{"id":10424,"date":"2022-07-07T20:44:44","date_gmt":"2022-07-07T12:44:44","guid":{"rendered":"https:\/\/blog.hoyo.idv.tw\/?p=10424"},"modified":"2024-03-23T23:07:21","modified_gmt":"2024-03-23T15:07:21","slug":"systemd-timer-%e6%9c%8d%e5%8b%99%e7%9a%84%e5%ae%9a%e6%99%82%e3%80%81%e6%8e%92%e7%a8%8b%e5%9f%b7%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/blog.hoyo.idv.tw\/?p=10424","title":{"rendered":"Systemd - Timer \u670d\u52d9\u7684\u5b9a\u6642\u3001\u6392\u7a0b\u57f7\u884c"},"content":{"rendered":"<p>--<\/p>\n<h2>\u53c3\u8003\u8cc7\u6e90<\/h2>\n<ul>\n<li><a href=\"https:\/\/malagege.github.io\/blog\/2020\/12\/07\/Systemd-%E6%99%82%E9%96%93%E6%8E%92%E7%A8%8B%E7%AD%86%E8%A8%98\/\" target=\"_blank\" rel=\"noopener\">Systemd \u6642\u9593\u6392\u7a0b\u7b46\u8a18<\/a><\/li>\n<li><a href=\"https:\/\/blog.dcycle.com\/blog\/112\/systemd-replacement-cron-every-10-seconds\/\" target=\"_blank\" rel=\"noopener\">systemd as a replacement for cron every 10 seconds<\/a><\/li>\n<\/ul>\n<p>--<\/p>\n<h2>\u6d41\u7a0b<\/h2>\n<ol>\n<li>\u5efa\u7acb\u4e00\u500b\u670d\u52d9 .service<\/li>\n<li>\u5efa\u7acb\u4e00\u500b\u8a08\u6642\u5668 .timer \uff0c\u57f7\u884c\u525b\u525b\u5efa\u7acb\u7684\u670d\u52d9<\/li>\n<li>\u555f\u7528\u3001\u958b\u59cb\u670d\u52d9\u53ca\u8a08\u6642\u5668<\/li>\n<\/ol>\n<p>--<\/p>\n<h2>\u5efa\u7acb\u670d\u52d9<\/h2>\n<ul>\n<li><a href=\"https:\/\/serverfault.com\/questions\/735932\/how-can-i-output-logs-to-a-file-from-the-content-of-a-service-with-systemd\" target=\"_blank\" rel=\"noopener\">How can I output logs to a file from the content of a service with systemd<\/a><\/li>\n<\/ul>\n<p>\u7bc4\u4f8b\u670d\u52d9\u7684\u529f\u80fd\u5f88\u7c21\u55ae\uff0c\u5c31\u662f\u5c07\u76ee\u524d\u6642\u9593\u9644\u52a0\u5beb\u5165 cron.log \u5167<\/p>\n<p>\/etc\/systemd\/system\/test.service<\/p>\n<pre class=\"lang:default decode:true\">[Unit]\r\nDescription=Timer Service\r\n\r\n[Service]\r\nExecStart=sh -c \"echo `date` &gt;&gt; \/docker\/cron.log\"\r\n\r\n[Install]\r\nWantedBy=multi-user.target<\/pre>\n<p>\u555f\u7528\u3001\u958b\u59cb\u670d\u52d9<\/p>\n<pre class=\"lang:default decode:true\"># systemctl enable test.service\r\n# systemctl start test.service<\/pre>\n<p>--<\/p>\n<h2>\u5efa\u7acb\u8a08\u6642\u5668<\/h2>\n<ul>\n<li><a href=\"http:\/\/www.jinbuguo.com\/systemd\/systemd.timer.html\" target=\"_blank\" rel=\"noopener\">systemd.timer \u4e2d\u6587\u624b\u518c<\/a><\/li>\n<\/ul>\n<p>\/etc\/systemd\/system\/test.timer<\/p>\n<pre class=\"lang:default decode:true\">[Unit]\r\nDescription=Run Timer Service\r\n\r\n[Timer]\r\nOnCalendar=*:*:0\/5\r\nAccuracySec=100ms\r\nUnit=test.service\r\n\r\n[Install]\r\nWantedBy=multi-user.target<\/pre>\n<ul>\n<li>0\/xx \u9664\u591a\u5c11\u5c31\u4ee3\u8868\u5e7e\u79d2\u8dd1\u4e00\u6b21<\/li>\n<li>AccuracySec \u8a08\u7b97\u9593\u9694\uff0c\u6700\u77ed\u70ba 1us<\/li>\n<\/ul>\n<p>\u555f\u52d5\u3001\u958b\u59cb\u8a08\u6642\u5668<\/p>\n<pre class=\"lang:default decode:true\"># systemctl enable test.timer\r\n# systemctl start test.timer<\/pre>\n<p>\u5f8c\u7e8c\u5982\u679c\u6709\u4fee\u6539\uff0c\u9700\u8981\u91cd\u65b0\u8b80\u53d6<\/p>\n<pre class=\"lang:default decode:true\"># systemctl daemon-reload<\/pre>\n<p>--<\/p>\n<h2>\u6392\u7a0b\u57f7\u884c<\/h2>\n<ul>\n<li><a href=\"https:\/\/silentlad.com\/systemd-timers-oncalendar-(cron)-format-explained\" target=\"_blank\" rel=\"noopener\">Systemd timers onCalendar (cron) format explained<\/a><\/li>\n<li><a href=\"https:\/\/www.freedesktop.org\/software\/systemd\/man\/systemd.time.html\" target=\"_blank\" rel=\"noopener\">systemd.time<\/a><\/li>\n<\/ul>\n<pre class=\"lang:default decode:true\">OnCalendar=* *-*-* *:*:*<\/pre>\n<ul>\n<li>* \u661f\u671f\u5e7e<br \/>\n<span style=\"color: #333333; font-style: normal; font-weight: 400;\">Wed<br \/>\n<\/span><span style=\"color: #333333; font-style: normal; font-weight: 400;\">Mon,Sun<br \/>\n<\/span>Mon..Thu,Sat,Sun<\/li>\n<li>*-*-* \u897f\u5143\u5e74\u6708\u65e5<br \/>\n*-1-1<\/li>\n<li>*:*:* \u6642\u5206\u79d2<br \/>\n00:00:00<\/li>\n<\/ul>\n<p>--<\/p>\n<h2>\u4e0d\u80fd\u6bcf\u79d2\u57f7\u884c<\/h2>\n<p>\u56e0\u70ba\u4f7f\u7528 Docker \u7684 PHP \u4f86\u57f7\u884c\uff0c\u4e00\u958b\u59cb\u4ee5\u70ba\u662f\u5bb9\u5668\u57f7\u884c\u6548\u80fd\u554f\u984c\uff0c\u7d50\u679c\u770b\u4e86 Log \u624d\u767c\u73fe\u662f\u7cfb\u7d71\u672c\u8eab\u7684\u554f\u984c\u3002<\/p>\n<p>\u6bcf 2 \u79d2\u57f7\u884c\u4e00\u6b21\u662f\u6b63\u5e38\u7684<\/p>\n<pre class=\"lang:default decode:true\">Jul 07 01:48:01 hoyo systemd[1]: 0.service: Start request repeated too quickly.\r\nJul 07 01:48:01 hoyo systemd[1]: 0.service: Failed with result 'start-limit-hit'.\r\nJul 07 01:48:01 hoyo systemd[1]: Failed to start Hello World Service.<\/pre>\n<p>--<\/p>\n<h2>\u6642\u9593\u5230\u4e86\u4e0d\u57f7\u884c\uff01\uff1f<\/h2>\n<ul>\n<li><a class=\"question-hyperlink\" href=\"https:\/\/stackoverflow.com\/questions\/41142337\/systemd-timer-not-executing-shell-script\" target=\"_blank\" rel=\"noopener\">Systemd Timer not executing shell script<\/a><\/li>\n<\/ul>\n<p>\u5148\u6aa2\u67e5 timer \u662f\u5426\u6709\u5728\u57f7\u884c\u6e05\u55ae\u5167<\/p>\n<pre class=\"lang:default decode:true\"># systemctl list-timers --all<\/pre>\n<p>\u5982\u679c\u6709\u7684\u8a71\u53ef\u662f\u6c92\u6709 NEXT \u6642\u9593\uff0c\u90a3\u6709\u53ef\u80fd\u662f\u7a0b\u5e8f\u9084\u5728\u57f7\u884c\uff0c\u4f7f\u7528 ps -ax \u6aa2\u67e5\u4e00\u4e0b<\/p>\n<pre class=\"lang:default decode:true\">  26400 ?        