This PR adds the `NextBaseFeePerGas` to `Block` and `EffectiveTip` to `Transaction` to make it easier for clients to compute fee history themselves via graphql queries.
* rpc, node: refactor request validation and add jwt validation
* node, rpc: fix error message, ignore engine api in RegisterAPIs
* node: make authenticated port configurable
* eth/catalyst: enable unauthenticated version of engine api
* node: rework obtainjwtsecret (backport later)
* cmd/geth: added auth port flag
* node: happy lint, happy life
* node: refactor authenticated api
Modifies the authentication mechanism to use default values
* node: trim spaces and newline away from secret
Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
This change makes use of the new code generator rlp/rlpgen to improve the
performance of RLP encoding for Header and StateAccount. It also speeds up
encoding of ReceiptForStorage using the new rlp.EncoderBuffer API.
The change is much less transparent than I wanted it to be, because Header and
StateAccount now have an EncodeRLP method defined with pointer receiver. It
used to be possible to encode non-pointer values of these types, but the new
method prevents that and attempting to encode unadressable values (even if
part of another value) will return an error. The error can be surprising and may
pop up in places that previously didn't expect any errors.
To make things work, I also needed to update all code paths (mostly in unit tests)
that lead to encoding of non-pointer values, and pass a pointer instead.
Benchmark results:
name old time/op new time/op delta
EncodeRLP/legacy-header-8 328ns ± 0% 237ns ± 1% -27.63% (p=0.000 n=8+8)
EncodeRLP/london-header-8 353ns ± 0% 247ns ± 1% -30.06% (p=0.000 n=8+8)
EncodeRLP/receipt-for-storage-8 237ns ± 0% 123ns ± 0% -47.86% (p=0.000 n=8+7)
EncodeRLP/receipt-full-8 297ns ± 0% 301ns ± 1% +1.39% (p=0.000 n=8+8)
name old speed new speed delta
EncodeRLP/legacy-header-8 1.66GB/s ± 0% 2.29GB/s ± 1% +38.19% (p=0.000 n=8+8)
EncodeRLP/london-header-8 1.55GB/s ± 0% 2.22GB/s ± 1% +42.99% (p=0.000 n=8+8)
EncodeRLP/receipt-for-storage-8 38.0MB/s ± 0% 64.8MB/s ± 0% +70.48% (p=0.000 n=8+7)
EncodeRLP/receipt-full-8 910MB/s ± 0% 897MB/s ± 1% -1.37% (p=0.000 n=8+8)
name old alloc/op new alloc/op delta
EncodeRLP/legacy-header-8 0.00B 0.00B ~ (all equal)
EncodeRLP/london-header-8 0.00B 0.00B ~ (all equal)
EncodeRLP/receipt-for-storage-8 64.0B ± 0% 0.0B -100.00% (p=0.000 n=8+8)
EncodeRLP/receipt-full-8 320B ± 0% 320B ± 0% ~ (all equal)
* eth/tracers: add initial native prestate tracer
* fix balance hex
* handle prestate for tx from and to
* drop created contract from prestate
* fix sender balance
* use switch instead
Co-authored-by: Martin Holst Swende <martin@swende.se>
* minor fix
* lookup create2 account
* mv code around a bit
* check stackLen for create2
* fix transfer tx for js prestate tracer
* fix create2 addr
* track extcodehash in js prestate tracer
Co-authored-by: Martin Holst Swende <martin@swende.se>
* eth, miner: remove duplicated code
* eth/catalyst: remove unneeded code
* miner: keep update pending state even the Merge is happened
* eth, miner: rebase
* miner: fix tests
* eth, miner: address comments from marius
* miner: use empty zero randomness for pending blocks after the merge
* eth/catalyst: gofmt
* miner: add warning log for state recovery
* miner: ignore uncles for post-merge blocks
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
* eth/catalyst: evict old payloads, type PayloadID
* eth/catalyst: added tracing info to engine api
* eth/catalyst: add test for create payload timestamps
* catalyst: better logs
* eth/catalyst: computePayloadId return style
* catalyst: add queue for payloads
* eth/catalyst: nitpicks
Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
* core: implement eip-4399 random opcode
* core: make vmconfig threadsafe
* core: miner: pass vmConfig by value not reference
* all: enable 4399 by Rules
* core: remove diff (f)
* tests: set proper difficulty (f)
* smaller diff (f)
* eth/catalyst: nit
* core: make RANDOM a pointer which is only set post-merge
* cmd/evm/internal/t8ntool: fix t8n tracing of 4399
* tests: set difficulty
* cmd/evm/internal/t8ntool: check that baserules are london before applying the merge chainrules
This PR reduces the amount of work we do when answering header queries, e.g. when a peer
is syncing from us.
