1.我们都知道要保证消息不丢失需要从以下三个方面去保证
- 1)保证发送端必须发送成功,最好是broker端给了ack之后才表示发送成功,不然就需要重试发送。
- 2)保证broker端保存成功,一方面是master节点持久化成功,另一方面是follower节点也要持久化成功,不然master节点挂了消息就丢失了
- 3)保证消费者短消费成功,如果消费者刚接收到消息还没进行业务处理就挂了,然后broker就认为消息成功消费了,那么消息也丢失了。
rocketmq部署操作
https://github.com/apache/rocketmq/blob/master/docs/cn/operation.md
单机部署多个rocketmq文章
http://www.nutz.cn/yvr/t/vutr8fb76ei9brpg80ulaqi9n3
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/
#启动namesrv
nohup ./mqnamesrv > /dev/null 2>&1 &
#启动broker
#nohup ./mqbroker -n 127.0.0.1:9876 autoCreateTopicEnable=true > /dev/null 2>&1 &
nohup ./mqbroker -c ../conf/broker.conf >/dev/null 2>&1 &
#启动rocketmqconsole
cd /usr/local/opt/rocketmq-externals-master/rocketmq-console/target
java -jar rocketmq-console-ng-1.0.1.jar --server.port=12581 --rocketmq.config.namesrvAddr=127.0.0.1:9876
#查看地址
http://localhost:12581/#/cluster
多broker启动
nohup sh mqbroker -n "192.168.31.46:9876;192.168.31.237:9876;192.168.31.237:9877" -c ../conf/2m-2s-sync/broker-a.properties &
nohup sh mqbroker -n "192.168.31.46:9876;192.168.31.237:9876;192.168.31.237:9877" -c ../conf/2m-2s-sync/broker-a-s.properties &
nohup sh mqbroker -n "192.168.31.46:9876;192.168.31.237:9876;192.168.31.237:9877" -c ../conf/2m-2s-sync/broker-b.properties &
nohup sh mqbroker -n "192.168.31.46:9876;192.168.31.237:9876;192.168.31.237:9877" -c ../conf/2m-2s-sync/broker-b-s.properties &
#关闭命令
./mqshutdown broker
./mqshutdown namesrv
broker-b-s.properties配置
brokerClusterName=DefaultCluster
brokerName=broker-b
brokerId=1
deleteWhen=04
fileReservedTime=48
brokerRole=SLAVE
flushDiskType=ASYNC_FLUSH
listenPort=10950
storePathRootDir=/usr/local/rocketmq/data/store/slave
storePathCommitLog=/usr/local/rocketmq/data/store/slave/commitlog
broker-b.properties配置
brokerClusterName=DefaultCluster
brokerName=broker-b
brokerId=0
deleteWhen=04
fileReservedTime=48
brokerRole=SYNC_MASTER
flushDiskType=ASYNC_FLUSH
listenPort=10911
storePathRootDir=/usr/local/rocketmq/data/store/master
storePathCommitLog=/usr/local/rocketmq/data/store/master/commitlog