Use logrotate to automatically cut the website logs of the pagoda

By default , Of the pagoda WEB When the software logs , Logs are not stored in different files by date , Long time logs are recorded in a file , It is very inconvenient to consult and manage .

One 、 install logrotate

Most of the Linux The system usually comes with logrotate, If it happens that your system doesn't come with , Sure stay github Download source code Build and install .

Or try to install directly with the command , for example ：

• Red hat system (Red Hat)：yum install logrotate or dnf install logrotate
• ubuntu (Ubuntu)：sudo apt-get install logrotate or apt install logrotate

Two 、 principle

Actually “ cutting ” The two words are not correct , Let's briefly talk about the working principle of personal understanding .

1.logrotate Execution time , Files that meet the conditions set in the configuration will be processed .

2. Then rename the log file , And create a new log file .

3. Perform other operations , Such as ： Compressed files .

3、 ... and 、 To configure

Create and edit a profile

sudo vim /etc/logrotate.d/btweblogs

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Configure the content

/www/wwwlogs/*.log  {
    #  Time interval between ：daily= Every day /weekly= Once a week /monthly= monthly /yearly= Every year, 
    daily
    #  Number of copies to be retained , Old logs exceeding this number will be deleted automatically 
    rotate 14
    #  Ignore mistakes , Such as ： file does not exist 
    missingok
    #  Rename file using date format 
    dateext
    #  Compress the separated files 
    compress
    #  Do not compress the files separated this time 
    delaycompress
    #  Ignore empty files （ That is, do not separate empty files ）
    notifempty
    #  Execute the script only once after multiple files are separated 
    sharedscripts
    #  Script executed after file separation 
    postrotate
        #  notice Nginx and Apache routine overloading  
        # Nginx
	[ -e /www/server/nginx/logs/nginx.pid ] && kill -USR1 `cat /www/server/nginx/logs/nginx.pid`
        # Apache
	[ -e /www/server/apache/logs/httpd.pid ] && kill -USR1 `cat /www/server/apache/logs/httpd.pid`
    endscript
}

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Four 、 end

logrotate In addition to the ability to separate compressed files , You can also send the separated files to the specified mailbox by mail , For specific methods, please refer to logrotate Manuals .

The pagoda itself also has a log cutting function , If there is no need for compression , You can use the functions of the pagoda .

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