registerMXBean();
initDataXceiver(conf);
startInfoServer(conf);
// BlockPoolTokenSecretManager is required to create ipc server.
this.blockPoolTokenSecretManager = new BlockPoolTokenSecretManager();
// Login is done by now. Set the DN user name.
dnUserName = UserGroupInformation.getCurrentUser().getShortUserName();
LOG.info("dnUserName = " + dnUserName);
LOG.info("supergroup = " + supergroup);