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Enable download of future forks (#10739)

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* Enable download of future forks

* Fixed external tests
This commit is contained in:
Arkadiy Paronyan
2022-02-02 12:29:36 +01:00
committed by GitHub
parent 3938c1cb62
commit e337f0be4b
3 changed files with 97 additions and 32 deletions
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substrate/client/network/src/protocol/sync.rs
+7 -1
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@@ -2418,7 +2418,11 @@ fn fork_sync_request<B: BlockT>(
if !r.peers.contains(id) {
continue
}
if r.number <= best_num {
// Download the fork only if it is behind or not too far ahead our tip of the chain
// Otherwise it should be downloaded in full sync mode.
if r.number <= best_num ||
(r.number - best_num).saturated_into::<u32>() < MAX_BLOCKS_TO_REQUEST as u32
{
let parent_status = r.parent_hash.as_ref().map_or(BlockStatus::Unknown, check_block);
let count = if parent_status == BlockStatus::Unknown {
(r.number - finalized).saturated_into::<u32>() // up to the last finalized block
@@ -2438,6 +2442,8 @@ fn fork_sync_request<B: BlockT>(
max: Some(count),
},
))
} else {
trace!(target: "sync", "Fork too far in the future: {:?} (#{})", hash, r.number);
}
}
None