介绍Hbase数据库2.0.0版本

Hbase数据库2.0.0版本介绍 Assignment Manager v1 root of many operational headaches ● Redo based on custom “ProcedureV2”-based State Machine ○ Scale/Performance ○ All Master ops recast as Pv2 procedures ■ E.g. Move is a Procedure composed of an Unassign and Assign subprocedure... ● Operation aggregation ● Entity locking mechanism ○ Isolate operations on tables, regions, servers ○ Parallelization ● One hbase:meta writer, the Master