I      0:00 [kworker\/u8:0-events_unbound]\r\n  26452 ?        I      0:00 [kworker\/0:0-events]\r\n  26453 ?        R      0:00 [kworker\/u8:3-events_unbound]\r\n  26528 ?        I      0:01 [kworker\/3:1-events]\r\n  26653 ?        I      0:00 [kworker\/u8:2]\r\n  26724 ?        I      0:00 [kworker\/3:2-ata_sff]\r\n  26791 ?        I      0:00 [kworker\/u8:1]\r\n  26849 ?        I      0:00 [kworker\/3:0-ata_sff]\r\n  26884 ?        Ss     0:00 \/bin\/bash \/opt\/day.sh\r\n  26886 ?        Sl     0:00 docker exec bsb php \/var\/www\/html\/index.php shell day\r\n  26905 ?        Ss     0:00 php \/var\/www\/html\/index.php shell day\r\n  26912 pts\/1    R+     0:00 ps -ax<\/pre>\n<p>\u5c07\u57f7\u884c\u4e2d\u7684\u7a0b\u5e8f\u522a\u9664\u5f8c\u91cd\u65b0\u7b49\u5f85\u57f7\u884c\u61c9\u8a72\u5c31\u6703\u6b63\u5e38\u4e86<\/p>\n<p>--<\/p>\n<h2>Failed to parse calendar specification, ignoring:<\/h2>\n<ul>\n<li><a href=\"http:\/\/\u95ee\u65e0\u6cd5\u542f\u52a8Systemd\u8ba1\u65f6\u5668\" target=\"_blank\" rel=\"noopener\">\u95ee\u65e0\u6cd5\u542f\u52a8Systemd\u8ba1\u65f6\u5668<\/a><\/li>\n<\/ul>\n<pre class=\"lang:default decode:true\">systemd-analyze calendar \"* *-*-* *:*:00\"\r\nFailed to parse calendar specification '* *-*-* *:*:00': Invalid argument<\/pre>\n<p>\u4f7f\u7528 systemd-analyze calendar \u6e2c\u8a66\u6642\u9593\u683c\u5f0f\uff0c\u6700\u5f8c\u78ba\u8a8d\u5982\u679c\u8981\u6bcf\u5206\u9418\u57f7\u884c\u76f4\u63a5\u7c21\u5316\u6210 *:*:00 \u5373\u53ef<\/p>\n<p>--<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p class=\"pvc_stats all \" data-element-id=\"10424\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> &nbsp;3,247&nbsp;total views, &nbsp;2&nbsp;views today<\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>-- \u53c3\u8003\u8cc7\u6e90 Systemd...<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p class=\"pvc_stats all \" data-element-id=\"10424\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> &nbsp;3,247&nbsp;total views, &nbsp;2&nbsp;views today<\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[31],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/10424"}],"collection":[{"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10424"}],"version-history":[{"count":12,"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/10424\/revisions"}],"predecessor-version":[{"id":13152,"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/10424\/revisions\/13152"}],"wp:attachment":[{"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hoyo.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}