你这样查一下tiflash节点是否还有副本，没有的话可以–force强制缩容了
select p.region_id,p.peer_id,p.store_id,m.ADDRESS
from
TIKV_REGION_STATUS s
join TIKV_REGION_PEERS p
on s.region_id=p.region_id
join TIKV_STORE_STATUS m on m.store_id=p.store_id
where m.LABEL like '%tiflash%' and m.ADDRESS like '%tiflash_ip%'