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7d9e1d8607
* Code cosmetics * Aristo+Kvt: Fix api wrappers why: Api setup killed the backend descriptor when backend mapping was disabled. * Aristo: Implement masked profiling entries why: Database backend should be listed but not counted in tally * CoreDb: Simplify backend() methods why: DBMS backend access Was provided very early and over engineered. Now there are only two backend machines, one for `Kvt` and the other one for an `Mpt` available only via new API. * CoreDb: Code cleanup regarding descriptor types * CoreDb: Refactor/redefine `persistent()` methods why: There were `persistent()` methods for any type of caching storage facilities `Kvt`, `Mpt`, `Phk`, and `Acc`. Now there is only a single `persistent()` method storing all facilities in tandem (similar to how transactions work.) For non shared `Kvt` tables, there is now an extra storage method `saveOffSite()`. * CoreDb lingo update: `trie` becomes `column` why: Notion of a `trie` is pretty much hidden by the new `CoreDb` api. Revealed are sort of database columns for accounts an storage data, any of which have an internal state represented by a Keccack hash. So a `trie` or `MPT` becomes a `column` and a `rootHash` becomes a column state. * Aristo: rename backend filed `filters` => `journal` * Update full sync logging details: + Disable eth handler noise while syncing + Log journal depth (if available) * Fix copyright year * Fix cruft and unwanted imports
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.