Vertx集群部署实例

2019年12月06日 阅读数:32
这篇文章主要向大家介绍Vertx集群部署实例,主要内容包括基础应用、实用技巧、原理机制等方面,希望对大家有所帮助。

       Vertx集群部署,官方介绍了几种方式,其中有一种方式是使用HazelCast来实现的,下面介绍如何经过HazelCasthtml

来实现Vertx集群部署。前端

       HazelCast默认采用UDP广播的方式实现节点之间的互通,从而实现内部信息共享达到集群目的,前提是节点都在java

同一个网段,并且节点若是有多个网卡,节点启动时,还得指定相应的网卡(cluster-host)做为集群之间通讯的IP,web

网络要求较高。也能够采用TCPIP的方式,经过配置cluster.xml,将节点IP加入tcp-ip节点的interface节点,节点启动mongodb

以后会经过指定IP使节点之间经过socket链接构建集群,经过这种方式构建集群,就须要改动hazelcast集群数据库

配置文件cluster.xml。apache

项目介绍:json

       该工程实现这样的功能:经过vertx构建一个HttpServer,而且监听8082端口,接收前端的业务需求,最后经过判断,api

若是请求(http://hostname:8082/pushservice/2.0/poll)中带有参数type,就利用vertx的EventBus事件机制向注册网络

pushservice-poll的Verticle发送一个消息,而注册pushservice-poll的Verticle接收到消息以后,会向mongo数据库

中插入一条记录,这样整个的请求就算完成。这里面利用了vertx-web的路由功能,接收指定path(/pushservice

/2.0/poll)请求,还利用了vertx-core的EventBus,实现Verticle之间互相通讯。

      工程目录结构:


第一步、构建maven项目,配置vertx-web和hazelcast相关依赖;

    <properties>
            <mainClass>com.lenovo.push.start.ClusterStarter</mainClass>
    </properties>
    
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>io.vertx</groupId>
			<artifactId>vertx-unit</artifactId>
			<version>3.3.3</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>io.vertx</groupId>
			<artifactId>vertx-web</artifactId>
			<version>3.3.3</version>
		</dependency>
		<dependency>
			<groupId>io.vertx</groupId>
			<artifactId>vertx-mongo-client</artifactId>
			<version>3.3.3</version>
		</dependency>
		<dependency>
		     <groupId>io.vertx</groupId>
		     <artifactId>vertx-mongo-embedded-db</artifactId>
		     <version>3.3.3</version>
		</dependency>
		<dependency>
		    <groupId>io.vertx</groupId>
		    <artifactId>vertx-hazelcast</artifactId>
		    <version>3.3.3</version>
		</dependency>
		<dependency>
			<groupId>io.netty</groupId>
			<artifactId>netty-all</artifactId>
			<version>4.1.7.Final</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.8.6</version>
		</dependency>
		<dependency>
		    <groupId>org.apache.logging.log4j</groupId>
		    <artifactId>log4j-api</artifactId>
		    <version>2.7</version>
		</dependency>
		<dependency>
		    <groupId>org.apache.logging.log4j</groupId>
		    <artifactId>log4j-core</artifactId>
		    <version>2.7</version>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
					<artifactId>maven-compiler-plugin</artifactId>
					<version>3.3</version>
					<configuration>
						<source>1.8</source>
						<target>1.8</target>
					</configuration>
			</plugin>
			<plugin>
					<groupId>org.apache.maven.plugins</groupId>
					<artifactId>maven-jar-plugin</artifactId>
					<version>2.5</version>
					<configuration>
							<excludes>
									<exclude>/*.properties</exclude>
									<exclude>/*.xml</exclude>
							</excludes>
							<archive>
									<manifest>
											<addClasspath>false</addClasspath>
											<mainClass>${mainClass}</mainClass>
									</manifest>
							</archive>
					</configuration>
			</plugin>
			<plugin>
                    <groupId>com.google.code.maven-replacer-plugin</groupId>
                    <artifactId>replacer</artifactId>
                    <version>1.5.3</version>
                    <executions>
                                <execution>
                                        <phase>prepare-package</phase>
                                        <goals>
                                               <goal>replace</goal>
                                        </goals>
                                </execution>
                    </executions>
                    <configuration>
                                  <file>assemblise/bin/app.sh</file>
                                  <replacements>
                                               <replacement>
                                                       <token>#MAIN_CLASS#</token>
                                                       <value>${mainClass}</value>
                                               </replacement>
                                  </replacements>
                                  <outputFile>target/bin/app.sh</outputFile>
                    </configuration>
            </plugin>
            <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-assembly-plugin</artifactId>
                    <version>2.4</version>
                    <configuration>
                           <descriptors>
                                  <descriptor>assembly.xml</descriptor>
                           </descriptors>
                    </configuration>
                    <executions>
                           <execution>
                                   <id>make-assembly</id>
                                   <phase>package</phase>
                                   <goals>
                                          <goal>single</goal>
                                   </goals>
                           </execution>
                    </executions>
            </plugin>
		</plugins>
	</build>

