Dear Pulsar enthusiast, This is the Pulsar community weekly update for 2020-07-25 ~ 2020-07-31, with updates on Pulsar clients, Functions, broker, transaction, security, and so on.
This Pulsar community weekly update is also available at https://streamnative.io/weekly/2020/2020-07/2020-07-31-pulsar-weekly *All Pulsar community weekly updates are available at **https://streamnative.io/weekly/ <https://streamnative.io/weekly/>.* *===============Notable Feature================- [Broker] Support setting backlog quota on topic level. https://github.com/apache/pulsar/pull/7646 <https://github.com/apache/pulsar/pull/7646>- [Pulsar client] Remove UUID generation on sending message. https://github.com/apache/pulsar/pull/7705 <https://github.com/apache/pulsar/pull/7705>- [Pulsar client] Close the hanging thread after Pulsar Admin Java Client is closed. https://github.com/apache/pulsar/pull/7687 <https://github.com/apache/pulsar/pull/7687>- [Pulsar client] Fix backward compatibility issues with batch index acknowledgment. https://github.com/apache/pulsar/pull/7655 <https://github.com/apache/pulsar/pull/7655>- [Pulsar client] Support configuring `DeleteInactiveTopic` in namespace policy. https://github.com/apache/pulsar/pull/7598 <https://github.com/apache/pulsar/pull/7598>- [Functions] Add additional metrics for the Pulsar Function Worker. https://github.com/apache/pulsar/pull/7685 <https://github.com/apache/pulsar/pull/7685>- [Transaction] Implement the Transaction Buffer Client. https://github.com/apache/pulsar/pull/6544 <https://github.com/apache/pulsar/pull/6544>- [Security] Use Consume/Produce/Lookup interfaces for specific operations in `allowTopicOperation`. https://github.com/apache/pulsar/pull/7587 <https://github.com/apache/pulsar/pull/7587>================Notable Bug Fix================- [Pulsar client] Fix race condition on the closed consumer while reconnecting to the broker. https://github.com/apache/pulsar/pull/7589 <https://github.com/apache/pulsar/pull/7589>- [Pulsar client] Fix segment crashes that are caused by race condition of the timer in the C++ client. https://github.com/apache/pulsar/pull/7572 <https://github.com/apache/pulsar/pull/7572>- [Pulsar client] Fix the issue that the `batchReceiveAsync` is not completed exceptionally when the consumer is closed. https://github.com/apache/pulsar/pull/7661 <https://github.com/apache/pulsar/pull/7661>- [Pulsar client] Fix batch index filtering issue in the consumer. https://github.com/apache/pulsar/pull/7654 <https://github.com/apache/pulsar/pull/7654>- [Pulsar client] Fix the time unit error of the producer stats recorder. https://github.com/apache/pulsar/pull/7670 <https://github.com/apache/pulsar/pull/7670>- [Broker] Fix race condition on deleted topic with active readers. https://github.com/apache/pulsar/pull/7715 <https://github.com/apache/pulsar/pull/7715>- [Broker] Introduce a timeout of opening managed ledger. https://github.com/apache/pulsar/pull/7506 <https://github.com/apache/pulsar/pull/7506>- [Broker] Fix the issue that deduplication cursor is not deleted after the message deduplication is disabled. https://github.com/apache/pulsar/pull/7656 <https://github.com/apache/pulsar/pull/7656>- [Broker] Fix NPE when using `advertisedListeners`. https://github.com/apache/pulsar/pull/7620 <https://github.com/apache/pulsar/pull/7620>================Event / News================- [Pulsar Summit] The first-ever Pulsar Summit Virtual Conference 2020 was held on June 17 - 18. This two-day digital event featured more than 30 sessions from top Pulsar contributors and developers. All video recordings and slides are available at [here](https://streamnative.io/resource#pulsar-summit <https://streamnative.io/resource#pulsar-summit>). - [TGIP] Weekly live stream about Pulsar and its ecosystem. - 017: Pulsar Multi-Tenancy Best Practices - https://www.youtube.com/watch?v=2zGBJNLhO44 <https://www.youtube.com/watch?v=2zGBJNLhO44>- [Webinar] - 07/28: StreamNative Webinar - "How to Operate Pulsar in Production" by Matteo Merli, Joe Frances, Addison Higham, and Sijie Guo Recording: https://www.youtube.com/watch?v=mncXc_T6JkU <https://www.youtube.com/watch?v=mncXc_T6JkU>================Blog / Article================- Pulsar vs. Kafka: A More Accurate Perspective from Use Cases and Community to Features and Performance - https://streamnative.io/whitepaper/pulsar-vs-kafka <https://streamnative.io/whitepaper/pulsar-vs-kafka>If we miss anything, welcome to reply to this thread, thank you.Cheers,Jia Zhai, Huanli Meng*
