eth/catalyst: improve consensus heartbeat (#26896)
improve the heartbeat function that is no longer suitable in the current situation Co-authored-by: “openex27” <“openexkevin@gmail.com”>
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@ -20,7 +20,6 @@ package catalyst
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import (
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"errors"
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"fmt"
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"math/big"
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"sync"
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"time"
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@ -64,11 +63,6 @@ const (
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// attached before starting to issue warnings.
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beaconUpdateStartupTimeout = 30 * time.Second
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// beaconUpdateExchangeTimeout is the max time allowed for a beacon client to
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// do a transition config exchange before it's considered offline and the user
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// is warned.
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beaconUpdateExchangeTimeout = 2 * time.Minute
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// beaconUpdateConsensusTimeout is the max time allowed for a beacon client
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// to send a consensus update before it's considered offline and the user is
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// warned.
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@ -667,14 +661,13 @@ func (api *ConsensusAPI) heartbeat() {
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// attached, so no need to print scary warnings to the user.
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time.Sleep(beaconUpdateStartupTimeout)
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var (
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offlineLogged time.Time
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ttd = api.eth.BlockChain().Config().TerminalTotalDifficulty
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)
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// If the network is not yet merged/merging, don't bother continuing.
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if ttd == nil {
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if api.eth.BlockChain().Config().TerminalTotalDifficulty == nil {
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return
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}
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var offlineLogged time.Time
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for {
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// Sleep a bit and retrieve the last known consensus updates
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time.Sleep(5 * time.Second)
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@ -698,20 +691,14 @@ func (api *ConsensusAPI) heartbeat() {
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offlineLogged = time.Time{}
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continue
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}
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if time.Since(lastTransitionUpdate) > beaconUpdateExchangeTimeout {
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if time.Since(offlineLogged) > beaconUpdateWarnFrequency {
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if time.Since(offlineLogged) > beaconUpdateWarnFrequency {
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if lastForkchoiceUpdate.IsZero() && lastNewPayloadUpdate.IsZero() {
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if lastTransitionUpdate.IsZero() {
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log.Warn("Post-merge network, but no beacon client seen. Please launch one to follow the chain!")
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} else {
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log.Warn("Previously seen beacon client is offline. Please ensure it is operational to follow the chain!")
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log.Warn("Beacon client online, but never received consensus updates. Please ensure your beacon client is operational to follow the chain!")
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}
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offlineLogged = time.Now()
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}
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continue
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}
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if time.Since(offlineLogged) > beaconUpdateWarnFrequency {
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if lastForkchoiceUpdate.IsZero() && lastNewPayloadUpdate.IsZero() {
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log.Warn("Beacon client online, but never received consensus updates. Please ensure your beacon client is operational to follow the chain!")
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} else {
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log.Warn("Beacon client online, but no consensus updates received in a while. Please fix your beacon client to follow the chain!")
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}
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@ -719,62 +706,6 @@ func (api *ConsensusAPI) heartbeat() {
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}
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continue
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}
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if time.Since(lastTransitionUpdate) <= beaconUpdateExchangeTimeout {
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offlineLogged = time.Time{}
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continue
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}
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if time.Since(offlineLogged) > beaconUpdateWarnFrequency {
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// Retrieve the last few blocks and make a rough estimate as
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// to when the merge transition should happen
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var (
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chain = api.eth.BlockChain()
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head = chain.CurrentHeader()
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htd = chain.GetTd(head.Hash(), head.Number.Uint64())
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)
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if htd.Cmp(ttd) >= 0 {
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if lastTransitionUpdate.IsZero() {
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log.Warn("Merge already reached, but no beacon client seen. Please launch one to follow the chain!")
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} else {
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log.Warn("Merge already reached, but previously seen beacon client is offline. Please ensure it is operational to follow the chain!")
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}
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offlineLogged = time.Now()
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continue
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}
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var eta time.Duration
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if head.Number.Uint64() > 0 {
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// Accumulate the last 64 difficulties to estimate the growth
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var (
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deltaDiff uint64
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deltaTime uint64
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current = head
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)
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for i := 0; i < 64; i++ {
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parent := chain.GetHeader(current.ParentHash, current.Number.Uint64()-1)
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if parent == nil {
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break
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}
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deltaDiff += current.Difficulty.Uint64()
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deltaTime += current.Time - parent.Time
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current = parent
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}
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// Estimate an ETA based on the block times and the difficulty growth
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if deltaTime > 0 {
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growth := deltaDiff / deltaTime
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left := new(big.Int).Sub(ttd, htd)
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eta = time.Duration(new(big.Int).Div(left, new(big.Int).SetUint64(growth+1)).Uint64()) * time.Second
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}
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}
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message := "Merge is configured, but previously seen beacon client is offline. Please ensure it is operational before the transition arrives!"
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if lastTransitionUpdate.IsZero() {
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message = "Merge is configured, but no beacon client seen. Please ensure you have one available before the transition arrives!"
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}
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if eta < time.Second {
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log.Warn(message)
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} else {
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log.Warn(message, "eta", common.PrettyAge(time.Now().Add(-eta))) // weird hack, but duration formatted doesn't handle days
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}
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offlineLogged = time.Now()
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}
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}
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}
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