- 기본설치방법
아래링크의-DeepStream SDK 3.0 설치 참조
https://ahyuo79.blogspot.com/2019/06/deepstream-sdk-30-jetpack-42-411.html
NVIDIA msgbroker 관련부분
https://devtalk.nvidia.com/default/topic/1048534/deepstream-for-tesla/deepstream-test4-app-stalled-after-the-first-few-frames/
https://devtalk.nvidia.com/default/topic/1044365/deepstream-for-tesla/using-kafka-protocol-for-retrieving-data-from-a-deepstream-pipeline-/
NVIDIA Analytic Server ( Smart PArking Sytstem)
https://github.com/NVIDIA-AI-IOT/deepstream_360_d_smart_parking_application/
Kafka Site
https://kafka.apache.org/intro.html
Apach Kafka 구조 파악
https://epicdevs.com/17
https://www.joinc.co.kr/w/man/12/Kafka/chatting
1.1 DeepStream SDK 3.0 TEST 4 부분
아래 링크의 3.4 Deepstream TEST 4 (Kafka) 부분 다시 참조
https://ahyuo79.blogspot.com/2019/06/deepstream-sdk-30-jetpack-42-411.html
$ vi deepstream_test4.app.c #define PROTOCOL_ADAPTOR_LIB "/usr/lib/aarch64-linux-gnu/tegra/libnvds_kafka_proto.so" #define CONNECTION_STRING "127.0.0.1;9092;dsapp2"
- 우선 아래의 Kafka를 설치
- 설치완료 후 dsapp2의 topic 생성
- 상위 수정된 소스 make 후 deepstream-test4-app 실행
- 상위 topic으로 받은 메시지를 bin/kafka-console-consumer.sh 이용하여 확인
이 소스는 Gst-msgconv 와 Gst-msgbroker 를 같이 사용하는 예제이다.
Gst-msgconv는 현재 config file을 별도로 지정하여 dstest4_msgconv_config.txt 설정하고 이 설정에 해당하는 소스부분이 상위 소스에 있다.
Gst-msgbroker 는 받은 metadata를 Kafka에게 전송하는 역할이며, 현재 모두 JSON Format이다.
$ cd /usr/local/kafka
$ bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic dsapp2 --from-beginning //deepstream-test4-app 이 보낸 metadata 를 json으로 보냄
{
"messageid" : "220a8cea-9dc5-448c-8da6-cc9998a5fefe",
"mdsversion" : "1.0",
"@timestamp" : "2019-07-22T02:01:54.067Z",
"place" : {
"id" : "1",
"name" : "XYZ",
"type" : "garage",
"location" : {
"lat" : 30.32,
"lon" : -40.549999999999997,
"alt" : 100.0
},
"aisle" : {
"id" : "walsh",
"name" : "lane1",
"level" : "P2",
"coordinate" : {
"x" : 1.0,
"y" : 2.0,
"z" : 3.0
}
}
},
"sensor" : {
"id" : "CAMERA_ID",
"type" : "Camera",
"description" : "\"Entrance of Garage Right Lane\"",
"location" : {
"lat" : 45.293701446999997,
"lon" : -75.830391449900006,
"alt" : 48.155747933800001
},
"coordinate" : {
"x" : 5.2000000000000002,
"y" : 10.1,
"z" : 11.199999999999999
}
},
"analyticsModule" : {
"id" : "XYZ",
"description" : "\"Vehicle Detection and License Plate Recognition\"",
"source" : "OpenALR",
"version" : "1.0",
"confidence" : 0.0
},
"object" : {
"id" : "db521849-00f8-44f6-b20c-daf3111b6ccd",
"speed" : 0.0,
"direction" : 0.0,
"orientation" : 0.0,
"vehicle" : {
"type" : "sedan",
"make" : "Bugatti",
"model" : "M",
"color" : "blue",
"licenseState" : "CA",
"license" : "XX1234",
"confidence" : 0.0
},
"bbox" : {
"topleftx" : 0,
"toplefty" : 0,
"bottomrightx" : 0,
"bottomrighty" : 0
},
"location" : {
"lat" : 0.0,
"lon" : 0.0,
"alt" : 0.0
},
"coordinate" : {
"x" : 0.0,
"y" : 0.0,
"z" : 0.0
}
},
"event" : {
"id" : "b63d0d65-eaf8-44c5-be51-979a009f8a33",
"type" : "moving"
},
"videoPath" : ""
}
.... // Ctrl+C 로 정지
2. Apache Kafka 설치 작업 및 테스트
Apache Kafka를 설치를 위해서 Apache Zookeeper가 필요하기에 아래와 같이 설치하다.
