This originated from https://github.com/mattermost/mattermost/issues/15249.
However, the original idea was discarded https://github.com/mattermost/mattermost/issues/15249#issuecomment-709713065
as being too complicated to implement. Then I had another
idea to implement it just for session objects.
My thinking was that since every single request allocates a new
session struct, it would be good to use a sync.Pool for that.
However, 4 years later, now we know that the primary bottleneck
in app performance comes from websocket event marshalling.
Therefore, while it would be good to do this, it is difficult
to do it correctly (as shown by the numerous racy tests).
Hence, reverting this.
```release-note
NONE
```
* Adds logical deletes to shared channel remotes and remote clusters
Instead of physically deleting the shared channel remote and remote
clusters records when a channel is unshared, a remote uninvited or a
remote cluster is deleted, now those have a logical `DeleteAt` field
that is set.
This allows us to safely restore shared channels between two remote
clusters (as of now resetting the cursor without backfilling their
contents) and to know which connections were established in the past
and now are severed.
* Delete the index in remoteclusters before adding the new column
* Fix bad error check
* Ignore performance counts if notifications are blocked by the device
* Change the endpoint to allow more information
* Add tests and API description
* Remove wrong test
* Address feedback
* Only update the cache when there is no error
* Follow same casing as other props
* use one single endpoint
* Fix tests
* Fix i18n
---------
Co-authored-by: Mattermost Build <build@mattermost.com>
* add ratelimit to /sessions; cap userAgent version length; tests
* add MaxSessionsLimit; remove oldest session first; tests
* can't use slices in 1.20; improve test
* nits
* add GetLRUSessions; move limiting to CreateSession; remove rate limiting
* use queryBuilder
* mysql needs a limit when using offset
* update i18n
* refactor into limitNumberOfSessions; protect createSessionForUserAccessToken
* add comment to GetLRUSessions
* add limit to oauth path; PR comments
It was a good decision in hindsight to keep the public module as 0.x
because this would have been a breaking change again.
https://mattermost.atlassian.net/browse/MM-53032
```release-note
Changed the Go module path from github.com/mattermost/mattermost-server/server/v8 to github.com/mattermost/mattermost/server/v8.
For the public facing module, it's path is also changed from github.com/mattermost/mattermost-server/server/public to github.com/mattermost/mattermost/server/public
```
