@Override
public Token getRMDelegationToken(Text renewer) throws YarnException, IOException {
/* get the token from RM */
GetDelegationTokenRequest rmDTRequest = Records.newRecord(GetDelegationTokenRequest.class);
rmDTRequest.setRenewer(renewer.toString());
GetDelegationTokenResponse response = rmClient.getDelegationToken(rmDTRequest);
return response.getRMDelegationToken();
}