这里面还配置了一个利用Assembly插件打包的工具,日志采用log4j2,引入了vertx-mongo,后面会用来向mongo

数据库中插入数据。

第二步、书写业务代码,实现项目的功能;

配置文件vertx.properties(数据库链接属性和集群配置本例子没有使用集群配置,只是简单的设置了cluster为true)

#VertxOptions
vertx.active=VXWEB
vertx.VXWEB.pool.size.event.loop=64
vertx.VXWEB.pool.size.worker=256
vertx.VXWEB.pool.size.internal.blocking=256

vertx.VXWEB.cluster.enabled=true
vertx.VXWEB.cluster.host=localhost
vertx.VXWEB.cluster.port=3000

vertx.VXWEB.cluster.ping.interval=1000
vertx.VXWEB.cluster.ping.interval.reply=1000

vertx.VXWEB.blocked.thread.check.interval=1000
vertx.VXWEB.execute.time.max.event.loop=60000000000
vertx.VXWEB.execute.time.max.worker=60000000000

vertx.VXWEB.ha.enabled=true
vertx.VXWEB.ha.group=__DEFAULT__
vertx.VXWEB.quorum.size=1
vertx.VXWEB.warning.exception.time=5000000000
#DeploymentOptions
http.port=8082
db_name=pushservice
connection_string=mongodb://192.168.56.201:27017

ResourceLoader.java(读取配置文件工具类)

package com.lenovo.push.loader;
import java.io.File;
import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

public class ResourceLoader {
	private static ResourceLoader loader = new ResourceLoader();
	private static Map<String, Properties> loadermap = new HashMap<String,Properties>();
	private static String DEFAULT_CONFIG_FILE="vertx.properties";
	private ResourceLoader(){}
	
	public static ResourceLoader getInstance(){
		return loader;
	}
	
	public Properties getPropFromProperties(String fileName) throws Exception{
		Properties prop = loadermap.get(fileName);
		if(prop!=null)return prop;
		String path = getClass().getClassLoader().getResource(fileName).getPath();
		prop = new Properties();
		prop.load(new FileInputStream(new File(path)));
		loadermap.put(fileName, prop);
		return prop;
	}
	
	
	public  String getString(String key) throws Exception{
		Properties prop = ResourceLoader.getInstance().getPropFromProperties(DEFAULT_CONFIG_FILE);
		String value = prop.getProperty(key);
		return value;
	}
	
	public  Integer getInt(String key) throws Exception{
		return Integer.parseInt(getString(key));
	}
	
	public  Long getLong(String key) throws NumberFormatException, Exception{
		return Long.parseLong(getString(key));
	}
	
	public  Boolean getBoolean(String key) throws Exception{
		return Boolean.parseBoolean(getString(key));
	}
	
	public static void main(String[] args) throws Exception{
		System.out.println(loader.getString("vertx.VXWEB.cluster.enabled"));
	}
}

