__BlobFileIndex__ fills Datastore Quota

Question

I serialize objects to blobstore in my app, and delete and recreate them whenever they change. I know this is not the best way, but I found that is good way for rapid prototyping.

Now I am in the phase to use datastore, however I have a problem. My datastore quota is full! :) I did alot of search for the issue, yet here I am.

Appearantly for every blob, __BlobInfo__, and __BlobFileIndex__ kinds keep info about the blob. My problem is when I delete blob, info in __BlobInfo__ is deleted, but not the one in the __BlobFileIndex__

I desperately tried appcfg vacum_indexes, but that did not help as expected.

I use Java platform by the way.

Here are my questions

1. How can I clear unused __BlobFileIndex__ entries?
2. What is the proper way to handle this situation to not occur again?

Thank you.

Edit: Woohooo! I now see that I cant delete these unwanted indexes a) Datastore admin does not list them b) Manual deletion code throws Exception(java.lang.IllegalArgumentException: illegal key.path.element.type: BlobFileIndex) Since entities starting with double underscore are app engine reserved entities, it doesnt allow me delete it. Guys at google, I AM STUCK HERE :)

Answer 1

You can star this issue to get notified as soon as there's a solution to this...
http://code.google.com/p/googleappengine/issues/detail?id=6849