At times the arerror.log file can get to an unmanageable size. I think it would be nice if you could setup a 'max size' for the log, and if that size was exceeded then the current file would increment, and you would end up with a history of the logs
where the highest number is always the oldest, and the lowest number is always the newest with the 'current' version of the log being the arerror.log file itself. In the interest of not losing any arerror.log at all, I don't think there would need to be a 'maximum history' setting, just simply increasing the counts till you run out of room
This capability already exists for the arjavaplugin.log file.