Commit Graph

161 Commits

Author SHA1 Message Date
Robert Klotzner 25974f2076 Dispute spam protection (#4134)
* Mostly notes.

* Better error messages.

* Introduce Fatal/NonFatal + drop back channel participation

- Fatal/NonFatal - in order to make it easier to use utility functions.
- We drop the back channel in dispute participation as it won't be
needed any more.

* Better error messages.

* Utility function for receiving `CandidateEvent`s.

* Ordering module typechecks.

* cargo fmt

* Prepare spam slots module.

* Implement SpamSlots mechanism.

* Implement queues.

* cargo fmt

* Participation.

* Participation taking shape.

* Finish participation.

* cargo fmt

* Cleanup.

* WIP: Cleanup + Integration.

* Make `RollingSessionWindow` initialized by default.

* Make approval voting typecheck.

* Get rid of lazy_static & fix approval voting tests

* Move `SessionWindowSize` to node primitives.

* Implement dispute coordinator initialization.

* cargo fmt

* Make queues return error instead of boolean.

* Initialized: WIP

* Introduce chain api for getting finalized block.

* Fix ordering to only prune candidates on finalized events.

* Pruning of old sessions in spam slots.

* New import logic.

* Make everything typecheck.

* Fix warnings.

* Get rid of obsolete dispute-participation.

* Fixes.

* Add back accidentelly deleted Cargo.lock

* Deliver disputes in an ordered fashion.

* Add module docs for errors

* Use type synonym.

* hidden docs.

* Fix overseer tests.

* Ordering provider taking `CandidateReceipt`.

... To be kicked on one next commit.

* Fix ordering to use relay_parent

as included block is not unique per candidate.

* Add comment in ordering.rs.

* Take care of duplicate entries in queues.

* Better spam slots.

* Review remarks + docs.

* Fix db tests.

* Participation tests.

* Also scrape votes on first leaf for good measure.

* Make tests typecheck.

* Spelling.

* Only participate in actual disputes, not on every import.

* Don't account backing votes to spam slots.

* Fix more tests.

* Don't participate if we don't have keys.

* Fix tests, typos and warnings.

* Fix merge error.

* Spelling fixes.

* Add missing docs.

* Queue tests.

* More tests.

* Add metrics + don't short circuit import.

* Basic test for ordering provider.

* Import fix.

* Remove dead link.

* One more dead link.

Co-authored-by: Lldenaurois <Ljdenaurois@gmail.com>
2021-11-19 17:08:21 +00:00
Andronik Ordian 760d6804dc collator-protocol: do not connect to the next group (#4261)
* collator-protocol: do not connect to the next group

* fmt
2021-11-11 15:38:41 -06:00
Bernhard Schuster edac78d03c availability recovery type name clarifications (#4203)
* minor changes

* fmt

* rename to expressive types

* chore: fixup

* chore: remove `Data` prefixes

* address review comments

* guide items

* sourcer -> source, add `FromValdiators` suffix
2021-11-08 13:43:23 +00:00
Fabio Lama 8dbde1f419 Implementers guide: update Collation types (#4084)
* Implementers guide: update Collation types

* Update roadmap/implementers-guide/src/node/collators/collation-generation.md

Co-authored-by: Andronik Ordian <write@reusable.software>

* Update roadmap/implementers-guide/src/node/collators/collation-generation.md

Co-authored-by: Andronik Ordian <write@reusable.software>

* Update roadmap/implementers-guide/src/node/collators/collation-generation.md

Co-authored-by: Andronik Ordian <write@reusable.software>

* Update roadmap/implementers-guide/src/node/collators/collation-generation.md

Co-authored-by: Andronik Ordian <write@reusable.software>

* Convert indents to 2 spaces

Co-authored-by: Andronik Ordian <write@reusable.software>
2021-10-15 12:28:42 +02:00
Bernhard Schuster 30bdc8f5d4 collect included disputes from on-chain (#3924)
* dummy: impl another runtime API

