* Use a `BoundedVec` in `ValidationResult`
> Use a `BoundedVec` for `upward_messages` and `horizontal_messages` in order to
> limit the number of individual messages/memory allocations right at decoding
> time. The reason for this is that the `ValidationResult` may contain a code
> upgrade (including a full PVF binary), so the total size limit can't be set
> too low and this limit will still allow several millions of upward messages,
> which will (due to the memory allocator overhead) already have a
> non-negligible memory footprint in decoded form.
* List all fields when hashing so we don't miss one
* Define types for `BoundedVec`s of messages
* Fix test compile errors
* Depend on `bounded-collections` 0.1.4 (fixes allocation issue)
* Fix compilation issue
* Derive `Hash` instead of manual `impl`
* Avoid use of unwrap
* Re-apply changes without Diener, rebase to the lastest master
* Cache pruning
* Bit-pack InstantiationStrategy
* Move ExecutorParams version inside the structure itself
* Rework runtime API and executor parameters storage
* Pass executor parameters through backing subsystem
* Update Cargo.lock
* Introduce `ExecutorParams` to approval voting subsys
* Introduce `ExecutorParams` to dispute coordinator
* `cargo fmt`
* Simplify requests from backing subsys
* Fix tests
* Replace manual config cloning with `.clone()`
* Move constants to module
* Parametrize executor performing PVF pre-check
* Fix Malus
* Fix test runtime
* Introduce session executor params as a constant defined by session info
pallet
* Use Parity SCALE codec instead of hand-crafted binary encoding
* Get rid of constants; Add docs
* Get rid of constants
* Minor typo
* Fix Malus after rebase
* `cargo fmt`
* Use transparent SCALE encoding instead of explicit
* Clean up
* Get rid of relay parent to session index mapping
* Join environment type and version in a single enum element
* Use default execution parameters if running an old runtime
* `unwrap()` -> `expect()`
* Correct API version
* Constants are back in town
* Use constants for execution environment types
* Artifact separation, first try
* Get rid of explicit version
* PVF execution queue worker separation
* Worker handshake
* Global renaming
* Minor fixes resolving discussions
* Two-stage requesting of executor params to make use of runtime API cache
* Proper error handling in pvf-checker
* Executor params storage bootstrapping
* Propagate migration to v3 network runtimes
* Fix storage versioning
* Ensure `ExecutorParams` serialization determinism; Add comments
* Rename constants to make things a bit more deterministic
Get rid of stale code
* Tidy up a structure of active PVFs
* Minor formatting
* Fix comment
* Add try-runtime hooks
* Add storage version write on upgrade
Co-authored-by: Andronik <write@reusable.software>
* Add pre- and post-upgrade assertions
* Require to specify environment type; Remove redundant `impl`s
* Add `ExecutorParamHash` creation from `H256`
* Fix candidate validation subsys tests
* Return splittable error from executor params request fn
* Revert "Return splittable error from executor params request fn"
This reverts commit a0b274177d8bb2f6e13c066741892ecd2e72a456.
* Decompose approval voting metrics
* Use more relevant errors
* Minor formatting fix
* Assert a valid environment type instead of checking
* Fix `try-runtime` hooks
* After-merge fixes
* Add migration logs
* Remove dead code
* Fix tests
* Fix tests
* Back to the strongly typed implementation
* Promote strong types to executor interface
* Remove stale comment
* Move executor params to `SessionInfo`: primitives and runtime
* Move executor params to `SessionInfo`: node
* Try to bump primitives and API version
* Get rid of `MallocSizeOf`
* Bump target API version to v4
* Make use of session index already in place
* Back to v3
* Fix all the tests
* Add migrations to all the runtimes
* Make use of existing `SessionInfo` in approval voting subsys
* Rename `TARGET` -> `LOG_TARGET`
* Bump all the primitives to v3
* Fix Rococo ParachainHost API version
* Use `RollingSessionWindow` to acquire `ExecutorParams` in disputes
* Fix nits from discussions; add comments
* Re-evaluate queue logic
* Rework job assignment in execution queue
* Add documentation
* Use `RuntimeInfo` to obtain `SessionInfo` (with blackjack and caching)
* Couple `Pvf` with `ExecutorParams` wherever possible
* Put members of `PvfWithExecutorParams` under `Arc` for cheap cloning
* Fix comment
* Fix CI tests
* Fix clippy warnings
* Address nits from discussions
* Add a placeholder for raw data
* Fix non exhaustive match
* Remove redundant reexports and fix imports
* Keep only necessary semantic features, as discussed
* Rework `RuntimeInfo` to support mock implementation for tests
* Remove unneeded bound
* `cargo fmt`
* Revert "Remove unneeded bound"
This reverts commit 932463f26b00ce290e1e61848eb9328632ef8a61.
