func changeGroup(fs *gowfs.FileSystem, hdfsPath string) {
shell := gowfs.FsShell{FileSystem: fs}
_, err := shell.Chgrp([]string{hdfsPath}, "superduper")
if err != nil {
log.Fatal("Chgrp failed for ", hdfsPath, ": ", err.Error())
}
stat, err := fs.GetFileStatus(gowfs.Path{Name: hdfsPath})
if err != nil {
log.Fatal("Unable to validate chgrp() operation: ", err.Error())
}
if stat.Group == "superduper" {
log.Println("Chgrp for ", hdfsPath, " OK ")
ls(fs, hdfsPath)
} else {
log.Fatal("Chgrp() failed.")
}
}