* query the on chain disputes, and inform self

* make use of the refactor

* minro

* SPLIT ME

* write dispute values

* wip

* impl for all runtimes

* chore: fmt

* [] -> get

* fixup mock runtime

* fixup

* fixup discovery for overseer init

* chore: fmt

* spellcheck

* rename imported_on_chain_disputes -> on_chain_votes

* reduction

* make it mockable

* rename and refactor

* don't query on chain info if it's not needed

* yikes

* fmt

* fix test

* minimal fix for existing tests

* attempt to fetch the session info from the rolling window before falling back

* moved

* comments

* comments

* test for backing votes

* rename

* Update runtime/polkadot/src/lib.rs

* chore: spellcheck + dict

* chore: fmt

* fixup cache size

* add warning

* logging, rationale, less defense

* introduce new unchecked, that still checks in debug builds

* fix

* draft alt approach

* fix unused imports

* include the session

* Update node/core/dispute-coordinator/src/real/mod.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* provide where possible

* expand comment

* fixin

* fixup

* ValidityVote <-> ValidityAttestation <-> CompactStatement has a 1:1 representation

* mark TODO

* Update primitives/src/v1/mod.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* address review comments

* update docs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
2021-10-06 19:16:23 +00:00
Robert Habermeier 6002865874 Make candidate validation timeouts configurable (#4001)
* pvf: make execution timeout configurable

* guide: add timeouts to candidate validation params

* add timeouts to candidate validation messages

* fmt

* port backing to use the backing pvf timeout

* port approval-voting to use the execution timeout

* port dispute participation to use the correct timeout

* fmt

* address grumbles & test failure
2021-10-04 09:53:36 -05:00
Robert Habermeier 307a91f431 always broadcast tranche 0 assignments and add a delay before approval (#3904)
* always broadcast tranche 0 assignments

* guide: require fixed approval delay

* prevent approval by very recent assignments

* fix approval-checking tests

* fix main approval tests
2021-10-02 01:59:07 +02:00
Andronik Ordian 33fe763188 some fixes to please cargo-spellcheck (#3550)
* some fixes to please cargo-spellcheck

* some (not all) fixes for the impl guide

* fix
2021-08-02 11:00:04 +00:00
Denis Pisarev fc253e6e4d WIP: CI: add spellcheck (#3421)
* CI: add spellcheck

* revert me

* CI: explicit command for spellchecker

* spellcheck: edit misspells

* CI: run spellcheck on diff

* spellcheck: edits

* spellcheck: edit misspells

* spellcheck: add rules

* spellcheck: mv configs

* spellcheck: more edits

* spellcheck: chore

* spellcheck: one more thing

* spellcheck: and another one

* spellcheck: seems like it doesn't get to an end

* spellcheck: new words after rebase

* spellcheck: new words appearing out of nowhere

* chore

* review edits

* more review edits

* more edits

* wonky behavior

* wonky behavior 2

* wonky behavior 3

* change git behavior

* spellcheck: another bunch of new edits

* spellcheck: new words are koming out of nowhere

* CI: finding the master

* CI: fetching master implicitly

* CI: undebug

* new errors

* a bunch of new edits

* and some more

* Update node/core/approval-voting/src/approval_db/v1/mod.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* Update xcm/xcm-executor/src/assets.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* Apply suggestions from code review

Co-authored-by: Andronik Ordian <write@reusable.software>

* Suggestions from the code review

* CI: scan only changed files

Co-authored-by: Andronik Ordian <write@reusable.software>
2021-07-14 19:22:58 +02:00
Lldenaurois 2d66b8f256 Dispute Coordinator: Batch queries (#3459)
* disputes: Allow batch queries in dispute-coordinator

This commit moves to batch queries when responding to QueryCandidateVotes
messages. This simplifies the code in the provisioner and dispute-coordinator
by no longer requiring to make use of a FuturesOrdered when awaiting multiple
quries. Instead, the provisioner need only request the batch itself.

* node/approval-voting: Address Feedback to fail on query element missing.

* Address feedback

* Fix implementer's guide
2021-07-12 20:06:14 -05:00
Robert Habermeier e512222749 Wire up candidate backing, approval-voting to disputes (#3348)
* add a from_backing_statement to SignedDisputeStatement

* inform dispute coordinator of all backing statements

* add dispute coordinator message to backing tests

* send positive dispute statement with every approval

* issue disputes when encountering invalid candidates.

