Commit Graph

294 Commits

Author SHA1 Message Date
Martin Michlmayr
4f2784b38f
all: fix typos in comments (#21118) 2020-05-25 10:21:28 +02:00
Felföldi Zsolt
b4a2681120
les, les/lespay: implement new server pool (#20758)
This PR reimplements the light client server pool. It is also a first step
to move certain logic into a new lespay package. This package will contain
the implementation of the lespay token sale functions, the token buying and
selling logic and other components related to peer selection/prioritization
and service quality evaluation. Over the long term this package will be
reusable for incentivizing future protocols.

Since the LES peer logic is now based on enode.Iterator, it can now use
DNS-based fallback discovery to find servers.

This document describes the function of the new components:
https://gist.github.com/zsfelfoldi/3c7ace895234b7b345ab4f71dab102d4
2020-05-22 13:46:34 +02:00
gary rong
53cac027d0
les: drop the message if the entire p2p connection is stuck (#21033)
* les: drop the message if the entire p2p connection is stuck

* les: fix lint
2020-05-12 11:02:15 +03:00
Boqin Qin
c43be6cf87
les: remove invalid use of t.Fatal in TestHandshake (#21012) 2020-05-01 13:48:52 +02:00
gary rong
44ff3f3dc9
trie: initial implementation for range proof (#20908)
* trie: initial implementation for range proof

* trie: add benchmark

* trie: fix lint

* trie: fix minor issue

* trie: unset the edge valuenode as well

* trie: unset the edge valuenode as nilValuenode
2020-04-24 14:37:56 +03:00
gary rong
b9df7ecdc3
all: seperate consensus error and evm internal error (#20830)
* all: seperate consensus error and evm internal error

There are actually two types of error will be returned when
a tranaction/message call is executed: (a) consensus error
(b) evm internal error. The former should be converted to
a consensus issue, e.g. The sender doesn't enough asset to
purchase the gas it specifies. The latter is allowed since
evm itself is a blackbox and internal error is allowed to happen.

This PR emphasizes the difference by introducing a executionResult
structure. The evm error is embedded inside. So if any error
returned, it indicates consensus issue happens.

And also this PR improve the `EstimateGas` API to return the concrete
revert reason if the transaction always fails

* all: polish

* accounts/abi/bind/backends: add tests

* accounts/abi/bind/backends, internal: cleanup error message

* all: address comments

* core: fix lint

* accounts, core, eth, internal: address comments

* accounts, internal: resolve revert reason if possible

* accounts, internal: address comments
2020-04-22 11:25:36 +03:00
rene
648b0cb714
cmd, core: remove override muir glacier and override istanbul (#20942) 2020-04-20 12:46:38 +03:00
Martin Holst Swende
6402c42b67
all: simplify and fix database iteration with prefix/start (#20808)
* core/state/snapshot: start fixing disk iterator seek

* ethdb, rawdb, leveldb, memorydb: implement iterators with prefix and start

* les, core/state/snapshot: iterator fixes

* all: remove two iterator methods

* all: rename Iteratee.NewIteratorWith -> NewIterator

* ethdb: fix review concerns
2020-04-15 14:08:53 +03:00
gary rong
00064ddcfb
accounts/abi: implement new fallback functions (#20764)
* accounts/abi: implement new fackball functions

In Solidity v0.6.0, the original fallback is separated
into two different sub types: fallback and receive.

This PR addes the support for parsing new format abi
and the relevant abigen functionalities.

* accounts/abi: fix unit tests

* accounts/abi: minor fixes

* accounts/abi, mobile: support jave binding

* accounts/abi: address marius's comment

* accounts/abi: Work around the uin64 conversion issue

Co-authored-by: Guillaume Ballet <gballet@gmail.com>
2020-04-15 09:23:58 +02:00
Felföldi Zsolt
0851646e48
les, les/lespay/client: add service value statistics and API (#20837)
This PR adds service value measurement statistics to the light client. It
also adds a private API that makes these statistics accessible. A follow-up
PR will add the new server pool which uses these statistics to select
servers with good performance.

