private void processSetList() throws IOException {
      super.execute();

      // List all backup set names
      // does not expect any args
      try (BackupAdminImpl admin = new BackupAdminImpl(conn)) {
        List<BackupSet> list = admin.listBackupSets();
        for (BackupSet bs : list) {
          System.out.println(bs);
        }
      }
    }
Command requires consistent state of a backup system Backup system may become inconsistent
because of an abnormal termination of a backup session or delete command
@return true, if yes
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupCommands.java