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Editorial Team
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Asked: 2026-05-31T21:19:59+00:00

Short: how are the keys changed when migrating to HR. Does just the App

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Short: how are the keys changed when migrating to HR. Does just the App Name change or do the underlying id / names changed?

Long: I’m currently on M/S with a bunch of un-parented entities. In switching to High Replication, I have to re-parent a number of entities (for eventual consistency). I am parenting them without real keys (i.e. db.Key.from_path(‘ParentType’, ‘ParentId-CustomTag)). I have a strong reason for doing this (to avoid having too many writes to a single entity group).

If the Keys and Parents are migrated in a way that preserves the underlying ID, then I don’t have to re-re-parent on the HR side. If they do change, then I need to re-re-parent on the HR side.

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1 Answer

  1. Editorial Team

    The underlying ids remain the same after migration. Only the app field of the key changes.

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