Just got this error after 60Hours of running

MINERZ: Running for 59:12:29 on naw-eth.hiveon.net

MINERZ: Miner must be restarted, large log file size, please wait...


the miner was hashing okay and no other issue beside the log file size

is this by design?  should I expect this every 60 hours?
How can I avoid it
Thank you