This document describes the function of the new components:
https://gist.github.com/zsfelfoldi/3c7ace895234b7b345ab4f71dab102d4

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
2020-04-09 11:55:32 +02:00
gary rong
f0b5eb09eb
eth, les: fix flaky tests (#20897)
* les: fix flaky test

* eth: fix flaky test
2020-04-07 09:16:21 +03:00
ucwong
4d891f23b5
les: add missing Ticker.Stop call (#20864) 2020-04-02 15:54:59 +02:00
gary rong
f78ffc0545
les: create utilities as common package (#20509)
* les: move execqueue into utilities package

execqueue is a util for executing queued functions
in a serial order which is used by both les server
and les client. Move it to common package.

* les: move randselect to utilities package

weighted_random_selector is a helpful tool for randomly select
items maintained in a set but based on the item weight.

It's used anywhere is LES package, mainly by les client but will
be used in les server with very high chance. So move it into a
common package as the second step for les separation.

* les: rename to utils
2020-03-31 17:17:24 +02:00
gary rong
62cd943c7b
les: fix dead lock (#20828) 2020-03-27 17:21:58 +02:00
Martin Holst Swende
39f502329f
internal/ethapi: don't set sender-balance to maxuint, fixes #16999 (#20783)
Prior to this change, eth_call changed the balance of the sender account in the
EVM environment to 2^256 wei to cover the gas cost of the call execution.
We've had this behavior for a long time even though it's super confusing.

This commit sets the default call gasprice to zero instead of updating the balance,
which is better because it makes eth_call semantics less surprising. Removing
the built-in balance assignment also makes balance overrides work as expected.
2020-03-23 18:21:23 +01:00
Péter Szilágyi
613af7ceea
Merge pull request #20152 from karalabe/snapshot-5
Dynamic state snapshots
2020-03-23 12:57:31 +02:00
gary rong
92f3405dae
eth, les: fix time sensitive unit tests (#20741) 2020-03-12 11:25:52 +01:00
gary rong
4fabd9cbd2
les: separate peer into clientPeer and serverPeer (#19991)
* les: separate peer into clientPeer and serverPeer

* les: address comments
2020-02-26 11:41:24 +02:00
Péter Szilágyi
06d4470b41
core: fix broken tests due to API changes + linter 2020-02-25 12:51:16 +02:00
gary rong
2e1ecc02bd
les, miner, accounts/abi/bind: fix load-sensitive unit tests (#20698) 2020-02-20 13:05:54 +01:00
Felix Lange
dae3aee5ff
les: add bootstrap nodes as initial discoveries (#20688) 2020-02-18 13:24:05 +02:00
Adam Schmideg
8045504abf
les: log disconnect reason when light server is not synced (#20643)
Co-authored-by: ligi <ligi@ligi.de>
2020-02-11 16:46:32 +01:00
gary rong
4d663d57d6 les: fix request serving metrics (#20507) 2020-01-08 15:08:56 +02:00
gary rong
c6285e6437 les/checkpointoracle: move oracle into its own package (#20508)
* les: move the checkpoint oracle into its own package

It's first step of refactor LES package. LES package
basically can be divided into LES client and LES server.
However both sides will use checkpoint package for
status retrieval and verification. So this PR moves
checkpoint oracle into a separate package

* les: address comments
2020-01-07 11:24:21 +02:00
Felföldi Zsolt
3bb6815fc1
les: do not disconnect another server (#20453) 2019-12-25 02:06:00 +01:00
Felix Lange
d90d1db609
eth/filters: remove use of event.TypeMux for pending logs (#20312) 2019-12-10 12:39:14 +01:00
Martin Holst Swende
bc01593afb consensus/ethash, params: eip-2384: bump difficulty bomb (#20347)
* consensus/ethash, params: implement eip-2384: bump difficulty bomb

* params: EIP 2384 compat checks

* consensus, params: add Muir Glacier block number (mainnet,ropsten) + official name

