通过 docker-compose 部署 Flink

概要

通过 docker-compose 以 Session Mode 部署 flink

前置依赖

• Docker、docker-compose
• flink 客户端
• docker-compose.yml

version: "2.2"
services:
  jobmanager:
    image: flink:1.17.2
    ports:
      - "8081:8081"
    command: jobmanager
    volumes:
      - ${
   PWD}/checkpoint:/opt/flink/checkpoint
      - ${
   PWD}/savepoint:/opt/flink/savepoint
    environment:
      - |
        FLINK_PROPERTIES=
        jobmanager.rpc.address: jobmanager

  taskmanager:
    image: flink:1.17.2
    depends_on:
      - jobmanager
    command: taskmanager
    scale: 1
    volumes:
      - ${
   PWD}/checkpoint:/opt/flink/checkpoint
      - ${
   PWD}/savepoint:/opt/flink/savepoint
    environment:
      - |
        FLINK_PROPERTIES=
        jobmanager.rpc.address: jobmanager
        taskmanager.numberOfTaskSlots: 3

部署

# 下载 docker、docker-compose

# docker-compose 部署
# 复制上述 docker-compose.yml 内容
$ vim docker-compose.yml

# 创建 savepoint、checkpoint 目录用于保存状态数据
$ mkdir savepoint checkpoint

$ docker-compose up -d

提交任务

# 下载 flink 客户端
$ wget https://archive.apache.org/dist/flink/flink-1.17.0/flink-1.17.0-bin-scala_2.12.tgz
$ tar xvf flink-1.17.0-bin-scala_2.12.tgz
$ cd flink-1.17.0-bin-scala_2.12

# 提交任务
$ bin/flink run -d -m 192.168.56.103:8081 -c com.xchenhao.Demo flink-cdc-1.0-SNAPSHOT-jar-with-dependencies.jar

# 查看任务列表
$ bin/flink list -m 192.168.56.103:8081
Waiting for response...
------------------ Running/Restarting Jobs -------------------
02.02.2024 16:45:01 : 9f70a7c1430d609eaa3434c4f30d1e93 : Flink-CDC (RUNNING)
--------------------------------------------------------------
No scheduled jobs

Web UI 查看

浏览器访问目标端口 192.168.56.103:8081

其它常用命令

• 从指定 checkpoint 恢复任务

bin/flink run -d -m 192.168.56.103:8081 -s file:///opt/flink/checkpoint/47bea16a8ffcb51beff21ed1c7297dc1/chk-129773 -c com.xchenhao.Demo flink-cdc-1.0-SNAPSHOT-jar-with-dependencies.jar

• 从指定 savepoint 恢复任务

bin/flink run -d -m 192.168.56.103:8081 -s file:///opt/flink/savepoint/savepoint-63712d-d7cbfee1ede9  -c com.xchenhao.Demo flink-cdc-1.0-SNAPSHOT-jar-with-dependencies.jar

• 保存 savepoint

bin/flink savepoint 9f70a7c1430d609eaa3434c4f30d1e93 file:///opt/flink/savepoint -m 192.168.56.103:8081

• 取消任务

bin/flink cancel 9f70a7c1430d609eaa3434c4f30d1e93 -m 192.168.56.103:8081

• 停止任务并保存 savepoint

bin/flink stop 9f70a7c1430d609eaa3434c4f30d1e93 -p file:///opt/flink/savepoint -m 192.168.56.103:8081

参考

• https://blog.csdn.net/qq_41538097/article/details/129113866 docker 搭建 flink 并上传任务
• https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/resource-providers/standalone/docker/#flink-with-docker-compose Flink with Docker Compose
• https://flink.apache.org/downloads/ Apache Flink® Downloads
• https://blog.csdn.net/qq_26838315/article/details/125246223 Flink部署模式介绍(session,per-job,application)
• https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/resource-providers/standalone/docker/#session-mode-1 Session Mode