系统日志如下：
Aug 16 17:48:15 TIDB-PD1 systemd: Created slice User Slice of tidb.
Aug 16 17:48:15 TIDB-PD1 systemd-logind: New session 6512 of user tidb.
Aug 16 17:48:15 TIDB-PD1 systemd: Started Session 6512 of user tidb.
Aug 16 17:48:15 TIDB-PD1 systemd-logind: Removed session 6512.
Aug 16 17:48:15 TIDB-PD1 systemd: Removed slice User Slice of tidb.
Aug 16 17:48:15 TIDB-PD1 systemd: Created slice User Slice of tidb.
Aug 16 17:48:15 TIDB-PD1 systemd-logind: New session 6513 of user tidb.
Aug 16 17:48:15 TIDB-PD1 systemd: Started Session 6513 of user tidb.
Aug 16 17:48:15 TIDB-PD1 systemd: Reloading.
Aug 16 17:48:15 TIDB-PD1 systemd: Started blackbox_exporter service.
Aug 16 17:48:15 TIDB-PD1 systemd-logind: Removed session 6513.
Aug 16 17:48:15 TIDB-PD1 systemd: Removed slice User Slice of tidb.
Aug 16 17:48:15 TIDB-PD1 bash: level=info ts=2022-08-16T09:48:15.669186844Z caller=main.go:213 msg=“Starting blackbox_exporter” version="(version=0.12.0, branch=HEAD, revision=4a22506cf0cf139d9b2f9cde099f0012d9fcabde)"
Aug 16 17:48:15 TIDB-PD1 bash: level=info ts=2022-08-16T09:48:15.669802622Z caller=main.go:220 msg=“Loaded config file”
Aug 16 17:48:15 TIDB-PD1 bash: level=info ts=2022-08-16T09:48:15.669927186Z caller=main.go:324 msg=“Listening on address” address=:9115
Aug 16 17:48:15 TIDB-PD1 systemd: Created slice User Slice of tidb.
Aug 16 17:48:15 TIDB-PD1 systemd-logind: New session 6514 of user tidb.
Aug 16 17:48:15 TIDB-PD1 systemd: Started Session 6514 of user tidb.
Aug 16 17:48:15 TIDB-PD1 systemd-logind: Removed session 6514.
Aug 16 17:48:15 TIDB-PD1 systemd: Removed slice User Slice of tidb.
Aug 16 17:51:25 TIDB-PD1 systemd: tidb-4000.service: main process exited, code=exited, status=2/INVALIDARGUMENT
Aug 16 17:51:25 TIDB-PD1 systemd: Unit tidb-4000.service entered failed state.
Aug 16 17:51:25 TIDB-PD1 systemd: tidb-4000.service failed.
Aug 16 17:51:40 TIDB-PD1 systemd: tidb-4000.service holdoff time over, scheduling restart.
Aug 16 17:51:40 TIDB-PD1 systemd: Stopped tidb service.
Aug 16 17:51:40 TIDB-PD1 systemd: Started tidb service.
Aug 16 17:51:40 TIDB-PD1 bash: [2022/08/16 17:51:40.508 +08:00] [WARN] [config.go:1004] [“Some configuration options should be moved to [instance] section. Please use the latter config options in [instance] instead: (slow-threshold, tidb_slow_log_threshold).”]
Aug 16 17:51:46 TIDB-PD1 systemd: tidb-4000.service: main process exited, code=exited, status=2/INVALIDARGUMENT
Aug 16 17:51:46 TIDB-PD1 systemd: Unit tidb-4000.service entered failed state.
Aug 16 17:51:46 TIDB-PD1 systemd: tidb-4000.service failed.
Aug 16 17:52:01 TIDB-PD1 systemd: tidb-4000.service holdoff time over, scheduling restart.
Aug 16 17:52:01 TIDB-PD1 systemd: Stopped tidb service.
Aug 16 17:52:01 TIDB-PD1 systemd: Started tidb service.
Aug 16 17:52:01 TIDB-PD1 bash: [2022/08/16 17:52:01.256 +08:00] [WARN] [config.go:1004] [“Some configuration options should be moved to [instance] section. Please use the latter config options in [instance] instead: (slow-threshold, tidb_slow_log_threshold).”]
Aug 16 18:00:01 TIDB-PD1 systemd: Started Session 6515 of user root.