Which log file are we talking about here?
No, it seems the world hasn't had this issue before except us! You let me down Google!
I have some machines which do not have the issue, and have been running all cycles since they were born into existence. I literally cannot replicate the issue it seems, but its happening on around 30 or so of our servers, and rebooting them once a week isn't something I want to make a habit of.