45 lines
2.9 KiB
Markdown
45 lines
2.9 KiB
Markdown
<!--
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order: 3
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-->
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# Changes to make
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## Validator self-unbonding (which exceed minimum self delegation) could be required to start instantly
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Cases that trigger unbonding process
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* Validator undelegate can unbond more tokens than his minimum_self_delegation and it will automatically turn the validator into unbonding
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In this case, unbonding should start instantly.
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* Validator miss blocks and get slashed
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* Validator get slashed for double sign
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**Note:** When a validator begins the unbonding process, it could be required to turn the validator into unbonding state instantly.
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This is different than a specific delegator beginning to unbond. A validator beginning to unbond means that it's not in the set any more.
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A delegator unbonding from a validator removes their delegation from the validator.
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## Pending development
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```go
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// Changes to make
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// — Implement correct next epoch time calculation
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// — For validator self undelegation, it could be required to do start on end blocker
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// — Implement TODOs on the PR #46
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// Implement CLI commands for querying
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// — BufferedValidators
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// — BufferedMsgCreateValidatorQueue, BufferedMsgEditValidatorQueue
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// — BufferedMsgUnjailQueue, BufferedMsgDelegateQueue, BufferedMsgRedelegationQueue, BufferedMsgUndelegateQueue
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// Write epoch related tests with new scenarios
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// — Simulation test is important for finding bugs [Ask Dev for questions)
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// — Can easily add a simulator check to make sure all delegation amounts in queue add up to the same amount that’s in the EpochUnbondedPool
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// — I’d like it added as an invariant test for the simulator
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// — the simulator should check that the sum of all the queued delegations always equals the amount kept track in the data
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// — Staking/Slashing/Distribution module params are being modified by governance based on vote result instantly. We should test the effect.
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// — — Should test to see what would happen if max_validators is changed though, in the middle of an epoch
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// — we should define some new invariants that help check that everything is working smoothly with these new changes for 3 modules e.g. https://github.com/cosmos/cosmos-sdk/blob/master/x/staking/keeper/invariants.go
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// — — Within Epoch, ValidationPower = ValidationPower - SlashAmount
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// — — When epoch actions queue is empty, EpochDelegationPool balance should be zero
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// — we should count all the delegation changes that happen during the epoch, and then make sure that the resulting change at the end of the epoch is actually correct
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// — If the validator that I delegated to double signs at block 16, I should still get slashed instantly because even though I asked to unbond at 14, they still used my power at block 16, I should only be not liable for slashes once my power is stopped being used
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// — On the converse of this, I should still be getting rewards while my power is being used. I shouldn’t stop receiving rewards until block 20
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```
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