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网站正在建设中模板,点赞分享打赏 wordpress,搜了网,永川网站建设公司Standalone-HA模式安装概述Flink的Standalone-HA#xff08;高可用#xff09;模式通过ZooKeeper实现JobManager的故障转移#xff0c;避免单点故障。以下为详细安装步骤。环境准备确保已安装JDK 8/11并配置JAVA_HOME环境变量。下载Flink二进制包#xff08;如flink-1.17.1…Standalone-HA模式安装概述Flink的Standalone-HA高可用模式通过ZooKeeper实现JobManager的故障转移避免单点故障。以下为详细安装步骤。环境准备确保已安装JDK 8/11并配置JAVA_HOME环境变量。下载Flink二进制包如flink-1.17.1-bin-scala_2.12.tgz。准备至少3台节点1个Master2个Worker或更多所有节点需配置SSH免密登录。安装ZooKeeper在至少3台节点上部署ZooKeeper集群推荐奇数台。配置zoo.cfg文件示例内容tickTime2000 initLimit10 syncLimit5 dataDir/data/zookeeper clientPort2181 server.1zk-node1:2888:3888 server.2zk-node2:2888:3888 server.3zk-node3:2888:3888在每台节点的dataDir目录下创建myid文件内容对应server.x中的编号如1、2、3。配置Flink Standalone-HA解压Flink包至所有节点相同路径如/opt/flink。修改conf/flink-conf.yamlhigh-availability: zookeeper high-availability.storageDir: hdfs://namenode:8020/flink/ha high-availability.zookeeper.quorum: zk-node1:2181,zk-node2:2181,zk-node3:2181 high-availability.zookeeper.path.root: /flink high-availability.cluster-id: /default-clusterhigh-availability.storageDir需配置为HDFS或共享存储路径。修改conf/masters文件指定多个JobManager节点master-node1:8081 master-node2:8081修改conf/workers文件添加所有TaskManager节点worker-node1 worker-node2 worker-node3启动集群在ZooKeeper集群启动后执行以下命令启动Flink HA集群# 在Flink主目录执行 ./bin/start-cluster.sh验证JobManager状态# 查看Web UI默认8081端口 curl http://master-node1:8081 # 或通过ZooKeeper检查注册节点 zkCli.sh -server zk-node1:2181 ls /flink/default-cluster/leader/rest_server故障转移测试手动停止主JobManager如master-node1./bin/jobmanager.sh stop观察备用JobManagermaster-node2是否自动接管任务Web UI应切换到新主节点。注意事项确保所有节点时间同步NTP服务。HA模式下建议配置HDFS作为high-availability.storageDir避免本地存储单点故障。防火墙需开放端口JobManager8081、TaskManager数据传输端口、ZooKeeper2181, 2888, 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