Maturity of SwayDB

[polarker]

Hi simerplaha, first thank you for the awesome work. We would really like to add a pure Java-based embedded key-value DB into our blockchain system, SwayDB pops up as the best candidate.

I read your comment on gitter in May, and you said that it's not production ready. Is this situation has changed since May ? Or, maybe it is mature enough for blockchain ?

[simerplaha]

Hi @polarker, thank you.

SwayDB is most likely already production ready but to prove that, it needs these following tasks implemented.

• Future proofing file formats - Needs unit test-cases to ensure that any future file format changes maintain backward compatibility.
• Reduce write amplification - Mainly for performance. This just needs integration testing and tuning.
• Last simulation stress test - 2 out of 3 are implemented.
• Partial key search
• Minor Stream iterator bug
• Code coverage

These tasks are less than 3-4 months worth of work and then we can be confident about production readiness.

Every other task is related to performance improvement, order-preserving encryption and more data-structures like graph, pub/sub etc which can implemented incrementally.

Honestly since covid I just ran out of savings. Hopefully I will figure out the finances and continue.

Alephium sounds awesome! BlockFlow's sharded parallel blockchains with concurrent transactions ... Amazing! I just read the paper and it sounds like a game changer.

[polarker]

Hi @simerplaha, thank you for the very detailed reply and the hard work. I am obsessed with performance as well :)

We happen to be looking for community developers. Would you be interested to help us in part time to improve your current finances. Some of the tasks we believe you could help a lot:

1. optimize the storage and IO of current full node based on rocksdb
2. integrate SwayDB into our full node
3. fight with GC pause ;)

Looking forward to hearing back from you !

[simerplaha]

OMG!! That would be awesome!! I would love to help out :)

Yep performance and fighting GC pauses is always fun :)

I'm looking at IO right now.

[polarker]

Exciting to hear that !

I will PM you on Twitter to get your Email, then we could have a short call to meet the other core devs and discuss the contract details etc.

[simerplaha]

Sounds good. Looking forward to it :)