Logrotate 不压缩

Question

我们设置了 syslogd，将来自几个不同服务器的所有日志发送到一台服务器中，全部发送到一个名为

/var/log/centrallogs

的文件夹中。

我们为此目录使用以下日志轮换配置：

/etc/logrotate.d/centrallogs

：

/var/log/centrallogs/*log {
        rotate 5
        compress
        missingok
        notifempty
        sharedscripts
        postrotate
        /etc/init.d/httpd restart > /dev/null 2>/dev/null || true
        endscript
}

在测试中（使用

logrotate -d centrallogs

）LR 似乎没有尝试进行任何旋转。

这是输出（注意，我已经重命名了站点，但这是我所做的唯一更改）：

rotating pattern: /var/log/centrallogs/*log  1048576 bytes (5 rotations)
empty log files are not rotated, old logs are removed
considering log /var/log/centrallogs/site1_access.log
  log needs rotating
considering log /var/log/centrallogs/site1_error.log
  log does not need rotating
considering log /var/log/centrallogs/site2_access.log
  log needs rotating
considering log /var/log/centrallogs/site2_error.log
  log needs rotating
considering log /var/log/centrallogs/site3_access.log
  log needs rotating
considering log /var/log/centrallogs/site3_error.log
  log needs rotating
rotating log /var/log/centrallogs/site1_access.log, log->rotateCount is 5
dateext suffix '-20150908'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
renaming /var/log/centrallogs/site1_access.log.5.gz to /var/log/centrallogs/site1_access.log.6.gz (rotatecount 5, logstart 1, i 5), 
renaming /var/log/centrallogs/site1_access.log.4.gz to /var/log/centrallogs/site1_access.log.5.gz (rotatecount 5, logstart 1, i 4), 
renaming /var/log/centrallogs/site1_access.log.3.gz to /var/log/centrallogs/site1_access.log.4.gz (rotatecount 5, logstart 1, i 3), 
renaming /var/log/centrallogs/site1_access.log.2.gz to /var/log/centrallogs/site1_access.log.3.gz (rotatecount 5, logstart 1, i 2), 
renaming /var/log/centrallogs/site1_access.log.1.gz to /var/log/centrallogs/site1_access.log.2.gz (rotatecount 5, logstart 1, i 1), 
renaming /var/log/centrallogs/site1_access.log.0.gz to /var/log/centrallogs/site1_access.log.1.gz (rotatecount 5, logstart 1, i 0), 
rotating log /var/log/centrallogs/site2_access.log, log->rotateCount is 5
dateext suffix '-20150908'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
renaming /var/log/centrallogs/site2_access.log.5.gz to /var/log/centrallogs/site2_access.log.6.gz (rotatecount 5, logstart 1, i 5), 
renaming /var/log/centrallogs/site2_access.log.4.gz to /var/log/centrallogs/site2_access.log.5.gz (rotatecount 5, logstart 1, i 4), 
renaming /var/log/centrallogs/site2_access.log.3.gz to /var/log/centrallogs/site2_access.log.4.gz (rotatecount 5, logstart 1, i 3), 
renaming /var/log/centrallogs/site2_access.log.2.gz to /var/log/centrallogs/site2_access.log.3.gz (rotatecount 5, logstart 1, i 2), 
renaming /var/log/centrallogs/site2_access.log.1.gz to /var/log/centrallogs/site2_access.log.2.gz (rotatecount 5, logstart 1, i 1), 
renaming /var/log/centrallogs/site2_access.log.0.gz to /var/log/centrallogs/site2_access.log.1.gz (rotatecount 5, logstart 1, i 0), 
rotating log /var/log/centrallogs/site2_error.log, log->rotateCount is 5
dateext suffix '-20150908'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
renaming /var/log/centrallogs/site2_error.log.5.gz to /var/log/centrallogs/site2_error.log.6.gz (rotatecount 5, logstart 1, i 5), 
renaming /var/log/centrallogs/site2_error.log.4.gz to /var/log/centrallogs/site2_error.log.5.gz (rotatecount 5, logstart 1, i 4), 
renaming /var/log/centrallogs/site2_error.log.3.gz to /var/log/centrallogs/site2_error.log.4.gz (rotatecount 5, logstart 1, i 3), 
renaming /var/log/centrallogs/site2_error.log.2.gz to /var/log/centrallogs/site2_error.log.3.gz (rotatecount 5, logstart 1, i 2), 
renaming /var/log/centrallogs/site2_error.log.1.gz to /var/log/centrallogs/site2_error.log.2.gz (rotatecount 5, logstart 1, i 1), 
renaming /var/log/centrallogs/site2_error.log.0.gz to /var/log/centrallogs/site2_error.log.1.gz (rotatecount 5, logstart 1, i 0), 
rotating log /var/log/centrallogs/site3_access.log, log->rotateCount is 5
dateext suffix '-20150908'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
renaming /var/log/centrallogs/site3_access.log.5.gz to /var/log/centrallogs/site3_access.log.6.gz (rotatecount 5, logstart 1, i 5), 
renaming /var/log/centrallogs/site3_access.log.4.gz to /var/log/centrallogs/site3_access.log.5.gz (rotatecount 5, logstart 1, i 4), 
renaming /var/log/centrallogs/site3_access.log.3.gz to /var/log/centrallogs/site3_access.log.4.gz (rotatecount 5, logstart 1, i 3), 
renaming /var/log/centrallogs/site3_access.log.2.gz to /var/log/centrallogs/site3_access.log.3.gz (rotatecount 5, logstart 1, i 2), 
renaming /var/log/centrallogs/site3_access.log.1.gz to /var/log/centrallogs/site3_access.log.2.gz (rotatecount 5, logstart 1, i 1), 
renaming /var/log/centrallogs/site3_access.log.0.gz to /var/log/centrallogs/site3_access.log.1.gz (rotatecount 5, logstart 1, i 0), 
rotating log /var/log/centrallogs/site3_error.log, log->rotateCount is 5
dateext suffix '-20150908'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
renaming /var/log/centrallogs/site3_error.log.5.gz to /var/log/centrallogs/site3_error.log.6.gz (rotatecount 5, logstart 1, i 5), 
renaming /var/log/centrallogs/site3_error.log.4.gz to /var/log/centrallogs/site3_error.log.5.gz (rotatecount 5, logstart 1, i 4), 
renaming /var/log/centrallogs/site3_error.log.3.gz to /var/log/centrallogs/site3_error.log.4.gz (rotatecount 5, logstart 1, i 3), 
renaming /var/log/centrallogs/site3_error.log.2.gz to /var/log/centrallogs/site3_error.log.3.gz (rotatecount 5, logstart 1, i 2), 
renaming /var/log/centrallogs/site3_error.log.1.gz to /var/log/centrallogs/site3_error.log.2.gz (rotatecount 5, logstart 1, i 1), 
renaming /var/log/centrallogs/site3_error.log.0.gz to /var/log/centrallogs/site3_error.log.1.gz (rotatecount 5, logstart 1, i 0), 
renaming /var/log/centrallogs/site1_access.log to /var/log/centrallogs/site1_access.log.1
renaming /var/log/centrallogs/site2_access.log to /var/log/centrallogs/site2_access.log.1
renaming /var/log/centrallogs/site2_error.log to /var/log/centrallogs/site2_error.log.1
renaming /var/log/centrallogs/site3_access.log to /var/log/centrallogs/site3_access.log.1
renaming /var/log/centrallogs/site3_error.log to /var/log/centrallogs/site3_error.log.1
running postrotate script
running script with arg /var/log/centrallogs/*log : "
    /etc/init.d/httpd restart > /dev/null 2>/dev/null || true
"
compressing log with: /bin/gzip
removing old log /var/log/centrallogs/site1_access.log.6.gz
error: error opening /var/log/centrallogs/site1_access.log.6.gz: No such file or directory

