cluster_name 集群名称，可调整 tidb_version TiDB 版本，TiDB-Ansible 各分支默认已配置 process_supervision 进程监管方式，默认为 systemd，可选 supervise timezone 修改部署目标机器时区，默认为 Asia/Shanghai ，可调整，与 set_timezone 变量结合使用 set_timezone 默认为 systemctl status ntpd.service 2. ● ntpd.service - Network Time Service 3. Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor preset: disabled) 4. Active: active (running) since 一 2017-12-18 3. $ sudo systemctl enable ntpd.service 1. # process supervision, [systemd, supervise] 如何检测 NTP 服务是否正常 如何调整进程监管方式从 supervise 到 systemd Ansible 部署方案（强烈推荐） - 218 - 本文档使用 书栈(BookStack.CN) 构建 TiDB-Anisble

systemctl status ntpd.service 102 ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor �→ preset: disabled) Active: active (running) since 一 2017-12-18 sudo systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon --type=devices --action=change 7. Create a service to configure the CPU power policy: cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot ExecSta

systemctl status ntpd.service 126 ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor �→ preset: disabled) Active: active (running) since 一 2017-12-18 sudo systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon --type=devices --action=change 7. Create a service to configure the CPU power policy: cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot ExecSta

systemctl status ntpd.service 110 ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor �→ preset: disabled) Active: active (running) since 一 2017-12-18 sudo systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon --type=devices --action=change 7. Create a service to configure the CPU power policy: cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot ExecSta

systemctl status ntpd.service 554 ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor �→ preset: disabled) Active: active (running) since 一 2017-12-18 sudo systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon --type=devices --action=change 7. Create a service to configure the CPU power policy: cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot ExecSta

systemctl status ntpd.service 122 ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor �→ preset: disabled) Active: active (running) since 一 2017-12-18 sudo systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon --type=devices --action=change 7. Create a service to configure the CPU power policy: cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot ExecSta

sudo systemctl status ntpd.service ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor preset: disabled) Active: active (running) since 一 2017-12-18 systemctl status chronyd.service 83 chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; vendor preset: �→ enabled) Active: active (running) since Mon --reload-rules udevadm trigger --type=devices --action=change 7. 创建 CPU 节能策略配置服务。 cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot Ex

systemctl status ntpd.service 76 ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor preset: disabled) Active: active (running) since 一 2017-12-18 systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; vendor preset: �→ enabled) Active: active (running) since Mon --reload-rules udevadm trigger --type=devices --action=change 7. 创建 CPU 节能策略配置服务。 cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot Ex

sudo systemctl status ntpd.service ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor preset: disabled) Active: active (running) since 一 2017-12-18 systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; vendor preset: �→ enabled) Active: active (running) since Mon --reload-rules udevadm trigger --type=devices --action=change 7. 创建 CPU 节能策略配置服务。 cat >> /etc/systemd/system/cpupower.service << EOF [Unit] Description=CPU performance [Service] Type=oneshot Ex

@dveeden • Fix the issue that TiDB does not read cgroup resource limits when it is started with systemd #47442 @hawkingrei • TiKV • Fix the issue that retrying prewrite requests in the pessimistic transaction sudo systemctl status ntpd.service ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled; vendor �→ preset: disabled) Active: active (running) since 一 2017-12-18 sudo systemctl status chronyd.service chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; �→ vendor preset: enabled) Active: active (running) since Mon