apache/pulsar-client-cpp

Apache Pulsar C++ client library

Stars: 71
Forks: 90
Open beginner issues: 0
Indexed issues: 65
Avg merge: 2h 33m
Merged PRs (30d): 3

Dominant language: C++
License: Apache-2.0
Last GitHub push: Sep 1, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Open All

65 open issues indexed

[Feature request] Conan recipe to build C++ client and publication to conan-center Open

apache/pulsar-client-cpp#80 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
disableReplication in MessageBuilder does not work in PulsarClient C++ and Java Open

apache/pulsar-client-cpp#81 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[pulsar-client-cpp] Partition key from producer does arrive in broker Open

apache/pulsar-client-cpp#111 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Key-based batching and hashingScheme parameter for Python client Open

apache/pulsar-client-cpp#83 · 5 comments · 6 reactions · 0 assignees · Indexed Sep 14, 2026
Shared consumers do not receive messages in C++ and acknowledged messages get redelivered Open

apache/pulsar-client-cpp#84 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] pulsar-client-cpp stability enhancements and code cleanup Open

apache/pulsar-client-cpp#112 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Attempting to connect a consumer to a very recently created topic/subscription sometimes fails with UnknownError on the client Open

apache/pulsar-client-cpp#86 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[pulsar-client-cpp] Excessive locking cause significant performance degradation Open

apache/pulsar-client-cpp#116 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Specify the dependency version in the vcpkg Open

apache/pulsar-client-cpp#113 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[feature request] C++ client support producer access mode. Open

apache/pulsar-client-cpp#95 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] C++ and Python client support consumer memory limits. Open

apache/pulsar-client-cpp#93 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] C++ and Python client consumer add epoch. Open

apache/pulsar-client-cpp#94 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] C++ and Python support negative acknowledgment backoff Open

apache/pulsar-client-cpp#92 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] C++ and Python support ack timeout redelivery backoff Open

apache/pulsar-client-cpp#91 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] pulsar-cpp-client pulsar::HTTPLookupService::handleLookupHTTPRequest coredump Open

apache/pulsar-client-cpp#78 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add license headers and related checks Open

apache/pulsar-client-cpp#4 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Feature] Support IPV6 in Pulsar CPP Client Open

apache/pulsar-client-cpp#48 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Improve] Show Invalid Token Error Message Open

apache/pulsar-client-cpp#53 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] Pulsar client can't have static storage duration Open

apache/pulsar-client-cpp#56 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ConnectError with Python Client when importing other CPP library first Open

apache/pulsar-client-cpp#74 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[question] python jsonschema cant inheritance Open

apache/pulsar-client-cpp#106 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[DOC] Create a dropdown version list for API document Open

documentation good first issue help wanted

apache/pulsar-client-cpp#120 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add the release process Open

apache/pulsar-client-cpp#123 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flaky test: ProducerTest.testWaitForExclusiveProducer Open

apache/pulsar-client-cpp#135 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support setting log level for C Api Open

enhancement

apache/pulsar-client-cpp#137 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] Support consumer client memory limit Open

apache/pulsar-client-cpp#161 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] Pulsar cluster level auto failover on client side Open

apache/pulsar-client-cpp#164 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feature request] Expose the chunk config of consumer to the reader Open

apache/pulsar-client-cpp#165 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flaky test: ClientTest.testCloseClient Open

apache/pulsar-client-cpp#167 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Enable tls hostname verification in c++ client it is failing but works with java client Open

apache/pulsar-client-cpp#174 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flaky test: KeyBasedBatchingTest.testOrderingKeyPriority Open

apache/pulsar-client-cpp#173 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Incorrect configuration of PartititionsUpdateInterval Open

apache/pulsar-client-cpp#191 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[issue] run ./pulsar-tests with main branch use 2.11.0 pulsar docker image throw exception Open

apache/pulsar-client-cpp#192 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Improve] Catch the log when running the test service Open

apache/pulsar-client-cpp#194 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Fix the batch index ACK performance issue Open

apache/pulsar-client-cpp#219 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[Bug] Getting ConnectError when expecting AuthenticationError Open

apache/pulsar-client-cpp#227 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[feat][cpp-client] PIP-145: Notifications for faster topic discovery - already implemented in Java client but not yet in C++? Open

apache/pulsar-client-cpp#234 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] subscribeAsync and createProducerAsync return UnknownErrorCode when built using devtoolset-11 Open

apache/pulsar-client-cpp#255 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] CPP/Python Logger cannot be changed between different clients. First one set stays for all Pulsar Clients Open

apache/pulsar-client-cpp#333 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] HTTP lookup could return non-retryable error when connecting through proxy Open

apache/pulsar-client-cpp#343 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] std::system_error thrown during/after client->subscribe(...) when using configuration setUnAckedMessagesTimeoutMs. Open

apache/pulsar-client-cpp#358 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Feature Request] There is no Transaction Support in C++ client API Open

apache/pulsar-client-cpp#366 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Feature Request] Support executing callbacks concurrently Open

apache/pulsar-client-cpp#368 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Feature] Subscription mode missing. Open

apache/pulsar-client-cpp#372 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Custom LoggerFactory for log4cxx Open

apache/pulsar-client-cpp#376 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
how can close pulsar logs Open

apache/pulsar-client-cpp#393 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] Acknowledge might fail with ResultAlreadyClosed during unload Open

apache/pulsar-client-cpp#407 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] Wireshark tests failed in CI Open

apache/pulsar-client-cpp#415 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] MaxMessageSize might be incorrect when accessing multiple clusters Open

apache/pulsar-client-cpp#419 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Bug] [ARM] Partially acknowledged batches are not redelivered Open

apache/pulsar-client-cpp#424 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

A short digest of beginner-friendly GitHub issues.