1下载flink
2启动flink
./start-cluster.sh
[jackray@localhost ~]$ cd flink-1.9.2/
[jackray@localhost flink-1.9.2]$ ls
bin conf examples lib LICENSE licenses log NOTICE opt plugins README.txt
[jackray@localhost flink-1.9.2]$ cd bin
[jackray@localhost bin]$ ls
config.sh historyserver.sh pyflink-shell.sh start-zookeeper-quorum.sh
find-flink-home.sh jobmanager.sh sql-client.sh stop-cluster.sh
flink mesos-appmaster-job.sh standalone-job.sh stop-zookeeper-quorum.sh
flink.bat mesos-appmaster.sh start-cluster.bat taskmanager.sh
flink-console.sh mesos-taskmanager.sh start-cluster.sh yarn-session.sh
flink-daemon.sh pyflink-gateway-server.sh start-scala-shell.sh zookeeper.sh
[jackray@localhost bin]$ ./start-cluster.sh
Starting cluster.
Starting standalonesession daemon on host localhost.localdomain.
Starting taskexecutor daemon on host localhost.localdomain.
验证是否flink已经启动
[jackray@localhost bin]$ jps
3091 Jps
2601 StandaloneSessionClusterEntrypoint
3035 TaskManagerRunner
访问flink web
http://192.168.0.130:8081
flink已经启动。
3测试demo
打开一个界面输入如下指令
[jackray@localhost bin]$ nc -l 9000
启动example
[jackray@localhost flink-1.9.2]$ ./bin/flink run examples/streaming/SocketWindowWordCount.jar --port 9000
Starting execution of program
Program execution finished
Job with JobID 5a2f66ccd20e5b398f13b33791a4b7a3 has finished.
Job Runtime: 1022467 ms
测试
输入字符，回车即为输入成功
[jackray@localhost bin]$ nc -l 9000
hello\^H
hello
flink
日志中查看打印输出
hello : 1
hello : 1
flink : 1
具体操作日志如下
[jackray@localhost flink-1.9.2]$ cd log/
[jackray@localhost log]$ ls
flink-jackray-client-localhost.localdomain.log flink-jackray-standalonesession-0-localhost.localdomain.out flink-jackray-taskexecutor-0-localhost.localdomain.out
flink-jackray-standalonesession-0-localhost.localdomain.log flink-jackray-taskexecutor-0-localhost.localdomain.log
[jackray@localhost log]$ tail -f flink-jackray-taskexecutor-0-localhost.localdomain.log
2020-02-08 22:33:59,468 INFO org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream leak safety net for task Window(TumblingProcessingTimeWindows(5000), ProcessingTimeTrigger, ReduceFunction$1, PassThroughWindowFunction) -> Sink: Print to Std. Out (1/1) (c2aaba677f2affe819cef4d4c9366db2) [DEPLOYING]
2020-02-08 22:33:59,487 INFO org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task Window(TumblingProcessingTimeWindows(5000), ProcessingTimeTrigger, ReduceFunction$1, PassThroughWindowFunction) -> Sink: Print to Std. Out (1/1) (c2aaba677f2affe819cef4d4c9366db2) [DEPLOYING].
2020-02-08 22:33:59,488 INFO org.apache.flink.runtime.taskmanager.Task - Registering task at network: Window(TumblingProcessingTimeWindows(5000), ProcessingTimeTrigger, ReduceFunction$1, PassThroughWindowFunction) -> Sink: Print to Std. Out (1/1) (c2aaba677f2affe819cef4d4c9366db2) [DEPLOYING].
2020-02-08 22:33:59,598 INFO org.apache.flink.runtime.taskmanager.Task - Window(TumblingProcessingTimeWindows(5000), ProcessingTimeTrigger, ReduceFunction$1, PassThroughWindowFunction) -> Sink: Print to Std. Out (1/1) (c2aaba677f2affe819cef4d4c9366db2) switched from DEPLOYING to RUNNING.
2020-02-08 22:33:59,616 INFO org.apache.flink.runtime.taskmanager.Task - Source: Socket Stream -> Flat Map (1/1) (b518c8f29e6631d6753c22a8e93a9d9f) switched from DEPLOYING to RUNNING.
2020-02-08 22:33:59,619 INFO org.apache.flink.streaming.runtime.tasks.StreamTask - No state backend has been configured, using default (Memory / JobManager) MemoryStateBackend (data in heap memory / checkpoints to JobManager) (checkpoints: 'null', savepoints: 'null', asynchronous: TRUE, maxStateSize: 5242880)
2020-02-08 22:33:59,626 INFO org.apache.flink.streaming.runtime.tasks.StreamTask - No state backend has been configured, using default (Memory / JobManager) MemoryStateBackend (data in heap memory / checkpoints to JobManager) (checkpoints: 'null', savepoints: 'null', asynchronous: TRUE, maxStateSize: 5242880)
2020-02-08 22:33:59,759 WARN org.apache.flink.metrics.MetricGroup - The operator name Window(TumblingProcessingTimeWindows(5000), ProcessingTimeTrigger, ReduceFunction$1, PassThroughWindowFunction) exceeded the 80 characters length limit and was truncated.
2020-02-08 22:33:59,770 INFO org.apache.flink.streaming.api.functions.source.SocketTextStreamFunction - Connecting to server socket localhost:9000
2020-02-08 22:33:59,786 INFO org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - Initializing heap keyed state backend with stream factory.
^Z
[1]+ Stopped tail -f flink-jackray-taskexecutor-0-localhost.localdomain.log
[jackray@localhost log]$ tail -f flink-jackray-taskexecutor-0-localhost.localdomain.out
hello : 1
hello : 1
flink : 1
