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 14h
Merged PRs (30d): 160

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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1253 open issues indexed

Client repeat registration when unload a bundle Open

lifecycle/stale type/bug

apache/pulsar#12165 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] Questions about pulsar broker direct OOM Open

lifecycle/stale type/bug

apache/pulsar#12169 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support manual unload bundles to Specified broker Open

lifecycle/stale type/feature

apache/pulsar#12230 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Monitoring] Is it possible to add producer/consumer name labels to pulsar metrics? Open

lifecycle/stale type/enhancement

apache/pulsar#12254 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PIP 105: Support pluggable entry filter in Dispatcher Open

lifecycle/stale type/PIP

apache/pulsar#12269 · 25 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unexpected redelivery of a message Open

lifecycle/stale type/bug

apache/pulsar#12281 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar SQL BufferUnderflowException after upgrading from 2.7.0 to 2.8.1 Open

type/bug

apache/pulsar#12284 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
How to participate in the authentication information for websocket connection custom authentication Open

lifecycle/stale type/bug

apache/pulsar#12304 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
python pulsar function delaying and missing messages when input is given from topic pattern Open

lifecycle/stale type/bug

apache/pulsar#12327 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Function worker service is not done initializing. Please try again in a little while. Reason: HTTP 503 Service Unavailable Open

lifecycle/stale type/bug

apache/pulsar#12363 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unable to batchreceive message the available permit is going to negative Open

lifecycle/stale type/bug

apache/pulsar#12370 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Topic partition's segmented storage space calculation error Open

lifecycle/stale type/bug

apache/pulsar#12399 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Any runtime exception in AbstractBaseDispatcher breaks the broker Open

lifecycle/stale type/bug

apache/pulsar#12405 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PulsarClientException$BrokerMetadataException error reoccurs in release 2.8.1 Open

lifecycle/stale type/bug

apache/pulsar#12455 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar SQL NullPointerException when select a row produced by go client with schema Open

type/bug

apache/pulsar#12465 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add the backlog to the ledger of the topic's subscription Open

lifecycle/stale type/feature

apache/pulsar#12505 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Java client] Deadlock in Message.getValue() if executed inside a Pulsar async callback, due to blocking download of the Schema Open

area/client area/schema lifecycle/stale type/bug

apache/pulsar#12508 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Attempting to delete a tenant that was recently created sometimes fails with "MetadataStoreException: org.apache.zookeeper.KeeperException$NotEmptyException: KeeperErrorCode = Directory not empty for /admin/policies/$tenantname" Open

type/bug

apache/pulsar#12553 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Permanent namespace corruption after attempting to delete a namespace shortly after it was created and after all contained topics were deleted; broker log of "MetadataNotFoundException: Managed ledger not found" Open

lifecycle/stale type/bug

apache/pulsar#12556 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Kerberos authentication failed Open

type/bug

apache/pulsar#12587 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Prometheus collect the metric fail Open

lifecycle/stale type/bug

apache/pulsar#12617 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Could not complete the operation. Number of retries has been exhausted. Failed reason: Maximum redirect reached: 5 Open

lifecycle/stale type/bug

apache/pulsar#12628 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PIP 98: Redesign Pulsar Information Architecture Open

doc lifecycle/stale type/PIP

apache/pulsar#12661 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
pulsar-admin source create fails and exist 0 with a wrong source type Open

lifecycle/stale type/bug

apache/pulsar#12718 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
peek message for pulsar-admin java client does not return a key of a peeked message Open

lifecycle/stale type/bug

apache/pulsar#12733 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar Sink connectors not getting messages when input rate to pulsar is high Open

lifecycle/stale type/bug

apache/pulsar#12747 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Broker extensions to provide operators of enterprise-wide clusters better control and flexibility Open

lifecycle/stale type/feature

apache/pulsar#12752 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Add remove-clusters command for namespace in pulsar-admin Open

lifecycle/stale type/feature

apache/pulsar#12822 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[Pulsar-Admin] Ledgers in the partitioned-stats-internal command are missing Open

lifecycle/stale type/bug

apache/pulsar#12824 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
pulsar bookie ledger count Open

lifecycle/stale type/bug

apache/pulsar#12851 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
java.lang.IllegalArgumentException: Malformed Kerberos name: broker/http://xxx@KRB5.COM Open

lifecycle/stale type/bug

apache/pulsar#12868 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
In the process of perf,Broker shutdown. Open

lifecycle/stale type/bug

apache/pulsar#12884 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Admin putFunctionState REST API MediaType is multipart/form-data Open

lifecycle/stale type/bug

apache/pulsar#12905 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Send To Topic Timeout Open

lifecycle/stale

apache/pulsar#12921 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Rebalancing functions does nothing Open

lifecycle/stale type/bug

apache/pulsar#12928 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
maxMessagePublishBufferSizeInMB does not consider the messages handled by Protocol Handler Open

lifecycle/stale type/enhancement

apache/pulsar#12959 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Java client consumer acknowledge issue. It should work for both of the cases Open

lifecycle/stale type/bug

apache/pulsar#12962 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
No ledger found while trying to read last entry: 306 Open

lifecycle/stale type/bug

apache/pulsar#12964 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Functions] Function workers require more memory on Pulsar 2.8.x+ Open

lifecycle/stale type/bug

apache/pulsar#12974 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Replicate segments in multiple data centers Open

lifecycle/stale type/feature

apache/pulsar#12980 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unable to create a JDBC sink Open

lifecycle/stale Stale type/bug

apache/pulsar#12987 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar sink is not running ( sink status : false ) Open

help wanted lifecycle/stale Stale type/bug

apache/pulsar#13021 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ERROR Failed to evaluate client token: javax.security.sasl.SaslException: Final handshake step failed Open

lifecycle/stale Stale type/bug

apache/pulsar#13060 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] Judgment criteria for reconnecting the producer Open

lifecycle/stale Stale type/bug

apache/pulsar#13061 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar support for Apache Avro library as published by Apache Open

lifecycle/stale Stale type/enhancement

apache/pulsar#13096 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Pulsar Function's cannot reference classes inside NAR file when running Pulsar in standalone mode Open

lifecycle/stale Stale type/bug

apache/pulsar#13128 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cluster switching failed for producers Open

lifecycle/stale Stale type/bug

apache/pulsar#13148 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[admin] enhance rest api to help calculate the ending MessageID with a starting MessageID and an offset number Open

help wanted Stale type/feature

apache/pulsar#13160 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Attempting to delete persistent topics shortly after they are created yields intermittent "BKException$BKUnexpectedConditionException: Unexpected condition" Open

lifecycle/stale Stale type/bug

apache/pulsar#13172 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Elasticsearch sink `keyIgnore` config support non-keyvalue schemas (i.e. avro and json) Open

lifecycle/stale Stale type/enhancement

apache/pulsar#13173 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/pulsar

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