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core: fix comment

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This commit is contained in:
Gary Rong 2024-03-11 18:05:34 +08:00
parent 9d7a4dbb14
commit 470916de46
1 changed files with 3 additions and 3 deletions
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6
core/blockchain.go
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@ -628,14 +628,14 @@ func (bc *BlockChain) rewindHashHead(root common.Hash) (*types.Header, uint64) {
start = time.Now() // Timestamp the rewinding is restarted start = time.Now() // Timestamp the rewinding is restarted
logged = time.Now() // Timestamp last progress log was printed logged = time.Now() // Timestamp last progress log was printed
) )
// The oldest block to be searched is determined by the pivot block or a soft // The oldest block to be searched is determined by the pivot block or a constant
// finality threshold. The rationale behind this is as follows: // searching threshold. The rationale behind this is as follows:
// //
// - Snap sync is selected if the pivot block is available. The earliest available // - Snap sync is selected if the pivot block is available. The earliest available
// state is the pivot block itself, so there is no sense in going further back. // state is the pivot block itself, so there is no sense in going further back.
// //
// - Full sync is selected if the pivot block does not exist. The hash database // - Full sync is selected if the pivot block does not exist. The hash database
// periodically flushes the state to disk, and the soft finality threshold is // periodically flushes the state to disk, and the used searching threshold is
// considered sufficient to find a persistent state, even for the testnet. It // considered sufficient to find a persistent state, even for the testnet. It
// might be not enough for a chain that is nearly empty. In the worst case, // might be not enough for a chain that is nearly empty. In the worst case,
// the entire chain is reset to genesis, and snap sync is re-enabled on top, // the entire chain is reset to genesis, and snap sync is re-enabled on top,