Add cdp liquidations by external keeper #750
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rhuairahrighairidh
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Dec 31, 2020
karzak
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Jan 18, 2021
* Add 'InterestFactor' to CDP type (#734) * update cdp type to include interest factor * fix build * Add cdp accumulator methods (#735) * remame fees to interest * add accumulate interest method * add basic test * add note * address review comments * update tests * Add sync cdp interest method (#737) * remame fees to interest * add accumulate interest method * add basic test * add note * address review comments * update tests * remove old fee functions * add method to synchronize cdp interest * add multi-cdp tests * add test with many blocks * add test for interest getter * address review comments * calculate time difference then convert to seconds * fix: update collateral index when syncing interest * fix: differentiate between case when apy is zero and all fees are being rounded to zero * fix: round time difference properly * update cdp genesis state and migrations (#738) * remame fees to interest * add accumulate interest method * add basic test * add note * address review comments * update tests * remove old fee functions * add method to synchronize cdp interest * add multi-cdp tests * add test with many blocks * add test for interest getter * update cdp genesis state and migrations * address review comments * calculate time difference then convert to seconds * fix: update collateral index when syncing interest * fix: differentiate between case when apy is zero and all fees are being rounded to zero * fix: simplify add/remove/update collateral index * update genesis state to include total principal amounts * update migration * Delete kava-4-cdp-state-block-500000.json * Add cdp liquidations by external keeper (#750) * feat: split liquidations between external keepers and automated begin blocker * address review comments * USDX incentive accumulators (#752) * feat: split liquidations between external keepers and automated begin blocker * wip: refactor usdx minting incentives to use accumulators/hooks * wip: refactor usdx minting claim object * feat: use accumulators/hooks for usdx minting rewards * fix: get tests passing * fix: don't create claim objects unless that cdp type is eligable for rewards * add begin blocker * update client * cleanup comments/tests * update querier * address review comments * fix: check for division by zero * address review comments * run hook before interest is synced * Remove savings rate (#764) * remove savings rate * remove savings rate from debt param * update migrations * address review comments * Add usdx incentives calculation test (#765) * add usdx incentive calculation test * update reward calculation * add allowable error to test criteria * Update x/incentive/keeper/rewards_test.go Co-authored-by: Kevin Davis <karzak@users.noreply.github.com> * fix: remove old fields from test genesis state Co-authored-by: Ruaridh <rhuairahrighairidh@users.noreply.github.com> Co-authored-by: Ruaridh <rhuairahrighairidh@users.noreply.github.com>
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Features:
MsgLiquidatewhere an external party can cause a liquidation for a risky cdp. If successful, the keeper is rewarded a percentage of the collateral according toKeeperRewardPercentageparameter.SynchronizeInterestForRiskyCDPsfunction in the begin blocker that will update fees for thenriskiest cdps in the store (cdps with the lowest collateral:debt ratio).nis set according to theCheckCollateralizationIndexCountparameter. If any CDPs that are touched bySynchronizeInterestForRiskyCDPsgo below the required collateralization ratio, they will be liquidated in the begin blocker.