Log rotate is important to keep the SD cards on Raspberry pi from corruption, disable any logging when possible (after debugging)

log-rotate

Logfile RoATING file operations using UNIX logrotate utility.
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+ Rotate the log file when file size reaches a specific size
+ Continue to write the log information to the newly created file after rotating the old log file
+ Compress the rotated log files
+ Specify compression option for the rotated log files
+ Rotate the old log files with the date in the filename
+ Execute custom shell scripts immediately after log rotation
+ Remove older rotated log files


Logrotate Configuration files
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Following are the key files that you should be aware of for logrotate to work properly.

    + /usr/sbin/logrotate – The logrotate command itself.

    + /etc/cron.daily/logrotate – This shell script executes the logrotate command everyday.
    
    + /etc/logrotate.conf – Log rotation configuration for all the log files are specified in this file.
    
    
    
 PIHOLE RECOMMENDED
 ==============================
 /var/log/pihole.log {
	# su #
	daily
	copytruncate
	rotate 5
	compress
	delaycompress
	notifempty
	nomail
}