* Fix PVF host tests
* Fix PVF checker tests
* Fix overseer declarations
* Simplify tests
* `MAX_KEEP_WAITING` timeout based on `BACKGING_EXECUTION_TIMEOUT`
* Add a unit test for varying executor parameters
* Minor fixes from discussions
* Add prechecking max. memory parameter (see paritytech/srlabs_findings#110)
* Fix and improve a test
* Remove `ExecutionEnvironment` and `RawData`
* New primitives versioning in parachain host API
* `disputes()` implementation for Kusama and Polkadot
* Move `ExecutorParams` from `vstaging` to stable primitives
* Move disputes from `vstaging` to stable implementation
* Fix `try-runtime`
* Fixes after merge
* Move `ExecutorParams` to the bottom of `SessionInfo`
* Revert "Move executor params to `SessionInfo`: primitives and runtime"
This reverts commit dfcfb85fefd1c5be6c8a8f72dc09fd1809cfa9ce.
* Always use fresh activated live hash in pvf precheck
(re-apply 34b09a4c20de17e7926ed942cd0d657d18f743fa)
* Fixing tests (broken commit)
* Fix candidate validation tests
* Fix PVF host test
* Minor fixes
* Address discussions
* Restore migration
* Fix `use` to only include what is needed instead of `*`
* Add comment to never touch `DEFAULT_CONFIG`
* Update migration to set default `ExecutorParams` for `dispute_period`
sessions back
* Use `earliest_stored_session` instead of calculations
* Nit
* Add logs
* Treat any runtime error as `NotSupported` again
* Always return default executor params if not available
* Revert "Always return default executor params if not available"
This reverts commit b58ac4482ef444c67a9852d5776550d08e312f30.
* Add paritytech/substrate#9997 workaround
* `cargo fmt`
* Remove migration (again!)
* Bump executor params to API v4 (backport from #6698)
---------
Co-authored-by: Andronik <write@reusable.software>
* disputes/slashing: slash only backers for ForInvalid
* add an assertion in mock impl
* fix tests
* do not slash backers on onconcluded disputes
* slash an intersection of backers and losers
* zombienet/disputes: check for offence only for invalid disputes
* add backing votes to disputes bench builder
* Update runtime/parachains/src/builder.rs
* Brad implementers guide revisions 2 (#6239)
* Add disputes subsystems fix
* Updated dispute approval vote import reasoning
* Improved wording of my changes
* Resolving issues brought up in comments
* Update disputes prioritisation in `dispute-coordinator` (#6130)
* Scraper processes CandidateBacked events
* Change definition of best-effort
* Fix `dispute-coordinator` tests
* Unit test for dispute filtering
* Clarification comment
* Add tests
* Fix logic
If a dispute is not backed, not included and not confirmed we
don't participate but we do import votes.
* Add metrics for refrained participations
* Revert "Add tests"
This reverts commit 7b8391a087922ced942cde9cd2b50ff3f633efc0.
* Revert "Unit test for dispute filtering"
This reverts commit 92ba5fe678214ab360306313a33c781338e600a0.
