4feaa2cfab
* Aristo: Provide key-value list signature calculator detail: Simple wrappers around `Aristo` core functionality * Update new API for `CoreDb` details: + Renamed new API functions `contains()` => `hasKey()` or `hasPath()` which disables the `in` operator on non-boolean `contains()` functions + The functions `get()` and `fetch()` always return a not-found error if there is no item, available. The new functions `getOrEmpty()` and `mergeOrEmpty()` return an an empty `Blob` if there is no such key found. * Rewrite `core_apps.nim` using new API from `CoreDb` * Use `Aristo` functionality for calculating Merkle signatures details: For debugging, the `VerifyAristoForMerkleRootCalc` can be set so that `Aristo` results will be verified against the legacy versions. * Provide general interface for Merkle signing key-value tables details: Export `Aristo` wrappers * Activate `CoreDb` tests why: Now, API seems to be stable enough for general tests. * Update `toHex()` usage why: Byteutils' `toHex()` is superior to `toSeq.mapIt(it.toHex(2)).join` * Split `aristo_transcode` => `aristo_serialise` + `aristo_blobify` why: + Different modules for different purposes + `aristo_serialise`: RLP encoding/decoding + `aristo_blobify`: Aristo database encoding/decoding * Compacted representation of small nodes' links instead of Keccak hashes why: Ethereum MPTs use Keccak hashes as node links if the size of an RLP encoded node is at least 32 bytes. Otherwise, the RLP encoded node value is used as a pseudo node link (rather than a hash.) Such a node is nor stored on key-value database. Rather the RLP encoded node value is stored instead of a lode link in a parent node instead. Only for the root hash, the top level node is always referred to by the hash. This feature needed an abstraction of the `HashKey` object which is now either a hash or a blob of length at most 31 bytes. This leaves two ways of representing an empty/void `HashKey` type, either as an empty blob of zero length, or the hash of an empty blob. * Update `CoreDb` interface (mainly reducing logger noise) * Fix copyright years (to make `Lint` happy) |
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|---|---|---|
| .. | ||
| worker | ||
| README.txt | ||
| constants.nim | ||
| range_desc.nim | ||
| worker.nim | ||
| worker_desc.nim | ||
README.txt
Test & debugging scenario with nimbus-eth1 client/server
========================================================
Start snap/1 server
-------------------
# Enter nimbus directory for snap/1 protocol server.
cd server
# Tell nimbus to stop full sync after 2 mio blocks.
echo 2000000 > full-limit.txt
# Tell nimbus to use this predefined key ID
echo 123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0 > full-id.key
./build/nimbus \
--tcp-port:30319 --nat=None --sync-mode=full \
--protocols=snap --discovery=none \
--net-key=./full-id.key \
--sync-ctrl-file=./full-limit.txt \
--log-level:TRACE
# Wait for several hours until enough blocks have been downloaded so that
# snap sync data are available. The full 2 mio blocks are available if the
# log ticker shows something like
#
# INF 2023-03-17 [..] Sync statistics (suspended) topics="full-tick" [..] persistent=#2000080 [..]
#
# where the persistent=#2000080 field might vary
Start snap/1 client
-------------------
# Note: When the snap/1 server has enough blocks, the client can be started.
# Enter nimbus directory for snap/1 protocol server
cd client
# Tell nimbus to use this pivot block number. This number must be smaller
# than the 2000000 written into the file full-limit.txt above.
echo 600000 > snap/snap-update.txt
# Tell nimbus to stop somewhere after 1000000 blocks have been downloaded
# with full sync follow up after snap sync has completed (2nd line of
# external setuip file.)
echo 1000000 >> snap/snap-update.txt
# Tell nimbus to use this hard coded peer enode.
echo enode://192d7e7a302bd4ff27f48d7852621e0d3cb863a6dd67dd44e0314a25a3aa866837f0d2460b4444dc66e7b7a2cd56a2de1c31b2a2ba4e23549bf3ba3b0c4f2eb5@127.0.0.1:30319 > snap/full-servers.txt
./build/nimbus \
--tcp-port:30102 --nat=None --sync-mode=snap \
--protocols=none --discovery=none \
--static-peers-file=./full-servers.txt \
--sync-ctrl-file=./snap-update.txt \
--log-level:TRACE
Modifications while the programs are syncing
--------------------------------------------
# Increasing the number in the files full/full-limit.txt or
# snap/snap-update.txt will be recognised while running. Decreasing
# or removing will be ignored.