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无法使用 logrotate 发送日志

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无法使用 logrotate 发送日志

使用 logrotate 每日轮换日志。想要通过电子邮件发送日志。轮换工作如预期般进行，但日志未通过电子邮件发送。我能够使用 mail() 从 PHP 生成电子邮件，但我不确定是否需要为 logrotate 设置其他服务。我也不确定 logrotate 邮件错误会报告在哪里。

谢谢。

详细信息：在 Ubuntu 14.04.4（Digital Ocean LAMP）上，使用 /etc/logrotate.d/apache2（配置）的 logrotate：

 /var/www/html/logs/my.log {
  daily
  missingok
  rotate 360
  compress
  delaycompress
  notifempty
  create
  sharedscripts
  mail [email protected]
  mailfirst
 }

答案1

确保您可以发送邮件

您的系统可以发送电子邮件吗？您可能希望安装并配置 Postfix。可能要转发到relayhost中标识的另一台主机/etc/postfix/main.cf。

您可以用 进行测试。echo test | mail -s test [email protected]

/usr/bin/mail是 logrotate 默认使用的命令，因此如果测试一切正常，logrotate应该也工作。

logrotate手册页摘录：

   -m, --mail <command>
          Tells logrotate which command to use when mailing logs. This command should accept two arguments: 1) the subject of the message, and 2) the recipient. The command must then read a message on standard input and mail it
          to the recipient. The default mail command is /usr/bin/mail -s.

关于 /usr/bin/mail

/usr/bin/mail是一个符号链接（以 Ubuntu 16.04 为例）：

# ls -l /etc/alternatives/mail
lrwxrwxrwx 1 root root 18 May 26 09:37 /etc/alternatives/mail -> /usr/bin/bsd-mailx
# dpkg -S /usr/bin/bsd-mailx
bsd-mailx: /usr/bin/bsd-mailx
# ls -l /usr/bin/mail
lrwxrwxrwx 1 root root 22 May 26 09:37 /usr/bin/mail -> /etc/alternatives/mail
# ls -l /etc/alternatives/mail
lrwxrwxrwx 1 root root 18 May 26 09:37 /etc/alternatives/mail -> /usr/bin/bsd-mailx
# dpkg -S /usr/bin/bsd-mailx
bsd-mailx: /usr/bin/bsd-mailx

在此系统上，你可以mail使用以下命令安装

# apt-get install bsd-mailx

我检查了一下，这个包确实存在于 Ubuntu 14.04 中所以我觉得你做得不错。我认为你也可以使用这个mailutils包作为替代方案。

检查您的邮件日志 ( /var/log/mail.log)。如果邮件发往 Postfix，您应该能够准确地看到邮件中发生了什么。

logrotate如果上述不是问题，你可以进行调试

您可以手动运行 logrotate，甚至可以应用-v详细模式和-f强制模式。您应该可以看到发生了什么。

# logrotate -v -f mysql-server 
reading config file mysql-server

Handling 1 logs

rotating pattern: /var/log/mysql.log /var/log/mysql/*log  forced from command line (7 rotations)
empty log files are rotated, old logs are removed
considering log /var/log/mysql.log
  log /var/log/mysql.log does not exist -- skipping
considering log /var/log/mysql/error.log
  log needs rotating
rotating log /var/log/mysql/error.log, log->rotateCount is 7
dateext suffix '-20160924'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
renaming /var/log/mysql/error.log.7.gz to /var/log/mysql/error.log.8.gz (rotatecount 7, logstart 1, i 7), 
renaming /var/log/mysql/error.log.6.gz to /var/log/mysql/error.log.7.gz (rotatecount 7, logstart 1, i 6), 
renaming /var/log/mysql/error.log.5.gz to /var/log/mysql/error.log.6.gz (rotatecount 7, logstart 1, i 5), 
renaming /var/log/mysql/error.log.4.gz to /var/log/mysql/error.log.5.gz (rotatecount 7, logstart 1, i 4), 
renaming /var/log/mysql/error.log.3.gz to /var/log/mysql/error.log.4.gz (rotatecount 7, logstart 1, i 3), 
renaming /var/log/mysql/error.log.2.gz to /var/log/mysql/error.log.3.gz (rotatecount 7, logstart 1, i 2), 
renaming /var/log/mysql/error.log.1.gz to /var/log/mysql/error.log.2.gz (rotatecount 7, logstart 1, i 1), 
renaming /var/log/mysql/error.log.0.gz to /var/log/mysql/error.log.1.gz (rotatecount 7, logstart 1, i 0), 
old log /var/log/mysql/error.log.0.gz does not exist
renaming /var/log/mysql/error.log to /var/log/mysql/error.log.1
creating new /var/log/mysql/error.log mode = 0640 uid = 107 gid = 4
running postrotate script
compressing log with: /bin/gzip
removing old log /var/log/mysql/error.log.8.gz

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