Reason:
- produce and seed snapshots earlier on chain tip. reduce depnedency on
"good peers with history" at p2p-network.
Some networks have no much archive peers, also ConsensusLayer clients
are not-good(not-incentivised) at serving history.
- avoiding having too much files:
more files(shards) - means "more metadata", "more lookups for
non-indexed queries", "more dictionaries", "more bittorrent
connections", ...
less files - means small files will be removed after merge (no peers for
this files).
ToDo:
[x] Recent 500K - merge up to 100K
[x] Older than 500K - merge up to 500K
[x] Start seeding 100k files
[x] Stop seeding 100k files after merge (right before delete)
In next PR:
[] Old version of Erigon must be able download recent hashes. To achieve
it - at first start erigon will download preverified hashes .toml from
s3 - if it's newer that what we have (build-in) - use it.
This request implements the insertion of Bor ephemeral transactions into
snapshot indexes.
I does this by taking the block hash from the header index and passing
it to the transaction indexer to add an additional index entry per block
into the transaction hash -> block index.
The passed entries are currently contained in an in memory array which
is (32 * number of blocks / sprint size) bytes.
In addition to the functional code there is also an update to the
`dump_test.go` so that it runs `DumpBlocks` to exercise the indexing
code. To facilitate this the `InsertChain` method in `mock_sentry` has
been modified so that it can process >128 blocks.
The code in this request also includes additional bor/consensus code
with the following functions:
`CalculateSprint`
`CalculateSprintCount`
The first function is a modification of the code in erigon-lib so that
the sprints are numerically rather than lexically ordered. This code
should be migrated to erigon-lib and should have its sprint set
calculated once from its underlying map rather than this process being
repeated every calculation.
---------
Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro-2.local>
Co-authored-by: ledgerwatch <akhounov@gmail.com>
Co-authored-by: Enrique Jose Avila Asapche <eavilaasapche@gmail.com>
Co-authored-by: Giulio <giulio.rebuffo@gmail.com>
- breaks dependency from staged_sync to package with block_reader
implementation
- breaks dependency from snap_sync to package with block_reader
implementation
- breaks dependency from mining to txpool implementation
