void onPostStart() throws Exception {
  super.onPostStart();
  for (  String peer : obsoletePeers) {
    log.info("Remove node {} from cassandra peer table",peer);
    SystemKeyspace.removeEndpoint(InetAddress.getByName(peer));
  }
  removeFlag(Constants.OBSOLETE_CASSANDRA_PEERS);
}

void onPostStart ( ) throws Exception { super . onPostStart ( ) ; for ( String peer : obsoletePeers ) { log . info ( "Remove node {} from cassandra peer table" , peer ) ; SystemKeyspace . removeEndpoint ( InetAddress . getByName ( peer ) ) ; } removeFlag ( Constants . OBSOLETE_CASSANDRA_PEERS ) ; }
drop peers info and token from system table
