Memory leak
Memory that a long-running process keeps allocated but no longer uses, so its memory use grows with uptime. In garbage-collected languages a leak is usually an object that stays reachable by mistake, such as a cache that only grows or a listener nobody removes. The process slows as it swaps or collects garbage, and the operating system kills it when memory runs out.
Runtimes
In Quorum#
The Memory leak Incident hits an App Server whose runtime keeps its processes between requests (every runtime but Apache mod_php and PHP-FPM). It gains 2.5% of its RAM each second; past its RAM it swaps and slows, and at 125% of RAM the kernel kills it and it restarts cold. Restart the server to free the memory, or ship the Fix memory leak task (15 Dev Hours), which stops leaks until the next Feature ships.