29After scaling workers the app dies with too many open files. How do you raise the limit so it actually sticks?▼mediumNewPhonePeSwiggyInfosys◆ premiumEveryone knows ulimit -n. The interview question is which process inherits which value, why limits.conf did nothing for your service, and how you size the ceiling honestly.Open full answer →
59A service starts refusing connections with 'too many open files' after about six hours, every time. Find it.▼mediumNewUberDatadogCloudflare◆ premiumRaising the limit buys hours and proves nothing. The six-hour periodicity is the diagnosis: something is opening descriptors on a code path that never closes them.Open full answer →
