2 Proto定义

enum Type {
  // User cmd
  kRead = 0;
  kWrite = 1;
  kDirtyWrite = 2;
  kDelete = 3;

  // Raft RPC
  kRequestVote = 8;
  kAppendEntries = 9;
  kServerStatus = 10;
}

CmdRequest 所有的 request pb 里面会包含具体的请求类型

CmdResponse 所有的response pb 里面包含对具体的请求的应答