syntax = "proto3";
package metapb;


message Cluster {
    uint64 id = 1;
    // max peer count for a region.
    // pd will do the auto-balance if region peer count mismatches.
    uint32 max_peer_count = 1024;
    // more attributes......
}

enum PeerRole {

    Master = 0;

    Reader = 1;

    Write = 2;

    Proxyer = 3;

}

message Peer {
    uint64 id = 1;
    uint64 peer_id = 2;
    PeerRole role = 3;
}