On: Ask HN: Anyone know any funny programming jokes?

[fsflover]

There are only two hard problems in distributed systems:

2. Exactly-once delivery

1. Guaranteed order of messages

2. Exactly-once delivery

[valzam → fsflover]

Reminds me of

There are only 2 hard things about programming:

- Cache invalidation

- Naming things

- Off-by-one errors

[skellystudios → valzam]

Cache invalidation isn’t hard, but it used to be and now we can’t get people to think otherwise.

[rvense → skellystudios]

I heard that the two main problems in computer science is that we have only one joke and it's not very funny.

[jbn → skellystudios]

cache invalidation is not hard indeed, but people always forget about it (so caches aren't caches aanymore, they become stale copies of things...). People tend to forget that a cache has to have a fixed size and an eviction policy.