Common configuration parameters for log rotation (logrotate)

Recently just to rearrange the log server, just need to reconfigure the system logrotate, so simply write some basic configuration parameters of Logrotate, for easy access.

Logrotate The main configuration parameter file is/etc/logrotate.conf, and/etc/logrotate.d/directory in the write configuration is for the usual management convenience written inside, it will eventually be/etc/ Logrotate.conf, which is then executed by wtmp. So if it is some common configuration can be written in the/etc/logrotate.conf file, but if it is not recommended to make the default/etc/logrotate.conf file too big changes, as for the configuration syntax in logrotate.conf is very simple:

The Jedi path of the log file name (if multiple spaces are separated) {parameters to be configured}

The most important thing about the Logrotate feature is its configuration parameters, which are listed here for some common parameters:

Parameters	Description
Compress	Enable compression, refers to the old log after rotation, where the default is gzip compressed
Compressoptions	Compress in gzip-9 mode
Uncompresscmd	Unzip the log, default is Gunzip
Daily	Rotation options per day
Dateext	The rotation log file is appended with the timestamp of the previous dash and YYYYMMDD format
Delaycompress	Defer the previous log file compression until the next rotation
Ifempty	Even if the log file is empty, it also turns
Mail	Send the post-rotation file to the specified e-mail address
Copytruncate	for log files that are still open, back up and truncate the current log , and start the rotation
Mailfirst/maillast	Send a carousel/Post history file to a message (default)
Monthly	One-month round-trip
Nocompress	If compression is enabled in logrotate.conf, this is done without compressing the parameters
Nomail	Do not send mail to any address
Ifempty	If the log time and space is not round
Olddir Directory	The post-rotation log file is placed in the specified directory and must be in the same file system as the current log file
Postrotate/endscript	After the rotation of the command, two keywords must be in a separate row, the operation used in 2 is equivalent to grouping "{}", note the use of external directives with absolute path
Prerotate/endscript	The order before the rotation, ibid.
Rotate Count	The rotation is retained up to the previous data several times, the excess will be deleted or the message received, set to 0 does not save
Size size	When the log grows to a specified size, it starts rotation, and it does not consider
Start Count	The rotation file name is based on this number. For example, specify 0 o'clock, the original log file rotation of the backup file with. 0 as the extension, if you specify 9, you skip 0-8 directly from. 9. The number of times that is specified for rotate is then resumed.
Weekly	If the current day of the week is less than the last day of rotation, or after one weeks, the rotation usually takes place on the first days of the week, and if the logrotate is not running daily, it will be replaced on the first occasion.
Yearly	Journal rotation If the current year differs from the year of the last rotation
Create Mode owner Group	After the Postrotate script executes, the log file is created immediately using the log filename of the new rotation. MODE Specifies the permissions of the log file (0660, etc.) Owner Specifies the master of the log file Group specifies the genus of log files
Extension ext	The log file can use the specified ext extension after rotation. If compression is used, the extension of the compressed file is usually added after ext, usually. gz. For example, to convert the Mylog.foo wheel to mylog.1.foo.gz instead of mylog.foo.1.gz.

The common parameters of basic logrotate are these, if you want to know more parameter use method can refer to man 8 logrotate. Of course, now a lot of software has its own logrotate, such as Apache Rotatelogs, and so on, mostly based on the system's logrotate to implement the rotation of the journal, the specific use of the kind to be based on the actual situation, However, the logrotate in the system can almost satisfy most of the scenes

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Common configuration parameters for log rotation (logrotate)