For some items, e.g block bodies, when we read the rlp-data from database, we plug it
directly into the response package. We didn't do that for headers, but instead read
headers-rlp, decode to types.Header, and re-encode to rlp. This PR changes that to keep it
in RLP-form as much as possible. When a node is syncing from us, it typically requests 192
contiguous headers. On master it has the following effect:
- For headers not in ancient: 2 db lookups. One for translating hash->number (even though
the request is by number), and another for reading by hash (this latter one is sometimes
cached).
- For headers in ancient: 1 file lookup/syscall for translating hash->number (even though
the request is by number), and another for reading the header itself. After this, it
also performes a hashing of the header, to ensure that the hash is what it expected. In
this PR, I instead move the logic for "give me a sequence of blocks" into the lower
layers, where the database can determine how and what to read from leveldb and/or
ancients.
There are basically four types of requests; three of them are improved this way. The
fourth, by hash going backwards, is more tricky to optimize. However, since we know that
the gap is 0, we can look up by the parentHash, and stlil shave off all the number->hash
lookups.
The gapped collection can be optimized similarly, as a follow-up, at least in three out of
four cases.
Co-authored-by: Felix Lange <fjl@twurst.com>
* eth/tracers: Add support for REVERT in evmdis_tracer
* evm/tracers: Fix evmdis_tracer to use SELFDESTRUCT instead of SUICIDE
* eth/tracers: Regenerate tracer library
* core/vm: Move interpreter.ReadOnly check into the opcode implementations
Also remove the same check from the interpreter inner loop.
* core/vm: Remove obsolete operation.writes flag
* core/vm: Capture fault states in logger
Co-authored-by: Martin Holst Swende <martin@swende.se>
* core/vm: Remove panic added for testing
Co-authored-by: Martin Holst Swende <martin@swende.se>
* all: work for eth1/2 transtition
* consensus/beacon, eth: change beacon difficulty to 0
* eth: updates
* all: add terminalBlockDifficulty config, fix rebasing issues
* eth: implemented merge interop spec
* internal/ethapi: update to v1.0.0.alpha.2
This commit updates the code to the new spec, moving payloadId into
it's own object. It also fixes an issue with finalizing an empty blockhash.
It also properly sets the basefee
* all: sync polishes, other fixes + refactors
* core, eth: correct semantics for LeavePoW, EnterPoS
* core: fixed rebasing artifacts
* core: light: performance improvements
* core: use keyed field (f)
* core: eth: fix compilation issues + tests
* eth/catalyst: dbetter error codes
* all: move Merger to consensus/, remove reliance on it in bc
* all: renamed EnterPoS and LeavePoW to ReachTDD and FinalizePoS
* core: make mergelogs a function
* core: use InsertChain instead of InsertBlock
* les: drop merger from lightchain object
* consensus: add merger
* core: recoverAncestors in catalyst mode
* core: fix nitpick
* all: removed merger from beacon, use TTD, nitpicks
* consensus: eth: add docstring, removed unnecessary code duplication
* consensus/beacon: better comment
* all: easy to fix nitpicks by karalabe
* consensus/beacon: verify known headers to be sure
* core: comments
* core: eth: don't drop peers who advertise blocks, nitpicks
* core: never add beacon blocks to the future queue
* core: fixed nitpicks
* consensus/beacon: simplify IsTTDReached check
* consensus/beacon: correct IsTTDReached check
Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
* all: mv loggers to eth/tracers
* core/vm: minor
* eth/tracers: tmp comment out testStoreCapture
* eth/tracers: uncomment and fix logger test
* eth/tracers: simplify test
* core/vm: re-add license
* core/vm: minor
* rename LogConfig to Config
Some benchmarks in eth/filters were not good: they weren't reproducible, relying on geth chaindata to be present.
