deepstream-测试发送kafka

一 kafka 环境搭建

kafka官网的安装说明：https://kafka.apache.org/quickstart，具体步骤如下：
1. 安装jdk
$ apt-get update  && apt-get install openjdk-8-jdk -y
2. 安装kafka
https://www.apache.org/dyn/closer.cgi?path=/kafka/3.3.1/kafka_2.13-3.3.1.tgz
$ tar -xzf kafka_2.13-3.3.1.tgz
$ cd kafka_2.13-3.3.1

3 开启两个服务器
# Start the ZooKeeper service
$ ./bin/zookeeper-server-start.sh config/zookeeper.properties
# start a new teminal, Start the Kafka broker service
$ ./bin/kafka-server-start.sh config/server.properties

4. 测试kafka
4.1 创建主题，这条命令只用执行一次，执行完会自己退出。
$ ./bin/kafka-topics.sh --create --topic deepstream --bootstrap-server localhost:9092

4.2 开启消费者
$ ./bin/kafka-console-consumer.sh --topic deepstream --from-beginning --bootstrap-server localhost:9092
#按ctrl+c退出

deepstream工具测试

 deepstream的安装和介绍，详见其官网是​​​​​​Quickstart Guide — DeepStream 6.1.1 Release documentation

到/opt/nvidia/deepstream/deepstream/sources/libs/kafka_protocol_adaptor下，修改test_kafka_proto_sync.cpp， 如下将topic1改成deepsream。

   //Subscribe to topics
 
   const char *topics[] = {"deepstream", "topic2"};
 
       if (msgapi_send_ptr(conn_handle, (char *)"deepstream", (const uint8_t*) SEND_MSG, \

然后安装编译器apt-get install protobuf-compiler， 执行编译，make -f Makefile.test， 然后执行./test_kafka_proto_sync，发现开启消费者的窗口能收到数据。

默认连的是这个地址#define KAFKA_CONNECT_STR "localhost;9092"。

打印如下：

./test_kafka_proto_sync
Refer to nvds log file for log output
Adapter protocol=KAFKA , version=2.0
connection signature queried=
send [0] completed
send [1] completed
send [2] completed
send [3] completed
send [4] completed
Disconnecting in 3 secs

Python deepstream-test4测试

python3 deepstream_test_4.py -i /opt/nvidia/deepstream/deepstream/samples/streams/sample_720p.h264 -p /opt/nvidia/deepstream/deepstream/lib/libnvds_kafka_proto.so   --conn-str="localhost;9092" -t deepstream -s 0 --no-display

C++ deepstream-test4测试

以deepstream-test4为例，更改配置文件，填入正确的conn-str和topic。

msgbroker:
  proto-lib: /opt/nvidia/deepstream/deepstream/lib/libnvds_kafka_proto.so
  conn-str: localhost;9092
  topic: deepstream

 这里不要写成：con-str:;<9092>，要去掉括号。然后执行./deepstream-test4-app  dstest4_config.yml，发现开启消费者的窗口能收到数据，如下所示：

 日志：

PAYLOAD_DEEPSTREAM级别

./bin/kafka-console-consumer.sh --topic deepstream --from-beginning --bootstrap-server localhost:9092
{
  "messageid" : "26ed04be-1f78-44b3-9a9b-73e69a2c4baf",
  "mdsversion" : "1.0",
  "@timestamp" : "2022-11-17T15:00:21.139Z",
  "place" : {
    "id" : "1",
    "name" : "XYZ",
    "type" : "garage",
    "location" : {
      "lat" : 30.32,
      "lon" : -40.549999999999997,
      "alt" : 100.0
    },
    "aisle" : {
      "id" : "walsh",
      "name" : "lane1",