* try to fix flaky test for CI (passed locally)

* guide: keep track of concluded-positive disputes until pruned

* guide: block implications

* guide: new dispute inherent flow

* mostly implement recency changes for dispute coordinator

* add a clock to dispute coordinator

* adjust DB tests

* fix and add new dispute coordinator tests

* provisioner: select disputes

* import all validators' approvals

* address nit: refactor backing statement submission

* gracefully handle disconnected dispute coordinator

* remove `review` comment

* fix up old_tests

* fix approval-voting compilation

* fix backing compilation

* use known-leaves in WaitForActivation

* follow-up test fixing

* add back allow(dead_code)
2021-07-09 21:15:51 +00:00
Robert Klotzner 20993b32b1 Guide updates for disputes. (#3401)
* Guide updates for disputes.

* Working availability recovery flood protection.

* More fixes.

* Formatting.

* Fix.

* Update roadmap/implementers-guide/src/node/disputes/dispute-participation.md

Co-authored-by: Sergei Shulepov <sergei@parity.io>

* Review remarks.

Co-authored-by: Sergei Shulepov <sergei@parity.io>
2021-07-08 23:19:08 +02:00
Bastian Köcher 2ea1587e8d Only send one collation per relay parent at a time to validators (#3360)
* Only send one collation per relay parent at a time to validators

This changes the way we are sending collations to validators. Before we
answered every collation request immediatley. Now we only answer one
pov request at a time per relay parent. This should bring down the
bandwidth requirements and should help parachains to include bigger
blocks more easily.

* Guide updates

* Review feedback.
2021-06-28 11:07:44 +00:00
Squirrel dcb08fd533 Use associated constant for max (#3375) 2021-06-28 11:32:33 +02:00
Andronik Ordian 3827f6e6f8 av-store: use determine_new_blocks (#3356)
* av-store: use determine_new_blocks

* fix tests

* update the guide

* rename KnownBlocks

* fix iteration order

* add a test
2021-06-23 23:26:33 +02:00
Robert Klotzner e3340e44b5 Dispute distribution guide (#3158)
* Dispute distribution initial design.

* WIP.

* Dispute distribution guide update.

* Make invalid statement include `InvalidStatementKind`.

* Clarify the scope of disputes.

* A few fixes + introduced back pressure oneshot.

* Fixes and spam protection WIP.

* More spam considerations.

* More fixes.

* Fixes + add note about not dispute participating nodes.
2021-06-22 18:23:53 -05:00
Robert Habermeier b70da7bff7 Block weight ChainAPI (#3301)
* guide: ChainApiMessage::BlockWeight

* node: BlockWeight ChainAPI

* fix compile issue

* implement ChainApi::BlockWeight

* add test for ChainApi::BlockWeight

* update substrate

Co-authored-by: André Silva <andrerfosilva@gmail.com>
2021-06-19 19:19:07 +02:00
Andronik Ordian ad9c02886d improved gossip topology (#3270)
* gossip-support: gossip topology

* some fixes

* handle view update for newly added gossip peers

* fix neighbors calculation

* fix test

* resolve TODOs

* typo

* guide updates

* spaces in the guide

* sneaky spaces

* hash randomness

* address some review nits

* use unbounded in bridge for subsystem msg
2021-06-18 14:30:35 -05:00
Robert Habermeier 9c7a346e4c Implementers' Guide: Chain Selection (#3262)
* high-level discussion of fork-choice and chain selection

* notes on chain-selection subsystem

* send `Approve` messages from approval-voting

* remove references to candidate-selection

* adjust grandpa voting rule docs

* Update roadmap/implementers-guide/src/node/grandpa-voting-rule.md

Co-authored-by: Lldenaurois <ljdenaurois@gmail.com>

* Update roadmap/implementers-guide/src/protocol-chain-selection.md

Co-authored-by: Lldenaurois <ljdenaurois@gmail.com>

* Update roadmap/implementers-guide/src/protocol-chain-selection.md

Co-authored-by: Lldenaurois <ljdenaurois@gmail.com>

Co-authored-by: Lldenaurois <ljdenaurois@gmail.com>
2021-06-17 15:10:23 +00:00
André Silva d8d61bad36 implement dispute participation subsystem (#3234)
* implement dispute participation subsystem

* guide: minor fix in dispute participation

* Update node/core/dispute-participation/src/lib.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* dispute: add comments to participation logic

* dispute-coordinator: fix test compilation

* implementers-guide: update dispute participation

* dispute-participation: add error for missing validation code

* dispute-participation: add tests

* Update node/core/dispute-participation/src/lib.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* guide: update overseer protocol dispute participation message

