CODEWITHSUNDEEP
google-app-engineapp-engine-ndbblobstore
viv
viv

Reputation: 166

Auto creation of entities in blobuploadsession datastore when using upload to url functionality in blob datastore

I'm wondering if deletion of these entities in blobuploadsession would affect my app functionality or performance in any which way. The reason for deletion is when a new form is created and there were no files that were uploaded to, then it results in unnecessary entities being created.

(edit: additional info from comment)

I use blobstore (part of NDB) to store images asynchronously via upload URL functionality. When I run the app on localhost, there is an auto-creation of a datastore called "BlobUploadSession". This is the entity where all the URLs for the images to be uploaded are stored as entities. When I upload a photo to the URL, it goes into the "BlobInfo" datastore. Now, I don't have a need of the URLs since the photo has already been uploaded. So, I'm wondering if I can delete the BlobUploadSession entities? Btw, BlobUploadSession and BlobInfo are default datastores automatically created.

Upvotes: 0

Views: 65

Answers (1)

Dan Cornilescu
Dan Cornilescu

Reputation: 39824

The __BlobUploadSession__ and __BlobInfo__ entities are created by and only internally used by the development server while emulating the blobstore functionality.

There are others, similarly named __SomeEntityName__ entities for emulating other pieces of functionality, for example a pile of them are created when you're requesting datastore stats (such function doesn't exist per-se in production).

These entities aren't created on GAE, so no need to worry about them in production.

See also related How to remove built-in kinds' names in google datastore using kind queries

Upvotes: 2

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