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Enable reconstruction for nodes custodying more than 50% of columns and instrument tracing (#8052)

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Co-Authored-By: Jimmy Chen <jchen.tc@gmail.com>

Co-Authored-By: Jimmy Chen <jimmy@sigmaprime.io>
This commit is contained in:
Jimmy Chen
2025-09-16 18:17:43 +10:00
committed by GitHub
parent 242bdfcf12
commit 3de646c8b3
7 changed files with 76 additions and 72 deletions
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22
beacon_node/beacon_chain/src/data_availability_checker/overflow_lru_cache.rs
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@@ -592,9 +592,9 @@ impl<T: BeaconChainTypes> DataAvailabilityCheckerInner<T> {
/// Check whether data column reconstruction should be attempted.
///
/// Potentially trigger reconstruction if:
/// - Our custody requirement is all columns (supernode), and we haven't got all columns
/// - We have >= 50% of columns, but not all columns
/// Potentially trigger reconstruction if all the following satisfy:
/// - Our custody requirement is more than 50% of total columns,
/// - We haven't received all required columns
/// - Reconstruction hasn't been started for the block
///
/// If reconstruction is required, returns `PendingComponents` which contains the
@@ -609,15 +609,25 @@ impl<T: BeaconChainTypes> DataAvailabilityCheckerInner<T> {
return ReconstructColumnsDecision::No("block already imported");
};
// If we're sampling all columns, it means we must be custodying all columns.
let Some(epoch) = pending_components
.verified_data_columns
.first()
.map(|c| c.as_data_column().epoch())
else {
return ReconstructColumnsDecision::No("not enough columns");
};
let total_column_count = T::EthSpec::number_of_columns();
let sampling_column_count = self
.custody_context
.num_of_data_columns_to_sample(epoch, &self.spec);
let received_column_count = pending_components.verified_data_columns.len();
if pending_components.reconstruction_started {
return ReconstructColumnsDecision::No("already started");
}
if received_column_count >= total_column_count {
return ReconstructColumnsDecision::No("all columns received");
if received_column_count >= sampling_column_count {
return ReconstructColumnsDecision::No("all sampling columns received");
}
if received_column_count < total_column_count / 2 {
return ReconstructColumnsDecision::No("not enough columns");