RocketMQ入门到精通（一） 超级详细Linux下安装部署RocketMQ_linux下安装rocketmq

Linux安装环境

1、jdk1.8
2、maven
如果 linux没安装，请自行搜索，很多教程

步骤：

安装包

链接：https://pan.baidu.com/s/1oJ0F-GQNjA9a4kpDQcI5KA
提取码：zxq6

master：为主要安装包
externals-master：为可视化管理工具包
将文件移入linux root目录下
分别解压
unzip rocketmq-master.zip
unzip rocketmq-externals-master.zip
如图：

进入rocketmq-master主目录下

运行编译指令进行编译：
mvn -Prelease-all -DskipTests clean install -U
编译成功会生成distribution文件夹，进入该文件夹的target文件夹下
找到编译成功后的rocketmq-4.6.1

将改文件移动到/usr/local/目录下
进入该文件夹的bin目录下
cd /usr/local/rocketmq-4.6.1/bin

然后运行./mqnamesrv
运行成功后为：

在这可能会报错，最后附上报错怎么处理
这里运行的./mqnamesrv类似与一个注册中心

还需要运行一个broker服务

在当前目录下 另外开一个窗口运行
./mqbroker -n localhost:9876
运行成功后为：

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，则表示成功

测试接收消息

在开一个窗口在bin目录下运行

./tools.sh org.apache.rocketmq.example.quickstart.Consumer
能接收到信息表示环境部署成功；

附上 安装启动过程中常见错误

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
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原因：不知道nameserver在哪儿

在tools脚本中添加

export NAMESRV_ADDR=localhost:9876
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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

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修改启动脚本中的jvm参数

vim runbroker.sh broker

vim 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"
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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
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原因 ：无法解析当前的主机名

hosts里添加映射即可

192.168.... ... 主机别名
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