@Override
  public long sizeInBytes() {
    return super.sizeInBytes() + Replica_Metadata_Request_Info_List_Size_In_Bytes
        + replicaMetadataRequestInfoListSizeInBytes + Max_Entries_Size_In_Bytes;
  }
Replica metadata request to get new entries for replication
ambry-protocol/src/main/java/com/github/ambry/protocol/ReplicaMetadataRequest.java