Bookie存储架构源码剖析

勃列日涅夫二世

目录一、Pulsar存储架构简析二、Bookie的架构设计三、Bookie的数据写入流程????1. client端源码分析????2.?server端源码分析??????? 2.1 请求路由组件：BookieRequestProcessor??????? 2.2 核心线程池任务：WriteEntryProcessorV3??????? 2.3 存储引擎接口抽象：Bookie??????? 2.4 Ledger的管理者：LedgerDescriptor??????? 2.5 Ledger级的接口抽象：LedgerStorage????????????2.5.1?DbLedgerStorage->SingleDirectoryDbLedgerStorage????????????2.5.2 SortedLedgerStorage->InterleavedLedgerStorage??????? 2.6 顺序写入的WAL日志：Journal????????2.7?再论Bookie????3.?server端分析总结四、Bookie的数据读取流程????1.?server端源码分析????????1.1?请求路由????????1.2?BookieImpl#readEntry????????1.3?DefaultEntryLogger如何读取entry????2.?server端分析总结五、读写调用链分析????1.?组件模块分析????????1.1?BufferedChannel????????1.2?EntryLogger????????1.3?LedgerStorage????????1.4?LedgerDescriptor????????1.5?Bookie????????1.6?ReadEntryProcessorV3，WriteEntryProcessorV3????2.?写入流程调用时序????3.?读取流程调用时序六、架构总结