presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/ShardRecoveryManager.java/ShardRecoveryManager/getMissingShards
class ShardRecoveryManager:    private Set<ShardMetadata> getMissingShards()
    {
        return shardManager.getNodeShards(nodeIdentifier).stream()
                .filter(shard -> shardNeedsRecovery(shard.getShardUuid(), shard.getCompressedSize()))
                .collect(toSet());
    }