Apache Pulsar 2.9.0 release notes (apache#12425)

* Pulsar 2.9.0 release notes * Address some review comments * More fixes * Update release notes * Minor cleanup from code review Co-authored-by: Michael Marshall <[email protected]>
mrb101 · Dec 10, 2021 · 50be3f8 · 50be3f8
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 ## Apache Pulsar Release Notes
 
-### 2.8.1
+### 2.9.0
+#### 2021-11-25
+
+### News and noteworthy
+- PIP-45 Pluggable metadata interface introduced many changes about ZooKeeper metadata management: consistency, resilience, stability, tech debt reduction (less code duplication)
+- Pulsar IO: Oracle Debezium connector, new Schema aware Elasticsearch sink connector
+- Many improvements to the Pulsar clients, with PIP-83, PIP-91, PIP-96 (see below)
+- Geo-replication improvements: PIP-88 replicate schemas across clusters
+- Apache Kafka connect sinks can be run as Pulsar sinks [#9927](https://github.com/apache/pulsar/pull/9927)
+
+### Breaking changes
+- Now Pulsar requires ZooKeeper 3.6.x because it uses the Persistent Recursive Watches feature (see PIP-45)
+- The Discovery Service has been removed. [12119](https://github.com/apache/pulsar/pull/12119)
+- The Pulsar Standalone docker image has been removed. [11657](https://github.com/apache/pulsar/pull/11657)
+- The Pulsar Dashboard docker image has been removed. [11284](https://github.com/apache/pulsar/pull/11284)
+
+### PIPs
+- [PIP 96] Add message payload processor for Pulsar client [#12088](https://github.com/apache/pulsar/pull/12088)
+- [PIP 99] Pulsar Proxy Extensions [#11838](https://github.com/apache/pulsar/pull/11838)
+- [PIP 89] Timed log events [#11944](https://github.com/apache/pulsar/pull/11944)
+- [PIP 82] Tenant and namespace level rate limiting [#11918](https://github.com/apache/pulsar/pull/11918)
+- [PIP 91] Separate lookup timeout from operation timeout [#11627](https://github.com/apache/pulsar/pull/11627)
+- [PIP 88] Replicate schemas across clusters [#11441](https://github.com/apache/pulsar/pull/11441)
+- [PIP 83] Pulsar Reader: Message consumption with pooled buffer [#11725](https://github.com/apache/pulsar/pull/11725)
+- [PIP 64] Rest API Produce message [PIP 64](https://github.com/apache/pulsar/pull/8125)
+- [PIP 45] Pluggable metadata interface [PIP 45](https://github.com/apache/pulsar/wiki/PIP-45%3A-Pluggable-metadata-interface)
+
+### Pulsar IO and Pulsar Functions
+
+- Added Debezium source for Microsoft SQL Server. [12256](https://github.com/apache/pulsar/pull/12256)
+- Upgrading Debezium to 1.7. [12295](https://github.com/apache/pulsar/pull/12295)
+- Allow Pulsar Functions localrun to exit on error. [12278](https://github.com/apache/pulsar/pull/12278)
+- Function: Support for draining workers. [12178](https://github.com/apache/pulsar/pull/12178)
+- Go Functions: support set subscription position. [11990](https://github.com/apache/pulsar/pull/11990)
+- Support protobuf-native schema for functions. [11868](https://github.com/apache/pulsar/pull/11868)
+- Support protobuf schema for pulsar function. [11709](https://github.com/apache/pulsar/pull/11709)
+- Support KEY_BASED batch builder for Java based functions and sources. [11706](https://github.com/apache/pulsar/pull/11706)
+- Upgrade Go client version to 0.6.0. [11477](https://github.com/apache/pulsar/pull/11477)
+- Stop calling the deprecated method Thread.stop() when stopping the function thread in ThreadRuntime. [11401](https://github.com/apache/pulsar/pull/11401)
+
+### Java Client
+- Add partition-change API for producer or consumer interceptors. [12287](https://github.com/apache/pulsar/pull/12287)
+- Fix deadLetterPolicy is not working with key shared subscription under partitioned topic. [12148](https://github.com/apache/pulsar/pull/12148)
+- Fix endless receiveAsync loop in MultiTopicsConsumer. [12044](https://github.com/apache/pulsar/pull/12044)
+- Reduce redundant FLOW requests for non-durable multi-topics consumer. [11802](https://github.com/apache/pulsar/pull/11802)
+- Set and return topic names on message API. [11743](https://github.com/apache/pulsar/pull/11743)
+- Separate lookup timeout from operation timeout (PIP-91). [11627](https://github.com/apache/pulsar/pull/11627)
+- Switch from pretty print to compact print for configs. [11609](https://github.com/apache/pulsar/pull/11609)
+- Java Client: remove usage of reflection while using Pulsar Implementation classes. [11636](https://github.com/apache/pulsar/pull/11636)
+- Add a optional params scope for pulsar oauth2 client. [11931](https://github.com/apache/pulsar/pull/11931)
+- Schema.NATIVE_AVRO: add a version of AUTO_PRODUCE_BYTES that doesn't validate the message in `encode`. [11238](https://github.com/apache/pulsar/pull/11238)
+
+### C++ Client
+- Support configuring optional scope field for OAuth2 authentication. [12305](https://github.com/apache/pulsar/pull/12305)
+- Support setting priority for the consumer. [12076](https://github.com/apache/pulsar/pull/12076)
+- Fixed attempting to connect to multiple IP addresses. [11958](https://github.com/apache/pulsar/pull/11958)
+- Handle error when shutting down client after forks. [11954](https://github.com/apache/pulsar/pull/11954)
+- Move all C symbols into C++ pulsar namespace. [11919](https://github.com/apache/pulsar/pull/11919)
+- Expose getLastMessageId in the Reader API. [11723](https://github.com/apache/pulsar/pull/11723)
+- Add padding characters to base64 encoded protobuf native schema. [11492](https://github.com/apache/pulsar/pull/11492)
+- Fix incorrect connect timeout implementation. [11889](https://github.com/apache/pulsar/pull/11889)
+- Support protobuf native schema. [11388](https://github.com/apache/pulsar/pull/11388)
+
+### Python Client
+- Do not sort schema fields by default. [12232](https://github.com/apache/pulsar/pull/12232)
+- Support setting namespace for python schema. [12175](https://github.com/apache/pulsar/pull/12175)
+- Expose Client.shutdown() method. [11955](https://github.com/apache/pulsar/pull/11955)
+- Ensure producer is keeping the client object alive. [11887](https://github.com/apache/pulsar/pull/11887)
+- Support CryptoKeyReader for Reader API in python clients. [11447](https://github.com/apache/pulsar/pull/11447)
 