* dispute-participation: remove duplication in tests

Co-authored-by: Andronik Ordian <write@reusable.software>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
2021-06-14 15:41:02 -05:00
Robert Habermeier 5bc2b2779d Dispute Coordinator Subsystem (#3150)
* skeleton for dispute-coordinator

* add coordinator and participation message types

* begin dispute-coordinator DB

* functions for loading

* implement strongly-typed DB transaction

* add some tests for DB transaction

* core logic for pruning

* guide: update candidate-votes key for coordinator

* update candidate-votes key

* use big-endian encoding for session, and implement upper bound generator

* finish implementing pruning

* add a test for note_current_session

* define state of the subsystem itself

* barebones subsystem definition

* control flow

* more control flow

* implement session-updating logic

* trace

* control flow for message handling

* Update node/core/dispute-coordinator/src/lib.rs

Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>

* Update node/subsystem/src/messages.rs

Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>

* some more control flow

* guide: remove overlay

* more control flow

* implement some DB getters

* make progress on importing statements

* add SignedDisputeStatement struct

* move ApprovalVote to shared primitives

* add a signing-payload API to explicit dispute statements

* add signing-payload to CompactStatement

* add relay-parent hash to seconded/valid dispute variatns

* correct import

* type-safe wrapper around dispute statements

* use checked dispute statement in message type

* extract rolling session window cache to subsystem-util

* extract session window tests

* approval-voting: use rolling session info cache

* reduce dispute window to match runtime in practice

* add byzantine_threshold and supermajority_threshold utilities to primitives

* integrate rolling session window

* Add PartialOrd to CandidateHash

* add Ord to CandidateHash

* implement active dispute update

* add dispute messages to AllMessages

* add dispute stubs to overseer

* inform dispute participation to participate

* implement issue_local_statement

* implement `determine_undisputed_chain`

* fix warnings

* test harness for dispute coordinator tests

* add more helpers to test harness

* add some more helpers

* some tests for dispute coordinator

* ignore wrong validator indices

* test finality voting rule constraint

* add more tests

* add variants to network bridge

* fix test compilation

* remove most dispute coordinator functionality

as of #3222 we can do most of the work within the approval voting subsystem

* Revert "remove most dispute coordinator functionality"

This reverts commit 9cd615e8eb6ca0b382cbaff525d813e753d6004e.

* Use thiserror

Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>

* Update node/core/dispute-coordinator/src/lib.rs

Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>

* extract tests to separate module

* address nit

* adjust run_iteration API

Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>
2021-06-13 06:35:18 -05:00
André Silva 8c3bc2b2bb replace HistoricalValidationCode usages with ValidationCodeByHash (#3210)
* replace HistoricalValidationCode usages with ValidationCodeByHash

* runtime-api: tabify tests file

* update implementers guide
2021-06-11 18:00:57 +00:00
Lldenaurois 2abaca3a8c Remove candidate selection (#3148)
* Create validator_side module

* Subsume Candidate Selection

* Add test to ensure candidate backing logic is correct

* Ensure secondings are adequately cleaned up and address test flakyness

* Address Feedback
2021-06-08 14:07:19 -04:00
Andronik Ordian ab018944a9 approval-distribution: send all messages on unify (#3179)
* approval-distribution: send all messages on unify

* update the guide
2021-06-04 12:20:53 -05:00
Robert Habermeier 963993d288 Reversion Safety tools for overseer and subsystems (#3104)
* guide: reversion safety

* guide: manage reversion safety in subsystems

* add leaf status to ActivatedLeaf

* add an LRU-cache to overseer for staleness detection

* update ActivatedLeaf usages in tests to contain status field

* add variant where missed accidentally

* add some helpers to LeafStatus

* address grumbles
2021-05-31 20:54:05 +02:00
Robert Klotzner 6663081bbd Guide updates for changed statement distribution (#2986)
* Guide updates WIP

* Add note.

* Statement distribution guide update.

