Cron突然每15分钟调用一次脚本

debugcn 发表于 Dev

文森特

在Debian服务器上，我有一个crontab条目，该条目应该每天04:21 AM调用脚本。

就是这样，直到今天..但是现在脚本每15分钟被调用一次，没有任何原因！

我已经几个月没有更换crontab了！

这是crontab行：

21 4 * * * /usr/bin/wget -O /dev/null http://www.domain.tld/tasks/hebdomadaire.php &> /dev/null

这是Apache日志（cat access.log | grep“ hebdomadaire”）：

SERVER_IP - - [28/Mar/2016:04:21:01 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [29/Mar/2016:04:21:01 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [30/Mar/2016:04:21:01 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:04:21:01 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:04:36:02 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:04:51:04 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:05:06:07 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:05:21:11 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:05:36:16 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:05:51:22 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:06:06:30 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:06:21:38 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:06:36:47 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:06:51:57 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"
SERVER_IP - - [31/Mar/2016:07:07:07 +0000] "GET /tasks/hebdomadaire.php HTTP/1.1" 200 454 "-" "Wget/1.13.4 (linux-gnu)"

怎么可能？

文森特

wget的默认行为（在手册中记录）是在默认超时900秒（也就是15分钟）后重新启动。

添加--timeout=0解决了这里的问题。

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