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/dev/null is an ACID compliant database

(jyu.dev)
529 points swills | 3 comments | 23 Oct 25 21:28 UTC | HN request time: 0.001s | source
1. jefftk ◴[24 Oct 25 00:31 UTC] No.45689295[source]▶
"The system transitions from one valid state to another" is clearly false: the system only has a single state.
replies(1): >>45689928 #
2. mpyne ◴[24 Oct 25 02:03 UTC] No.45689928[source]▶
One of the first state machine you'll ever learn about in undergrad permits transitions from a state back to itself, so I don't see this as a barrier.
replies(1): >>45690050 #
3. eru ◴[24 Oct 25 02:22 UTC] No.45690050[source]▶
And you can implement /dev/null with multiple states, as long as you make them all behave the same way.