* core/forkid: forkid tests for muir glacier

* params/config: address review concerns

* params, core/forkid: review nitpicks

* cmd/geth,eth,les: add override option for muir glacier

* params: nit fix
2019-12-06 11:36:40 +02:00
Guillaume Ballet
c4844e9ee2
les: fix staticcheck warnings (#20371) 2019-11-27 09:49:41 +01:00
Felföldi Zsolt
878e35bfde les: fix clientInfo deadlock (#20395) 2019-11-26 12:17:15 +02:00
Felix Lange
9c6cf960b4
internal/web3ext, les: update clique JS and make it work with the light client (#20318)
Also fix the input formatter on clique_getSnapshot and clique_getSigners
so that integers as well as hex number strings are accepted.
2019-11-19 18:22:04 +01:00
Felföldi Zsolt
422604b438 les: rename UpdateBalance to AddBalance and simplify return format (#20304) 2019-11-18 12:42:49 +01:00
Felix Lange
689486449d build: use golangci-lint (#20295)
* build: use golangci-lint

This changes build/ci.go to download and run golangci-lint instead
of gometalinter.

* core/state: fix unnecessary conversion

* p2p/simulations: fix lock copying (found by go vet)

* signer/core: fix unnecessary conversions

* crypto/ecies: remove unused function cmpPublic

* core/rawdb: remove unused function print

* core/state: remove unused function xTestFuzzCutter

* core/vm: disable TestWriteExpectedValues in a different way

* core/forkid: remove unused function checksum

* les: remove unused type proofsData

* cmd/utils: remove unused functions prefixedNames, prefixFor

* crypto/bn256: run goimports

* p2p/nat: fix goimports lint issue

* cmd/clef: avoid using unkeyed struct fields

* les: cancel context in testRequest

* rlp: delete unreachable code

* core: gofmt

* internal/build: simplify DownloadFile for Go 1.11 compatibility

* build: remove go test --short flag

* .travis.yml: disable build cache

* whisper/whisperv6: fix ineffectual assignment in TestWhisperIdentityManagement

* .golangci.yml: enable goconst and ineffassign linters

* build: print message when there are no lint issues

* internal/build: refactor download a bit
2019-11-18 10:49:17 +02:00
Felföldi Zsolt
bf5c6b29fa les: implement server priority API (#20070)
This PR implements the LES server RPC API. Methods for server
capacity, client balance and client priority management are provided.
2019-11-13 23:47:03 +01:00
gary rong
b9bac1f384 les: fix and slim the unit tests of les (#20247)
* les: loose restriction of unit tests

* les: update unit tests

* les, light: slim the unit tests
2019-11-06 22:09:37 +01:00
gary rong
0ce5e113be les: rework clientpool (#20077)
* les: rework clientpool
2019-11-02 13:02:35 +01:00
Felix Lange
6e730915bd les: add empty "les" ENR entry for servers (#20145) 2019-10-02 14:14:27 +03:00
Ryan Schneider
ad03d9801c internal/ethapi: support block number or hash on state-related methods (#19491)
This change adds support for EIP-1898.
2019-09-26 10:47:31 +02:00
gary rong
32b07e8b1f les: fix checkpoint sync (#20120) 2019-09-25 10:05:15 +02:00
Felföldi Zsolt
0ac9bbba6c les: multiple server bugfixes (#20079)
* les: detailed relative cost metrics

* les: filter txpool relative request statistic

* les: initialize price factors

* les: increased connected bias to lower churn rate

* les: fixed clientPool.setLimits

* core: do not use mutex in GetAncestor

* les: bump factor db version again

* les: add metrics

* les, light: minor fixes
2019-09-17 16:28:41 +03:00
Felix Lange
b1c3010bf2
common/mclock: clean up AfterFunc support (#20054)
This change adds tests for the virtual clock and aligns the interface
with the time package by renaming Cancel to Stop. It also removes the
binary search from Stop because it complicates the code unnecessarily.
2019-09-16 11:16:30 +02:00
Felix Lange
39b0b1a1a6
all: make unit tests work with Go 1.13 (#20053)
Most of these changes are related to the Go 1.13 changes to test binary
flag handling. 