* fix dispute-coordinator tests
* Fix scraping
* new tests
* Small fixes in guide
* Apply suggestions from code review
Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>
* Fix some comments and remove a pointless test
* Code review feedback
* Clarification comment in tests
* Some tests
* Reference counted `CandidateHash` in scraper
* Proper handling for Backed and Included candidates in scraper
Backed candidates which are not included should be kept for a
predetermined window of finalized blocks. E.g. if a candidate is backed
but not included in block 2, and the window size is 2, the same
candidate should be cleaned after block 4 is finalized.
Add reference counting for candidates in scraper. A candidate can be
added on multiple block heights so we have to make sure we don't clean
it prematurely from the scraper.
Add tests.
* Update comments in tests
* Guide update
* Fix cleanup logic for `backed_candidates_by_block_number`
* Simplify cleanup
* Make spellcheck happy
* Update tests
* Extract candidate backing logic in separate struct
* Code review feedback
* Treat backed and included candidates in the same fashion
* Update some comments
* Small improvements in test
* spell check
* Fix some more comments
* clean -> prune
* Code review feedback
* Reword comment
* spelling
Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>
* approval-voting: remove redundant validation check (#6266)
* approval-voting: remove a redundant check
* candidate-validation: remove unreachable check
* remove fill_block (#6200)
Co-authored-by: parity-processbot <>
* fix a compilation warning (#6279)
Fixes#6277.
* Only report concluded if there is an actual dispute. (#6270)
* Only report concluded if there is an actual dispute.
Hence no "non"-disputes will be added to disputes anymore.
* Fix redundant check.
* Test for no onesided disputes.
Co-authored-by: eskimor <eskimor@no-such-url.com>
* [ci] fix buildah image (#6281)
* Revert special casing of Kusama for grandpa rounds. (#6217)
Co-authored-by: eskimor <eskimor@no-such-url.com>
* Fixes "for loop over an `Option`" warnings (#6291)
Was seeing these warnings when running `cargo check --all`:
```
warning: for loop over an `Option`. This is more readably written as an `if let` statement
--> node/core/approval-voting/src/lib.rs:1147:21
|
1147 | for activated in update.activated {
| ^^^^^^^^^^^^^^^^
|
= note: `#[warn(for_loops_over_fallibles)]` on by default
help: to check pattern in a loop use `while let`
|
1147 | while let Some(activated) = update.activated {
| ~~~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
|
1147 | if let Some(activated) = update.activated {
| ~~~~~~~~~~~~ ~~~
```
My guess is that `activated` used to be a SmallVec or similar, as is
`deactivated`. It was changed to an `Option`, the `for` still compiled (it's
technically correct, just weird), and the compiler didn't catch it until now.
* companion for #12599 (#6290)
* companion for #12599
* update Cargo.lock
* use cargo path instead of diener
* update lockfile for {"substrate"}
Co-authored-by: parity-processbot <>
* remove the runtime check and test
* append keys on past-session slashing
* runtime/disputes: allow importing backing votes after explicit for
* explicit MaliciousBacker error and a test
* update an outdated comment
* Revert "update an outdated comment"
This reverts commit 7c4c3f5a848f16e2b61435e981d814f00333ed41.
* Revert "remove the runtime check and test"
This reverts commit a5bff0c75e77effb5b7d3a1691de1b14bcdbd648.
* incremental punishment post conclusion + test
* punish backers post FOR vote
* remove unnecessary lifetime annotation
* add a comment to zombinet test
* typo
* fmt
* post merge test fixes
* fix test after changes in master
* address review nits
---------
Co-authored-by: Bradley Olson <34992650+BradleyOlson64@users.noreply.github.com>
Co-authored-by: Tsvetomir Dimitrov <tsvetomir@parity.io>
Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>
Co-authored-by: Sergej Sakac <73715684+Szegoo@users.noreply.github.com>
Co-authored-by: eskimor <eskimor@users.noreply.github.com>
Co-authored-by: eskimor <eskimor@no-such-url.com>
Co-authored-by: Alexander Samusev <41779041+alvicsam@users.noreply.github.com>
Co-authored-by: Marcin S <marcin@bytedude.com>
Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>
* pre-checking: Reject failed PVFs
* paras: immediately reject any PVF that cannot reach a supermajority
* Make the `quorum` reject condition a bit more clear semantically
* Add comment
* Update implementer's guide
* Update a link
Not related to the rest of the PR, but I randomly noticed and fixed this.
