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@jennijuju jennijuju released this 23 Mar 21:13
v1.15.1-rc2
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Learn about vigilant mode.

This is the second release candidate of the next highly recommended feature release v1.15.1. This feature release introduces Index Provider, GraphSync v2, and many other latest functionalities, improvements and bug fixes.
More importantly, node operator can now enable the FVM(experimental) to sync mainnet!!

Highlights

🔥🔥🔥 FVM (Experimental) 🔥🔥🔥

  • feat: fvm: FVM integration (filecoin-project/lotus#8332)
    The lotus team is excited to announce the launch of experimental non-programmable FVM on mainnet. By enabling LOTUS_USE_FVM_EXPERIMENTAL=1 envvar, the lotus daemon will be running the WASM-compiled built-in actors that is compatible with the existing chain(Network v15 OhSnap). If you are trying it out and having any questions or feedbacks, please leave a comment here!

🌟🌟🌟 Index Provider (Production Ready!) 🌟🌟🌟

More and more useful data is being stored on Filecoin via deals made by clients to Storage Providers. The goal is that this content is discoverable when people need them. To achieve that goal, one of the projects the Bedrock team is working on is building an Indexer Ecosystem, a project that's focus on content addressing on Filecoin, then potentially have interoperability with IPFS in the future and eventually serve the retrieval market. The Indexer Ecosystem high level architecture overview diagram can be found here and a detailed write up about can be found here.

That being said, with this release, lotus Storage Providers can easily become an Index Provider and serve the Indexer Content Addressing System. Index Providers generate advertisements from the deals made by a storage provider and announces the data to the indexer nodes for further processing:

  • To learn more about what is an Index Provider and how to be an Index Provider, read it here in lotus docuementation.
  • An one-off migration is needed in order for a Storage Provider to become an Index Provider and announce the proper formatted index. It's highly recommended for all Index Provider to do a force bulk initialization to enable index announcement on all existing deals.
    • Note that the Initialization places IO workload on your storage system. SP should set a proper concurrency based on your hardware or can stop/start initialization at their wish/convenience as proving deadlines approach and elapse, to avoid IOPS starvation or competition with window PoSt.
  • After the first one-time migration, being an Index Provider barely puts any extra usage on SP's market system.
    • You can find the testing result by SPX fellows here.

We recommend all Storage Providers that are serving deals in the Filecoin network to become a Index Provider, make the data you are storing discoverable for the retrieval market and retrieval clients!

❗️❗️❗️ Dag Migration For New CAR index format in DagStore ❗️❗️❗️

The index provider leverages the latest CARv2 indexing format MultihashIndexSorted, which stores the multihash code as well as the digest of all CIDs in a CAR file. Thus, all Storage Providers SHOULD perform an one-off DAG mirgation to regenerate DagStore CARv2 indices. You have to do it to become an index provider, failing to do so may also impact your future deal making.
Follow the instruction here to perform the migration.

New Features

Improvements

Bug Fixes

Dependency Updates

Others

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