code: public void setOwner(Path f, String user, String group) throws IOException {
      try (Closeable context = new TimerContextWithLog(this.setOwnerTimer.time(), "setOwner", f, user, group)) {
        super.setOwner(f, user, group);
      }
    }
docs: Add timer metrics to {@link DistributedFileSystem#setOwner(Path, String, String)}