前言
这篇文章以4.3.0版本为标准进行讲述在linux下部署RocketMQ单机实例,在此之前需要已配置JAVA环境。
apache RocketMQ 是阿里巴巴在2016年11月捐赠给了apache基金会并于2017年9月顺利毕业成为apache顶级项目。
下载程序包
直接使用一般就下载已经编译好的二进制文件就好了,下载好以后
> unzip rocketmq-all-4.3.0-bin-release.zip
> cd rocketmq-all-4.3.0-bin-release/
启动name server
> nohup sh bin/mqnamesrv &
tail一下日志看看是否已经启动成功
> tail -f ~/logs/rocketmqlogs/namesrv.log
The Name Server boot success...
启动Broker
> nohup sh bin/mqbroker -n localhost:9876 &
tail一下日志看看是否已经启动成功
> tail -f ~/logs/rocketmqlogs/broker.log
The broker[%s, 172.30.30.233:10911] boot success...
发送消息和接收消息
为了简单测试下,在发送/接收消息之前我们需要设置NAMESRV_ADDR
环境变量
> export NAMESRV_ADDR=localhost:9876
发送消息,测试用例中的方式是使用for循环发送了1000条消息
> sh bin/tools.sh org.apache.rocketmq.example.quickstart.Producer
SendResult [sendStatus=SEND_OK, msgId= ...
接收消息
> sh bin/tools.sh org.apache.rocketmq.example.quickstart.Consumer
SendResult [sendStatus=SEND_OK, msgId= ...
关闭服务
> sh bin/mqshutdown broker
The mqbroker(36695) is running...
Send shutdown request to mqbroker(36695) OK
> sh bin/mqshutdown namesrv
The mqnamesrv(36664) is running...
Send shutdown request to mqnamesrv(36664) OK
到此,我们已经完成了一个简单的部署以及消息的发送和接收,但是这只是在内网下进行的收发消息。
FAQ
怎么修改name server和broker的启动内存?
一开始按照官网的步骤来操作往往会直接启动不起来,提示内存不足,那是因为name server和broker默认的启动JVM内存是4G,而内存在不够的情况下自然就启动失败了。
这时候需要修改name server和broker的启动内存参数,
broker的启动内存参数在runbroker.sh
下修改,windows下则是runbroker.cmd
name server的启动内存参数是在runserver.sh
下修改,windows下则是runserver.cmd
需要配置外网访问要怎么配置呢?
在网上见过很多同学在配置外网访问的时候出现问题,得到的提示大多是
No Topic Route Info
这种提示一般都是连接失败了,
1.broker没有允许自动创建topic,且发送消息对应的topic不存在
2.broker没有正确的连接到name server
3.product没有正确的连接到name server
- 对于情况1,在启动
broker
的时候添加autoCreateTopicEnable=true
参数就好了。 - 情况2呢,有可能是name server不存在或者是端口冲突,具体可以看日志的报错原因。
- 情况3的话,一般是端口原因,如果在服务器上本地收发消息都正常但是到了用客户端sdk发消息的时候失败了可以首先查看一下端口本地ping服务器的9876端口和10911端口是否正常,如果正常可以关闭vip通道再次尝试,以JAVA客户端的话就是下面这样
生产者关闭VIP通道:
producer.setVipChannelEnabled(false);
消费者关闭VIP通道:
consumer.setVipChannelEnabled(false);
关闭VIP通道为什么就可以了呢,是因为VIP通道占用了一个端口,10909端口,而服务器的10909端口没有对外开放,所以导致失败了。
配置文件
这是我的broker.properties
配置文件
brokerClusterName = DefaultCluster
brokerName = broker-a
brokerId = 0
deleteWhen = 04
fileReservedTime = 48
brokerRole = ASYNC_MASTER
flushDiskType = ASYNC_FLUSH
brokerIP1=172.17.59.146
brokerIP2=172.17.59.146
namesrvAddr=172.17.59.146:5776
autoCreateTopicEnable=true
因为我没有使用默认的9876端口,所以也有一个name server的配置文件,namesrv.conf
listenPort=5776
也可以直接下载我的broker.properties和namesrv.conf
使用自己的配置文件启动name server和broker的时候都是添加一个指定文件的参数-c 文件路径
到目前为止,一个简单的apache RocketMQ单机实例已经部署好了,开始愉快的消息队列旅程吧!
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