flink集群安装部署
standalone集群模式
- 必须依赖
- 必须的软件
- JAVA_HOME配置
- flink安装
- 配置flink
- 启动flink
- 添加Jobmanager/taskmanager 实例到集群
- 个人真实环境实践安装步骤
必须依赖
必须的软件
flink运行在所有类unix环境中，例如：linux、mac、或者cygwin，并且集群由一个master节点和一个或者多个worker节点。在你开始安装系统之前，确保你有在每个节点上安装以下软件。
- java 1.8.x或者更高
- ssh
如果你的集群没有这些软件，你需要安装或者升级他们。注意：一般linux服务器上都有ssh，但是java是需要自己安装的。
在集群的所有节点上需要配置SSH免密码登录。
JAVA_HOME配置
flink需要在集群的所有节点(master节点和worker节点)配置JAVA_HOME，指向安装在机器上的java。
你可以在这个文件中进行配置：conf/flink-conf.yaml 通过env.java.home这个key。
flink安装
去下载页面随时下载安装包。确保选择flink安装包匹配到你的hadoop版本。如果你不打算使用hadoop的话，可以选择任意版本。
下载最新版本之后，把安装包上传到你的master节点，然后解压：
tar xzf flink-*.tgz
cd flink-*配置flink
解压之后，需要修改conf/flink-conf.yaml
设置jobmanager.rpc.address的值为master节点的ip或者主机名。你也可以定义每个节点上允许jvm申请的最大内存，使用jobmanager.heap.mb和taskmanager.heap.mb
这两个参数的值的单位都是MB，如果有一些节点想要分配更多的内存，可以通过覆盖这个参数的默认值 FLINK_TM_HEAP
最后，你需要提供一个节点列表作为worker节点。因为，类似于HDFS配置，修改文件conf/slaves 然后在里面输入每一个worker节点的ip/hostname 。每一个worker节点将运行一个taskmanager程序。
下面的例子说明了三个节点的配置：(ip地址从10.0.0.1到10.0.0.3 对应的主机名 master worker1 worker2)并显示配置文件的内容(需要访问所有机器的相同路径)
vi /path/to/flink/conf/flink-conf.yaml
jobmanager.rpc.address: 10.0.0.1
vi /path/to/flink/conf/slaves
10.0.0.2
10.0.0.3flink目录必须在每一个worker节点的相同路劲。你可以使用一个共享的NFS目录，或者拷贝整个flink目录到每一个worker节点。
有关配置的详细信息，请参见详细的配置页面进行查看。
下面这几个参数的配置值非常重要。
- Jobmanager可用内存(jobmanager.heap.mb)
- taskmanager可用内存(taskmanager.heap.mb)
- 每个机器可用cpu数量(taskmanager.numberOfTaskSlots)
- 集群中的总cpu数量(parallelism.default)
- 节点临时目录(taskmanager.tmp.dirs)
启动flink
下面的脚本将会在本机启动一个jobmanager节点，然后通过SSH连接到slaves文件中的所有worker节点，在worker节点上面启动taskmanager。现在flink启动并且运行。在本地运行的jobmanager现在将会通过配置的RPC端口接收任务。
确认你在master节点并且进入flink目录：
bin/start-cluster.sh停止flink，需要使用stop-cluster.sh脚本
添加jobmanager或者taskmanager实例到集群
你可以通过bin/jobmanager.sh脚本和bin/taskmanager.sh脚本向一个运行中的集群添加jobmanager和taskmanager。
添加jobmanager
bin/jobmanager.sh ((start|start-foreground) cluster)|stop|stop-all添加taskmanager
bin/taskmanager.sh start|start-foreground|stop|stop-all个人真实环境实践安装步骤
以上的内容来源于官网文档翻译
下面的内容来自于本人在真实环境的一个安装步骤：
集群环境规划：三台机器，一主两从
hadoop100 jobManager
hadoop101 taskManager
hadoop102 taskManager
注意：
1：这几台节点之间需要互相配置好SSH免密码登录。(至少要配置hadoop100可以免密码登录hadoop101和hadoop102)
2：这几台节点需要安装jdk1.8及以上，并且在/etc/profile中配置环境变量JAVA_HOME
例如：
export JAVA_HOME=/usr/local/jdk
export PATH=.:$JAVA_HOME/bin:$PATH
1：上传flink安装包到hadoop100节点的/usr/local目录下，然后解压
cd /usr/local
tar -zxvf flink-1.4.1-bin-hadoop27-scala_2.11.tgz2：修改hadoop100节点上的flink的配置文件
cd /usr/local/flink-1.4.1/conf
vi flink-conf.yaml
# 修改此参数的值，改为主节点的主机名
jobmanager.rpc.address: hadoop100
vi slaves
hadoop101
hadoop1023：把修改好配置文件的flink目录拷贝到其他两个节点
scp -rq /usr/local/flink-1.4.1 hadoop101:/usr/local
scp -rq /usr/local/flink-1.4.1 hadoop102:/usr/local4：在hadoop100节点启动集群
cd /usr/local/flink-1.4.1
bin/start-cluster.sh执行上面命令以后正常将会看到以下日志输出：
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Starting cluster.
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Starting jobmanager daemon on host hadoop100.
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Starting taskmanager daemon on host hadoop101.
Starting taskmanager daemon on host hadoop102.5：验证集群启动情况
查看进程：
在hadoop100节点上执行jps，可以看到：
3785 JobManager
在hadoop101节点上执行jps，可以看到：
2534 TaskManager
在hadoop101节点上执行jps，可以看到：
2402 TaskManager
能看到对应的jobmanager和taskmanager进程即可。如果启动失败了，请查看对应的日志：
cd /usr/local/flink-1.4.1/log
针对jobmanager节点：
more flink-root-jobmanager-0-hadoop100.log
针对taskmanager节点：
more flink-root-taskmanager-0-hadoop101.log
more flink-root-taskmanager-0-hadoop102.log
查看此日志文件中是否有异常日志信息6：访问集群web界面
http://hadoop100:80817：停止集群
在hadoop100节点上执行下面命令
cd /usr/local/flink-1.4.1
bin/stop-cluster.sh执行停止命令之后将会看到下面日志输出：
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Stopping taskmanager daemon (pid: 3321) on host hadoop101.
Stopping taskmanager daemon (pid: 3088) on host hadoop102.
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Using the result of 'hadoop classpath' to augment the Hadoop classpath: /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/*:/usr/local/hadoop/share/hadoop/common/*:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/*:/usr/local/hadoop/share/hadoop/hdfs/*:/usr/local/hadoop/share/hadoop/yarn/lib/*:/usr/local/hadoop/share/hadoop/yarn/*:/usr/local/hadoop/share/hadoop/mapreduce/lib/*:/usr/local/hadoop/share/hadoop/mapreduce/*:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
Stopping jobmanager daemon (pid: 5341) on host hadoop100.再去对应的节点上执行jps进程发现对应的jobmanager和taskmanager进程都没有了。
获取更多大数据资料，视频以及技术交流请加群：
QQ群号1：295505811(已满)
QQ群号2：54902210
QQ群号3：555684318
