25 Commits (42b81f94adba9aae7f7727951f35e92184b1eedb)

Author	SHA1	Message	Date
Felföldi Zsolt	97d3615612	les: avoid fetcher deadlock on requestChn (#19571) ... * les: avoid fetcher deadlock on requestChn	6 years ago
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.	6 years ago
b00ris	769657060e	les: implement ultralight client (#16904) ... For more information about this light client mode, read https://hackmd.io/s/HJy7jjZpm	6 years ago
Felföldi Zsolt	f0515800e6	les: fix fetcher syncing logic (#18072)	6 years ago
Felföldi Zsolt	b7bbe66b19	les: limit state ODR retrievals to the last 100 blocks (#17744)	6 years ago
Felföldi Zsolt	51df1c1f20	les: add announcement safety check to light fetcher (#17034)	6 years ago
Péter Szilágyi	6cf0ab38bd	core/rawdb: separate raw database access to own package (#16666)	7 years ago
Felföldi Zsolt	1bdde620da	les: fix light fetcher database race (#16103) ... * les: fix light fetcher database race * les: lightFetcher comments	7 years ago
Péter Szilágyi	dfc5842a89	les: add missing lock around peer access	7 years ago
Evgeny Danilenko	0914d4e0d2	les: fix misuse of WaitGroup (#15365)	7 years ago
Felföldi Zsolt	a5d08c893d	les: code refactoring (#14416) ... This commit does various code refactorings: - generalizes and moves the request retrieval/timeout/resend logic out of LesOdr (will be used by a subsequent PR) - reworks the peer management logic so that all services can register with peerSet to get notified about added/dropped peers (also gets rid of the ugly getAllPeers callback in requestDistributor) - moves peerSet, LesOdr, requestDistributor and retrieveManager initialization out of ProtocolManager because I believe they do not really belong there and the whole init process was ugly and ad-hoc	8 years ago
Péter Szilágyi	158d603528	consensus, core: drop all the legacy custom core error types	8 years ago
Felföldi Zsolt	525116dbff	les: implement request distributor, fix blocking issues (#3660) ... * les: implement request distributor, fix blocking issues * core: moved header validation before chain mutex lock	8 years ago
Péter Szilágyi	e7030c4bf5	all: update light logs (and a few others) to the new model	8 years ago
Péter Szilágyi	d4fd06c3dc	all: blidly swap out glog to our log15, logs need rework	8 years ago
Felix Lange	35a7dcb162	all: gofmt -w -s	8 years ago
Zsolt Felfoldi	93f9c023cc	les: fixed selectPeer deadlock, improved request distribution ... les/flowcontrol: using proper types for relative and absolute times	8 years ago
Zsolt Felfoldi	f12f8a6c14	les, light: add block availability check for ODR requests	8 years ago
Zsolt Felfoldi	c8130df1d9	les: using random request IDs	8 years ago
Zsolt Felfoldi	af8a742d00	les: improved header fetcher and server statistics	8 years ago
Zsolt Felfoldi	e67500aa15	les: fixed light fetcher request ID matching	8 years ago
Felix Lange	b8bd9a71c8	all: update license information	8 years ago
Felix Lange	be3865211c	core/types: remove header accessors ... These accessors were introduced by light client changes, but the only method that is actually used is GetNumberU64. This commit replaces all uses of .GetNumberU64 with .Number.Uint64.	8 years ago
Zsolt Felfoldi	9f8d192991	les: light client protocol and API	8 years ago