Commit Graph

119 Commits

Author SHA1 Message Date
Tsvetomir Dimitrov 12ed68270e Update dispute-coordinator documentation (#4975)
Include changes made in #4134 and #4854

Fixes #4397
2022-03-01 14:24:19 +01:00
Andronik 9d9f82256e approval-distribution: a fix for out-of-view messages (#4908)
* approval-distribution: a fix for out-of-view messages

* approval-distribution: trace logs

* adjust the guide slightly

* comments and nits
2022-02-22 15:02:03 +00:00
Sergei Shulepov 99dda4014c impl guide: Describe the PVF check subsystem (#4685)
closes #4611
2022-01-13 14:33:22 +01:00
Sergei Shulepov 1394b70d49 pvf-precheck: update implementers' guide (#4612)
This commit incorporates the changes made to the runtime in the
following PRs:

- https://github.com/paritytech/polkadot/pull/4408
- https://github.com/paritytech/polkadot/pull/4457
- https://github.com/paritytech/polkadot/pull/4540
- https://github.com/paritytech/polkadot/pull/4542
- https://github.com/paritytech/polkadot/pull/4581

Note that this PR does not include the description of the PVF
pre-checker subsystem. This should be addressed within
https://github.com/paritytech/polkadot/issues/4611

Co-authored-by: sandreim <54316454+sandreim@users.noreply.github.com>
2021-12-29 14:32:08 +01:00
Robert Klotzner 846828f61c First step in implementing #4386 (#4437)
* First step in implementing https://github.com/paritytech/polkadot/issues/4386

This PR:

- Reduces MAX_UNSHARED_UPLOAD_TIME to 150ms
- Increases timeout on collation fetching to 1200ms
- Reduces limit on needed backing votes in the runtime

This PR does not yet reduce the number of needed backing votes on the
node as this can only be meaningfully enacted once the changed limit in
the runtime is live.

* Fix tests.

* Guide updates.

* Review remarks.

* Bump minimum required backing votes to 2 in runtime.

* Make sure node side code won't make runtime vomit.

* cargo +nightly fmt
2021-12-23 16:41:34 +00:00
Robert Klotzner bd5721fbf5 Revert loop prevention (#4472)
* Provisioner: Only include and sign bitfields on fresh leaves.
2021-12-13 12:20:49 +01:00
Lldenaurois 2243121401 Revert "remove provisioner checks (#4254)" (#4375)
* Revert "remove provisioner checks (#4254)"

This reverts commit d5d916a915.

* Remove TODO in implementer's guide
2021-11-30 11:01:55 +00:00
Bernhard Schuster d5d916a915 remove provisioner checks (#4254)
* chore/provisioner: move metrics to a separate module

* avoid the duplicate names

* reduce all checks

* fixup tests

* Update node/core/provisioner/src/lib.rs

Co-authored-by: Zeke Mostov <z.mostov@gmail.com>

* chore: fmt

* chore: spellcheck

* doc

* remove the enum anti-pattern

* guide update - remove all the responsibilities

* add another trivial check

* Update node/core/provisioner/src/metrics.rs

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

* Update roadmap/implementers-guide/src/node/utility/provisioner.md

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

* Update node/core/provisioner/src/metrics.rs

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

Co-authored-by: Zeke Mostov <z.mostov@gmail.com>
Co-authored-by: Andronik Ordian <write@reusable.software>
2021-11-19 18:15:59 +00:00
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