Yunze Xu

InnerTopicProtectionTest is flaky. The testInnerTopicProduce test method fails sporadically. [example failure](https://github.com/streamnative/kop/runs/4017080539?check_suite_focus=true) ``` Error: Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 135.568 s

**Is your feature request related to a problem? Please describe.** KoP's Kafka dependency keeps 2.0.0 for a long time. To support some new features since Kafka 2.0.0, we must upgrade...

[FEATURE] Reduce test time

1

**Is your feature request related to a problem? Please describe.** - The most recent successful test (fa94761c90d92bcef92071cc5abeb301ed2d152f) took 43 min (tests 40 min): https://github.com/streamnative/kop/runs/3952242908?check_suite_focus=true - The most recent failed test...

[BUG] MetricsProviderTest is flaky

1

**Describe the bug** `MetricsProviderTest#testMetricsProvider` is very flaky in CI environment. The key point is ```java Assert.assertTrue(sb.toString().contains("kop_server_REQUEST_LATENCY{success=\"true\",quantile=\"0.99\", " + "request=\"Produce\"}")); ``` I've commented it in #636 to make CI pass. **To...

**Is your feature request related to a problem? Please describe.** #531 added the check for log end offset when fetching messages, but the check for log start offset is missed....

[BUG] testBrokerRespectsPartitionsOrderAndSizeLimits is flaky

1

**Describe the bug** Sometimes `testBrokerRespectsPartitionsOrderAndSizeLimits` may fail like ``` Error: testBrokerRespectsPartitionsOrderAndSizeLimits(io.streamnative.pulsar.handlers.kop.KafkaApisTest) Time elapsed: 2.08 s

**Is your feature request related to a problem? Please describe.** KoP currently supports `PLAIN` mechanism only. It transfers client's token in `org.apache.kafka.common.security.plain.PlainLoginModule` to Pulsar broker's JWT authentication. Kafka supports more...

**Describe the bug** When running the integration tests, some tests may failed because `Container startup failed`. The Golang client containers are more easily to fail. e.g. the `golang-confluent-kafka` image ```...

[BUG] DistributedClusterTest CI failed but local tests passed

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See #183 The DistributedClusterTest CI failed with Github Action: ``` 2020-09-23T08:54:33.4397994Z [INFO] Running io.streamnative.pulsar.handlers.kop.DistributedClusterTest 2020-09-23T08:54:55.9560950Z [ERROR] Tests run: 3, Failures: 3, Errors: 0, Skipped: 0, Time elapsed: 22.468 s

[Bug] Cannot build Python wheels for macOS

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### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Version - OS: macOS Monterey 12.3.1 - CMake version: 3.21.1 - Clang++ version: Apple...