private void stripMaster(List<ServerName> regionServers) throws IOException {
    ServerName master = admin.getClusterMetrics(EnumSet.of(Option.MASTER)).getMasterName();
    stripServer(regionServers, master.getHostname(), master.getPort());
  }
Exclude master from list of RSs to move regions to
hbase-server/src/main/java/org/apache/hadoop/hbase/util/RegionMover.java