Using a private deployment of LN 7.0.66 for DESDL performance testing, the esp.log file for one day reached a size of 16.38 GB.
rw-r r- 1 hpcc hpcc 17590058557 Dec 13 23:28 esp_main.2018_12_13.log
A file this size is hard to work with. Many tools cannot open a file this big.
Add a configuration option to set a maximum file size, and roll over the log files when the size is reached. The default could be unbounded, as it is now, but it would allow users to control the sizes of files with which they need to work.