[RocksDB剖析系列]|[RocksDB剖析系列] BlockBasedTableBuilder源码解读 [RocksDB剖析系列]BlockBasedTableB

参考：

https://www.jianshu.com/p/9b5...
https://zhuanlan.zhihu.com/p/...

SST File Format 之前在LSM-Tree部分有提过，但当时了解的比较浅

[data block 1] [data block 2] ... [data block N] [meta block 1: filter block] [meta block 2: index block] [meta block 3: compression dictionary block] [meta block 4: range deletion block] [meta block 5: stats block] ... [meta block K: future extended block](More meta blocks may be added in the future) [metaindex block] [Footer](fixed size; starts at file_size - sizeof(Footer))

与BlockBasedTableBuilder相关的类有以下几个

BlockBasedTable, 该类封装了用于读取磁盘BlockBasedTable类型的SST表的逻辑。
BlockBasedTableBuilder, 该类用于在磁盘上构建一个BlockBasedTable类型的SST表。
BlockBasedTableFactory, 该类是BlockBasedTable工厂方法的实现，用于创建BlockBasedTable/BlockBasedTableBuilder。

Write Block的顺序： 【[RocksDB剖析系列]|[RocksDB剖析系列] BlockBasedTableBuilder源码解读】Write meta blocks, metaindex block and footer in the following order.