hadoop@cluster04:~/bin/hadoop/migration/hbase$ bin/hbase migrate check
08/04/17 15:37:33 INFO util.Migrate: Verifying that file system is available...
08/04/17 15:37:33 INFO util.Migrate: Verifying that HBase is not running...
08/04/17 15:37:33 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 1 time(s).
08/04/17 15:37:34 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 2 time(s).
08/04/17 15:37:35 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 3 time(s).
08/04/17 15:37:36 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 4 time(s).
08/04/17 15:37:37 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 5 time(s).
08/04/17 15:37:38 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 6 time(s).
08/04/17 15:37:39 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 7 time(s).
08/04/17 15:37:40 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 8 time(s).
08/04/17 15:37:41 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 9 time(s).
08/04/17 15:37:42 INFO ipc.Client: Retrying connect to server: cluster04.lab.mtl/192.168.1.84:64000. Already tried 10 time(s).
08/04/17 15:37:43 FATAL util.Migrate: Upgrade check failed
java.lang.IllegalArgumentException: Wrong FS: hdfs://cluster04.lab.mtl:9400/hbase/amsterdam_migration, expected: file:///
        at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:240)
        at org.apache.hadoop.fs.FileSystem.makeQualified(FileSystem.java:174)
        at org.apache.hadoop.fs.FilterFileSystem.makeQualified(FilterFileSystem.java:72)
        at org.apache.hadoop.hbase.util.MetaUtils.initialize(MetaUtils.java:85)
        at org.apache.hadoop.hbase.util.Migrate.run(Migrate.java:151)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
        at org.apache.hadoop.hbase.util.Migrate.main(Migrate.java:482)



source code of FileSystem.checkPath():

  /** Check that a Path belongs to this FileSystem. */
  protected void checkPath(Path path) {
    URI uri = path.toUri();
    if (uri.getScheme() == null)                // fs is relative 
      return;
    String thisAuthority = this.getUri().getAuthority();
    String thatAuthority = uri.getAuthority();
    if (!(this.getUri().getScheme().equals(uri.getScheme()) &&
           (thisAuthority == thatAuthority ||
             (thisAuthority != null && thisAuthority.equals(thatAuthority))))){
      throw new IllegalArgumentException("Wrong FS: "+path+
                                         ", expected: "+this.getUri());
    }
  }