Zookeeper+ActiveMQ集群搭建

搭建三台虚拟机安装centos7。要提前安装好jdk环境

1.环境准备,搭建三台虚拟机ip分别是

• 192.168.192.130
• 192.168.192.131
• 192.168.192.134

　　Zookeeper环境准备

主机ip	消息端口	通信端口	节点目录/user/local/
192.168.192.130	2181	2888:3888	zookeeper
192.168.192.131	2181	2888:3888	zookeeper
192.168.192.134	2181	2888:3888	zookeeper

 

　　ActiveMQ环境准备：

　　

主机IP	集群通信端口	消息端口	控制台端口	节点目录/user/local/
192.168.192.130	62621	51511	8161	activemq-cluster/node1
192.168.192.131	62622	51512	8162	activemq-cluster/node2
192.168.192.134	62623	51513	8163	activemq-cluster/node3

　

2.搭建zookeeper环境(三个虚拟机操作一样)

• 解压zookeeper-3.4.5.tar.gz 复制到/opt/usr/local下（三台虚拟机都这么做）
• 配置zookeeper的环境变量。vim/etc/profile(配置完成后要记得source /etc/profile 生效修改)

JAVA_HOME=/usr/lib/java/jdk1.7
ZOOKEEPER_HOME=/usr/local/zookeeper-3.4.5
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
PATH=$JAVA_HOME/bin:$ZOOKEEPER_HOME/bin:$PATH
export JAVA_HOME CLASS_PATH ZOOKEEPER_HOME PATH

• 修改zookeeper配置文件名,到zookeeper的conf目录下将zoo_sample.cfg文件改名为zoo.cfg

　　$ mv zoo_sample.cfg zoo.cfg

• 编辑zoo.cfg文件 

　　$ vim zoo.cfg

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
#这个地方的目录地址改一下
dataDir=/usr/local/zookeeper-3.4.5/data
#日志目录
dataLogDir=/usr/local/zookeeper-3.4.5/logs
# the port at which the clients will connect
clientPort=2181
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
#配置三个server
server.0=192.168.192.130:2888:3888
server.1=192.168.192.131:2888:3888
server.2=192.168.192.134:2888:3888

• 在zookeeper-3.4.5目录下创建data文件夹和logs文件夹

　　$ cd /usr/local/zookeeper-3.4.5

　　$mkdir data

　　$mkdir logs

• 在三个虚拟机下的data文件夹下创建三个myid文件，并且三个文件里面分别写入0,1,2

　　$ cd /usr/local/zookeeper-3.4.5/data

#192.168.192.130下
vim myid 在文件里面写入0，保存退出
#192.168.192.131下
vim myid 在文件里面写入1，保存退出
#192.168.192.134下
vim myid 在文件里面写入2，保存退出

• 启动三个zookeeper

　　 $ zkServer.sh start

[root@localhost data]# zkServer.sh start
JMX enabled by default
Using config: /usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@localhost data]# 

• ps:常用命令:

　　启动: zkServer.sh start

　　停止: zkServer.sh stop

　　重启: zkServer.sh restart

　　查看服务状态: zkServer.sh status

• 遇到的问题1:

　　用zkServer.sh start启动报错说zkServer.sh:未找到命令 就用 ./zkServer.sh start 来启动

• 遇到的问题2: 

　　三台虚拟机启动后用zkServer.sh status查看状态发现有错误

[root@localhost conf]# zkServer.sh status
JMX enabled by default
Using config: /usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg
Error contacting service. It is probably not running.

　　然后用$zkServer.sh start-foreground命令来启动查看启动日志 发现日志报错

java.net.NoRouteToHostException: No route to host
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
        at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
2016-11-13 18:00:35,602 [myid:0] - WARN  [QuorumPeer[myid=0]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot open channel to 1 at election address /192.168.192.131:3888

java.net.NoRouteToHostException: No route to host
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
        at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
2016-11-13 18:00:36,035 [myid:0] - INFO  [QuorumPeer[myid=0]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 800
2016-11-13 18:00:36,837 [myid:0] - WARN  [QuorumPeer[myid=0]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot open channel to 2 at election address /192.168.192.134:3888

　　初步断定是防火墙的问题,我们关闭防火墙试试看能不能解决问题

　　#关闭防火墙
　　$ systemctl stop firewalld.service

　　重新启动zookeeper我们发现可以使用了。问题解决

3、搭建ActiveMQ并和Zookeeper建立集群

　　搭建三个ActiveMQ，分在三个服务器上，每一个服务器上一个。192.169.192.130是node1,192.168.192.131是node2,192.168.192.134是node3

