hbase shell group (12个命令组)
general、dll、dml、tools、replication、snapshots、configuration、quotas、procedures..., cleaner_chore_enabled, cleaner_chore_run, cleaner_chore_switch, clear_deadservers,
close_region, compact..., compact_rs, compaction_state, flush, is_in_maintenance_mode, list_deadservers,
major_compact, merge_region