Another one was rejected because the receipt was lacking a backing transcation.
The p2p simulation benchmark had a lot of the warnings below, due to the framework calling both
Stop() and Close(). Apparently, the simulated adapter is the only implementation which has a Close(),
and there is no need to call both Stop and Close on it.
This doesn't fix all go-critic warnings, just the most serious ones.
Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>
* eth,rpc: allow for flag configured timeouts for eth_call
* lint: account for package-local import order
* cr: rename `rpc.calltimeout` to `rpc.evmtimeout`
This removes some code:
- The clique engine calculated the snapshot twice when verifying headers/blocks.
- The method GetBlockHashesFromHash in Header/Block/Lightchain was only used by tests. It
is now removed from the API.
- The method GetTdByHash internally looked up the number before calling GetTd(hash, num).
In many cases, callers already had the number, and used this method just because it has a
shorter name. I have removed the method to make the API surface smaller.
This fixes a data race on worker.current by moving the call to StopPrefetcher
into the main loop.
The commit also contains fixes for two other races in unit tests of unrelated packages.
Fixes#23681
After the fix I get the address 0x6d6d02e83c4ced98204e20126acf27e9d87b8af2 for the
tx mentioned in the ticket, which agrees with etherscan.
The test did not synchronize with per-case goroutines, and thus didn't notice
that some tests were just hanging. This change adds missing synchronization
and fixes the broken tests.
This PR fixes an issue in traceChain, where the statedb Commit operation was performed asynchronously with dereference-operations agains the underlying trie.Database instance. Due to how the reference counting works within the trie database (where parent count is recursively updated when new parents are added), doing dereferencing in the middle of Commit can cause the refcount to become wrong, leading to an inconsistent state.
This was fixed by doing Commit/Deref from the same routine.
* core/types: rm extranous check in test
* core/rawdb: add lightweight types for block logs
* core/rawdb,eth: use lightweight accessor for log filtering
* core/rawdb: add bench for decoding into rlpLogs
This PR implements a new debug method, which I've talked briefly about to some other client developers. It allows the caller to obtain the intermediate state roots for a block (which might be either a canon block or a 'bad' block).
This change introduces 2 new optional methods; `enter()` and `exit()` for js tracers, and makes `step()` optiona. The two new methods are invoked when entering and exiting a call frame (but not invoked for the outermost scope, which has it's own methods). Currently these are the data fields passed to each of them:
enter: type (opcode), from, to, input, gas, value
exit: output, gasUsed, error
The PR also comes with a re-write of the callTracer. As a backup we keep the previous tracing script under the name `callTracerLegacy`. Behaviour of both tracers are equivalent for the most part, although there are some small differences (improvements), where the new tracer is more correct / has more information.
This adds a check to verify that a sender-account does not have code, which means that the codehash is either `emptyCodeHash` _OR_ not present. The latter occurs IFF the sender did not previously exist, a situation which can only occur with zero cost gasprices.
* internal/ethapi/api: use hexutil.uint for blockCount parameter instead of int for feeHistory
* return hex value for oldestBlock instead of number
* return uint64 from oracle.resolveBlockRange
* eth/gasprice: fixed test
Co-authored-by: Zsolt Felfoldi <zsfelfoldi@gmail.com>
When processing a transaction with London fork rules, EIP-1559 mandates
checking that the sender must have sufficient balance to cover gas * gasFeeCap.
In the EIP's pseudocode, this check happens after the value transferred by the
transaction has already been deducted. However, in go-ethereum, the balance
has not yet been updated when the check happens, and therefore needs to be
added explicitly.
Co-authored-by: Martin Holst Swende <martin@swende.se>
Some tests take quite some time during exit, which I think causes
some appveyor fails like this:
https://ci.appveyor.com/project/ethereum/go-ethereum/builds/39511210/job/xhom84eg2e4uulq3
One of the things that seem to take time during exit is waiting
(up to 100ms) for the syncbloom to close. This PR changes it to use
a channel, instead of looping with a 100ms wait.
This also includes some unrelated changes improving the reliability of
eth/fetcher tests, which fail a lot because they are time-dependent.