　　(1) 解压 tar -zxvf apache-activemq-5.14.1-bin.tar.gz

　　(2) 创建文件夹mkdir /usr/local/activemq-cluster

　　(3) 将第一步解压的文件夹移动到activemq-cluster下

　　(4) 改名文件夹 mv apache-activemq-5.14.1 node1 (其他两台服务器也如此操作并分别改名为node2,node3)

　　(5) 修改conf/activemq.xml文件 vim activemq.xml。修改其中的bind、zkAddress、bhotname、zkPath。

　　(6) node1第一处修改：brokerName="active-cluster"

<broker xmlns="http://activemq.apache.org/schema/core" brokerName="activemq-cluster" dataDirectory="${activemq.data}">
    ......
</broker>

　　(7)node1 第二处修改:

<persistenceAdapter>
    <!-- <kahaDB directory="${activemq.data}/kahadb"/> -->
<replicatedLevelDB
     directory="${activemq.data}/leveldb"
     replicas="3"
     bind="tcp://0.0.0.0:62621"
     zkAddress="192.168.192.130:2181,192.168.192.131:2181,192.168.192.134:2181"
     hostname="192.168.192.130"
     zkPath="/activemq/leveldb-stores"/>
</persistenceAdapter>

　　(8)node1 第三处修改:修改name="openwire"

<transportConnectors>
    <!-- DOS protection, limit concurrent connections to 1000 and frame size to 100MB -->
    <transportConnector name="openwire" uri="tcp://0.0.0.0:51511?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="amqp" uri="amqp://0.0.0.0:5672?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="stomp" uri="stomp://0.0.0.0:61613?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="mqtt" uri="mqtt://0.0.0.0:1883?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="ws" uri="ws://0.0.0.0:61614?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
</transportConnectors>

　　(9) node2 第一处修改

<broker xmlns="http://activemq.apache.org/schema/core" brokerName="activemq-cluster" dataDirectory="${activemq.data}">
    ......
</broker>

　　(10) node2第二处修改

<persistenceAdapter>
   <!-- <kahaDB directory="${activemq.data}/kahadb"/> -->
   <replicatedLevelDB
     directory="${activemq.data}/leveldb"
     replicas="3"
     bind="tcp://0.0.0.0:62622"
     zkAddress="192.168.192.130:2181,192.168.192.131:2181,192.168.192.134:2181"
     hostname="192.168.192.131"
     zkPath="/activemq/leveldb-stores"
   />
</persistenceAdapter>

　　(11) node2第三处修改参考

<transportConnectors>
    <!-- DOS protection, limit concurrent connections to 1000 and frame size to 100MB -->
    <transportConnector name="openwire" uri="tcp://0.0.0.0:51512?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="amqp" uri="amqp://0.0.0.0:5672?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="stomp" uri="stomp://0.0.0.0:61613?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="mqtt" uri="mqtt://0.0.0.0:1883?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="ws" uri="ws://0.0.0.0:61614?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
</transportConnectors>

　　(12) node3第一处修改

<broker xmlns="http://activemq.apache.org/schema/core" brokerName="activemq-cluster" dataDirectory="${activemq.data}">
    ......
</broker>

　　(13) node3第二处修改

<persistenceAdapter>
   <!-- <kahaDB directory="${activemq.data}/kahadb"/> -->
   <replicatedLevelDB
     directory="${activemq.data}/leveldb"
     replicas="3"
     bind="tcp://0.0.0.0:62623"
     zkAddress="192.168.192.130:2181,192.168.192.131:2181,192.168.192.134:2181"
     hostname="192.168.192.134"
     zkPath="/activemq/leveldb-stores"
   />
</persistenceAdapter>

　　(14) node3第三处修改

<transportConnectors>
    <!-- DOS protection, limit concurrent connections to 1000 and frame size to 100MB -->
    <transportConnector name="openwire" uri="tcp://0.0.0.0:51513?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="amqp" uri="amqp://0.0.0.0:5672?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="stomp" uri="stomp://0.0.0.0:61613?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="mqtt" uri="mqtt://0.0.0.0:1883?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
    <transportConnector name="ws" uri="ws://0.0.0.0:61614?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
</transportConnectors>

