[Pulsar Community Weekly Update] 2021-04-05 ~ 2021-04-11

[Huanli Meng <hu...@streamnative.io.INVALID>]

Dear Pulsar enthusiast,

This is the Pulsar community weekly update for 2021-04-05 ~ 2021-04-11,
with updates on Pulsar client, broker, and so on.

This Pulsar community weekly update is also available at
https://streamnative.io/weekly/2021/2021-04/2021-04-12-pulsar-weekly.

*All Pulsar community weekly updates are available at
**https://streamnative.io/weekly/
<https://streamnative.io/weekly/>.*

*===============*

*Pulsar Highlight================*
[Schema Registry] Introduce a new high-level `GenericObject` interface that
represents every logic value on the Pulsar topic. It supports writing sinks
that work with every Schema type.

by (@[eolivelli](https://github.com/eolivelli))

*===============*
*Development================*
- [PIP-82] [Broker] Add a task to publish resource usage to a topic.

    https://github.com/apache/pulsar/pull/10008 (@[bharanic-dev](
https://github.com/bharanic-dev))

*===============*
*Notable Feature================*
- [Test] Refactor existing Pulsar Function unit tests.

    https://github.com/apache/pulsar/pull/10125 (@[david-streamlio](
https://github.com/david-streamlio))

- [C++] Support configuring the memory limit from the C++ API.

    https://github.com/apache/pulsar/pull/10145 (@[merlimat](
https://github.com/merlimat))

- [Functions] Expose Prometheus metrics for Pulsar functions in the local
run mode.

    https://github.com/apache/pulsar/pull/10156 (@[jerrypeng](
https://github.com/jerrypeng))

- [Schema Registry] Implement `GenericObject`, which allows `GenericRecord`
to wrap any Java object.

    https://github.com/apache/pulsar/pull/10057 (@[eolivelli](
https://github.com/eolivelli))

- [Admin] Support setting namespace-level and topic-level policies for the
non-persistent dispatcher.

    https://github.com/apache/pulsar/pull/10121 (@[315157973](
https://github.com/315157973))

- [C++] Add `/opt/homebrew/` as a possible path for OpenSSL on Mac OS.

    https://github.com/apache/pulsar/pull/10141 (@[merlimat](
https://github.com/merlimat))

- [Schema Registry] Support `KeyValue` in `Message#getValue()`.

    https://github.com/apache/pulsar/pull/10107 (@[eolivelli](
https://github.com/eolivelli))

- [IO] Support developing sinks that support Schema but do not set Schema
at the build time.

    https://github.com/apache/pulsar/pull/10034 (@[eolivelli](
https://github.com/eolivelli))

*===============*
*Notable Bug Fix================*
- [Client] Fix the issue that `ClientConfigurationData`'s objects are not
effectively equal.

    https://github.com/apache/pulsar/pull/10091 (@[dlg99](
https://github.com/dlg99))

- [Transaction] Fix the NPE that occurs if transactions are not enabled
when you try to create a transaction.

    https://github.com/apache/pulsar/pull/10139 (@[linlinnn](
https://github.com/linlinnn))

- [Broker] Fix the issue that some partitions are stuck when additional
consumers are added in the Key_shared subscription mode.

    https://github.com/apache/pulsar/pull/10096 (@[baomingyu](
https://github.com/baomingyu))

- [Transaction] Fix the issue that the transaction log cannot be recovered.

    https://github.com/apache/pulsar/pull/10146 (@[congbobo184](
https://github.com/congbobo184))

- [Transaction] Fix the issue that occurs when aborting the transaction
retry.

    https://github.com/apache/pulsar/pull/10131 (@[congbobo184](
https://github.com/congbobo184))

- [Broker] Fix the issue that the consumer is blocked after receiving retry
messages many times if the consumer enables the retry feature and sets the
retry topic in `DeadLetterPolicy`.

    https://github.com/apache/pulsar/pull/10078 (@[gaoran10](
https://github.com/gaoran10))

- [Flaky Test] Fix the
`SimpleProducerConsumerTestStreamingDispatcherTest.testRedeliveryFailOverConsumer`
flaky test.

    https://github.com/apache/pulsar/pull/10118 (@[lhotari](
https://github.com/lhotari))

- [C++] Fix the race condition in `MemoryLimitController`.

    https://github.com/apache/pulsar/pull/10142 (@[merlimat](
https://github.com/merlimat))

- [C++] Fix the issue that the C++ client fails to release the semaphore
and reserved memory in case of send timeouts.

    https://github.com/apache/pulsar/pull/10144 (@[merlimat](
https://github.com/merlimat))

- [Broker] Fix the `IllegalStateException` exception in
`PersistentReplicator`.

    https://github.com/apache/pulsar/pull/10098 (@[lhotari](
https://github.com/lhotari))

*================Event / News================*- [TGIP] Weekly live stream
about Pulsar and its ecosystem.

  - All video recordings are available at [here](
https://streamnative.io/resource#tgip).

- [Intro to Apache Pulsar 101] Monthly live stream about Pulsar, including
concepts, architecture, and design.

    - All video recordings are available at [here](
https://streamnative.io/en/resource#intro-to-apache-pulsar-101).

- Apache Pulsar Hackathon

    Sign-up:
https://www.eventbrite.com/e/apache-pulsar-hackathon-2021-tickets-143906003731

- Pulsar Virtual Summit North America 2021

    Sign-up: https://hopin.com/events/pulsar-summit-north-america-2021

*If we miss anything, welcome to reply to this thread, thank you.*



*Cheers,Yunze Xu, Huanli Meng*