* core,eth/tracers: make isPrecompiled dependent on HF
* eth/tracers: use keys when constructing chain config struct
* eth/tracers: dont initialize activePrecompiles with random value
This change increases the cache size from 64 to 256 Mb for block bodies.
Benchmarks have shown this to be one bottleneck when trying to achieve
higher download speeds.
The commit also includes a minor optimization for header inserts in package
core: previously, the presence of headers in the database was checked for
every header before writing it. With the change, if one header fails the
presence check, all subsequent headers are also assumed to be missing.
This is an improvement because in practice, the headers are almost always
missing during sync.
* accounts/abi/bind: fix bounded contracts and sim backend for 1559
* accounts/abi/bind, ethclient: don't rely on chain config for gas prices
* all: enable London for all internal tests
* les: get receipt type info in les tests
* les: fix weird test
Co-authored-by: Martin Holst Swende <martin@swende.se>
* internal/ethapi: add baseFee to RPCMarshalHeader
* internal/ethapi: add FeeCap, Tip and correct GasPrice to EIP-1559 RPCTransaction results
* core,eth,les,internal: add support for tip estimation in gas price oracle
* internal/ethapi,eth/gasprice: don't suggest tip larger than fee cap
* core/types,internal: use correct eip1559 terminology for json marshalling
* eth, internal/ethapi: fix rebase problems
* internal/ethapi: fix rpc name of basefee
* internal/ethapi: address review concerns
* core, eth, internal, les: simplify gasprice oracle (#25)
* core, eth, internal, les: simplify gasprice oracle
* eth/gasprice: fix typo
* internal/ethapi: minor tweak in tx args
* internal/ethapi: calculate basefee for pending block
* internal/ethapi: fix panic
* internal/ethapi, eth/tracers: simplify txargs ToMessage
* internal/ethapi: remove unused param
* core, eth, internal: fix regressions wrt effective gas price in the evm
* eth/gasprice: drop weird debug println
* internal/jsre/deps: hack in 1559 gas conversions into embedded web3
* internal/jsre/deps: hack basFee to decimal conversion
* internal/ethapi: init feecap and tipcap for legacy txs too
* eth, graphql, internal, les: fix gas price suggestion on all combos
* internal/jsre/deps: handle decimal tipcap and feecap
* eth, internal: minor review fixes
* graphql, internal: export max fee cap RPC endpoint
* internal/ethapi: fix crash in transaction_args
* internal/ethapi: minor refactor to make the code safer
Co-authored-by: Ryan Schneider <ryanleeschneider@gmail.com>
Co-authored-by: lightclient@protonmail.com <lightclient@protonmail.com>
Co-authored-by: gary rong <garyrong0905@gmail.com>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
There are two transaction parameter structures defined in
the codebase, although for different purposes. But most of
the parameters are shared. So it's nice to reduce the code
duplication by merging them together.
Co-authored-by: Martin Holst Swende <martin@swende.se>
This removes the error log message that says
Ethereum peer removal failed ... err="peer not registered"
The error happened because removePeer was called multiple
times: once to disconnect the peer, and another time when the
handler exited. With this change, removePeer now has the sole
purpose of disconnecting the peer. Unregistering happens exactly
once, when the handler exits.
* core/types, miner: create TxWithMinerFee wrapper, add EIP-1559 support to TransactionsByMinerFeeAndNonce
miner: set base fee when creating a new header, handle gas limit, log miner fees
* all: rename to NewTransactionsByPriceAndNonce
* core/types, miner: rename to NewTransactionsByPriceAndNonce + EffectiveTip
miner: activate 1559 for testGenerateBlockAndImport tests
* core,miner: revert naming to TransactionsByPriceAndTime
* core/types/transaction: update effective tip calculation logic
* miner: update aleut to london
* core/types/transaction_test: use correct signer for 1559 txs + add back sender check
* miner/worker: calculate gas target from gas limit
* core, miner: fix block gas limits for 1559
Co-authored-by: Ansgar Dietrichs <adietrichs@gmail.com>
Co-authored-by: lightclient@protonmail.com <lightclient@protonmail.com>
This change extracts the peer QoS tracking logic from eth/downloader, moving
it into the new package p2p/msgrate. The job of msgrate.Tracker is determining
suitable timeout values and request sizes per peer.