- apt update 와 Java JDK or default-jre 설치
$ sudo apt-get update $ sudo apt-get install openjdk-8-jdk
2.1 Apache zookeeper 기본설치
zookeeper site
https://zookeeper.apache.org/releases.html
package download
https://www-eu.apache.org/dist/zookeeper/
http://www-us.apache.org/dist/zookeeper
http://apache.mirror.globo.tech/zookeeper
- zookeeper 설치 (apt 이용)
$ sudo apt-get install zookeeperd $ find / -name zkServer.sh 2> /dev/null /usr/share/zookeeper/bin/zkServer.sh
- package download 설치
$ wget https://www-eu.apache.org/dist/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz $ tar zxvf zookeeper-3.4.14.tar.gz $ sudo mv zookeeper-3.4.14/ /usr/local/zookeeper $ sudo chown -R root:root /usr/local/zookeeper $ find / -name zkServer.sh 2> /dev/null // 좀더 최신 version이라 좀 다르다. /usr/local/zookeeper/zookeeper-contrib/zookeeper-contrib-rest/src/test/zkServer.sh /usr/local/zookeeper/zookeeper-contrib/zookeeper-contrib-zkpython/src/test/zkServer.sh /usr/local/zookeeper/zookeeper-client/zookeeper-client-c/tests/zkServer.sh /usr/local/zookeeper/bin/zkServer.sh /usr/local/zookeeper/zookeeper-recipes/zookeeper-recipes-lock/src/main/c/tests/zkServer.sh /usr/local/zookeeper/zookeeper-recipes/zookeeper-recipes-queue/src/main/c/tests/zkServer.sh
2.2 Apache Zookeeper Service 등록
사용하기 편하기 위해서 아래와 같이 systemd에 Service로 등록을 한다.
- systemd 에 zookeeper.service 등록
$ sudo vi /etc/systemd/system/zookeeper.service [Unit] Description=zookeeper-server After=network.target [Service] Type=forking User=root Group=root SyslogIdentifier=zookeeper-server WorkingDirectory=/usr/share/zookeeper Restart=on-failure RestartSec=0s ExecStart=/usr/share/zookeeper/bin/zkServer.sh start ExecStop=/usr/share/zookeeper/bin/zkServer.sh stop
- system service 등록 및 확인
$ sudo systemctl daemon-reload $ sudo systemctl enable zookeeper.service $ sudo systemctl start zookeeper.service $ sudo systemctl status zookeeper.service
- zookeeper 상태체크
$ netstat -nlp|grep 2181 (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) tcp6 0 0 :::2181 :::* LISTEN - $ sudo /usr/share/zookeeper/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /etc/zookeeper/conf/zoo.cfg Error contacting service. It is probably not running. or $ echo status | nc 127.0.0.1 2181 Zookeeper version: 3.4.10-3--1, built on Sat, 03 Feb 2018 14:58:02 -0800 Clients: /127.0.0.1:45894[0](queued=0,recved=1,sent=0) Latency min/avg/max: 0/0/0 Received: 3 Sent: 2 Connections: 1 Outstanding: 0 Zxid: 0x0 Mode: standalone Node count: 4
2.3 Apache Kafka 관련 설치 및 서비스 등록
Apache Kafka
https://kafka.apache.org/
Package download (지원되는 Version확인)
https://www-eu.apache.org/dist/kafka
http://www-us.apache.org/dist/kafka
http://apache.mirror.globo.tech/kafka
Download하면서 Version이 혼동이 되었는데, 아래 사이트에서 정확하게 알게되었다.
Kafka가 Scala 언어로 개발되었는데, 호환성문제로 Java로 이식되었다고 한다.
Version 은 File에서 두개로 표시를 한다
e.g kafka/2.2.1/kafka_2.12-2.2.1.tgz (Scala:2.12 , Kafka:2.2.1)
현재 Download 하는 사이트들을 보니 현재는 Kafka 2.x.x 만 지원을 하고 있어서 이 기준으로 변경
- Kafka Download 및 기본 테스트 진행
$ wget http://www-us.apache.org/dist/kafka/2.2.1/kafka_2.12-2.2.1.tgz //download 가능 $ tar zxvf kafka_2.12-2.2.1.tgz $ sudo mv kafka_2.12-2.2.1 /usr/local/kafka $ cd /usr/local/kafka $ vi config/server.properties // Log Data 설정된 장소확인 및 변경 log.dirs=/tmp/kafka-logs/
상위 log.dirs 은 만약 topic를 생성하면 이곳에서 관련 data를 확인이 가능하다.
