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les: historical data garbage collection (#19570)

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This change introduces garbage collection for the light client. Historical
chain data is deleted periodically. If you want to disable the GC, use
the --light.nopruning flag.
This commit is contained in:
gary rong
2020-07-13 17:02:54 +08:00
committed by GitHub
parent b8dd0890b3
commit 6eef141aef
45 changed files with 841 additions and 213 deletions
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8
core/rawdb/freezer.go
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@ -287,12 +287,12 @@ func (f *freezer) freeze(db ethdb.KeyValueStore) {
backoff = true
continue
case *number < params.ImmutabilityThreshold:
log.Debug("Current full block not old enough", "number", *number, "hash", hash, "delay", params.ImmutabilityThreshold)
case *number < params.FullImmutabilityThreshold:
log.Debug("Current full block not old enough", "number", *number, "hash", hash, "delay", params.FullImmutabilityThreshold)
backoff = true
continue
case *number-params.ImmutabilityThreshold <= f.frozen:
case *number-params.FullImmutabilityThreshold <= f.frozen:
log.Debug("Ancient blocks frozen already", "number", *number, "hash", hash, "frozen", f.frozen)
backoff = true
continue
@ -304,7 +304,7 @@ func (f *freezer) freeze(db ethdb.KeyValueStore) {
continue
}
// Seems we have data ready to be frozen, process in usable batches
limit := *number - params.ImmutabilityThreshold
limit := *number - params.FullImmutabilityThreshold
if limit-f.frozen > freezerBatchLimit {
limit = f.frozen + freezerBatchLimit
}