We saw a case where the recovery stats reported `recovered_bytes` greater than `length_in_bytes` for one file:

```
GET /_recovery?detailed

200 OK
...
{
  "name": "_buk.fdt",
  "length_in_bytes": 26891307173,
  "reused": false,
  "recovered_in_bytes": 35324928266,
  "recovered_from_snapshot_in_bytes": 8433621093
}
...
```

NB `35324928266 == 26891307173 + 8433621093`

This causes Elasticsearch to compute a negative value for the reserved space on the target node of this recovery, which prevents stats APIs from working. This appears to be caused by a network-level failure which triggers a retry without first cancelling an ongoing download of a different file with the same name from the snapshot repository.

---

### Workaround

Restart the target node to clear these stats.
server/src/main/java/org/elasticsearch/index/shard/IndexShard.java
*/
    private final AtomicBoolean active = new AtomicBoolean();
    /**
     * Allows for the registration of listeners that are called when a change becomes visible for search.
     */
    private final RefreshListeners refreshListeners;
    private final AtomicLong lastSearcherAccess = new AtomicLong();
    private final AtomicReference<Translog.Location> pendingRefreshLocation = new AtomicReference<>();
    private final RefreshPendingLocationListener refreshPendingLocationListener;
    private volatile boolean useRetentionLeasesInPeerRecovery;
    private final boolean isDataStreamIndex; 
    public IndexShard(
        final ShardRouting shardRouting,
        final IndexSettings indexSettings,
        final ShardPath path,
        final Store store,
        final Supplier<Sort> indexSortSupplier,
        final IndexCache indexCache,
        final MapperService mapperService,
        final SimilarityService similarityService,
        final EngineFactory engineFactory,
        final IndexEventListener indexEventListener,
        final CheckedFunction<DirectoryReader, DirectoryReader, IOException> indexReaderWrapper,
        final ThreadPool threadPool,
        final BigArrays bigArrays,
        final Engine.Warmer warmer,
        final List<SearchOperationListener> searchOperationListener,
        final List<IndexingOperationListener> listeners,
        final Runnable globalCheckpointSyncer,
        final RetentionLeaseSyncer retentionLeaseSyncer,