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Further optimize cosign DB

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This commit is contained in:
Luke Parker 2024-03-09 03:31:06 -05:00
parent 68dc872b88
commit 61a81e53e1
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1 changed files with 10 additions and 10 deletions
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20
coordinator/src/substrate/cosign.rs
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@ -207,13 +207,19 @@ async fn advance_cosign_protocol_inner(
window_end_exclusive = 0;
}
// The consensus rules for this are `last_intended_to_cosign_block + 1`
let scan_start_block = last_intended_to_cosign_block + 1;
// As a practical optimization, we don't re-scan old blocks since old blocks are independent to
// new state
let scan_start_block = scan_start_block.max(ScanCosignFrom::get(&txn).unwrap_or(0));
// Check all blocks within the window to see if they should be cosigned
// If so, we're skipping them and need to flag them as skipped so that once the window closes, we
// do cosign them
// We only perform this check if we haven't already marked a block as skipped since the cosign
// the skipped block will cause will cosign all other blocks within this window
if skipped_block.is_none() {
for b in (last_intended_to_cosign_block + 1) .. window_end_exclusive.min(latest_number) {
for b in scan_start_block .. window_end_exclusive.min(latest_number) {
if block_has_events(&mut txn, serai, b).await? == HasEvents::Yes {
skipped_block = Some(b);
log::debug!("skipping cosigning {b} due to proximity to prior cosign");
@ -228,16 +234,7 @@ async fn advance_cosign_protocol_inner(
// A list of sets which are cosigning, along with a boolean of if we're in the set
let mut cosigning = vec![];
// The consensus rules for this are `last_intended_to_cosign_block + 1`
let scan_start_block = last_intended_to_cosign_block + 1;
// As a practical optimization, we don't re-scan old blocks since old blocks are independent to
// new state
let scan_start_block = scan_start_block.max(ScanCosignFrom::get(&txn).unwrap_or(0));
for block in scan_start_block ..= latest_number {
// This TX is committed, always re-run this loop from immediately before this block
// That allows the below loop to break out on a block it wants to revisit later
ScanCosignFrom::set(&mut txn, &(scan_start_block - 1));
let actual_block = serai
.finalized_block_by_number(block)
.await?
@ -286,6 +283,9 @@ async fn advance_cosign_protocol_inner(
break;
}
// If this TX is committed, always start future scanning from the next block
ScanCosignFrom::set(&mut txn, &(scan_start_block + 1));
}
if let Some((number, hash)) = to_cosign {