* Small fixes.
2021-05-06 14:58:38 +02:00
Bastian Köcher 7830bae524 Companion for Substrate#8526 (#2845)
* Update branch

* Make it compile

* Compile

* gate approval-checking logic (#2470)

* Fix build

* Updates

* Fix merge

* Adds missing crate

* Companion for Substrate#8386

https://github.com/paritytech/substrate/pull/8386

* Fix fix fix

* Fix

* Fix compilation

* Rewrite to `ParachainsInherentDataProvider`

* Make it compile

* Renamings

* Revert stuff

* Remove stale file

* Guide updates

* Update node/core/parachains-inherent/src/lib.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* Update node/core/parachains-inherent/src/lib.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* Apply suggestions from code review

* Reset accidental changes

* More

* Remove stale file

* update Substrate

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
Co-authored-by: Andronik Ordian <write@reusable.software>
Co-authored-by: parity-processbot <>
2021-05-03 15:21:13 +00:00
Andronik Ordian e62939ad7a distribution: handle sqrt peer view updates (#2871)
* distribution: handle sqrt peer view updates

* someone please put rustc into my brain

* guide updates
2021-04-10 00:45:25 +02:00
Robert Habermeier 11b8e4c821 Collation protocol: stricter validators (#2810)
* guide: declare one para as a collator

* add ParaId to Declare messages and clean up

* fix build

* fix the testerinos

* begin adding keystore to collator-protocol

* remove request_x_ctx

* add core_for_group

* add bump_rotation

* add some more helpers to subsystem-util

* change signing_key API to take ref

* determine current and next para assignments

* disconnect collators who are not on current or next para

* add collator peer count metric

* notes for later

* some fixes

* add data & keystore to test state

* add a test utility for answering runtime API requests

* fix existing collator tests

* add new tests

* remove sc_keystore

* update cargo lock

Co-authored-by: Andronik Ordian <write@reusable.software>
2021-04-03 21:48:58 +02:00
Andronik Ordian 94b0ccc8f1 approval-distribution: split peer knowledge into sent and received (#2809)
* approval-distribution: split peer knowledge into sent and received

* guide updates

* fixes

* revert doc changes
2021-04-03 04:29:15 +02:00
Robert Habermeier 57b56770e0 Approval Voting improvements (#2781)
* extract database from av-store itself

* generalize approval-voting over database type

* modes (without handling) and pruning old wakeups

* rework approval importing

* add our_approval_sig to ApprovalEntry

* import assignment

* guide updates for check-full-approval changes

* some aux functions

* send messages when becoming active.

* guide: network bridge sends view updates only when done syncing

* network bridge: send view updates only when done syncing

* tests for new network-bridge behavior

* add a test for updating approval entry with sig

* fix some warnings

* test load-all-blocks

* instantiate new parachains DB

* fix network-bridge empty view updates

* tweak

* fix wasm build, i think

* Update node/core/approval-voting/src/lib.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* add some versioning to parachains_db

* warnings

* fix merge changes

* remove versioning again

Co-authored-by: Andronik Ordian <write@reusable.software>
2021-04-01 17:33:52 +00:00
Andronik Ordian 7a2e1ef6c1 gossip: do not try to connect if we are not validators (#2786)
* gossip: do not issue a connection request if we are not a validator

* guide updates

* use all relevant authorities when issuing a request

* use AuthorityDiscoveryApi instead

* update comments to the status quo
2021-04-01 18:11:43 +02:00
Robert Habermeier 5da762e728 Avoid querying the local validator in availability recovery (#2792)
* guide: don't request availability data from ourselves

* add QueryAllChunks message

* implement QueryAllChunks

* remove unused relay_parent from StoreChunk

* test QueryAllChunks

* fast paths make short roads

* test early exit behavior
2021-04-01 15:57:41 +02:00
Robert Habermeier ccfabaa0c6 Node-side subsystems for Disputes (#2566)
* dispute subsystem files

* rename

* fix linkcheck

* flesh out section README

* coordinator schema

* DisputeCoordinatorMessage

* stub & coordinator protocol

* dispute coordinator

* add some more message fields

* move links to bottom

* dispute participation

* Cleen It Up !

* runtime: store candidate receipts in dispute state

yeah, this is a little heavier. why are you reading this?

* Revert "runtime: store candidate receipts in dispute state"

This reverts commit 51c10bfd4d866e287e6bd88f317ed57ed987eaee.

* add dispute availability statement type and prepare for availability

* add 'spam slots' to disputes runtmie

* return Spam Slots info from runtime

* rework `ImportStatement` to `ImportStatements`

* some more methods for dispute coordinator

* candidates-included runtime API

* algo for providing disputes to runtime.

