5 ms·

Concurrency You forgot 2) Cache invalidation and 3)

• mrep 9y ago
  Haha, you are correct, but there are some other hard problems that I now remember after some quick googling since i forgot all the related jokes :) There are only two hard problems in distributed systems: 2. Exactly-once delivery 1. Guaranteed order of messages 2. Exactly-once delivery There's two hard problems in computer science: we only have one joke and it's not funny. Source: https://martinfowler.com/bliki/TwoHardThings.html https://martinfowler.com/bliki/TwoHardThings.html
• tracker1 9y ago
  The two most difficult things in software development. * naming things * cache invalidation * off by one errors
  • taneq 9y ago
    It's always worth having it stated in the canonical form. :)
    • evanmoran 9y ago
      The fifth hardest thing is figuring out the canonical form :)
• pdpi 9y ago
  I’d risk saying we’re all intensely aware how hard Cache invalidation is, right now
  • endymi0n 9y ago
    well, we can only speculate...