WIP FIL+ Storage Market (OLD)

Creator

Nicola

Created

May 31, 2023 2:04 PM

🧑‍🚀

The current doc is at 🎯Direct data onboarding: impacts & work outline

Problem

Main problem: Expensive Gas costs

A Storage Provider that wants to store client data must publish their deals on-chain via PublishStorageDeal. The Storage Market actor which governs these interactions is unfortunately very gas expensive.

PublishStorageDeal accounts for 40% of the total costs. As a bug, deal activation costs are currently paid by cron, but this must change.

Other problem: Max duration is up to 5 years

Secondary problems: The built-in storage market actor acts as the gatekeeper, designing new cheaper storage markets is not possible to do today (see 🕊️Free CommD: Unconstrained data applications on Filecoin for more details).

Goal

Create a cheaper and much simpler storage market, that has a similar flow (but not backward compatible) with the previous storage market.

FIL+ Storage Market

Step 1: FIL+ Direct

Goal:

Make SPs directly create FIL+ allocations bypassing the storage market.
Allow new storage market contracts to be built to offer storage markets (to build step 2).

Strategy

Enable Free CommD as described in 🎯Direct data onboarding: impacts & work outline

Limitations:

SPs cannot receive payments
No explicit strategy for deal flow

High level design: 🧩Deal onboarding actor interactions

Step 2: FIL+ Storage Market

This is a wrapper around FIL+ Direct that can handle payments to SPs.

WORK

It seems that we can’t do PublishStorageDeal and store the info that will go on the claim later on, so we either do PublishStorageDeal at the time of ProveCommit or we must change the registry to have “preclaims”

General intuition

VerifiedRegistry.Claims are treated storage of most of the deal information, the remaining deal information (e.g. payment) will be in the FIL+StorageMarketActor
A deal is “activated” when an allocation is claimed.

FIL+ Storage Market Actor

PublishStorageDeal: it receives datacap allocation
ProveCommitAndActivateDeals: The FIL+ Storage Market wraps Miner.ProveCommit and VerifiedRegistry.ClaimAllocation
Read functions for reading deal information partially from its own state and partially from VerifiedRegistry.Claims

Handling of payments TODO

PublishStorageDeal

Relevant docs

🕊️Free CommD: Unconstrained data applications on Filecoin
🧩Deal onboarding actor interactions
🎯Direct data onboarding: impacts & work outline
💻Data termination penalty—design sketch

Previous Work

(wip) Gas-cheap Storage Market (deprecated)