Closes#23210
# Context
When deploying Geth in Kubernetes with ReplicaSets, we encountered two
DNS-related issues affecting node connectivity. First, during startup,
Geth tries to resolve DNS names for static nodes too early in the config
unmarshaling phase. If peer nodes aren't ready yet (which is common in
Kubernetes rolling deployments), this causes an immediate failure:
```
INFO [11-26|10:03:42.816] Starting Geth on Ethereum mainnet...
INFO [11-26|10:03:42.817] Bumping default cache on mainnet provided=1024 updated=4096
Fatal: config.toml, line 81: (p2p.Config.StaticNodes) lookup idontexist.geth.node: no such host
```
The second issue comes up when pods get rescheduled to different nodes -
their IPs change but peers keep using the initially resolved IP, never
updating the DNS mapping.
This PR adds proper DNS support for enode:// URLs by deferring resolution
to connection time. It also handles DNS failures gracefully instead of failing
fatally during startup, making it work better in container environments where
IPs are dynamic and peers come and go during rollouts.
---------
Co-authored-by: Felix Lange <fjl@twurst.com>
This fixes an issue where the disconnect message was not wrapped in a list.
The specification requires it to be a list like any other message.
In order to remain compatible with legacy geth versions, we now accept both
encodings when parsing a disconnect message.
---------
Co-authored-by: Felix Lange <fjl@twurst.com>
This PR modifies how the metrics library handles `Enabled`: previously,
the package `init` decided whether to serve real metrics or just
dummy-types.
This has several drawbacks:
- During pkg init, we need to determine whether metrics are enabled or
not. So we first hacked in a check if certain geth-specific
commandline-flags were enabled. Then we added a similar check for
geth-env-vars. Then we almost added a very elaborate check for
toml-config-file, plus toml parsing.
- Using "real" types and dummy types interchangeably means that
everything is hidden behind interfaces. This has a performance penalty,
and also it just adds a lot of code.
This PR removes the interface stuff, uses concrete types, and allows for
the setting of Enabled to happen later. It is still assumed that
`metrics.Enable()` is invoked early on.
The somewhat 'heavy' operations, such as ticking meters and exp-decay,
now checks the enable-flag to prevent resource leak.
The change may be large, but it's mostly pretty trivial, and from the
last time I gutted the metrics, I ensured that we have fairly good test
coverage.
---------
Co-authored-by: Felix Lange <fjl@twurst.com>
This PR attempts to clean up some ambiguities and quirks from recent
changes to evm flag handling.
This PR mainly focuses on `evm run` subcommand, to use the same flags
for configuring tracing/output options as `statetest/blocktest` does.
Additionally, it adds quite a lot of tests for expected outputs of the
various subcommands, to avoid accidental changes.
---------
Co-authored-by: Felix Lange <fjl@twurst.com>
It's a pull request based on https://github.com/ethereum/go-ethereum/pull/30643
In this pull request, the partial functional state reader is enabled if **legacy snapshot
is not enabled**. The tracked flat states in pathdb will be used to serve the state
retrievals, as the second implementation to fasten the state access.
This pull request should be a noop change in normal cases.
This PR extends the Hooks interface with a new method,
`OnSystemCallStartV2`, which takes `VMContext` as its parameter.
Motivation
By including `VMContext` as a parameter, the `OnSystemCallStartV2` hook
achieves parity with the `OnTxStart` hook in terms of provided insights.
This alignment simplifies the inner tracer logic, enabling consistent
handling of state changes and internal calls within the same framework.
---------
Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>
This PR refactors the structlog a bit, making it so that it can be used
in a streaming mode.
-------------
OBS: this PR makes a change in the input `config` config, the third
input-parem field to `debug.traceCall`. Previously, seteting it to e.g.
` {"enableMemory": true, "limit": 1024}` would mean that the response
was limited to `1024` items. Since an 'item' may include both memory and
storage, the actual size of the response was undertermined.
After this change, the response will be limited to `1024` __`bytes`__
(or thereabouts).
-----------
The commandline usage of structlog now uses the streaming mode, leaving
the non-streaming mode of operation for the eth_Call.
There are two benefits of streaming mode
1. Not have to maintain a long list of operations,
2. Not have to duplicate / n-plicate data, e.g. memory / stack /
returndata so that each entry has their own private slice.
---------
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
Lots of packages depend on eth/downloader just for the SyncMode type.
Since we have a dedicated package for eth protocol configuration, it
makes more sense to define SyncMode there, turning eth/downloader into
more of a leaf package.
This flag is very rarely needed, so it's OK for it to have a verbose
name. The name --trace also conflicts with the concept of EVM tracing,
which is much more heavily used.
The fuzzer added recenly to fuzz the eth handler doesn't
build on oss-fuzz, because it also has dependencies in the peer_test.go.
This change fixes it, I hope, by adding that file also for preprocessing.
* unify `staterunner` and `blockrunner` CLI flags, especially around
tracing
* added support for struct logger or json logging (although having issue
#30658)
* new --cross-check flag to validate the stateless witness collection
/ execution matches stateful
* adds support for tracing the stateless execution when a tracer is set
(to more easily debug differences)
* --human for more readable test summary
* directory or file input, so if you pass tests/spec-tests/fixtures/blockchain_tests it will execute all
blockchain tests
When a tx/block was being traced through the API the state hooks weren't
being called as they should. This is due to #30745 moving the hooked
statedb one level up in the state processor. This PR fixes that.
---------
Co-authored-by: Martin HS <martin@swende.se>
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
Zsolt Felfoldi
Lucas
Antony Denyer
lorenzo
gitglorythegreat
Darren Kelly
Hteev Oli
Martin HS
Zheyuan He
rjl493456442
steven
Guillaume Ballet
Nebojsa Urosevic
Felix Lange
lightclient
Sina M