Commit Graph

120 Commits

Author SHA1 Message Date
Aarsh Shah
d7076778e2
integrate DAG store and CARv2 in deal-making (#6671)
This commit removes badger from the deal-making processes, and
moves to a new architecture with the dagstore as the cental
component on the miner-side, and CARv2s on the client-side.

Every deal that has been handed off to the sealing subsystem becomes
a shard in the dagstore. Shards are mounted via the LotusMount, which
teaches the dagstore how to load the related piece when serving
retrievals.

When the miner starts the Lotus for the first time with this patch,
we will perform a one-time migration of all active deals into the
dagstore. This is a lightweight process, and it consists simply
of registering the shards in the dagstore.

Shards are backed by the unsealed copy of the piece. This is currently
a CARv1. However, the dagstore keeps CARv2 indices for all pieces, so
when it's time to acquire a shard to serve a retrieval, the unsealed
CARv1 is joined with its index (safeguarded by the dagstore), to form
a read-only blockstore, thus taking the place of the monolithic
badger.

Data transfers have been adjusted to interface directly with CARv2 files.
On inbound transfers (client retrievals, miner storage deals), we stream
the received data into a CARv2 ReadWrite blockstore. On outbound transfers
(client storage deals, miner retrievals), we serve the data off a CARv2
ReadOnly blockstore.

Client-side imports are managed by the refactored *imports.Manager
component (when not using IPFS integration). Just like it before, we use
the go-filestore library to avoid duplicating the data from the original
file in the resulting UnixFS DAG (concretely the leaves). However, the
target of those imports are what we call "ref-CARv2s": CARv2 files placed
under the `$LOTUS_PATH/imports` directory, containing the intermediate
nodes in full, and the leaves as positional references to the original file
on disk.

Client-side retrievals are placed into CARv2 files in the location:
`$LOTUS_PATH/retrievals`.

A new set of `Dagstore*` JSON-RPC operations and `lotus-miner dagstore`
subcommands have been introduced on the miner-side to inspect and manage
the dagstore.

Despite moving to a CARv2-backed system, the IPFS integration has been
respected, and it continues to be possible to make storage deals with data
held in an IPFS node, and to perform retrievals directly into an IPFS node.

NOTE: because the "staging" and "client" Badger blockstores are no longer
used, existing imports on the client will be rendered useless. On startup,
Lotus will enumerate all imports and print WARN statements on the log for
each import that needs to be reimported. These log lines contain these
messages:

- import lacks carv2 path; import will not work; please reimport
- import has missing/broken carv2; please reimport

At the end, we will print a "sanity check completed" message indicating
the count of imports found, and how many were deemed broken.

Co-authored-by: Aarsh Shah <aarshkshah1992@gmail.com>
Co-authored-by: Dirk McCormick <dirkmdev@gmail.com>

Co-authored-by: Raúl Kripalani <raul@protocol.ai>
Co-authored-by: Dirk McCormick <dirkmdev@gmail.com>
2021-08-16 23:34:32 +01:00
ZenGround0
b914e95f34 revert pricelist by version to pricelist by epoch 2021-08-11 09:49:23 -04:00
Raúl Kripalani
07f40b9488 fix docs and nits. 2021-07-28 20:03:25 +01:00
Anton Evangelatov
de4a847078 add RuntimeSubsystems API method; use it in lotus-miner info 2021-07-28 16:02:05 +03:00
ZenGround0
09adc4d5e2 make docsgen changes 2021-07-22 09:49:47 -04:00
Anton Evangelatov
d89ddb9315 resolve conflicts 2021-07-12 11:34:37 +02:00
Łukasz Magiera
2dc27d6ab4 itests: Fix deal provider collateral flakiness 2021-07-07 19:41:46 +02:00
Anton Evangelatov
6720463799 resolve merge conflicts 2021-06-22 11:28:23 +02:00
Raúl Kripalani
c0a8a9f5b5 make gen. 2021-06-21 20:52:59 +01:00
Anton Evangelatov
9f3ec82cc1 initial resolution of conflicts 2021-06-08 13:01:22 +02:00
Steven Allen
4aecb83932 chore: update docs for new libp2p version 2021-06-07 12:17:05 -07:00
Anton Evangelatov
ed634bc3a4 rebuild docs 2021-06-04 17:06:55 +02:00
Łukasz Magiera
1e4456138e Merge master into feat/nv13 2021-05-27 12:28:20 +02:00
Dirk McCormick
885564fe24 Revert "chore: update go-libp2p"
This reverts commit f7fbaef361.
2021-05-20 11:22:19 -06:00
Steven Allen
f7fbaef361 chore: update go-libp2p
From 0.12.0 to 0.14.0.

Headline for lotus: faster yamux.
2021-05-10 19:41:57 -07:00
Łukasz Magiera
c4137a438d Merge commit 'f1ded63d608e1b191d79c780b8065f8cff367c98' into feat/nv12-1.11 2021-04-27 08:22:55 +02:00
Łukasz Magiera
4436c184ed Fix v0/v1 API versions 2021-04-16 00:20:13 +02:00
Łukasz Magiera
c9866da688 Merge remote-tracking branch 'origin/master' into feat/v1-api 2021-04-02 13:15:33 +02:00
Łukasz Magiera
1a5c4d70f4 Merge remote-tracking branch 'origin/master' into feat/v1-api 2021-04-01 15:33:37 +02:00
Łukasz Magiera
d198cf456e make docsgen work with versioned api 2021-03-23 17:20:56 +01:00