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目录
先看下是否有java,不过没有也没事,用的是open-jdk,命令如下:
#1、查看java版本java -version#2、安装flinkbrew install apache-flink#3、查看flink版本flink --version
cd /usr/local/Cellar/apache-flink/1.12.1/libexec/binsh start-cluster.sh
然后打开ui页面:
cd /usr/local/Cellar/apache-flink/1.12.1/libexec/examples/streamingflink run WordCount.jarcd ../../logtail flink-*-taskexecutor*#结果(nymph,1)(in,3)(thy,1)(orisons,1)(be,4)(all,2)(my,1)(sins,1)(remember,1)(d,4)
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.flink.streaming.examples.wordcount;import org.apache.flink.api.common.functions.FlatMapFunction;import org.apache.flink.api.java.tuple.Tuple2;import org.apache.flink.api.java.utils.MultipleParameterTool;import org.apache.flink.streaming.api.datastream.DataStream;import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;import org.apache.flink.streaming.examples.wordcount.util.WordCountData;import org.apache.flink.util.Collector;import org.apache.flink.util.Preconditions;/** * Implements the "WordCount" program that computes a simple word occurrence histogram over text * files in a streaming fashion. * *The input is a plain text file with lines separated by newline characters. * *
Usage:
* If no parameters are provided, the program is run with default data from {@link WordCountData}. * *WordCount --input <path> --output <path>
This example shows how to: * *
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.flink.streaming.examples.wordcount.util;/** * Provides the default data sets used for the WordCount example program. The default data sets are * used, if no parameters are given to the program. */public class WordCountData { public static final String[] WORDS = new String[] { "To be, or not to be,--that is the question:--", "Whether 'tis nobler in the mind to suffer", "The slings and arrows of outrageous fortune", "Or to take arms against a sea of troubles,", "And by opposing end them?--To die,--to sleep,--", "No more; and by a sleep to say we end", "The heartache, and the thousand natural shocks", "That flesh is heir to,--'tis a consummation", "Devoutly to be wish'd. To die,--to sleep;--", "To sleep! perchance to dream:--ay, there's the rub;", "For in that sleep of death what dreams may come,", "When we have shuffled off this mortal coil,", "Must give us pause: there's the respect", "That makes calamity of so long life;", "For who would bear the whips and scorns of time,", "The oppressor's wrong, the proud man's contumely,", "The pangs of despis'd love, the law's delay,", "The insolence of office, and the spurns", "That patient merit of the unworthy takes,", "When he himself might his quietus make", "With a bare bodkin? who would these fardels bear,", "To grunt and sweat under a weary life,", "But that the dread of something after death,--", "The undiscover'd country, from whose bourn", "No traveller returns,--puzzles the will,", "And makes us rather bear those ills we have", "Than fly to others that we know not of?", "Thus conscience does make cowards of us all;", "And thus the native hue of resolution", "Is sicklied o'er with the pale cast of thought;", "And enterprises of great pith and moment,", "With this regard, their currents turn awry,", "And lose the name of action.--Soft you now!", "The fair Ophelia!--Nymph, in thy orisons", "Be all my sins remember'd." };}
4.0.0 org.example flink-demo 1.0-SNAPSHOT 8 8 org.apache.flink flink-streaming-java_2.12 1.12.1 provided maven-clean-plugin auto-clean initialize clean maven-compiler-plugin org.apache.maven.plugins maven-shade-plugin true *:* META-INF/*.SF META-INF/*.DSA META-INF/*.RSA package shade com.flinkdemo.wordcount.WordCount
flink run flink-demo-1.0-SNAPSHOT.jar
3、停止任务
(1)在ui右上角停止
(2)通过命令停止
flink listflink cancel 任务id
参考:
转载地址:http://jdrsi.baihongyu.com/