Hyrax::WorkingDirectory puts object in memory as string

[atz]

Hyrax::WorkingDirectory in the line:

copy_stream_to_working_directory(id, file.original_name, StringIO.new(file.content))

calling file.content (potentially) puts the entire file in memory at once. See ActiveFedora::File#content and the various behaviors based on different @content classes (local_or_remote_content and behaves_like_io?).

The point is that WorkingDirectory doesn't know whether it is getting in IO-like object, or an internal @ds_content, ldp_source.get.body or what. @jcoyne identified this problem in commit 5db7d0c with the line:

TODO: this causes a load into memory, which we'd like to avoid

[atz]

See: samvera/hydra-derivatives#162

[no-reply]

Closing this. We won't do directed work on this unless we can identify a related performance issue.

We're re-instating Skylight on Nurax to help identify performance and memory use issues, but also welcome active feedback from adopters.