krvarma opened a new issue #250:
URL: https://github.com/apache/pulsar-client-go/issues/250
#### Expected behavior
pulsar-client-go SDK should work on ARM without any issues
#### Actual behavior
The SDK crashed on ARM-based devices when trying to Subscribe. The crash
occurs when we call `client.Subscribe`. The crash occurs at this point on the
code.
```
consumer, err := client.Subscribe(pulsar.ConsumerOptions{
Topic: "my-topic",
SubscriptionName: "first-subscription",
Type: pulsar.Exclusive,
})
```
#### Steps to reproduce
Run the following simple consumer go program on ARM-based device (Tested on
Raspberry Pi 3 Model B+).
```
package main
import (
"fmt"
"log"
"os"
"context"
"github.com/apache/pulsar-client-go/pulsar"
)
func main() {
client, err := pulsar.NewClient(pulsar.ClientOptions{URL:
"pulsar://localhost:6650"})
if err != nil {
log.Fatal(err)
}
defer client.Close()
consumer, err := client.Subscribe(pulsar.ConsumerOptions{
Topic: "my-topic",
SubscriptionName: "first-subscription",
Type: pulsar.Exclusive,
})
if err != nil {
log.Fatal(err)
}
defer consumer.Close()
ctx := context.Background()
// Listen indefinitely on the topic
for {
msg, err := consumer.Receive(ctx)
if err != nil { log.Fatal(err) }
// Do something with the message
fmt.Printf("Message Received: %v\n", string(msg.Payload()))
if err == nil {
// Message processed successfully
consumer.Ack(msg)
} else {
// Failed to process messages
consumer.Nack(msg)
}
}
}
```
#### Crash log
```
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x12324]
goroutine 1 [running]:
runtime/internal/atomic.goXadd64(0x88e194, 0x1, 0x0, 0x37ca01, 0xca01f8)
/usr/lib/go-1.11/src/runtime/internal/atomic/atomic_arm.go:96 +0x1c
github.com/apache/pulsar-client-go/pulsar/internal.(*rpcClient).NewRequestID(0x88e180,
0xca01f8, 0xdf8d40)
/home/pi/go/pkg/mod/github.com/apache/[email protected]/pulsar/internal/rpc_client.go:158
+0x34
github.com/apache/pulsar-client-go/pulsar.(*client).TopicPartitions(0xdf8c00,
0x39a6c3, 0x8, 0x878800, 0xcaa180, 0x0, 0x39b268, 0xa)
/home/pi/go/pkg/mod/github.com/apache/[email protected]/pulsar/client_impl.go:135
+0x68
github.com/apache/pulsar-client-go/pulsar.internalTopicSubscribe(0xdf8c00,
0x39a6c3, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/home/pi/go/pkg/mod/github.com/apache/[email protected]/pulsar/consumer_impl.go:133
+0x110
github.com/apache/pulsar-client-go/pulsar.topicSubscribe(0xdf8c00, 0x39a6c3,
0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/home/pi/go/pkg/mod/github.com/apache/[email protected]/pulsar/consumer_impl.go:220
+0x48
github.com/apache/pulsar-client-go/pulsar.newConsumer(0xdf8c00, 0x39a6c3,
0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/home/pi/go/pkg/mod/github.com/apache/[email protected]/pulsar/consumer_impl.go:94
+0x158
github.com/apache/pulsar-client-go/pulsar.(*client).Subscribe(0xdf8c00,
0x39a6c3, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/home/pi/go/pkg/mod/github.com/apache/[email protected]/pulsar/client_impl.go:112
+0x28
main.main()
/home/pi/consumer_rpi.go:19 +0xd0
exit status 2
```
#### System configuration
_Device_: Raspberry Pi Model B+
_OS_: Raspbian Buster Lite
_pulsar-client-go SDK version_: 0.1.0
_Pulsar version_: 2.5.1
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