OptionsReader.java(获取集群和部署配置类属性)

package com.lenovo.push.deploy;
import io.vertx.core.DeploymentOptions;
import io.vertx.core.VertxOptions;
import io.vertx.core.json.JsonObject;

import com.lenovo.push.loader.ResourceLoader;
public class OptionsReader {
	private static final String VX_PREFIX = "vertx.";

	private static  ResourceLoader LOADER = ResourceLoader.getInstance();

	public static VertxOptions readOpts(final String name) throws Exception{
		final VertxOptions options = new VertxOptions();
		options.setEventLoopPoolSize(LOADER.getInt(VX_PREFIX+name+".pool.size.event.loop"));
		options.setWorkerPoolSize(LOADER.getInt(VX_PREFIX+name+".pool.size.worker"));
		options.setInternalBlockingPoolSize(LOADER.getInt(VX_PREFIX+name+".pool.size.internal.blocking"));
		
		options.setClustered(LOADER.getBoolean(VX_PREFIX+name+".cluster.enabled"));
		options.setClusterHost(LOADER.getString(VX_PREFIX+name+".cluster.host"));
		options.setClusterPort(LOADER.getInt(VX_PREFIX+name+".cluster.port"));
		
		options.setClusterPingInterval(LOADER.getLong(VX_PREFIX+name+".cluster.ping.interval"));
		options.setClusterPingReplyInterval(LOADER.getLong(VX_PREFIX+name+".cluster.ping.interval.reply"));
		
		options.setBlockedThreadCheckInterval(LOADER.getLong(VX_PREFIX+name+".blocked.thread.check.interval"));
		options.setMaxEventLoopExecuteTime(LOADER.getLong(VX_PREFIX+name+".execute.time.max.event.loop"));
		options.setMaxWorkerExecuteTime(LOADER.getLong(VX_PREFIX+name+".execute.time.max.worker"));
		
		options.setHAEnabled(LOADER.getBoolean(VX_PREFIX+name+".ha.enabled"));
		options.setHAGroup(LOADER.getString(VX_PREFIX+name+".ha.group"));
		options.setQuorumSize(LOADER.getInt(VX_PREFIX+name+".quorum.size"));
		options.setWarningExceptionTime(LOADER.getLong(VX_PREFIX+name+".warning.exception.time"));
		
		return options;
	}
	
	public static DeploymentOptions readOpts() throws Exception{
		final DeploymentOptions options = new DeploymentOptions();
		options.setConfig(new JsonObject()
		       .put("http.port", LOADER.getInt("http.port"))
			   .put("db_name", LOADER.getString("db_name"))
			   .put("connection_string", LOADER.getString("connection_string"))); 
		return options;
	}
}

RootVerticle.java(设置监听,请求路由,接收请求而后发送消息到PollVerticle)

package com.lenovo.push.verticle;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.Future;
import io.vertx.core.eventbus.EventBus;
import io.vertx.core.http.HttpServer;
import io.vertx.core.http.HttpServerResponse;
import io.vertx.core.json.JsonObject;
import io.vertx.ext.web.Router;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class RootVerticle extends AbstractVerticle {
	public static final Logger log = LogManager.getLogger(RootVerticle.class);
	public void start(Future<Void> future){		
			
		final HttpServer server = vertx.createHttpServer();
		
		Router router = Router.router(vertx);
		
		router.route("/").handler(routingContext -> {
			HttpServerResponse response = routingContext.response();
			response.putHeader("content-type", "text/html");
			response.end("<h2>Hello from vertx cluster.</h2>");
		});
		
		//接收上报消息
		router.routeWithRegex("/pushservice/*.*/poll*").handler(routingContext -> {
			HttpServerResponse response = routingContext.response();
			boolean hastype = routingContext.request().params().contains("type");
			if(hastype){
				//使用eventbus发送消息
				EventBus eb = vertx.eventBus();
				eb.publish("pushservice-poll", "datareport");
			}else{
				//
			}
						
			response.putHeader("content-type", "application/json");
			
			response.end(new JsonObject().put("code", 200).put("status", "ok").toString());
		});
		router.routeWithRegex("/pushservice/*.*/appfeedback*").handler(routingContext -> {
			HttpServerResponse response = routingContext.response();
			String lpsst = routingContext.request().getParam("lpsst");
			System.out.println("lpsst get: " + lpsst);
			String body = routingContext.getBodyAsString();
			System.out.println(body);
			response.putHeader("content-type", "text/html");
			response.end("<h2>feedback ok!</h2>");
			
		});
		router.routeWithRegex("/pushservice/*.*/appinfo*").handler(routingContext -> {
			HttpServerResponse response = routingContext.response();
			response.putHeader("content-type", "text/html");
			response.end("<h2>appinfo ok!</h2>");
			
