The `swh.indexer.metadata` module uses `self.storage.directory_ls()` in order to get all entries in a directory.
However, there may be many entries, causing the server to crash because of timeout (which is why this method is deprecated). Even if it worked, it could take a significant amount of memory.
Instead, `swh.indexer.metadata` should use `self.storage.directory_get_entries()`, which supports pagination.