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staking: only disable slashed validators and keep them disabled for whole era (#9448)

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* session: remove disabled validators threshold logic

* staking: add logic to track offending validators

* staking: disable validators for the whole era

* frame: fix tests

* staking: add tests for disabling validators handling

* staking: fix adding offending validator when already slashed in era

* address review comments

* session, staking: add comments about sorted vecs

Co-authored-by: Andronik Ordian <write@reusable.software>
This commit is contained in:
André Silva
2021-10-06 17:22:34 +01:00
committed by GitHub
parent 12e9e7ceb3
commit 7e5c022aea
25 changed files with 282 additions and 134 deletions
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substrate/bin/node/runtime/src/lib.rs
+2 -5
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@@ -459,10 +459,6 @@ impl_opaque_keys! {
}
}
parameter_types! {
pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
}
impl pallet_session::Config for Runtime {
type Event = Event;
type ValidatorId = <Self as frame_system::Config>::AccountId;
@@ -472,7 +468,6 @@ impl pallet_session::Config for Runtime {
type SessionManager = pallet_session::historical::NoteHistoricalRoot<Self, Staking>;
type SessionHandler = <SessionKeys as OpaqueKeys>::KeyTypeIdProviders;
type Keys = SessionKeys;
type DisabledValidatorsThreshold = DisabledValidatorsThreshold;
type WeightInfo = pallet_session::weights::SubstrateWeight<Runtime>;
}
@@ -498,6 +493,7 @@ parameter_types! {
pub const SlashDeferDuration: pallet_staking::EraIndex = 24 * 7; // 1/4 the bonding duration.
pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
pub const MaxNominatorRewardedPerValidator: u32 = 256;
pub const OffendingValidatorsThreshold: Perbill = Perbill::from_percent(17);
pub OffchainRepeat: BlockNumber = 5;
}
@@ -529,6 +525,7 @@ impl pallet_staking::Config for Runtime {
type EraPayout = pallet_staking::ConvertCurve<RewardCurve>;
type NextNewSession = Session;
type MaxNominatorRewardedPerValidator = MaxNominatorRewardedPerValidator;
type OffendingValidatorsThreshold = OffendingValidatorsThreshold;
type ElectionProvider = ElectionProviderMultiPhase;
type GenesisElectionProvider = onchain::OnChainSequentialPhragmen<Self>;
// Alternatively, use pallet_staking::UseNominatorsMap<Runtime> to just use the nominators map.