后端程序员必备：RocketMQ相关流程图/原理图

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发布时间：2019-02-28

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RocketMQ?????????

RocketMQ???????????????????????????????????????????RocketMQ???????????????????

RocketMQ?????

RocketMQ??????????????????????????????????????Producer?Broker?Consumer?NameServer??????????????????????????

RocketMQ?????

RocketMQ??????????????

NameServer

????Topic?????????Zookeeper???Broker???????????

Producer

?????????Topic?????Producer?????????????????

Broker

?????????????????Broker??Master?Slave?Master???????Slave???????

Consumer

????????????????Consumer?????????????????

RocketMQ?????

RocketMQ?????????NameServer?Producer?Broker?Consumer???????????

NameServer

NameServer??????????????NameServer???Broker??????????Topic?????

Broker

Broker?Master?Slave???Master????????????Slave???????Master?Slave??BrokerName?BrokerId???

Producer

Producer?NameServer??????????????????Topic??????????Master?????

Consumer

Consumer???NameServer?????????????????Topic???????Master?Slave?????

RocketMQ?????

?????RocketMQ??????????????

Producer Group

???????????????Producer???Producer Group??????Topic???????????

Consumer Group

???????????????Consumer???Consumer Group??Consumer???????????????

Topic?Tag

Topic??????????Tag??????????RocketMQ????????????????

Message Queue

RocketMQ?????????????????Topic??????Message Queue??????????????????

RocketMQ???????

RocketMQ?? CommitLog?ConsumeQueue?IndexFile ?????????????

CommitLog

CommitLog??????????????????????????????????Offset?????????CommitLog????????ConsumeQueue?

ConsumeQueue

ConsumeQueue????????????????????ConsumeQueue??????30????????????

IndexFile

IndexFile?????????????Offset?Key??????RocketMQ??Hash????????????????

RocketMQ???????

RocketMQ????????????????

????

?????????????????????????????????????

????

?????????????????????????????????????????????

RocketMQ?????

RocketMQ???????????

???Producer???Broker???CommitLog???

???CommitLog?????ConsumeQueue??Consumer???

???ConsumeQueue??????Socket???Consumer?

RocketMQ??????????????????????????????IO???????????

RocketMQ?????

RocketMQ??MappedFile?FileChannel??????????????????????????????????????????

MappedFile

MappedFile?RocketMQ??????????????????????????MappedByteBuffer?FileChannel???????

CommitLog?ConsumeQueue

CommitLog???????ConsumeQueue???????????????????????

????

RocketMQ???????????????IOPS?SSD????????HDD????????

??

RocketMQ??????????????????????????????????NameServer?Producer?Broker?Consumer??????????????RocketMQ?????????CommitLog?ConsumeQueue?IndexFile????????????????????????????RocketMQ??????????????

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