wolfstudy commented on pull request #598:
URL: https://github.com/apache/pulsar-client-go/pull/598#issuecomment-905216297
```
==================
WARNING: DATA RACE
Read at 0x00c00071a038 by goroutine 332:
github.com/apache/pulsar-client-go/pulsar.(*producer).getPartition()
/pulsar-client-go/pulsar/producer_impl.go:281 +0xd6
github.com/apache/pulsar-client-go/pulsar.(*producer).Send()
/pulsar-client-go/pulsar/producer_impl.go:269 +0x61
github.com/apache/pulsar-client-go/pulsar.TestConsumerAddTopicPartitions()
/pulsar-client-go/pulsar/consumer_test.go:1463 +0x915
testing.tRunner()
/usr/local/go/src/testing/testing.go:1050 +0x1eb
Previous write at 0x00c00071a038 by goroutine 9:
github.com/apache/pulsar-client-go/pulsar.(*producer).internalCreatePartitionsProducers()
/pulsar-client-go/pulsar/producer_impl.go:179 +0x1e2
github.com/apache/pulsar-client-go/pulsar.(*producer).runBackgroundPartitionDiscovery.func1()
/pulsar-client-go/pulsar/producer_impl.go:153 +0xfa
Goroutine 332 (running) created at:
testing.(*T).Run()
/usr/local/go/src/testing/testing.go:1095 +0x537
testing.runTests.func1()
/usr/local/go/src/testing/testing.go:1339 +0xa6
testing.tRunner()
/usr/local/go/src/testing/testing.go:1050 +0x1eb
testing.runTests()
/usr/local/go/src/testing/testing.go:1337 +0x594
testing.(*M).Run()
/usr/local/go/src/testing/testing.go:1252 +0x2ff
main.main()
_testmain.go:432 +0x337
Goroutine 9 (running) created at:
github.com/apache/pulsar-client-go/pulsar.(*producer).runBackgroundPartitionDiscovery()
/pulsar-client-go/pulsar/producer_impl.go:145 +0x11b
github.com/apache/pulsar-client-go/pulsar.newProducer()
/pulsar-client-go/pulsar/producer_impl.go:133 +0x701
github.com/apache/pulsar-client-go/pulsar.(*client).CreateProducer()
/pulsar-client-go/pulsar/client_impl.go:150 +0xb4
github.com/apache/pulsar-client-go/pulsar.TestConsumerAddTopicPartitions()
/pulsar-client-go/pulsar/consumer_test.go:1433 +0x39a
testing.tRunner()
/usr/local/go/src/testing/testing.go:1050 +0x1eb
==================
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xed0548]
goroutine 4816 [running]:
github.com/apache/pulsar-client-go/pulsar.(*partitionConsumer).getConsumerState(0x0,
0xc000000001)
/pulsar-client-go/pulsar/consumer_partition.go:338 +0x48
github.com/apache/pulsar-client-go/pulsar.(*partitionConsumer).Close(0x0)
/pulsar-client-go/pulsar/consumer_partition.go:347 +0x55
github.com/apache/pulsar-client-go/pulsar.(*consumer).Close.func1.1(0xc0000a4cc0,
0x0)
/pulsar-client-go/pulsar/consumer_impl.go:519 +0x88
created by github.com/apache/pulsar-client-go/pulsar.(*consumer).Close.func1
/pulsar-client-go/pulsar/consumer_impl.go:517 +0x1b8
```
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