【 TiDB 使用环境`】测试环境
【 TiDB 版本】v5.4.1
【遇到的问题】drop database 卡死
【复现路径】无操作，重现两次
【问题现象及影响】
- 集群正常运行，无任何操作，drop database卡住，kill sid 无法终止，admin cancel 终止卡住，发起关闭集群的命令，drop database会在集群关闭的瞬间显示执行成功。
- 集群重启后，在创建database，drop database，均正常，之后命令关闭集群，关机
- 第三天开启集群，执行drop database 又卡住
- 观察监控PD KV 都没有任何操作，regions没有任何变化
【附件】
请提供各个组件的 version 信息，如 cdc/tikv，可通过执行 cdc version/tikv-server --version 获取。
-------------------tidb log-----------------------------------------------------------------------------------------------------------
[2022/05/27 14:32:40.225 +08:00] [WARN] [expensivequery.go:179] [expensive_query] [cost_time=60.091859531s] [conn_id=7] [user=root] [txn_start_ts=0] [mem_max=“0 Bytes (0 Bytes)”] [sql=“drop database tpcc”]
[2022/05/27 14:32:58.432 +08:00] [INFO] [gc_worker.go:300] [“[gc worker] there’s already a gc job running, skipped”] [“leaderTick on”=6040cc8a9280004]
[2022/05/27 14:33:38.676 +08:00] [INFO] [gc_worker.go:701] [“[gc worker] start delete ranges”] [uuid=6040cc8a9280004] [ranges=0]
[2022/05/27 14:33:38.676 +08:00] [INFO] [gc_worker.go:750] [“[gc worker] finish delete ranges”] [uuid=6040cc8a9280004] [“num of ranges”=0] [“cost time”=261ns]
[2022/05/27 14:33:38.677 +08:00] [INFO] [gc_worker.go:773] [“[gc worker] start redo-delete ranges”] [uuid=6040cc8a9280004] [“num of ranges”=0]
[2022/05/27 14:33:38.677 +08:00] [INFO] [gc_worker.go:802] [“[gc worker] finish redo-delete ranges”] [uuid=6040cc8a9280004] [“num of ranges”=0] [“cost time”=246ns]
[2022/05/27 14:33:38.682 +08:00] [INFO] [gc_worker.go:1562] [“[gc worker] sent safe point to PD”] [uuid=6040cc8a9280004] [“safe point”=433489842907906048]
