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feat: enhanced locator #1966

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merged 1 commit into from
Mar 20, 2020
Merged

feat: enhanced locator #1966

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10 changes: 10 additions & 0 deletions sync/src/types.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,8 @@ const GET_HEADERS_TIMEOUT: Duration = Duration::from_secs(15);
const TX_FILTER_SIZE: usize = 50000;
const TX_ASKED_SIZE: usize = TX_FILTER_SIZE;
const ORPHAN_BLOCK_SIZE: usize = 1024;
// 2 ** 13 < 6 * 1800 < 2 ** 14
const ONE_DAY_BLOCK_NUMBER: u64 = 8192;

// State used to enforce CHAIN_SYNC_TIMEOUT
// Only in effect for connections that are outbound, non-manual,
Expand Down Expand Up @@ -983,6 +985,14 @@ impl SyncSnapshot {
}

if index < step {
// Insert some low-height blocks in the locator
// to quickly start parallel ibd block downloads
// and it should not be too much
if locator.len() < 31 && index > ONE_DAY_BLOCK_NUMBER {
index >>= 1;
base = header_hash;
continue;
}
// always include genesis hash
if index != 0 {
locator.push(self.consensus().genesis_hash());
Expand Down