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.
Adding warnings of free disk space left and graceful shutdown when there is not enough space left.
This also adds a flag datadir.minfreedisk which can be used to set the trigger for low disk space, and setting it to zero disables the check.
Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Felix Lange <fjl@twurst.com>
This PR has two changes in the les protocol:
- the auxRoot is not supported. See ethereum/devp2p#171 for more information
- the empty response will be returned in GetHelperTrieProofsMsg request if the merkle
proving is failed. note, for backward compatibility, the empty merkle proof as well as
the request auxiliary data will still be returned in les2/3 protocol no matter the proving
is successful or not. the proving failure can happen e.g. request the proving for a
non-included entry in helper trie (unstable header).
The tests sometimes failed with certain go versions because
the behavior of http.Server.Shutdown changed over time. A bug
that was fixed in Go 1.15 could cause active connections on unrelated
servers to close unexpectedly. This is fixed by avoiding use of the
same port number in all tests.
USB enumeration still occured. Make sure it will only occur if --usb is set.
This also deprecates the 'NoUSB' config file option in favor of a new option 'USB'.
Resolves https://github.com/etclabscore/core-geth/issues/273
jsre.JSRE already handles establishing preload
file paths relative to the 'assets' path (aka docroot),
where it joins the assets dir and the file path if relative,
or uses the file path only if absolute.
The duplication of this logic by MakeConsolePreloads
caused preloaded files to have paths which contained
duplicate references to the assets dir path.
Date: 2020-12-30 08:25:01-06:00
Signed-off-by: meows <b5c6@protonmail.com>
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.
This commit extends the ethclient test suite and increases code coverage of the ethclient
package from ~15% to >55%. These tests act as early smoke tests to signal issues in the
RPC-interface. E.g. if a functionality like eth_chainId or eth_call breaks, the test
will break.
This changes the JSON encoding of blocks returned by the API
to have decimal instead of hexadecimal numbers. The spec wants
it this way.
Co-authored-by: Martin Holst Swende <martin@swende.se>
This PR removes a logic in the miner, which was originally intended to help temporary testnets based on ethash from "running off into the future". If the difficulty was low, and a few computers started mining several blocks per second, the ethash rules (which demand 1s delay between blocks) would push the blocktimes further and further away.
The solution was to make the miner sleep while this happened.
Nowadays, this problem is solved instead by PoA chains, and it's recommended to let testnets and devnets be based on clique instead. The existing logic is problematic, since it can cause stalls within the miner making it difficult for remote workers to submit work if the channel is blocked on a sleep.
Credits to Saar Tochner for reporting this via the bug bounty
