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Metrics] Make Histogram Buckets Configurable Open

lifecycle/stale type/feature

apache/pulsar#12069 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Topic subscription backlog can't be cleared Open

lifecycle/stale type/bug

apache/pulsar#12075 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
producer can't send to other running broker when force kill the broker Open

lifecycle/stale type/bug

apache/pulsar#12086 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PIP 97: Asynchronous Authentication Provider Open

type/PIP

apache/pulsar#12105 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Repeated consumption Open

lifecycle/stale type/bug

apache/pulsar#12125 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/pulsar

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