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minor refactoring of accounts hash cache (#28260)

This commit is contained in:
Jeff Washington (jwash) 2022-10-06 10:50:16 -07:00 committed by GitHub
parent 0aea2da091
commit bb9a19ac86
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1 changed files with 8 additions and 6 deletions
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14
runtime/src/accounts_db.rs
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@ -7033,24 +7033,26 @@ impl AccountsDb {
{
let mut load_from_cache = true;
let mut hasher = std::collections::hash_map::DefaultHasher::new();
bin_range.start.hash(&mut hasher);
bin_range.end.hash(&mut hasher);
let is_first_scan_pass = bin_range.start == 0;
// calculate hash representing all storages in this chunk
for (slot, sub_storages) in snapshot_storages.iter_range(&range_this_chunk) {
if bin_range.start == 0 && slot < one_epoch_old {
if is_first_scan_pass && slot < one_epoch_old {
self.update_old_slot_stats(stats, sub_storages);
}
bin_range.start.hash(&mut hasher);
bin_range.end.hash(&mut hasher);
if let Some(sub_storages) = sub_storages {
if sub_storages.len() > 1
&& !config.store_detailed_debug_info_on_failure
{
// Having > 1 appendvecs per slot is not expected. If we have that, we just fail to cache this slot.
// However, if we're just dumping detailed debug info, we don't care, so store anyway.
// Having > 1 appendvecs per slot is not expected. If we have that, we just fail to load from the cache for this slot.
// However, if we're just dumping detailed debug info store anyway.
load_from_cache = false;
break;
}
// hash info about this storage
let append_vec = sub_storages.first().unwrap();
// check written_bytes here. This is necessary for tests and removes a potential for false positives.
append_vec.written_bytes().hash(&mut hasher);
let storage_file = append_vec.accounts.get_path();
slot.hash(&mut hasher);