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triedb/pathdb: improve error handling

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This commit is contained in:
Gary Rong 2025-06-02 12:28:06 +08:00
parent 297cebdd38
commit 6f29a1eb8d
1 changed files with 23 additions and 6 deletions
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29
triedb/pathdb/history_reader.go
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@ -156,7 +156,13 @@ func (r *indexReaderWithLimitTag) readGreaterThan(id uint64, lastID uint64) (uin
if r.limit == lastID {
return res, nil
}
// Refresh the index reader and give another attempt
// Refresh the index reader and attempt again. If the latest indexed position
// is even below the ID of the disk layer, it indicates that state histories
// are being removed. In this case, it would theoretically be better to block
// the state rollback operation synchronously until all readers are released.
// Given that it's very unlikely to occur and users try to perform historical
// state queries while reverting the states at the same time. Simply returning
// an error should be sufficient for now.
metadata := loadIndexMetadata(r.db)
if metadata == nil || metadata.Last < lastID {
return 0, errors.New("state history hasn't been indexed yet")
@ -189,8 +195,11 @@ func newHistoryReader(disk ethdb.KeyValueReader, freezer ethdb.AncientReader) *h
// state history.
func (r *historyReader) readAccountMetadata(address common.Address, historyID uint64) ([]byte, error) {
blob := rawdb.ReadStateAccountIndex(r.freezer, historyID)
if len(blob) == 0 {
return nil, fmt.Errorf("account index is truncated, historyID: %d", historyID)
}
if len(blob)%accountIndexSize != 0 {
return nil, fmt.Errorf("account index is corrupted, historyID: %d", historyID)
return nil, fmt.Errorf("account index is corrupted, historyID: %d, size: %d", historyID, len(blob))
}
n := len(blob) / accountIndexSize
@ -213,11 +222,14 @@ func (r *historyReader) readAccountMetadata(address common.Address, historyID ui
func (r *historyReader) readStorageMetadata(storageKey common.Hash, storageHash common.Hash, historyID uint64, slotOffset, slotNumber int) ([]byte, error) {
// TODO(rj493456442) optimize it with partial read
blob := rawdb.ReadStateStorageIndex(r.freezer, historyID)
if len(blob) == 0 {
return nil, fmt.Errorf("storage index is truncated, historyID: %d", historyID)
}
if len(blob)%slotIndexSize != 0 {
return nil, fmt.Errorf("storage indices is corrupted, historyID: %d", historyID)
return nil, fmt.Errorf("storage indices is corrupted, historyID: %d, size: %d", historyID, len(blob))
}
if slotIndexSize*(slotOffset+slotNumber) > len(blob) {
return nil, errors.New("out of slice")
return nil, fmt.Errorf("storage indices is truncated, historyID: %d, size: %d, offset: %d, length: %d", historyID, len(blob), slotOffset, slotNumber)
}
subSlice := blob[slotIndexSize*slotOffset : slotIndexSize*(slotOffset+slotNumber)]
@ -261,7 +273,7 @@ func (r *historyReader) readAccount(address common.Address, historyID uint64) ([
// TODO(rj493456442) optimize it with partial read
data := rawdb.ReadStateAccountHistory(r.freezer, historyID)
if len(data) < length+offset {
return nil, fmt.Errorf("account data is truncated, address: %#x, historyID: %d", address, historyID)
return nil, fmt.Errorf("account data is truncated, address: %#x, historyID: %d, size: %d, offset: %d, len: %d", address, historyID, len(data), offset, length)
}
return data[offset : offset+length], nil
}
@ -289,7 +301,7 @@ func (r *historyReader) readStorage(address common.Address, storageKey common.Ha
// TODO(rj493456442) optimize it with partial read
data := rawdb.ReadStateStorageHistory(r.freezer, historyID)
if len(data) < offset+length {
return nil, errors.New("corrupted storage data")
return nil, fmt.Errorf("storage data is truncated, address: %#x, key: %#x, historyID: %d, size: %d, offset: %d, len: %d", address, storageKey, historyID, len(data), offset, length)
}
return data[offset : offset+length], nil
}
@ -340,6 +352,11 @@ func (r *historyReader) read(state stateIdentQuery, stateID uint64, lastID uint6
if historyID == math.MaxUint64 {
return latestValue, nil
}
// Resolve data from the specified state history object. Notably, since the history
// reader operates completely asynchronously with the indexer/unindexer, it's possible
// that the associated state histories are no longer available due to a rollback.
// Such truncation should be captured by the state resolver below, rather than returning
// invalid data.
if state.account {
return r.readAccount(state.address, historyID)
}