00] [FATAL] [server.rs:428] [“panic_mark_file /home/tidb/tidb-data/tikv-20160/panic_mark_file exists, there must be something wrong with the db. Do not remove the panic_mark_file and force the TiKV node to restart. Please contact TiKV maintainers to investigate the issue. If needed, use scale in and scale out to replace the TiKV node. https://docs.pingcap.com/tidb/stable/scale-tidb-using-tiup”]