Exemplo n.º 1
0
func decodeAbortCacheMVCCKey(
	encKey engine.MVCCKey, dest []byte,
) (*uuid.UUID, error) {
	if encKey.IsValue() {
		return nil, util.Errorf("key %s is not a raw MVCC value", encKey)
	}
	return keys.DecodeAbortCacheKey(encKey.Key, dest)
}
Exemplo n.º 2
0
func tryAbort(kv engine.MVCCKeyValue) (string, error) {
	if kv.Key.Timestamp != hlc.ZeroTimestamp {
		return "", errors.New("not an abort cache key")
	}
	_, err := keys.DecodeAbortCacheKey(kv.Key.Key, nil)
	if err != nil {
		return "", err
	}
	var dest roachpb.AbortCacheEntry
	if err := maybeUnmarshalInline(kv.Value, &dest); err != nil {
		return "", err
	}
	return fmt.Sprintf("key=%q, pri=%d\n", dest.Key, dest.Priority), nil
}
Exemplo n.º 3
0
// Iterate walks through the abort cache, invoking the given callback for
// each unmarshaled entry with the key, the transaction ID and the decoded
// entry.
func (sc *AbortCache) Iterate(
	e engine.Engine, f func([]byte, *uuid.UUID, roachpb.AbortCacheEntry),
) {
	_, _ = engine.MVCCIterate(e, sc.min(), sc.max(), roachpb.ZeroTimestamp,
		true /* consistent */, nil /* txn */, false, /* !reverse */
		func(kv roachpb.KeyValue) (bool, error) {
			var entry roachpb.AbortCacheEntry
			txnID, err := keys.DecodeAbortCacheKey(kv.Key, nil)
			if err != nil {
				panic(err) // TODO(tschottdorf): ReplicaCorruptionError
			}
			if err := kv.Value.GetProto(&entry); err != nil {
				panic(err) // TODO(tschottdorf): ReplicaCorruptionError
			}
			f(kv.Key, txnID, entry)
			return false, nil
		})
}