CODEWITHSUNDEEP
google-app-enginegoogle-cloud-datastorebackuprestoredatastore-admin
joem
joem

Reputation: 31

App Engine Datastore: Can I restore entities of a specific namespace from a full backup?

I created a backup of all entities of all namespaces using Google Cloud Datastore Admin.

I would like to ask if can I restore entities only on a namespace.

Example: I have 3 namespaces

All namespaces contain the same entity kind let's say MyEntityKind

I would like to restore only Namespace_3.MyEntityKind from my full backup

How can I do that? In Datastore Admin, I can only select kind but not namespace when doing a restoration.

Thanks

Upvotes: 3

Views: 581

Answers (1)

Dan McGrath
Dan McGrath

Reputation: 42038

Overview

Datastore Admin backup is being phased out, so using the new managed exports functionality, although the same principles apply.

Create a new project, let's call it staging. Import the full backup into staging. Create a new export from staging for just the namespace or kind you want. Import this new export into your original project.

Commands

A full export in the new system is achieved as such:

gcloud datastore export gs://${BUCKET}

When exported like this, there isn't a direct method to import select parts, so you need to switch project, then import it a staging project. The importing command is straightforward:

gcloud datastore import gs://${BUCKET}/[PATH]/[FILE].overall_export_metadata

[PATH] can be found from the results from the export command, or browsing your Cloud Stage bucket in the console. [FILE] is the same as [PATH], but you can confirm in the UI.

Now, export the just the namespace you want from the staging project:

gcloud datastore export --namespaces="Namespace_3" gs://${BUCKET}

You now have an export with just the namespace you want, and can import it back into the original project.

Upvotes: 2

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