CentOS7下安装RocketMQ4.2.0

前提：部署rocketmq依赖JDK（1.8+）和MAVEN（3.2.X）

环境：CentOS7，内存4G

1. 下载最新的rocketmq源码文件

下载地址：http://mirrors.hust.edu.cn/apache/rocketmq/4.2.0/rocketmq-all-4.2.0-source-release.zip

1. 下载压缩包
2. 解压缩
3. mvn安装

shell> wget http://mirrors.hust.edu.cn/apache/rocketmq/4.2.0/rocketmq-all-4.2.0-source-release.zip
shell> unzip rocketmq-all-4.2.0-source-release.zip
shell> cd rocketmq-all-4.2.0/
shell> mvn -Prelease-all -DskipTests clean install -U
shell> cd distribution/target/apache-rocketmq

2. 启动Name Server

> nohup sh bin/mqnamesrv &
> tail -f ~/logs/rocketmqlogs/namesrv.log
The Name Server boot success......

3. 启动Broker

> nohup sh bin/mqbroker -n localhost:9876 &
> tail -f ~/logs/rocketmqlogs/broker.log 
The broker[%s, 172.30.30.233:10911] boot success...

 

TIP. 跳坑部分

1. 无法启动NameServer

[wangyanrui@bogon apache-rocketmq]$ sh bin/mqnamesrv
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000005c0000000, 4294967296, 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 4294967296 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /home/wangyanrui/rocketmq-all-4.2.0/distribution/target/apache-rocketmq/hs_err_pid2081.log

提示无法分配内存（前面说了，CentOS目前的内存为4G，也开了一些其他的服务）

解决办法：

修改bin目录下的runserver.sh，根据本机的内存，修改如下部分即可

JAVA_OPT="${JAVA_OPT} -server -Xms4g -Xmx4g -Xmn2g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m"

 2. 无法启动Broker

提示部分如上

解决办法：

修改bin目录下的runbroker.sh，根据本机内存，修改如下部分即可

JAVA_OPT="${JAVA_OPT} -server -Xms8g -Xmx8g -Xmn4g"