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systemd 计时器不显示触发器且不重复

tag-icon • tag-icon debian systemd systemd-timer
systemd 计时器不显示触发器且不重复

正如中所解释的GoAccess 1.4详细教程，我创建了一个 goa-daily.timer

[Unit]
Description=Daily update of GoAccess reports

[Timer]
# Every day @ 3 O'clock
OnCalendar=*-*-* 03:00:00
RandomizedDelaySec=7200
Persistent=true
Unit=goa-daily.service

[Install]
WantedBy=timers.target

无论我如何定义该OnCalendar选项，当我检查计时器状态时，它总是有一个Trigger: n/a，而所有其他计时器都有一个触发器。

root@scw:/etc/systemd/system/timers.target.wants# ll
total 0
lrwxrwxrwx 1 root root 35 sep 28  2020 apt-daily.timer -> /lib/systemd/system/apt-daily.timer
lrwxrwxrwx 1 root root 43 sep 28  2020 apt-daily-upgrade.timer -> /lib/systemd/system/apt-daily-upgrade.timer
lrwxrwxrwx 1 root root 33 nov 30  2020 certbot.timer -> /lib/systemd/system/certbot.timer
lrwxrwxrwx 1 root root 35 fév 23 23:01 goa-daily.timer -> /etc/systemd/system/goa-daily.timer
lrwxrwxrwx 1 root root 35 sep 28  2020 logrotate.timer -> /lib/systemd/system/logrotate.timer
lrwxrwxrwx 1 root root 32 sep 28  2020 man-db.timer -> /lib/systemd/system/man-db.timer

root@scw:/etc/systemd/system/timers.target.wants# systemctl status goa-daily.timer 
● goa-daily.timer - Daily update of GoAccess reports
   Loaded: loaded (/etc/systemd/system/goa-daily.timer; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2022-01-31 15:43:42 UTC; 3 weeks 2 days ago
  Trigger: n/a

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.
root@scw:/etc/systemd/system/timers.target.wants# systemctl status logrotate.timer 
● logrotate.timer - Daily rotation of log files
   Loaded: loaded (/lib/systemd/system/logrotate.timer; enabled; vendor preset: enabled)
   Active: active (waiting) since Tue 2022-01-04 08:00:34 UTC; 1 months 20 days ago
  Trigger: Thu 2022-02-24 00:00:00 UTC; 49min left
     Docs: man:logrotate(8)
           man:logrotate.conf(5)

为什么我的计时器不显示任何触发器？我已启用它：systemctl enable --now goa-daily.timer 我还应该做什么才能使用触发器运行计时器？我使用的是 Debian 10 (buster)

goa-daily.service 的状态

# systemctl status goa-daily.service
● goa-daily.service - Application
   Loaded: loaded (/etc/systemd/system/goa-daily.service; enabled; vendor preset: enabled)
   Active: active (exited) since Mon 2022-01-31 16:08:54 UTC; 3 weeks 2 days ago
 Main PID: 17337 (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 2347)
   Memory: 0B
   CGroup: /system.slice/goa-daily.service

谢谢@模糊绘图评论，我注意到这daemon-reload对计时器更改没有影响。stop计时器start添加了触发器！

# systemctl stop goa-daily.timer 
# systemctl start goa-daily.timer 
# systemctl status goa-daily.timer 
● goa-daily.timer - Daily update of GoAccess reports
   Loaded: loaded (/etc/systemd/system/goa-daily.timer; enabled; vendor preset: enabled)
   Active: active (waiting) since Thu 2022-02-24 08:51:34 UTC; 4s ago
  Trigger: Thu 2022-02-24 08:54:00 UTC; 2min 21s left

但是运行计时器后，状态显示一个/一个触发器，至少具有 OnCalendar 日期时间定义，例如OnCalendar=*-*-* 08:54:00.

# systemctl status goa-daily.timer 
● goa-daily.timer - Daily update of GoAccess reports
   Loaded: loaded (/etc/systemd/system/goa-daily.timer; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2022-02-24 08:51:34 UTC; 2min 30s ago
  Trigger: n/a

我错过了什么让它每天重复？？？我将使用每日选项进行测试并明天检查......

答案1

从服务的显示来看，状态为活动状态。我相信你的计时器不会触发正在运行的服务单元。服务单元可能由于某种原因失败，但系统不知道，或者它已被编码为在结束后保持活动状态。

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