storm集群配置以及java编写拓扑例子
storm集群配置
storm配置相当简单
安装
tar -zxvf apache-storm-1.2.2.tar.gz
rm apache-storm-1.2.2.tar.gz
mv apache-storm-1.2.2 storm
sudo vim /etc/profile
export STORM_HOME=/usr/local/storm
export PATH=$PATH:$STORM_HOME/bin
source /etc/profile
apt install python
准备 master worker1 worker2 worker3 这四台机器
首先确保你的zookeeper集群能够正常运行worker1 worker2 worker3为zk集群
具体配置参照我的博客https://www.cnblogs.com/ye-hcj/p/9889585.html
修改配置文件
storm.yaml
sudo vim storm.yaml
在四台机器中都加入如下配置
storm.zookeeper.servers:
- "worker1"
- "worker2"
- "worker3" storm.local.dir: "/usr/local/tmpdata/storm" supervisor.slots.ports:
- 6700
- 6701
- 6702
- 6703 nimbus.seeds: ["master"] storm.zookeeper.port: 2181 // 不加下面这几个你的拓扑直接跑不起来
nimbus.childopts: "-Xmx1024m" supervisor.childopts: "-Xmx1024m" worker.childopts: "-Xmx768m"
启动
在master中运行
storm nimbus >> /dev/null &
storm ui >/dev/null 2>&1 &
在worker1,worker2,worker3中运行
storm supervisor >/dev/null 2>&1 &
storm logviewer >/dev/null 2>&1 & 直接访问http://master:8080即可
使用java编写拓扑
四个文件如图
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<version>1.0.0</version>
<name>test</name>
<description>Test project for spring boot mybatis</description>
<packaging>jar</packaging> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
<java.version>1.8</java.version>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>org.apache.storm</groupId>
<artifactId>storm-core</artifactId>
<version>1.2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
</dependency>
</dependencies> <build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
App.java
package test;
import org.apache.storm.Config;
import org.apache.storm.LocalCluster;
import org.apache.storm.StormSubmitter;
import org.apache.storm.topology.TopologyBuilder;
import org.apache.storm.utils.Utils; public class App
{
public static void main( String[] args ) throws Exception { TopologyBuilder topologyBuilder = new TopologyBuilder();
topologyBuilder.setSpout("word",new WordSpout(),1);
topologyBuilder.setBolt("receive",new RecieveBolt(),1).shuffleGrouping("word");
topologyBuilder.setBolt("print",new ConsumeBolt(),1).shuffleGrouping("receive"); // 集群运行
Config config = new Config();
config.setNumWorkers(3);
config.setDebug(true);
StormSubmitter.submitTopology("teststorm", config, topologyBuilder.createTopology()); // 本地测试
// Config config = new Config();
// config.setNumWorkers(3);
// config.setDebug(true);
// config.setMaxTaskParallelism(20);
// LocalCluster cluster = new LocalCluster();
// cluster.submitTopology("wordCountTopology", config, topologyBuilder.createTopology());
// Utils.sleep(60000);
// 执行完毕,关闭cluster
// cluster.shutdown();
}
}
WordSpout.java
package test; import java.util.Map;
import java.util.Random; import org.apache.storm.spout.SpoutOutputCollector;
import org.apache.storm.task.TopologyContext;
import org.apache.storm.topology.OutputFieldsDeclarer;
import org.apache.storm.topology.base.BaseRichSpout;
import org.apache.storm.tuple.Fields;
import org.apache.storm.tuple.Values;
import org.apache.storm.utils.Utils; public class WordSpout extends BaseRichSpout { private static final long serialVersionUID = 6102239192526611945L; private SpoutOutputCollector collector; Random random = new Random(); // 初始化tuple的collector
public void open(Map conf, TopologyContext topologyContext, SpoutOutputCollector collector) {
this.collector = collector;
} public void nextTuple() {
// 模拟产生消息队列
String[] words = {"iphone","xiaomi","mate","sony","sumsung","moto","meizu"}; final String word = words[random.nextInt(words.length)]; // 提交一个tuple给默认的输出流
this.collector.emit(new Values(word)); Utils.sleep(5000);
} // 声明发送消息的字段名
public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) {
outputFieldsDeclarer.declare(new Fields("word"));
}
}
RecieveBolt.java
package test; import java.util.Map; import org.apache.storm.task.OutputCollector;
import org.apache.storm.task.TopologyContext;
import org.apache.storm.topology.OutputFieldsDeclarer;
import org.apache.storm.topology.base.BaseRichBolt;
import org.apache.storm.tuple.Fields;
import org.apache.storm.tuple.Tuple;
import org.apache.storm.tuple.Values; public class RecieveBolt extends BaseRichBolt { private static final long serialVersionUID = -4758047349803579486L; private OutputCollector collector; public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
this.collector = collector;
} public void execute(Tuple tuple) {
// 将spout传递过来的tuple值进行转换
this.collector.emit(new Values(tuple.getStringByField("word") + "!!!"));
} // 声明发送消息的字段名
public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) {
outputFieldsDeclarer.declare(new Fields("word"));
}
}
ConsumeBolt.java
package test; import java.io.FileWriter;
import java.io.IOException;
import java.util.Map;
import java.util.UUID; import org.apache.storm.task.OutputCollector;
import org.apache.storm.task.TopologyContext;
import org.apache.storm.topology.OutputFieldsDeclarer;
import org.apache.storm.topology.base.BaseRichBolt;
import org.apache.storm.tuple.Tuple; public class ConsumeBolt extends BaseRichBolt { private static final long serialVersionUID = -7114915627898482737L; private FileWriter fileWriter = null; private OutputCollector collector; public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) { this.collector = collector; try {
fileWriter = new FileWriter("/usr/local/tmpdata/" + UUID.randomUUID());
// fileWriter = new FileWriter("C:\\Users\\26401\\Desktop\\test\\" + UUID.randomUUID());
} catch (IOException e) {
throw new RuntimeException(e);
}
} public void execute(Tuple tuple) { try {
String word = tuple.getStringByField("word") + "......." + "\n";
fileWriter.write(word);
fileWriter.flush();
System.out.println(word);
} catch (IOException e) {
throw new RuntimeException(e);
}
} public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) { }
}
在集群中运行
storm jar test-1.0.0-jar-with-dependencies.jar test.App // 启动集群
storm kill teststorm // 结束集群
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