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(1)Storage Engine拿到device ID,根据其逻辑存储组名找到对应的StorageGroupManager
(2)使用StorageGroupManager.getAllVirutalStorageGroupProcessor方法拿到所属全部虚拟存储组(方案二中就是StorageGroupProcessor)
(3)将请求转发至所有虚拟存储组


3.5主要开发任务
(1)建立VirtualPartitioner接口和相关实现类
(2)修改存储组分配逻辑
(3)修改merge相关代码
(4)修改恢复相关代码
(5)功能相关配置和开关
(6)协同sync和分布式进行代码修改
(7)全面的测试检查和修复,包括分布式相关测试
(8)正确性测试
(9)性能测试