The snap sync scheduler now uses msgrate.Tracker instead of the hard-coded 15s
timeout. This should make the sync work better on network links with high latency.
This is the initial implementation of EIP-1559 in packages core/types and core.
Mining, RPC, etc. will be added in subsequent commits.
Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: lightclient@protonmail.com <lightclient@protonmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
This removes auto-configuration of the snap.*.ethdisco.net DNS discovery tree.
Since measurements have shown that > 75% of nodes in all.*.ethdisco.net support
snap, we have decided to retire the dedicated index for snap and just use the eth
tree instead.
The dial iterators of eth and snap now use the same DNS tree in the default configuration,
so both iterators should use the same DNS discovery client instance. This ensures that
the record cache and rate limit are shared. Records will not be requested multiple times.
While testing the change, I noticed that duplicate DNS requests do happen even
when the client instance is shared. This is because the two iterators request the tree
root, link tree root, and first levels of the tree in lockstep. To avoid this problem, the
change also adds a singleflight.Group instance in the client. When one iterator
attempts to resolve an entry which is already being resolved, the singleflight object
waits for the existing resolve call to finish and returns the entry to both places.
* eth/protocols/snap: generate storage trie from full dirty snap data
* eth/protocols/snap: get rid of some more dead code
* eth/protocols/snap: less frequent logs, also log during trie generation
* eth/protocols/snap: implement dirty account range stack-hashing
* eth/protocols/snap: don't loop on account trie generation
* eth/protocols/snap: fix account format in trie
* core, eth, ethdb: glue snap packets together, but not chunks
* eth/protocols/snap: print completion log for snap phase
* eth/protocols/snap: extended tests
* eth/protocols/snap: make testcase pass
* eth/protocols/snap: fix account stacktrie commit without defer
* ethdb: fix key counts on reset
* eth/protocols: fix typos
* eth/protocols/snap: make better use of delivered data (#44)
* eth/protocols/snap: make better use of delivered data
* squashme
* eth/protocols/snap: reduce chunking
* squashme
* eth/protocols/snap: reduce chunking further
* eth/protocols/snap: break out hash range calculations
* eth/protocols/snap: use sort.Search instead of looping
* eth/protocols/snap: prevent crash on storage response with no keys
* eth/protocols/snap: nitpicks all around
* eth/protocols/snap: clear heal need on 1-chunk storage completion
* eth/protocols/snap: fix range chunker, add tests
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
* trie: fix test API error
* eth/protocols/snap: fix some further liter issues
* eth/protocols/snap: fix accidental batch reuse
Co-authored-by: Martin Holst Swende <martin@swende.se>
* eth/protocols, prp/tracker: add support for req/rep rtt tracking
* p2p/tracker: sanity cap the number of pending requests
* pap/tracker: linter <3
* p2p/tracker: disable entire tracker if no metrics are enabled
This change adds the --catalyst flag, enabling an RPC API for eth2 integration.
In this initial version, catalyst mode also disables all peer-to-peer networking.
Co-authored-by: Mikhail Kalinin <noblesse.knight@gmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
* all: add thousandths separators for big numbers on log messages
* p2p/sentry: drop accidental file
* common, log: add fast number formatter
* common, eth/protocols/snap: simplifty fancy num types
* log: handle nil big ints
* core/vm: implement AccessListTracer
* eth: implement debug.createAccessList
* core/vm: fixed nil panics in accessListTracer
* eth: better error messages for createAccessList
* eth: some fixes on CreateAccessList
* eth: allow for provided accesslists
* eth: pass accesslist by value
* eth: remove created acocunt from accesslist
* core/vm: simplify access list tracer
* core/vm: unexport accessListTracer
* eth: return best guess if al iteration times out
* eth: return best guess if al iteration times out
* core: docstring, unexport methods
* eth: typo
* internal/ethapi: move createAccessList to eth package
* internal/ethapi: remove reexec from createAccessList
* internal/ethapi: break if al is equal to last run, not if gas is equal
* internal/web3ext: fixed arguments
* core/types: fixed equality check for accesslist
* core/types: no hardcoded vals
* core, internal: simplify access list generation, make it precise
* core/vm: fix typo
Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>
This removes the duplicated definition of eth_chainID
in package eth and updates the definition in internal/ethapi
to treat chain ID as a bigint.