* Update runtime/parachains/src/paras/tests.rs
Co-authored-by: s0me0ne-unkn0wn <48632512+s0me0ne-unkn0wn@users.noreply.github.com>
* Remove unneeded loop
* Log PVF retries using `info!`
* Change retry logs to `warn!` and add preparation failure log
* Log PVF execution failure
* Clarify why we reject failed PVFs
* Fix PVF reject runtime benchmarks
Co-authored-by: s0me0ne-unkn0wn <48632512+s0me0ne-unkn0wn@users.noreply.github.com>
* disputes pallet: Filter disputes with votes less than supermajority threshold
* Remove `max_spam_slots` usages
* Remove `SpamSlots`
* Remove `SpamSlotChange`
* Remove `Error<T>::PotentialSpam` and stale comments
* `create_disputes_with_no_spam` -> `create_disputes`
* Make tests compile - wip commit
* Rework `test_dispute_timeout`. Rename `update_spam_slots` to `filter_dispute_set`
* Remove `dispute_statement_becoming_onesided_due_to_spamslots_is_accepted` and `filter_correctly_accounts_spam_slots` -> they bring no value with removed spam slots
* Fix `test_provide_multi_dispute_success_and_other`
* Remove an old comment
* Remove spam slots from tests - clean todo comments
* Remove test - `test_decrement_spam`
* todo comments
* Update TODO comments
* Extract `test_unconfirmed_are_ignored` as separate test case
* Remove dead code
* Fix `test_unconfirmed_are_ignored`
* Remove dead code in `filter_dispute_data`
* Fix weights (related to commit "Remove `SpamSlots`")
* Disputes migration - first try
* Remove `dispute_max_spam_slots` + storage migration
* Fix `HostConfig` migration tests
* Deprecate `SpamSlots`
* Code review feedback
* add weight for storage version update
* fix bound for clear()
* Fix weights in disputes migration
* Revert "Deprecate `SpamSlots`"
This reverts commit 8c4d967c7b061abd76ba8b551223918c0b9e6370.
* Make mod migration public
* Remove `SpamSlots` from disputes pallet and use `storage_alias` in the migration
* Fix call to `clear()` for `SpamSlots` in migration
* Update migration and add a `try-runtime` test
* Add `pre_upgrade` `try-runtime` test
* Fix some test names in `HostConfiguration` migration
* Link spamslots migration in all runtimes
* Add `test_unconfirmed_disputes_cause_block_import_error`
* Update guide
- Remove `SpamSlots` related information from roadmap/implementers-guide/src/runtime/disputes.md
- Add 'Disputes filtering' to Runtime section of the Implementor's guide
* Update runtime/parachains/src/configuration/migration.rs
Co-authored-by: Marcin S. <marcin@bytedude.com>
* Code review feedback - update logs
* Code review feedback: fix weights
* Update runtime/parachains/src/disputes.rs
Co-authored-by: s0me0ne-unkn0wn <48632512+s0me0ne-unkn0wn@users.noreply.github.com>
* Additional logs in disputes migration
* Fix merge conflicts
* Add version checks in try-runtime tests
* Fix a compilation warning`
Co-authored-by: Marcin S. <marcin@bytedude.com>
Co-authored-by: s0me0ne-unkn0wn <48632512+s0me0ne-unkn0wn@users.noreply.github.com>
* Add clippy config and remove .cargo from gitignore
* first fixes
* Clippyfied
* Add clippy CI job
* comment out rusty-cachier
* minor
* fix ci
* remove DAG from check-dependent-project
* add DAG to clippy
Co-authored-by: alvicsam <alvicsam@gmail.com>
* Replace parachain/parathread boolean by enum
* Address PR comments
* Update dependencies
* ParaType -> ParaKind
* Swap enum field order to avoid migration
* Rename paratype field to parakind
* Manual en-/decocing of Parakind
* Manual TypeInfo for ParaKind
* rename field back to parachain
* minor
* Update runtime/parachains/src/paras/mod.rs
Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>
* Manual serde Serialize and Deserialize for ParaKind
* cargo fmt
* Update runtime/parachains/src/paras/mod.rs
Co-authored-by: Andronik <write@reusable.software>
