Black- box_exporter com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) ac- cess 98 (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured log Output example: ## 320ms user time, 20ms system time, 27.00M rss, 221.32M vsz ## Current date: Mon Mar 18 13:18:51 2019 ## Hostname: localhost.localdomain ## Files: tidb-slow.log ## Overall: 1.02k total

Black- box_exporter com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) ac- cess 118 (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured log Output example: ## 320ms user time, 20ms system time, 27.00M rss, 221.32M vsz ## Current date: Mon Mar 18 13:18:51 2019 ## Hostname: localhost.localdomain ## Files: tidb-slow.log ## Overall: 1.02k total

Black- box_exporter com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) ac- cess 106 (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured log Output example: ## 320ms user time, 20ms system time, 27.00M rss, 221.32M vsz ## Current date: Mon Mar 18 13:18:51 2019 ## Hostname: localhost.localdomain ## Files: tidb-slow.log ## Overall: 1.02k total

Black- box_exporter com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) ac- cess 122 (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured log Output example: ## 320ms user time, 20ms system time, 27.00M rss, 221.32M vsz ## Current date: Mon Mar 18 13:18:51 2019 ## Hostname: localhost.localdomain ## Files: tidb-slow.log ## Overall: 1.02k total

nica- tion port for the Prometheus ser- vice Monitoring 12020 the com- mu- nica- tion port for the Ng- Mon- itor- ing ser- vice 546 Component Default Port Description Node_exporter 9100 the com- mu- nica- com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter 547 Component Default Port Description Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured

609 Component Default Port Description Monitoring 12020 the com- mu- nica- tion port for the Ng- Mon- itor- ing ser- vice Node_exporter 9100 the com- mu- nica- tion port to re- port the sys- tem in- for- Black- box_exporter com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) ac- cess 611 (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured

nica- tion port for the Prometheus ser- vice Monitoring 12020 the com- mu- nica- tion port for the Ng- Mon- itor- ing ser- vice 614 Component Default Port Description Node_exporter 9100 the com- mu- nica- com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter 615 Component Default Port Description Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured

621 Component Default Port Description Monitoring 12020 the com- mu- nica- tion port for the Ng- Mon- itor- ing ser- vice Node_exporter 9100 the com- mu- nica- tion port to re- port the sys- tem in- for- Black- box_exporter com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) ac- cess 623 (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured

nica- tion port for the Prometheus ser- vice Monitoring 12020 the com- mu- nica- tion port for the Ng- Mon- itor- ing ser- vice 628 Component Default Port Description Node_exporter 9100 the com- mu- nica- com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter 629 Component Default Port Description Grafana3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured

nica- tion port for the Prometheus ser- vice Monitoring 12020 the com- mu- nica- tion port for the Ng- Mon- itor- ing ser- vice 618 Component Default Port Description Node_exporter 9100 the com- mu- nica- com- mu- nica- tion port, used to mon- itor the ports in the TiDB clus- ter 619 Component Default Port Description Grafana 3000 the port for the ex- ter- nal Web mon- itor- ing ser- vice and client (Browser) (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon 2021-04-05 09:55:29 EDT; 3 days �→ ago If the result shows that neither chronyd nor ntpd is configured