Co-authored-by: Felix Lange <fjl@twurst.com>
The PR implements the --miner.notify.full flag that enables full pending block
notifications. When this flag is used, the block notifications sent to mining
endpoints contain the complete block header JSON instead of a work package
array.
Co-authored-by: AlexSSD7 <alexandersadovskyi7@protonmail.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>
Fixes the CaptureStart api to include the EVM, thus being able to set the statedb early on. This pr also exposes the struct we used internally in the interpreter to encapsulate the contract, mem, stack, rstack, so we pass it as a single struct to the tracer, and removes the error returns on the capture methods.
This adds support for EIP-2718 typed transactions as well as EIP-2930
access list transactions (tx type 1). These EIPs are scheduled for the
Berlin fork.
There very few changes to existing APIs in core/types, and several new APIs
to deal with access list transactions. In particular, there are two new
constructor functions for transactions: types.NewTx and types.SignNewTx.
Since the canonical encoding of typed transactions is not RLP-compatible,
Transaction now has new methods for encoding and decoding: MarshalBinary
and UnmarshalBinary.
The existing EIP-155 signer does not support the new transaction types.
All code dealing with transaction signatures should be updated to use the
newer EIP-2930 signer. To make this easier for future updates, we have
added new constructor functions for types.Signer: types.LatestSigner and
types.LatestSignerForChainID.
This change also adds support for the YoloV3 testnet.
Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Ryan Schneider <ryanleeschneider@gmail.com>
This PR adds a more CLI flag, so that the les-server can serve light clients even the local node is not synced yet.
This functionality is needed in some testing environments(e.g. hive). After launching the les server, no more blocks will be imported so the node is always marked as "non-synced".
This PR prevents users from submitting transactions without EIP-155 enabled. This behaviour can be overridden by specifying the flag --rpc.allow-unprotected-txs=true.
This PR optimizes the broadcast loop. Instead of iterating twice through a given set of transactions to weed out which peers have and which do not have a tx, to send/announce transactions, we do it only once.
Prevents a situation where we (not running snap) connects with a peer running snap, and get stalled waiting for snap registration to succeed (which will never happen), which cause a waitgroup wait to halt shutdown
This moves the eth config definition into a separate package, eth/ethconfig.
Packages eth and les can now import this common package instead of
importing eth from les, reducing dependencies.
Co-authored-by: Felix Lange <fjl@twurst.com>
The PR makes use of the stacktrie, which is is more lenient on resource consumption, than the regular trie, in cases where we only need it for DeriveSha
* remove uneeded convertion type
* remove redundant type in composite literal
* omit explicit type where implicit
* remove unused redundant parenthesis
* remove redundant import alias duktape
Removes the yolov2 definition, adds yolov3, including EIP-2565. This PR also disables some of the erroneously generated blockchain and statetests, and adds the new genesis hash + alloc for yolov3.
This PR disables the CLI switches for yolo, since it's not complete until we merge support for 2930.
This moves the tracing RPC API implementation to package eth/tracers.
By doing so, package eth no longer depends on tracing and the duktape JS engine.
The change also enables tracing using the light client. All tracing methods work with the
light client, but it's a lot slower compared to using a full node.
This PR introduces a new config field SyncFromCheckpoint for light client.
In some special scenarios, it's required to start synchronization from some
arbitrary checkpoint or even from the scratch. So this PR offers this
flexibility to users so that the synchronization start point can be configured.
There are two relevant configs: SyncFromCheckpoint and Checkpoint.
- If the SyncFromCheckpoint is true, the light client will try to sync from the
specified checkpoint.
- If the Checkpoint is not configured, then the light client will sync from the
scratch(from the latest header if the database is not empty)
Additional notes: these two configs are not visible in the CLI flags but only
accessable in the config file.
Example Usage:
[Eth]
SyncFromCheckpoint = true
[Eth.Checkpoint]
SectionIndex = 100
SectionHead = "0xabc"
CHTRoot = "0xabc"
BloomRoot = "0xabc"
PS. Historical checkpoint can be retrieved from the synced full node or light
client via les_getCheckpoint API.
This changes the chainID RPC method to return an error when EIP-155 is not yet
active at the current block height. It used to simply return zero in this case, but
that's confusing.