* Add test for serde_json encoding/decoding
* Move serde_json dep to dev-deps
Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>
Co-authored-by: Andronik <write@reusable.software>
* remove para lock check for now
* fmt
* manual para lock
* expose schedule_code_upgrade and set_current_head
* extrinsics and benchmarks
* use zero
* add weights
* fix variable name
* add and fix comments
* fix weights
* add back default lock
Co-authored-by: parity-processbot <>
* BEEFY: generate historical proofs
Signed-off-by: Serban Iorga <serban@parity.io>
* cargo update -p sp-io
* Properly set max proof size for runtimes
* Properly set max proof size for mocks
* cargo fmt
* Set appropriate UMP service total proof size weight
* Disable zombienet-tests-parachains-disputes CI
* Add comment explaining weight math
* Use MAX_POV_SIZE for max proof size
* Cast to u64
* Remove comment
Signed-off-by: Serban Iorga <serban@parity.io>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
* disputes: runtime part of slashing
* disputes: reward winners
* disputes/slashing: validate_unsigned impl
* fmt
* disputes/slashing: report_dispute_lost_unsigned
* disputes/slashing: separate winners from losers and report winners
* disputes/slashing: refactoring
* impl HandleReports
* enable on Wenstend
* fmt
* add slashing pallet to the mock and test runtimes
* fix a bug in report_dispute_lost_unsigned
* fmt
* disputes: remove new_participants from summary
* disputes: remove punish_inconclusive
* impl SlashingHandler for Pallet for type-safety
* do not impl slashing::Config on mainnets yet
* teach spellcheck deduplication
* simplify interfaces and resolve some TODOs
* resolve some more TODOs
* minor typos
* move slashing into a folder
* remove unnecessary clone
* fix validator_set_count calculation
* introduce ValidatorSetCount
* store ValidatorSetCount
* fmt
* add the benchmark
* fmt
* unflatten slashing
* post-rebase fixes
* remove winners eagerly
* use real slashing weights for westend
* remove bench test suite
* zombinet: modify disputes test to check for an offence report
* zombinet: add a timeout
* add slashing pallet to Rococo
* zombienet: revert back to rococo-local
* fmt
* remove TODOs
* revert some accidental changes
* slashing is submodule of disputes
* Change the log target
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
* wrap comments with rustfmt, more docs, constants
* use Defensive trait
* cargo update -p sp-io
* merge offence types, remove rewards for now
* cargo update -p sp-io
* benchmark fixes
* fmt
* unused var
* fix block_author impl
* ressurect RewardValidators trait
* remove outdated comment
* more module docs
* introduce BenchmarkingConfig
* typo fix
* teach spellcheck unapplied
* use Weight::new()
* fix mocking rewards
* use RefTimeWeight
* ".git/.scripts/bench-bot.sh" runtime westend-dev runtime_parachains::disputes::slashing
* refactor maybe_identify_validators
* no more ticket in disguise
* remove outdated comments
* lower against valid to 0.1%
* bump zombienet version for debug
* use from_perthousand
* post-merge fixes
* another day, another Weight changes
* Revert "bump zombienet version for debug"
This reverts commit 0d9978711f8ec9a746a5e1c45e8ffbe7c75e7b5c.
* do not reward block authors
* fix outdated comment
* use Pays from frame_support::dispatch::Pays
* add timeout to is up
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: command-bot <>
Co-authored-by: Javier Viola <javier@parity.io>
Co-authored-by: Javier Viola <pepoviola@gmail.com>
* Add `DisputeState` to `DisputeCoordinatorMessage::RecentDisputes`
The new signature of the message is:
```
RecentDisputes(oneshot::Sender<Vec<(SessionIndex, CandidateHash, DisputeStatus)>>),
```
As part of the change also add `DispiteStatus` to
`polkadot_node_primitives`.
