RocketMQ 编译安装 Helloworld

RocketMQ 01

主要内容：

  • 编译安装
  • HelloWorld

官方网站
http://rocketmq.apache.org
GitHub
https://github.com/apache/rocketmq

Quick Start

Linux下使用Maven编译源码安装

Rocketmq4.6+需要jdk1.8环境编译和运行
RocketMQ   编译安装 Helloworld - 图1
各版本要求

Version Client Broker NameServer
4.0.0-incubating >=1.7 >=1.8 >=1.8
4.1.0-incubating >=1.6 >=1.8 >=1.8
4.2.0 >=1.6 >=1.8 >=1.8
4.3.x >=1.6 >=1.8 >=1.8
4.4.x >=1.6 >=1.8 >=1.8
4.5.x >=1.6 >=1.8 >=1.8
4.6.x >=1.6 >=1.8 >=1.8

1.从GitHub上下载源码并上传到服务器

RocketMQ   编译安装 Helloworld - 图2

2.在Linux上安装Maven

下载Maven

  1. wget https://mirrors.tuna.tsinghua.edu.cn/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz

添加阿里云镜像
修改maven/conf目录下的settings.xml
在mirrors节点下添加

<mirror> 
    <id>aliyun-maven</id> 
    <mirrorOf>*</mirrorOf> 
    <name>aliyun maven</name> 
    <url>http://maven.aliyun.com/nexus/content/groups/public</url> 
</mirror>

配置maven环境变量
修改/etc/profile

export M2_HOME=/usr/local/maven
export PATH=$PATH:$M2_HOME/bin

配置java环境变量

export JAVA_HOME="/usr/java/jdk1.8.0_181-amd64"
export CLASS_PATH="$JAVA_HOME/lib"
export PATH=".$PATH:$JAVA_HOME/bin"

环境变量修完执行source /etc/profile立即生效
进入rocketmq主目录编译项目

mvn -Prelease-all -DskipTests clean install -U

3.启动nameserver

bin目录下执行

./mqnamesrv

正常提示
RocketMQ   编译安装 Helloworld - 图3

4.启动Broker

./mqbroker -n localhost:9876

正常提示
RocketMQ   编译安装 Helloworld - 图4

5.测试消息发送

使用tool.sh脚本执行测试程序
在bin目录下执行

./tools.sh org.apache.rocketmq.example.quickstart.Producer

提示如下表示成功
RocketMQ   编译安装 Helloworld - 图5
6.接受消息

./tools.sh org.apache.rocketmq.example.quickstart.Consumer

控制台rocketmq-console编译安装

下载

https://github.com/apache/rocketmq-externals
中文指南
https://github.com/apache/rocketmq-externals/blob/master/rocketmq-console/doc/1_0_0/UserGuide_CN.md

上传到服务器并解压缩

编译

进入rocketmq-console目录
执行编译

mvn clean package -Dmaven.test.skip=true

启动

编译成功后在rocketmq-console/target目录下执行rocketmq-console-ng-1.0.1.jar
启动时，直接动态添加nameserver地址或编辑application.properties添加属性

java -jar rocketmq-console-ng-1.0.1.jar --rocketmq.config.namesrvAddr=127.0.0.1:9876

启动成功后访问服务器8080端口即可
RocketMQ   编译安装 Helloworld - 图6

pom.xml依赖

<dependency>
        <groupId>org.apache.rocketmq</groupId>
        <artifactId>rocketmq-client</artifactId>
        <version>4.6.1</version>
 </dependency>

安装启动常见错误

编译时包无法在mirror上找到 提示502错误

原因：网络不好或maven仓库服务器出错
重试即可，或者欢迎镜像仓库

发送失败提示connect to null failed

./tools.sh org.apache.rocketmq.example.quickstart.Producer
22:49:02.470 [main] DEBUG i.n.u.i.l.InternalLoggerFactory - Using SLF4J as the default logging framework
RocketMQLog:WARN No appenders could be found for logger (io.netty.util.internal.PlatformDependent0).
RocketMQLog:WARN Please initialize the logger system properly.
java.lang.IllegalStateException: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to
 null failed

原因：不知道nameserver在哪儿
在tools脚本中添加

export NAMESRV_ADDR=localhost:9876

启动broker失败 Cannot allocate memory

原因：jvm启动初始化内存分配大于物理内存

[root@node-113b bin]# ./mqbroker -n localhost:9876
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000005c0000000, 8589934592, 0) failed
; error='Cannot allocate memory' (errno=12)#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 8589934592 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /usr/local/rocketmq/bin/hs_err_pid1997.log

修改启动脚本中的jvm参数
runbroker.sh broker
runserver.sh nameserver
默认数值给的都很大，改小即可

JAVA_OPT="${JAVA_OPT} -server -Xms256m -Xmx256m -Xmn128m -XX:MetaspaceSize=64m -XX:MaxMetaspaceSize=100m"

启动broker成功但提示：Failed to obtain the host name

[root@node-113b bin]# ./mqbroker -n localhost:9876
22:30:42.307 [main] ERROR RocketmqCommon - Failed to obtain the host name
java.net.UnknownHostException: node-113b: node-113b: No address associated with hostname
    at java.net.InetAddress.getLocalHost(InetAddress.java:1505) ~[na:1.8.0_181]
    at org.apache.rocketmq.common.BrokerConfig.localHostName(BrokerConfig.java:189) [rocketmq-common-4.6
.1.jar:4.6.1]    at org.apache.rocketmq.common.BrokerConfig.<init>(BrokerConfig.java:38) [rocketmq-common-4.6.1.jar:4
.6.1]    at org.apache.rocketmq.broker.BrokerStartup.createBrokerController(BrokerStartup.java:110) [rocketmq
-broker-4.6.1.jar:4.6.1]    at org.apache.rocketmq.broker.BrokerStartup.main(BrokerStartup.java:58) [rocketmq-broker-4.6.1.jar:4
.6.1]Caused by: java.net.UnknownHostException: node-113b: No address associated with hostname
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_181]
    at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_181]
    at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_181]
    at java.net.InetAddress.getLocalHost(InetAddress.java:1500) ~[na:1.8.0_181]
    ... 4 common frames omitted
The broker[DEFAULT_BROKER, 192.168.150.213:10911] boot success. serializeType=JSON and name server is localh
ost:9876

原因：无法解析当前的主机名
hosts里添加映射即可

192.168.150.213 node-113b

linux日期校准

安装ntpdate

yum install ntpdate
ntpdate ntp1.aliyun.com