[FR] - Pending ledger-state dependencies

[rdlrt]

External otherwise.

Background:

< Please correct if I misrepresent any information below > During initial implementation , few of the protocol information that were not present in blocks were lumped together in ledger-state - but this was asked not to be used , being a debug-only interface. Absence of this information left holes in various tools built around in Cardano ecosystem, which meant folks had to work with this increasingly humongous ledger-state dumps, or let go of some information.

Recently, efforts are being made to make these available outside of ledger-state , with stake-snapshot already being tackled.

Feature Request:

Note: The request is NOT for exposing stuff via CLI, but for any 'supported' means that is lightweight enough (eg: via mini protocol)

This issue aims to simply list any other information that might still only be available within ledger-state itself. Depending on plans, there can perhaps be further individual issues created to track each individual item.

• [ ] Querying individual Stake Snapshots for delegationMap, stakeMap and poolParams for stakeGo and stakeMark. (WIP tracked via #4982)
• [ ] Proposed Protocol Param updates
• [ ] Treasury
• [ ] Epoch Fees
• [ ] Reserves
• [ ] Hit Rate estimates (apparent pool performance)

Describe alternatives you've considered

Dumping ledger-state (with/without JSON), but that was never sustainable, not supported.

Additional context / screenshots

Follow discussion in #3691

Various Tools this would be beneficial to:

• Ogmios (and thus, kupo)
• CNCLI
• Carp
• Scrolls
• Yaci
• DBSync (currently already parses ledger-state, which ends up using humongous amounts of memory. Could possibly reduce it's memory footprint by ~70%)
• Marconi(?) - not sure if they plan to be a complete chain indexing solution
• All tools/solutions that use above behind the scenes

[github-actions[bot]]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 120 days.

[KtorZ]

https://github.com/input-output-hk/cardano-node/issues/4984#issuecomment-1507815579

No. Be nice bot.