* Move dummy_signature() in primitives/test-helpers
* Enable staging runtime api on Rococo
* Implementation
* Move disputes to separate module
* Vote prioritisation
* Duplicates handling
* Double vote handling
* Unit tests
* Logs and metrics
* Code review feedback
* Fix ACTIVE/INACTIVE separation and update partition names
* Add `fn dispute_is_inactive` to node primitives and refactor `fn get_active_with_status()` logic
* Keep the 'old' logic if the staging api is not enabled
* Fix some comments in tests
* Add warning message if there are any inactive_unknown_onchain disputes
* Add file headers and remove `use super::*;` usage outside tests
* Adding doc comments
* Fix test methods names
* Fix staging api usage
* Fix `get_disputes` runtime function implementation
* Fix compilation error
* Fix arithmetic operations in tests
* Use smaller test data
* Rename `RuntimeApiRequest::StagingDisputes` to `RuntimeApiRequest::Disputes`
* Remove `staging-client` feature flag
* fmt
* Remove `vstaging` feature flag
* Some comments regarding the staging api
* Rename dispute selection modules in provisioner
with_staging_api -> prioritized_selection
without_staging_api -> random_selection
* Comments for staging api
* Comments
* Additional logging
* Code review feedback
process_selected_disputes -> into_multi_dispute_statement_set
typo
In trait VoteType: vote_value -> is_valid
* Code review feedback
* Fix metrics
* get_disputes -> disputes
* Get time only once during partitioning
* Fix partitioning
* Comments
* Reduce the number of hardcoded api versions
* Code review feedback
* Unused import
* Comments
* More precise log messages
* Code review feedback
* Code review feedback
* Code review feedback - remove `trait VoteType`
* Code review feedback
* Trace log for DisputeCoordinatorMessage::QueryCandidateVotes counter in vote_selection
* refactor backing points to only reward active set
* impl disputes::RewardValidators
* enable rewards on westend, kusama, polkadot
* fmt
* make dispute points same as backing
* disable on polkadot for now
* filter again if it's the first statement and spam slots were applied
* Update runtime/parachains/src/disputes.rs
Co-authored-by: Andronik <write@reusable.software>
* fixins
* add a proper test case, simplify some code
Co-authored-by: Andronik <write@reusable.software>
* Use into_account_truncating
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* more truncating
* more truncating
* more
* clean up parachain primitives
* more truncating
* update lockfile for {"substrate"}
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: parity-processbot <>
* explicitly tag network requests with version
* fmt
* make PeerSet more aware of versioning
* some generalization of the network bridge to support upgrades
* walk back some renaming
* walk back some version stuff
* extract version from fallback
* remove V1 from NetworkBridgeUpdate
* add accidentally-removed timer
* implement focusing for versioned messages
* fmt
* fix up network bridge & tests
* remove inaccurate version check in bridge
* remove some TODO [now]s
* fix fallout in statement distribution
* fmt
* fallout in gossip-support
* fix fallout in collator-protocol
* fix fallout in bitfield-distribution
* fix fallout in approval-distribution
* fmt
* use never!
* fmt
* Move `trait ParachainHost` to a separate version independent module
`trait ParachainHost` is no longer part of a specific primitives
version. Instead there is a single trait for stable and staging api
versions. The trait contains stable AND staging methods. The latter are
explicitly marked as unstable.
* Fix `use` primitives
`polkadot_primitives::v2` becomes `polkadot_primitives::runtime_api`
* Staging API declaration and stubs
Introduces the concept for 'staging functions' in runtime API. These
functions are still in testing and they are meant to be used only
within test networks (Westend).
They coexist with the stable calls for technical reasons - maintaining
different runtime APIs for different networks is hard to implement.