		});
		
		
		server.requestHandler(router::accept);
		
		server.listen(config().getInteger("http.port", 8080),result -> {
			if(result.succeeded()){
				future.complete();
			}else{
				future.fail(result.cause());
			}
		});
		log.info("httpserver listenning on port : "+config().getInteger("http.port",8080));
	}
}

PollVerticle.java(接收消息而后向mongo中写入一条记录)

package com.lenovo.push.verticle;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.eventbus.EventBus;
import io.vertx.core.json.JsonObject;
import io.vertx.ext.mongo.MongoClient;

public class PollVerticle extends AbstractVerticle {

	public static final Logger log = LogManager.getLogger(PollVerticle.class);
	public static int count = 1;
	
	@Override
	public void start() throws Exception {
		//final MongoClient mongo = MongoClient.createShared(vertx, new JsonObject().put("db_name", "lenovodb").put("connection_string", "mongodb://192.168.56.201:27017"));
		final MongoClient mongo = MongoClient.createShared(vertx, config());
		
		EventBus eb = vertx.eventBus();
		eb.consumer("pushservice-poll",message ->{
			String msg = (String)message.body();
			log.info("received message: "+msg);
			JsonObject user = new JsonObject().put("id", count)
					.put("name", "vertx"+(count++))
					.put("age", "333")
					.put("mobile", "no");
			//插入用户信息
			mongo.insert("users", user,lookup->{
				if(lookup.failed()){
					log.error("insert user error: "+lookup.cause());
					return;
				}
			});
		});
	}
	
}

ClusterStarter.java(部署Verticle,启动集群类

package com.lenovo.push.start;

import io.vertx.core.DeploymentOptions;
import io.vertx.core.Vertx;
import io.vertx.core.VertxOptions;

import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.lenovo.push.deploy.OptionsReader;

public class ClusterStarter {

	private static final Logger log = LogManager
			.getLogger(ClusterStarter.class);

	public static void main(String[] args) throws Exception {
		/*
		 * final VertxOptions options = OptionsReader.readOpts("VXWEB"); final
		 * VertxFactory factory = new VertxFactoryImpl(); final ClusterManager
		 * manager = new HazelcastClusterManager(new Config());
		 * options.setClusterManager(manager); factory.clusteredVertx(options,
		 * res -> { if(res.succeeded()){ final Vertx vertx = res.result(); final
		 * DeploymentOptions opts = OptionsReader.readOpts();
		 * vertx.deployVerticle("com.lenovo.verticle.RouterVerticle", opts);
		 * vertx.deployVerticle("com.lenovo.verticle.PollVerticle", opts);
		 * log.info("Deploye RouterVerticle with cluster ok!"); } });
		 */
		final VertxOptions options = new VertxOptions();
		options.setClustered(true);
		final DeploymentOptions opts = OptionsReader.readOpts();
		Consumer<Vertx> runner = vertx -> {
			vertx.deployVerticle("com.lenovo.push.verticle.RootVerticle",opts);
			vertx.deployVerticle("com.lenovo.push.verticle.PollVerticle",opts);
		};
		if (options.isClustered()) {
			Vertx.clusteredVertx(
					options,
					result -> {
						if (result.succeeded()) {
							Vertx vertx = result.result();
							runner.accept(vertx);
							log.info("pushservice is running with cluster by hazelcast.");
						} else {
							log.error("cluster running with error: "
									+ result.cause().getMessage());
						}
					});            
		} else {
			Vertx vertx = Vertx.vertx(options);
			runner.accept(vertx);
		}
	}

}

第三步、打包部署并检验集群。

本实例经过Assembly插件打包。打包以后生成以下的文件。

我本身的两台虚拟机都只有一个网卡,并且都在同一网段,因此能够使用默认的广播方式构建集群,所以也不须要

配置文件cluster.xml。

启动以后查看日志,机器IP分别是:192.168.56.201和192.168.56.202

192.168.56.201上的启动日志,注意标识红色框的位置区别:

192.168.56.202上的启动日志:

集群确实构建成功,如今能够测试工程的功能,发送一个请求http://192.168.56.201:8082/pushservice/2.0/poll?

type=2,查看返回结果。