- Kafka Service 등록
$ sudo vi /etc/systemd/system/kafka.service // 새로운 File 생성 [Unit] Description=kafka-server After=network.target [Service] Type=simple User=root Group=root SyslogIdentifier=kafka-server WorkingDirectory=/usr/local/kafka Restart=no RestartSec=0s ExecStart=/usr/local/kafka/bin/kafka-server-start.sh /usr/local/kafka/config/server.properties ExecStop=/usr/local/kafka/bin/kafka-server-stop.sh $ systemctl daemon-reload $ systemctl enable kafka.service $ systemctl start kafka.service $ systemctl status kafka.service
- Kafka 동작확인
$ sudo apt install lsof $ sudo lsof -i :2181 //Zookeeper 만 동작될 때 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 18819 zookeeper 43u IPv6 759187 0t0 TCP *:2181 (LISTEN) $ sudo lsof -i :2181 //Zookeeper 와 Kafka 동작될 때 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 22350 nvidia 109u IPv6 767085 0t0 TCP *:2181 (LISTEN) java 22350 nvidia 110u IPv6 761679 0t0 TCP localhost:2181->localhost:46018 (ESTABLISHED) java 22675 nvidia 109u IPv6 766151 0t0 TCP localhost:46018->localhost:2181 (ESTABLISHED)
2.4 Kafka TEST 방법
Kafka는 File기반으로 Topic을 만들고, 이를 통신하는 구조라고 한다.
아래과 같이 새로운 testTopic을 만들고 이를 MSG를 전송해보고 받아보자.
- Kafka에서 testTopic 생성 및 확인
$ cd /usr/local/kafka $ bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic testTopic Created topic "testTopic". $ bin/kafka-topics.sh --list --zookeeper localhost:2181 // 생성된 list testTopic $ ls //tmp/kafka-logs/ // testTopic 확인 .. testTopic-0/
- Kafka로 MSG 전송 (testTopic)
$ cd /usr/local/kafka $ bin/kafka-console-producer.sh --broker-list localhost:9092 --topic testTopic >Welcome to kafka >This is my first topic // Ctrol+c
- Kafka에서 받은 메시지 확인 (testTopic)
$ cd /usr/local/kafka $ bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic testTopic --from-beginning Welcome to kafka This is my first topic
Kafka 설치방법들
https://zzsza.github.io/data/2018/07/24/apache-kafka-install/
https://tecadmin.net/install-apache-kafka-ubuntu/
https://linuxhint.com/install-apache-kafka-ubuntu/
https://jwon.org/install-kafka-on-ubuntu/
https://www.digitalocean.com/community/tutorials/how-to-install-apache-kafka-on-ubuntu-18-04
2.5 systemctl 사용법
- systemd default target 확인
$ systemctl get-default multi-user.target $ sudo systemctl set-default graphical.target // X-Windows Log In 변경 $ systemctl get-default graphical.target
- systemd target list 확인
$ systemctl list-units --type target UNIT LOAD ACTIVE SUB DESCRIPTION basic.target loaded active active Basic System bluetooth.target loaded active active Bluetooth cryptsetup.target loaded active active Encrypted Volumes getty.target loaded active active Login Prompts graphical.target loaded active active Graphical Interface local-fs-pre.target loaded active active Local File Systems (Pre) local-fs.target loaded active active Local File Systems multi-user.target loaded active active Multi-User System network-online.target loaded active active Network is Online network.target loaded active active Network nfs-client.target loaded active active NFS client services paths.target loaded active active Paths remote-fs-pre.target loaded active active Remote File Systems (Pre) remote-fs.target loaded active active Remote File Systems slices.target loaded active active Slices sockets.target loaded active active Sockets sound.target loaded active active Sound Card swap.target loaded active active Swap sysinit.target loaded active active System Initialization time-sync.target loaded active active System Time Synchronized timers.target loaded active active Timers LOAD = Reflects whether the unit definition was properly loaded. ACTIVE = The high-level unit activation state, i.e. generalization of SUB. SUB = The low-level unit activation state, values depend on unit type.
- systemd default target 확인
$ systemctl get-default multi-user.target $ systemctl get-default graphical.target
systemctl 사용법
https://www.lesstif.com/pages/viewpage.action?pageId=24445064
System Service 등록방법
https://fmd1225.tistory.com/93
https://pinedance.github.io/blog/2017/09/12/Ubuntu-16.04-system-service-%EB%93%B1%EB%A1%9D%ED%95%98%EA%B8%B0
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