If you have log files enabled, you can ask our system to rotate them from the Site Information page for your site in our member interface.
When you ask to rotate your logs, our system waits for an opportune moment and then does it. Your access_log file, for instance, becomes access_log.old, and a new access_log is created. It may not be right away, but it usually takes just a few minutes. If there was already an access_log.old, that file gets a name based on the timestamp of the log file, such as access_log.20160828.
Before August 2016, non-transparent compression options were available. Now, the filesystem already incorporates transparent LZ4 compression, which does a great job on log files while keeping them easy to access and analyze. If you previously had compression enabled, it will continue to work, but you can deactivate it on the Site Information panel.