Check the doc comments in source files for more details how the staging
API should be used.
* Add new staging method - get_session_disputes()
Add `staging_get_session_disputes` to `ParachainHost` as the first
method of the staging API.
* Hide vstaging runtime api implementations behind feature flag
* Fix test runtime
* fn staging_get_session_disputes() is renamed to fn staging_get_disputes()
* paras: `include_pvf_check_statement` rt bench
Resolves#4933
This PR adds a benchmark for the `include_pvf_check_statement`
dispatchable. This is a necessary step to make it work without
modifications. That enables us to proceed with testing on Versi.
This introduces 5 new benchmarks. Those measure performance of the
`include_pvf_check_statement` under 2 different conditions:
1. regular vote submission. That's the common case.
2. submission of the last vote. That happens only once and leads to a
heavy finalization stage.
There are 2 different types of finalization (one for onboarding, one for
upgrading) and there are two outcomes: accepted and rejected. Those 4
are similar but I decided to cover them all and assign the maximum of
all 4. This is to avoid a situation when one of those paths becomes more
heavier than others and opens up an attack venue.
The regular vote submission weight is drastically different from the
submission last vote weight. That's why in case during runtime
finalization was not executed the weight consumed value will be lowered
down to the regular vote submission.
The finalization weight is proportional to the number of "causes", i.e.
the events that caused the PVF pre-checking vote in the first place, and
here we assume that the maximum number of causes is 100.
Theoretically, there is nothing that prevents an adversary to
register/upgrade to more than 100 parachains. In that case, the consumed
weight will be lower than the actual time consumed by the finalization
process. That can enable a DoS vector.
However, practically, it is not very possible. Right now it is very
expensive to call `schedule_para_initialize` because it requires a very
large lock up of funds. Moreover, finalizing a vote with 100 causes
leads to around 31ms time spent. Finalizing more will require more time.
However, finalizing with 200 causes will cause ≈62ms delay. This is not
that bad since even though we had a full block and the adversary tried
to finalize 200 causes it won't be able to even exceed the operational
extrinsic boundary of 250ms and even if so it won't make big difference.
That said, this should be addressed later on, esp. when we enable
parathreads, which will make creating causes easier. One of potential
solutions will be shifting the logic of finalization into
`on_initialize`/`on_finalize`. Another is to create a maximum number of
causes and then reject upgrades or onboardings if that was reached.
* cargo run --quiet --profile=production --features=runtime-benchmarks -- benchmark --chain=polkadot-dev --steps=50 --repeat=20 --pallet=runtime_parachains::paras --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --output=./runtime/polkadot/src/weights/runtime_parachains_paras.rs
* cargo run --quiet --profile=production --features=runtime-benchmarks -- benchmark --chain=kusama-dev --steps=50 --repeat=20 --pallet=runtime_parachains::paras --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --output=./runtime/kusama/src/weights/runtime_parachains_paras.rs
* cargo run --quiet --profile=production --features=runtime-benchmarks -- benchmark --chain=westend-dev --steps=50 --repeat=20 --pallet=runtime_parachains::paras --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --output=./runtime/westend/src/weights/runtime_parachains_paras.rs
* cargo run --quiet --profile=production --features runtime-benchmarks -- benchmark --chain=rococo-dev --steps=50 --repeat=20 --pallet=runtime_parachains::paras --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --output=./runtime/rococo/src/weights/runtime_parachains_paras.rs
* Fix import error
Co-authored-by: Parity Bot <admin@parity.io>
Co-authored-by: Robert Klotzner <robert.klotzner@gmx.at>
Co-authored-by: Lldenaurois <Ljdenaurois@gmail.com>
* remove v0 primitives from polkadot-primitives
* first pass: remove v0
* fix fallout in erasure-coding
* remove v1 primitives, consolidate to v2
* the great import update
* update runtime_api_impl_v1 to v2 as well
* guide: add `Version` request for runtime API
* add version query to runtime API
* reintroduce OldV1SessionInfo in a limited way
Anton Vilhelm Ásgeirsson