我也尝试过使用delaycompress，因为有些人已经成功了。

LR 可以很好地旋转日志，只是根本不对它们执行压缩。

查看该输出中唯一听起来有错误的部分：

error: error opening /var/log/centrallogs/site1_access.log.6.gz: No such file or directory

我认为 LR 可能会崩溃，因为它没有要删除的 .gz 文件，所以我创建了所需的日志文件的每个变体，它运行了一夜，清除了 gz 文件，进行了旋转，但仍然没有压缩。

这让我有点生气，任何帮助将不胜感激。

Answer 1

根据日志，看起来它正在运行 /bin/gzip，并且通常 gzip 会压缩所有列出的文件 - 跳过任何丢失的文件 - 没有任何问题。请注意，如果结果较大，gzip 不会强制压缩文件，这在非常小的文件上很容易发生。 “error: error [..]”消息可能不是来自 gzip，它往往会在错误前面加上“gzip: :”前缀。

检查文件大小，看看它们是否很小（或者更具体地说，gzip 是否认为压缩它们会使它们变大）。

notifempty 的类似评论。

延迟压缩仅意味着您可以拥有.1 .2 .3 .4.gz .5.gz 等。使压缩工作并不是必需的，实际上它会跳过压缩最近的几个文件。您可以同时使用两者，或者只是压缩，而不是单独使用延迟压缩。 奇怪的是你没有频率/大小{每天|每周|文件中的大小 ___ }。我从来没有尝试过在没有它们的情况下使用它们。

Answer 2

delaycompress

设施仅在下一个循环周期中压缩先前的日志文件。正如 man logrotate

 中所解释的

delaycompress
      Postpone compression of the previous log file to the next rotation cycle.  
      This only has effect when used in combination with compress.  

Answer 3

-f

强制旋转，

-d

调试模式仅显示更多信息，

-v

详细模式

Answer 4

delaycompress

压缩 Apache 日志文件，而它在 RHEL6 (logrotate-3.7.8-26.el6) 下工作，并且完全正确相同的配置。

似乎 logrotate 在

delaycompress

没有显式

compress

的情况下改变了其行为：在 3.7 中

compress

被隐式假设，在 3.14 中

delaycompress

没有效果（因为它始终在手册页中指定） 。在

compress

之前添加

delaycompress

解决了我在 3.14 版本上的问题。