* cmd/geth: make attach tests more reliable

This makes the test wait for the endpoint to come up by polling
it instead of waiting for two seconds.

* tests: fix test binary flags for Go 1.13

Calling flag.Parse during package initialization is prohibited
as of Go 1.13 and causes test failures. Call it in TestMain instead.

* crypto/ecies: remove useless -dump flag in tests

* p2p/simulations: fix test binary flags for Go 1.13

Calling flag.Parse during package initialization is prohibited
as of Go 1.13 and causes test failures. Call it in TestMain instead.

* build: remove workaround for ./... vendor matching

This workaround was necessary for Go 1.8. The Go 1.9 release changed
the expansion rules to exclude vendored packages.

* Makefile: use relative path for GOBIN

This makes the "Run ./build/bin/..." line look nicer.

* les: fix test binary flags for Go 1.13

Calling flag.Parse during package initialization is prohibited
as of Go 1.13 and causes test failures. Call it in TestMain instead.
2019-09-11 14:41:22 +02:00
gary rong
396f1dd87b les: fix panic (#20013) 2019-08-27 15:29:00 +02:00
gary rong
68502595f6 les: wait for all task goroutines before dropping the peer (#20010)
* les: wait all task routines before drop the peer

* les: address comments

* les: fix issue
2019-08-27 14:07:25 +03:00
Péter Szilágyi
e39b2a2bde
acmd, core, eth, les: support --override.istanbul 2019-08-23 12:09:27 +03:00
gary rong
2ed729d38e les: handler separation (#19639)
les: handler separation
2019-08-21 11:29:34 +02:00
gary rong
8657a0d6b5 les: degrade the log level (#19939) 2019-08-12 14:19:53 +03:00
Felföldi Zsolt
a7de796840
les: implement new client pool (#19745) 2019-08-03 14:36:10 +02:00
Péter Szilágyi
140a7e9177
accounts/abi/bind: support closing a simulated backend 2019-07-31 11:35:57 +03:00
gary rong
8812c4d3f9 eth, graphql, internal/ethapi, les: polish and improve graphql (#19886) 2019-07-25 09:29:53 +03:00
gary rong
530f78e22d eth, internal, les: add getHeaderBy* APIs (#19669)
* eth, interal, les: add getHeaderBy* APIs

* internal: address the comment

* eth, internal, les: getHeader nits, missing TD, console callable
2019-07-23 16:52:24 +03:00
gary rong
f08eb04896 les: get rid of testing tx journal (#19876) 2019-07-23 12:53:35 +03:00
gary rong
b80c840af3 core, les: fix les unit tests (#19823) 2019-07-22 15:45:40 +03:00
Péter Szilágyi
1a83114c74
all: update author list and licenses 2019-07-22 12:17:27 +03:00
大彬
4ac04ae0fe all: replace fmt.Print* calls with t.Log* in tests (#19670) 2019-07-17 13:20:24 +02:00
Péter Szilágyi
c705aac826
cmd, eth, les: make les flags conform to dotted style 2019-07-10 09:12:07 +03:00
Péter Szilágyi
213690cdfd
cmd, eth, les: fix up ultra light config integration 2019-07-09 20:34:42 +03:00
Martin Holst Swende
cdfe9a3a2a eth, les: add sanity checks for unbounded block fields (#19573)
This PR adds some hardening in the lower levels of the protocol stack, to bail early on invalid data. Primarily, attacks that this PR protects against are on the "annoyance"-level, which would otherwise write a couple of megabytes of data into the log output, which is a bit resource intensive.
2019-07-08 11:42:22 +02:00
gary rong
6814797173 accounts, cmd, contracts, les: integrate clef for transaction signing (#19783)
* accounts, cmd, contracts, les: integrate clef for transaction signing

* accounts, cmd/checkpoint-admin, signer/core: minor fixups
2019-07-03 22:54:59 +03:00
gary rong
59a3198382 les: remove half-finished priority pool APIs (#19780)
* les: remove half-finish APIs