+### Proxy
+- Set default httpProxyTimeout to 5 minutes. [12299](https://github.com/apache/pulsar/pull/12299)
+- Fixed NPE in ProxyConnection with no auth data. [12111](https://github.com/apache/pulsar/pull/12111)
+- Set default http proxy request timeout. [11971](https://github.com/apache/pulsar/pull/11971)
+- Fixed Proxy leaking outbound connections. [11848](https://github.com/apache/pulsar/pull/11848)
+
+### Metrics
+- Add support for splitting topic and partition label in Prometheus. [12225](https://github.com/apache/pulsar/pull/12225)
+
+### Library updates
+- Upgrade netty to 4.1.68.Final. [12218](https://github.com/apache/pulsar/pull/12218)
+- Added JLine 2.x for ZK CLI tool. [12102](https://github.com/apache/pulsar/pull/12102)
+- Upgrade aircompressor to 0.20. [11790](https://github.com/apache/pulsar/pull/11790)
+- Upgrade Jetty to 9.4.43.v20210629. [11660](https://github.com/apache/pulsar/pull/11660)
+- Upgrade commons-compress to 1.21. [11345](https://github.com/apache/pulsar/pull/11345)
+- Bump Netty version to 4.1.66.Final. [11344](https://github.com/apache/pulsar/pull/11344)
+- Exclude grpc-okhttp dependency and set okhttp3 & okio version. [11025](https://github.com/apache/pulsar/pull/11025)
+- Use ubuntu:20.04 base image for Pulsar docker images. [11026](https://github.com/apache/pulsar/pull/11026)
+
+### Tiered Storage
+- Fix the potential race condition in the BlobStore readhandler. [12123](https://github.com/apache/pulsar/pull/12123)
+
+### Broker
+- AuthorizationService should use provider's canLookupAsync method. [11777](https://github.com/apache/pulsar/pull/11777)
+- Broker auto refresh bk-client certs to avoid cnx failure after cert refresh. [12107](https://github.com/apache/pulsar/pull/12107)
+- Add multi roles support for authorization. [11341](https://github.com/apache/pulsar/pull/11341)
+
+### Docker
+
+### 2.8.1
 #### 2021-09-10
 ### Broker
 - Fix the issue of all web threads get stuck when deleting a namespace [#11596](https://github.com/apache/pulsar/pull/11596)