需要帮助来理解手语行为

Question

/etc/logrotate.conf显示rotate logs "weekly"

/etc/logrotate。d/ssh说

/var/log/ssh.log {
compress
dateext
maxage 120
rotate 99
missingok
notifempty
size +4096k
create 640 root p4admin
sharedscripts
postrotate
/etc/init.d/syslog reload
endscript
}

/var/lib/logrotate。"/var/log/SSH .log"2013-1-4

但上述数据与我们在文件中看到的数据不匹配…

-rw-r----- 1 root user 201M Jan 4 09:47 /var/log/ssh.log
-rw-r----- 1 root user 65M Oct 19 04:02 /var/log/ssh.log-20121019.gz
-rw-r----- 1 root user 64M Nov 28 04:02 /var/log/ssh.log-20121128.gz
-rw-r----- 1 root user 63M Oct 23 04:02 /var/log/ssh.log-20121023.gz

你知道我错过了什么吗?

Answer 1

• weekly在你的/etc/logrotate.conf意味着你所有的日志文件将每周轮换，如果这个选项没有被本地覆盖。

  手册说:

  Each configuration file can set global options (local definitions over-
  ride global ones, and later  definitions  override  earlier  ones)  and
  specify  logfiles  to  rotate.
  

• 如果使用size选项，logrotate将忽略这里所述的daily, weekly, monthly和yearly选项

每天执行

• logrotate以检查大小等标准。

  同时轮换日志。

  手册说:

  Normally, logrotate is run as a daily cron job.  It will not  modify  a
  log  multiple  times  in  one  day unless the criterion for that log is
  based on the log's size and logrotate is being run multiple times  each
  day, or unless the -f or --force option is used.
  

因此，logrotate每天检查日志的大小，并在必要时执行旋转。