* les: remove half-finish APIs
2019-07-03 21:23:06 +03:00
Péter Szilágyi
22411919da
cmd, eth, les, param: drop --override.constantinople 2019-07-02 14:14:59 +03:00
gary rong
f7cdea2bdc all: on-chain oracle checkpoint syncing (#19543)
* all: implement simple checkpoint syncing

cmd, les, node: remove callback mechanism

cmd, node: remove callback definition

les: simplify the registrar

les: expose checkpoint rpc services in the light client

les, light: don't store untrusted receipt

cmd, contracts, les: discard stale checkpoint

cmd, contracts/registrar: loose restriction of registeration

cmd, contracts: add replay-protection

all: off-chain multi-signature contract

params: deploy checkpoint contract for rinkeby

cmd/registrar: add raw signing mode for registrar

cmd/registrar, contracts/registrar, les: fixed messages

* cmd/registrar, contracts/registrar: fix lints

* accounts/abi/bind, les: address comments

* cmd, contracts, les, light, params: minor checkpoint sync cleanups

* cmd, eth, les, light: move checkpoint config to config file

* cmd, eth, les, params: address comments

* eth, les, params: address comments

* cmd: polish up the checkpoint admin CLI

* cmd, contracts, params: deploy new version contract

* cmd/checkpoint-admin: add another flag for clef mode signing

* cmd, contracts, les: rename and regen checkpoint oracle with abigen
2019-06-28 10:34:02 +03:00
Matthew Halpern
702f52fb99 les: prefer nil slices over zero-length slices (#19081) 2019-06-27 12:03:56 +03:00
gary rong
c8c3ebd593 les: reject client if it makes too many invalid requests (#19691)
* les: reject client connection if it makes too much invalid req

* les: address comments

* les: use uint32

* les: fix variable name

* les: add invalid counter for duplicate invalid req
2019-06-12 14:09:40 +03:00
Martin Holst Swende
3675b8545d
les/handler: avoid lookup missing state 2019-06-12 11:18:49 +02:00
gary rong
c0a034ec89 eth, les: reject stale request (#19689)
* eth, les: reject stale request

* les: reuse local head number
2019-06-11 10:40:32 +03:00
Felix Lange
e83c3ccc47
p2p/enode: improve IPv6 support, add ENR text representation (#19663)
* p2p/enr: add entries for for IPv4/IPv6 separation

This adds entry types for "ip6", "udp6", "tcp6" keys. The IP type stays
around because removing it would break a lot of code and force everyone
to care about the distinction.

* p2p/enode: track IPv4 and IPv6 address separately

LocalNode predicts the local node's UDP endpoint and updates the record.
This change makes it predict IPv4 and IPv6 endpoints separately since
they can now be in the record at the same time.

* p2p/enode: implement base64 text format
* all: switch to enode.Parse(...)

This allows passing base64-encoded node records to all the places that
previously accepted enode:// URLs. The URL format is still supported.

* cmd/bootnode, p2p: log node URL instead of ENR

...and return the base64 record in NodeInfo.
2019-06-07 15:31:00 +02:00
gary rong
f2612ac948 les: short circuit in the unregister if peer is not registered (#19644) 2019-05-31 10:54:50 +03:00
Felföldi Zsolt
58497f46bd
les, les/flowcontrol: implement LES/3 (#19329)
les, les/flowcontrol: implement LES/3
2019-05-30 20:51:13 +02:00
gary rong
4e0c1a1a6b eth, les: reject light client connection is server is not synced (#19616)
* eth, les: reject light client connection is server is not synced

