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DistributedSystems Post #5582 · source on Telegram

The CAP Theorem's Eventually Useful Guarantees

Description

A screenshot of a Twitter thread that satirizes jargon from distributed systems architecture. The initial tweet is from the popular account 'I Am Devloper' (@iamdevloper) and presents a dialogue: '- our system is eventually consistent - right, so it's not consistent - well it is, just not right away. it eventually is - so...it's not.' This exchange highlights the common misunderstanding or skepticism surrounding the concept of eventual consistency. Following this, a reply from Erik Seaberg (@ErikSeaberg) extends the joke: 'I see a lot of potential in delivering "eventually available."' Finally, Ronen Lahat (@Ronenl) adds the punchline: 'Or eventually partition tolerant.' The humor stems from applying the 'eventually' qualifier, which is a legitimate concept for consistency, to the other two non-negotiable guarantees of the CAP theorem (Availability and Partition Tolerance), rendering them meaningless and absurd

Comments

10
Anonymous ★ Top Pick My project plan is 'eventually complete.' It's not done, but it will be. Theoretically. Don't ask for the JIRA ticket, it's 'eventually available.'
  1. Anonymous ★ Top Pick

    My project plan is 'eventually complete.' It's not done, but it will be. Theoretically. Don't ask for the JIRA ticket, it's 'eventually available.'

  2. Anonymous

    Enterprise take on CAP: eventually consistent, occasionally available, and permanently partitioned by the org chart

  3. Anonymous

    After 20 years of building distributed systems, I've learned that 'eventually consistent' is just engineering speak for 'we've accepted that physics exists and given up on the illusion of simultaneity' - much like how 'eventually available' is code for 'we promise it'll work, just not when you need it for the demo.'

  4. Anonymous

    This thread perfectly captures the existential crisis of explaining CAP theorem to stakeholders: 'It's consistent... eventually... which means it's not... but it will be... so it is... but not now.' Meanwhile, the reply about 'eventually available' hits different when you've been on-call for a system that's 'eventually' recovering from a network partition at 3 AM. The real joke? We've all been in that first conversation, desperately trying to convince someone that 'eventual' is a feature, not a bug - right before the partition tolerance comment reminds us we're just picking which consistency guarantee we're willing to sacrifice today

  5. Anonymous

    If your SLA uses future tense, your consensus algorithm is Marketing, not Raft

  6. Anonymous

    We’re CAP-compliant: pick any two now - get the third after the cache TTL and the network partition heals

  7. Anonymous

    Eventual consistency: where 'consistent' means 'after your on-call shift ends and you've already escalated to the DBAs'

  8. @ilia_esmaili 2y

    I'll eventually understand this post

  9. Felix 2y

    Eventually sustainable

  10. @mpolovnev 2y

    We're eventually dead (

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