* handle signing with coordinator

* dispute coordinator chain ops

* remove dead file

* remove keystore from dispute participation

* adjust ApprovedAncestor to return the necssary data

* discuss how approved ancestor and determine undisputed chain are used together

* add TODO

* initiate disputes from approval voting

* route statements from candidate backing and approval voting

* fix guide build
2021-04-01 03:00:46 +02:00
Robert Habermeier e65cad69ec Fix future-polling loop in availability and add a better early-exit (#2779)
* onto the front

* fix early exit for waiting for requests

* add logging back
2021-03-31 17:35:17 +02:00
Robert Habermeier 08d5b268a0 Retry availability until the receiver of the request is dropped (#2763)
* guide updates

* keep interactions alive until receivers drop

* retry indefinitely

* cancel approval tasks on finality

* use swap_remove instead of remove
2021-03-30 17:33:38 +02:00
Andronik Ordian 6f464a360f approval-distribution: limit the amount of assignments on unify (#2737)
* approval-distribution: limit the amount of packets on unify

* guide: fix a typo

* compilation fix

* grammar

* Update roadmap/implementers-guide/src/node/approval/approval-distribution.md

Co-authored-by: David <dvdplm@gmail.com>

* more grammar

* propagate only local assignments/approvals after a certain depth

* increase the threshold

* guides update

Co-authored-by: David <dvdplm@gmail.com>
2021-03-28 23:30:06 +02:00
Robert Klotzner c6f07d8f31 Request based PoV distribution (#2640)
* Indentation fix.

* Prepare request-response for PoV fetching.

* Drop old PoV distribution.

* WIP: Fetch PoV directly from backing.

* Backing compiles.

* Runtime access and connection management for PoV distribution.

* Get rid of seemingly dead code.

* Implement PoV fetching.

Backing does not yet use it.

* Don't send `ConnectToValidators` for empty list.

* Even better - no need to check over and over again.

* PoV fetching implemented.

+ Typechecks
+ Should work

Missing:

- Guide
- Tests
- Do fallback fetching in case fetching from seconding validator fails.

* Check PoV hash upon reception.

* Implement retry of PoV fetching in backing.

* Avoid pointless validation spawning.

* Add jaeger span to pov requesting.

* Add back tracing.

* Review remarks.

* Whitespace.

* Whitespace again.

* Cleanup + fix tests.

* Log to log target in overseer.

* Fix more tests.

* Don't fail if group cannot be found.

* Simple test for PoV fetcher.

* Handle missing group membership better.

* Add test for retry functionality.

* Fix flaky test.

* Spaces again.

* Guide updates.

* Spaces.
2021-03-28 17:11:38 +02:00
Robert Habermeier 8a396c678f Port availability recovery to use req/res (#2694)
* add AvailableDataFetchingRequest

* rename AvailabilityFetchingRequest to ChunkFetchingRequest

* rename AvailabilityFetchingResponse to Chunk_

* add AvailableDataFetching request

* add available data fetching request to availability recovery message

* remove availability recovery message

* fix

* update network bridge

* port availability recovery to request/response

* use validators.len(), not shuffling

* fix availability recovery tests

* update guide

* Update node/network/availability-recovery/src/lib.rs

Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>

* Update node/network/availability-recovery/src/lib.rs

Co-authored-by: Arkadiy Paronyan <arkady.paronyan@gmail.com>

* remove println

Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>
Co-authored-by: Arkadiy Paronyan <arkady.paronyan@gmail.com>
2021-03-25 15:34:24 +01:00
Robert Habermeier 349879df6b f+1 validators always approve (#2699)
* f+1 always approves

* guide

* grumbles

* grumbles

* fix test

* fix tests

* Update roadmap/implementers-guide/src/node/approval/approval-voting.md

Co-authored-by: Sergei Shulepov <sergei@parity.io>

Co-authored-by: Sergei Shulepov <sergei@parity.io>
2021-03-25 13:47:00 +01:00
Robert Habermeier b8867d71bc Evict inactive peers from the collator protocol peer-set (#2680)
* malicious reputation cost is fatal

* make ReportBad a malicious cost

* futures control-flow for cleaning up inactive collator peers

* guide: network bridge updates

* add `PeerDisconnected` message

* guide: update

* reverse order

* remember to match

* implement disconnect peer in network bridge

* implement disconnect_inactive_peers

* test

* remove println

* don't hardcore policy

* add fuse outside of loop

* use default eviction policy
2021-03-24 13:32:28 +01:00
Robert Klotzner 503e2b74f9 Request based collation fetching (#2621)
* Introduce collation fetching protocol

also move to mod.rs

* Allow `PeerId`s in requests to network bridge.