* eth, les: rename function and variables

* les: format
2019-05-26 19:15:05 +03:00
Felföldi Zsolt
97d3615612
les: avoid fetcher deadlock on requestChn (#19571)
* les: avoid fetcher deadlock on requestChn
2019-05-17 20:39:39 +02:00
gary rong
80469bea0c
all: integrate the freezer with fast sync
* all: freezer style syncing

core, eth, les, light: clean up freezer relative APIs

core, eth, les, trie, ethdb, light: clean a bit

core, eth, les, light: add unit tests

core, light: rewrite setHead function

core, eth: fix downloader unit tests

core: add receipt chain insertion test

core: use constant instead of hardcoding table name

core: fix rollback

core: fix setHead

core/rawdb: remove canonical block first and then iterate side chain

core/rawdb, ethdb: add hasAncient interface

eth/downloader: calculate ancient limit via cht first

core, eth, ethdb: lots of fixes

* eth/downloader: print ancient disable log only for fast sync
2019-05-16 10:39:32 +03:00
Péter Szilágyi
9effd64290
core, eth, trie: bloom filter for trie node dedup during fast sync (#19489)
* core, eth, trie: bloom filter for trie node dedup during fast sync

* eth/downloader, trie: address review comments

* core, ethdb, trie: restart fast-sync bloom construction now and again

* eth/downloader: initialize fast sync bloom on startup

* eth: reenable eth/62 until we properly remove it
2019-05-13 15:28:01 +03:00
Felföldi Zsolt
40cdcf8c47 les, light: implement ODR transaction lookup by hash (#19069)
* les, light: implement ODR transaction lookup by hash

* les: delete useless file

* internal/ethapi: always use backend to find transaction

* les, eth, internal/ethapi: renamed GetCanonicalTransaction to GetTransaction

* light: add canonical header verification to GetTransaction
2019-05-13 14:41:10 +03:00
Felföldi Zsolt
f4fb1a1801 les: fixed cost table update (#19546) 2019-05-13 14:26:47 +03:00
Martin Holst Swende
5036992b06 eth, les: add error when accessing missing block state (#18346)
This change makes getBalance, getCode, getStorageAt, getProof,
call, getTransactionCount return an error if the block number in
the request doesn't exist. getHeaderByNumber still returns null
for missing headers.
2019-05-02 14:50:23 +02:00
gary rong
6269e5574c miner: polish miner configuration (#19480)
* cmd, eth, miner: disable advance sealing if user require

* cmd, console, miner, les, eth: wrap the miner config

* eth: remove todo

* cmd, miner: revert noadvance flag

The reason for this is: if the transaction execution is even longer
than block time, then this kind of transactions is DoS attack.
2019-04-23 10:08:51 +03:00
Péter Szilágyi
f496927a93
Merge pull request #19468 from karalabe/enforce-fastsync-checkpoints
eth, les, light: enforce CHT checkpoints on fast-sync too
2019-04-17 14:50:51 +03:00
Péter Szilágyi
38f6b85638
eth, les, light: enforce CHT checkpoints on fast-sync too 2019-04-17 13:16:15 +03:00
Felföldi Zsolt
921b3160db les: fix p2p.Protocol.PeerInfo (#19472) 2019-04-17 10:57:53 +03:00
Felföldi Zsolt
85b6823d16 les: check required message types in cost table (#19454) 2019-04-16 14:30:47 +03:00
Péter Szilágyi
7221cb1434
core, eth, les, light: scope receipt functionality a bit cleaner 2019-04-15 13:42:26 +03:00
Matthew Halpern
6b0ddd141e
core, eth, les, light: store transaction receipts without txHash and gasCost 2019-04-15 13:15:39 +03:00
Felföldi Zsolt
7c08e48141
Merge pull request #19403 from zsfelfoldi/remove-les1
les: remove support for LES/1
2019-04-08 14:04:14 +02:00
Martin Holst Swende
e2f3465e83 eth, les, geth: implement cli-configurable global gas cap for RPC calls (#19401)
* eth, les, geth: implement cli-configurable global gas cap for RPC calls

* graphql, ethapi: place gas cap in DoCall

* ethapi: reformat log message
2019-04-08 14:49:52 +03:00
Zsolt Felfoldi
64f9c1ea09 les, light: remove support for les/1 4096 block CHT sections 2019-04-08 13:17:24 +02:00
Zsolt Felfoldi
5515f364ae les: removed les/1 protocol messages 2019-04-08 13:17:24 +02:00
gary rong
d5cae48bae accounts, cmd, internal: disable unlock account on open HTTP (#17037)
* cmd, accounts, internal, node, rpc, signer: insecure unlock protect

