Region Server metrics context will be wrong when machine hostname contain "master" word

    String name = rs.getProcessName() + "/" + initialIsa.toString();

  protected static String createContextName(String serverName) {
    if (serverName.contains("HMaster") || serverName.contains("master")) {
      return "Master";
    } else if (serverName.contains("HRegion") || serverName.contains("regionserver")) {
      return "RegionServer";
    }
    return "IPC";
  }