public RegionMoverBuilder excludeFile(String excludefile) {
      this.excludeFile = excludefile;
      return this;
    }
Path of file containing hostnames to be excluded during region movement. Exclude file should
have 'host:port' per line. Port is mandatory here as we can have many RS running on a single
host.
hbase-server/src/main/java/org/apache/hadoop/hbase/util/RegionMover.java