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Remodel how device list change IDs are created

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Previously we made them using the offset Kafka supplied.
We don't run Kafka anymore, so now we make the SQL table assign
the change ID via an AUTOINCREMENTing ID. Redesign the
`keyserver_key_changes` table to have `UNIQUE(user_id)` so we
don't accumulate key changes forevermore, we now have at most 1
row per user which contains the highest change ID.

This needs a SQL migration.
This commit is contained in:
Kegan Dougal 2022-01-19 18:59:50 +00:00
parent 31f1810814
commit 5dc360481a
10 changed files with 109 additions and 91 deletions
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12
keyserver/storage/shared/storage.go
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@ -135,14 +135,16 @@ func (d *Database) ClaimKeys(ctx context.Context, userToDeviceToAlgorithm map[st
return result, err
}
func (d *Database) StoreKeyChange(ctx context.Context, partition int32, offset int64, userID string) error {
return d.Writer.Do(nil, nil, func(_ *sql.Tx) error {
return d.KeyChangesTable.InsertKeyChange(ctx, partition, offset, userID)
func (d *Database) StoreKeyChange(ctx context.Context, userID string) (id int64, err error) {
err = d.Writer.Do(nil, nil, func(_ *sql.Tx) error {
id, err = d.KeyChangesTable.InsertKeyChange(ctx, userID)
return err
})
return
}
func (d *Database) KeyChanges(ctx context.Context, partition int32, fromOffset, toOffset int64) (userIDs []string, latestOffset int64, err error) {
return d.KeyChangesTable.SelectKeyChanges(ctx, partition, fromOffset, toOffset)
func (d *Database) KeyChanges(ctx context.Context, fromOffset, toOffset int64) (userIDs []string, latestOffset int64, err error) {
return d.KeyChangesTable.SelectKeyChanges(ctx, fromOffset, toOffset)
}
// StaleDeviceLists returns a list of user IDs ending with the domains provided who have stale device lists.