# Which Problems Are Solved
Improve the performance of the `admin/v1/import` API endpoint.
Specifaclly the import of large amount of project grants.
# How the Problems Are Solved
`AddProjectGrantWithID` and `AddProjectGrantMember` methods of
`Commands` used to get the current state of the Writemodel to check if
the current GrantID or the combination of GrantID & UserID wasn't
already used. However, the Added events already have protection against
duplication by the `UniqueConstaint` methods.
The queries become very slow when there is a great amount of project
grants. Because all the events are pushed to the aggregate ID of the
project, we had to obtain all related project events, including events
of grantIDs we do not care about. This O(n) duration for bached import
jobs adding many organization granted to a single project.
This change removes the unnecesary state query to improve performance.
# Additional Changes
- Add integration tests for import
# Additional Context
- reported internally
This implementation increases parallel write capabilities of the eventstore.
Please have a look at the technical advisories: [05](https://zitadel.com/docs/support/advisory/a10005) and [06](https://zitadel.com/docs/support/advisory/a10006).
The implementation of eventstore.push is rewritten and stored events are migrated to a new table `eventstore.events2`.
If you are using cockroach: make sure that the database user of ZITADEL has `VIEWACTIVITY` grant. This is used to query events.
* fix: org tests
* fix: org tests
* fix: user grant test
* fix: user grant test
* fix: project and project role test
* fix: project grant test
* fix: project grant test
* fix: project member, grant member, app changed tests
* fix: application tests
* fix: application tests
* fix: add oidc app test
* fix: add oidc app test
* fix: add api keys test
* fix: iam policies
* fix: iam and org member tests
* fix: clock skew validation
* revert crypto changes
* fix: tests
* fix project grant member commands
Co-authored-by: Livio Amstutz <livio.a@gmail.com>