* Fix availability distribution tests.

* Move CompressedPoV to primitives.

* Request based collator protocol: validator side

- Missing: tests
- Collator side
- don't connect, if not connected

* Fixes.

* Basic request based collator side.

* Minor fix on collator side.

* Don't connect in requests in collation protocol.

Also some cleanup.

* Fix PoV distribution

* Bump substrate

* Add back metrics + whitespace fixes.

* Add back missing spans.

* More cleanup.

* Guide update.

* Fix tests

* Handle results in tests.

* Fix weird compilation issue.

* Add missing )

* Get rid of dead code.

* Get rid of redundant import.

* Fix runtime build.

* Cleanup.

* Fix wasm build.

* Format fixes.

Thanks @andronik !
2021-03-18 09:06:36 +01:00
Robert Klotzner b6a78d2976 Mostly, let guide reflect #2579 (#2583)
* Statement distribution is now validator only.

* Avoid Arc creation where it is not necessarily needed.
2021-03-09 01:46:24 +01:00
Robert Klotzner 95f1b09b65 Fix links in docs. (#2556) 2021-03-04 13:58:56 +00:00
Robert Klotzner 8206a77164 Guide update for availability distribution. (#2554)
* Guide update for availability distribution.

* Link fix.

* Hopefully fixed implementers guide build.
2021-03-03 09:54:27 -06:00
Robert Habermeier 3300b53306 Approval Checking Improvements Omnibus (#2480)
* add tracing to approval voting

* notify if session info is not working

* add dispute period to chain specs

* propagate genesis session to parachains runtime

* use `on_genesis_session`

* protect against zero cores in computation

* tweak voting rule to be based off of best and add logs

* genesis configuration should use VRF slots only

* swallow more keystore errors

* add some docs

* make validation-worker args non-optional and update clap

* better tracing for bitfield signing and provisioner

* pass amount of bits in bitfields to inclusion instead of recomputing

* debug -> warn for some logs

* better tracing for availability recovery

* a little av-store tracing

* bridge: forward availability recovery messages

* add missing try_from impl

* some more tracing

* improve approval distribution tracing

* guide: hold onto pending approval messages until NewBlocks

* Hold onto pending approval messages until NewBlocks

* guide: adjust comment

* process all actions for one wakeup at a time

* vec

* fix network bridge test

* replace randomness-collective-flip with Babe

* remove PairNotFound
2021-02-23 14:12:28 -06:00
Robert Habermeier b7aac51341 A fast-path for requesting AvailableData from backing validators (#2453)
* guide changes for a fast-path requesting from backing validators

* add backing group to availability recovery message

* add new phase to interaction

* typos

* add full data messages

* handle new network messages

* dispatch full data requests

* cleanup

* check chunk index

* test for invalid recovery

* tests

* Typos.

* fix some grumbles

* be more explicit about error handling and control flow

* fast-path param

* use with_chunks_only in Service

Co-authored-by: Robert Klotzner <robert.klotzner@gmx.at>
2021-02-17 13:51:50 -06:00
Robert Habermeier 59e2a810bb remove unused RequestBlockAuthorshipData (#2455) 2021-02-17 11:54:51 -06:00
Robert Habermeier 9e525e296d Allow at most one candidate with a code upgrade in a block (#2456)
* guide: max one candidate with upgrade per block

* max one candidate with upgrade per block

* ignore on runtime level too
2021-02-17 10:42:06 -06:00
Robert Habermeier a8d3aca13d Disputes High-level rewrite & Disputes runtime (#2424)
* REVERT: comment out graphviz

* rewrite most of protocol-disputes

* write about conclusion and  chain selection

* tie back in overview

* basic disputes module

* guide: InclusionInherent -> ParaInherent

* language

* add ParaInherentData type

* plug parainherentdata into provisioner

* provide_multi_dispute

* tweak

* inclusion pipeline logic for disputes

* be clearer about signature checking

* reject backing of disputed blocks

* some type rejigging

* known-disputes runtime API

* wire up inclusion

* Revert "REVERT: comment out graphviz"

This reverts commit 66203e362f7872cb413d258f74634a0aad70302b.

* timeouts

* include in initialization order

* address grumbles
2021-02-16 18:50:14 +00:00