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cmd/utils, eth: disallow invalid snap sync / snapshot flag combos (#28657)

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* eth: prevent startup in snap mode without snapshots

* cmd/utils: try to fix bad flag combos wrt snap sync and snapshot generation
This commit is contained in:
Péter Szilágyi 2023-12-08 15:16:04 +02:00 committed by GitHub
parent fff843cfaf
commit d98d70f670
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 2 deletions
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10
cmd/utils/flags.go
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@ -1677,10 +1677,16 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
if ctx.IsSet(CacheLogSizeFlag.Name) {
cfg.FilterLogCacheSize = ctx.Int(CacheLogSizeFlag.Name)
}
if !ctx.Bool(SnapshotFlag.Name) {
if !ctx.Bool(SnapshotFlag.Name) || cfg.SnapshotCache == 0 {
// If snap-sync is requested, this flag is also required
if cfg.SyncMode == downloader.SnapSync {
log.Info("Snap sync requested, enabling --snapshot")
if !ctx.Bool(SnapshotFlag.Name) {
log.Warn("Snap sync requested, enabling --snapshot")
}
if cfg.SnapshotCache == 0 {
log.Warn("Snap sync requested, resetting --cache.snapshot")
cfg.SnapshotCache = ctx.Int(CacheFlag.Name) * CacheSnapshotFlag.Value / 100
}
} else {
cfg.TrieCleanCache += cfg.SnapshotCache
cfg.SnapshotCache = 0 // Disabled

4
eth/handler.go
View File

@ -178,6 +178,10 @@ func newHandler(config *handlerConfig) (*handler, error) {
log.Info("Enabled snap sync", "head", head.Number, "hash", head.Hash())
}
}
// If snap sync is requested but snapshots are disabled, fail loudly
if h.snapSync.Load() && config.Chain.Snapshots() == nil {
return nil, errors.New("snap sync not supported with snapshots disabled")
}
// Construct the downloader (long sync)
h.downloader = downloader.New(config.Database, h.eventMux, h.chain, nil, h.removePeer, h.enableSyncedFeatures)
if ttd := h.chain.Config().TerminalTotalDifficulty; ttd != nil {