* all: strict unlock API by rpc

* cmd/geth: check before printing warning log

* accounts, cmd/geth, internal: tiny polishes
2019-04-04 14:03:10 +03:00
Felföldi Zsolt
5164274872 les: extend error message for coinbase API calls (#19380) 2019-04-03 10:15:15 +03:00
Felföldi Zsolt
e852505ace les: fix block announcements (#19322) 2019-03-25 09:17:55 +02:00
Felföldi Zsolt
c53c5e616f les: fix peer id and reply error handling (#19289)
* les: fixed peer id format

* les: fixed peer reply error handling
2019-03-20 10:35:05 +02:00
Péter Szilágyi
211ec46284
les, light: verbose errors on state retrieval issues 2019-03-18 13:19:40 +02:00
Péter Szilágyi
054412e335
all: clean up and proerly abstract database access 2019-03-06 13:35:03 +02:00
Felföldi Zsolt
c2003ed63b les, les/flowcontrol: improved request serving and flow control (#18230)
This change

- implements concurrent LES request serving even for a single peer.
- replaces the request cost estimation method with a cost table based on
  benchmarks which gives much more consistent results. Until now the
  allowed number of light peers was just a guess which probably contributed
  a lot to the fluctuating quality of available service. Everything related
  to request cost is implemented in a single object, the 'cost tracker'. It
  uses a fixed cost table with a global 'correction factor'. Benchmark code
  is included and can be run at any time to adapt costs to low-level
  implementation changes.
- reimplements flowcontrol.ClientManager in a cleaner and more efficient
  way, with added capabilities: There is now control over bandwidth, which
  allows using the flow control parameters for client prioritization.
  Target utilization over 100 percent is now supported to model concurrent
  request processing. Total serving bandwidth is reduced during block
  processing to prevent database contention.
- implements an RPC API for the LES servers allowing server operators to
  assign priority bandwidth to certain clients and change prioritized
  status even while the client is connected. The new API is meant for
  cases where server operators charge for LES using an off-protocol mechanism.
- adds a unit test for the new client manager.
- adds an end-to-end test using the network simulator that tests bandwidth
  control functions through the new API.
2019-02-26 12:32:48 +01:00
Matthew Halpern
badaf43019 les: remove redundant type specifiers (#19091) 2019-02-25 12:49:49 +02:00
gary rong
7fd0ccaa68 core: remove unnecessary fields in logs, receipts and tx lookups (#17106)
* core: remove unnecessary fields in log

* core: bump blockchain database version

* core, les: remove unnecessary fields in txlookup

* eth: print db version explicitly

* core/rawdb: drop txlookup entry struct wrapper
2019-02-21 15:14:35 +02:00
b00ris
769657060e les: implement ultralight client (#16904)
For more information about this light client mode, read
https://hackmd.io/s/HJy7jjZpm
2019-01-24 12:18:26 +01:00
Martin Holst Swende
83a9a73b89 cmd/geth, core, eth: implement Constantinople override flag (#18273)
* geth/core/eth: implement constantinople override flag

* les: implemnent constantinople override flag for les clients

* cmd/geth, eth, les: fix typo, move flag to experimentals
2018-12-11 14:19:03 +02:00
Paweł Bylica
de39513ced core, internal, eth, miner, les: Take VM config from BlockChain (#17955)
Until this commit, when sending an RPC request that called `NewEVM`, a blank `vm.Config`
would be taken so as to set some options, based on the default configuration. If some extra
configuration switches were passed to the blockchain, those would be ignored.

This PR adds a function to get the config from the blockchain, and this is what is now used
for RPC calls.

Some subsequent changes need to be made, see https://github.com/ethereum/go-ethereum/pull/17955#pullrequestreview-182237244
for the details of the discussion.
2018-12-06 14:34:49 +01:00
zah
55a4ff806f remove a no-op line in the code (#17760) 2018-11-29 10:56:59 +01:00
Felföldi Zsolt
f0515800e6 les: fix fetcher syncing logic (#18072) 2018-11-26 13:34:33 +02:00