Log counts and files are complressed using logrotate config file. You can find the logrotate files for the services under the directory /etc/logrotate.d
Ex - Logrotate for http is under the location, /etc/logrotate.d/httpd
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/var/log/httpd/*.log
{ weekly rotate 52
compress
missingok
notifempty
sharedscripts
postrotate /bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2> /dev/null || true endscript }
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Done
Ex - Logrotate for http is under the location, /etc/logrotate.d/httpd
--------------------------
/var/log/httpd/*.log
{ weekly rotate 52
compress
missingok
notifempty
sharedscripts
postrotate /bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2> /dev/null || true endscript }
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- weekly : Log files are rotated if the current weekday is less then the weekday of the last rotation or if more then a week has passed since the last rotation.
- rotate 52 : Log files are rotated 52 times before being removed or mailed to the address specified in a mail directive. If count is 0, old versions are removed rather then rotated.
- compress : Old versions of log files are compressed with gzip to save disk space.
- missingok : If the log file is missing, go on to the next one without issuing an error message.
- notifempty : Do not rotate the log if it is empty
- sharedscripts : Normally, prerotate and postrotate scripts are run for each log which is rotated, meaning that a single script may be run multiple times for log file entries which match multiple files. If sharedscript is specified, the scripts are only run once, no matter how many logs match the wildcarded pattern. However, if none of the logs in the pattern require rotating, the scripts will not be run at all.
- postrotate
- /bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2> /dev/null || true
- endscript : The lines between postrotate and endscript (both of which must appear on lines by themselves) are executed after the log file is rotated. These directives may only appear inside a log file definition.
Done