4、集群搭建完毕，测试一下

• 先启动zookeeper $ zkServer.sh start(有三个zookeeper,貌似第二个启动的是leader,用$zkServer.sh status查看)
• 再启动activemq $ ./activemq start
• 查看日志看是否出错 $ tailf node1/data/activemq.log(最先启动的是master,其他的都是slaver)
• 在浏览器中输入http://192.168.192.130/admin来查看

5、用代码来测试一下

package com.lee;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

public class Sender {
    
    public static void main(String[] args) {
        try {
            //第一步：建立ConnectionFactory工厂对象，需要填入用户名、密码、以及要连接的地址，均使用默认即可，默认端口为"tcp://localhost:61616"
            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
                    ActiveMQConnectionFactory.DEFAULT_USER, 
                    ActiveMQConnectionFactory.DEFAULT_PASSWORD, 
                    "failover:(tcp://192.168.192.130:51511,tcp://192.168.192.131:51512,tcp://192.168.192.134:51513)?Randomize=false");
            
            //第二步：通过ConnectionFactory工厂对象我们创建一个Connection连接，并且调用Connection的start方法开启连接，Connection默认是关闭的。
            Connection connection = connectionFactory.createConnection();
            connection.start();
            
            //第三步：通过Connection对象创建Session会话（上下文环境对象），用于接收消息，参数配置1为是否启用是事务，参数配置2为签收模式，一般我们设置自动签收。
            Session session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);
            
            //第四步：通过Session创建Destination对象，指的是一个客户端用来指定生产消息目标和消费消息来源的对象，在PTP模式中，Destination被称作Queue即队列；在Pub/Sub模式，Destination被称作Topic即主题。在程序中可以使用多个Queue和Topic。
            Destination destination = session.createQueue("first");
            
            //第五步：我们需要通过Session对象创建消息的发送和接收对象（生产者和消费者）MessageProducer/MessageConsumer。
            MessageProducer producer = session.createProducer(null);
            
            //第六步：我们可以使用MessageProducer的setDeliveryMode方法为其设置持久化特性和非持久化特性（DeliveryMode），我们稍后详细介绍。
            //producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
            
            //第七步：最后我们使用JMS规范的TextMessage形式创建数据（通过Session对象），并用MessageProducer的send方法发送数据。同理客户端使用receive方法进行接收数据。最后不要忘记关闭Connection连接。
            
            for(int i = 0 ; i < 500000 ; i ++){
                TextMessage msg = session.createTextMessage("我是消息内容" + i);
                System.out.println("我是消息内容" + i);
                // 第一个参数目标地址
                // 第二个参数 具体的数据信息
                // 第三个参数 传送数据的模式
                // 第四个参数 优先级
                // 第五个参数 消息的过期时间
                producer.send(destination, msg, DeliveryMode.NON_PERSISTENT, 0 , 1000L);
                System.out.println("发送消息：" + msg.getText());
                Thread.sleep(1000);
                
            }

            if(connection != null){
                connection.close();
            }            
        } catch (Exception e) {
            e.printStackTrace();
        }
        
    }
}

package com.lee;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

public class Receiver {

    public static void main(String[] args)  {
        try {
            //第一步：建立ConnectionFactory工厂对象，需要填入用户名、密码、以及要连接的地址，均使用默认即可，默认端口为"tcp://localhost:61616"
            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
                    ActiveMQConnectionFactory.DEFAULT_USER, 
                    ActiveMQConnectionFactory.DEFAULT_PASSWORD, 
                    "failover:(tcp://192.168.192.130:51511,tcp://192.168.192.131:51512,tcp://192.168.192.·34:51513)?Randomize=false");
            
            //第二步：通过ConnectionFactory工厂对象我们创建一个Connection连接，并且调用Connection的start方法开启连接，Connection默认是关闭的。
            Connection connection = connectionFactory.createConnection();
            connection.start();
            
            //第三步：通过Connection对象创建Session会话（上下文环境对象），用于接收消息，参数配置1为是否启用是事务，参数配置2为签收模式，一般我们设置自动签收。
            Session session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);
            
            //第四步：通过Session创建Destination对象，指的是一个客户端用来指定生产消息目标和消费消息来源的对象，在PTP模式中，Destination被称作Queue即队列；在Pub/Sub模式，Destination被称作Topic即主题。在程序中可以使用多个Queue和Topic。
            Destination destination = session.createQueue("first");
            //第五步：通过Session创建MessageConsumer
            MessageConsumer consumer = session.createConsumer(destination);
            
            while(true){
                TextMessage msg = (TextMessage)consumer.receive();
                if(msg == null) break;
                System.out.println("收到的内容：" + msg.getText());
            }            
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}