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# Which Problems Are Solved
The event execution system currently uses a projection handler that
subscribes to and processes all events for all instances. This creates a
high static cost because the system over-fetches event data, handling
many events that are not needed by most instances. This inefficiency is
also reflected in high "rows returned" metrics in the database.
# How the Problems Are Solved
Eliminate the use of a project handler. Instead, events for which
"execution targets" are defined, are directly pushed to the queue by the
eventstore. A Router is populated in the Instance object in the authz
middleware.
- By joining the execution targets to the instance, no additional
queries are needed anymore.
- As part of the instance object, execution targets are now cached as
well.
- Events are queued within the same transaction, giving transactional
guarantees on delivery.
- Uses the "insert many fast` variant of River. Multiple jobs are queued
in a single round-trip to the database.
- Fix compatibility with PostgreSQL 15
# Additional Changes
- The signing key was stored as plain-text in the river job payload in
the DB. This violated our [Secrets
Storage](https://zitadel.com/docs/concepts/architecture/secrets#secrets-storage)
principle. This change removed the field and only uses the encrypted
version of the signing key.
- Fixed the target ordering from descending to ascending.
- Some minor linter warnings on the use of `io.WriteString()`.
# Additional Context
- Introduced in https://github.com/zitadel/zitadel/pull/9249
- Closes https://github.com/zitadel/zitadel/issues/10553
- Closes https://github.com/zitadel/zitadel/issues/9832
- Closes https://github.com/zitadel/zitadel/issues/10372
- Closes https://github.com/zitadel/zitadel/issues/10492
---------
Co-authored-by: Stefan Benz <46600784+stebenz@users.noreply.github.com>
(cherry picked from commit a9ebc06c77)
88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
package eventstore
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import (
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"github.com/zitadel/zitadel/internal/eventstore"
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)
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var _ eventstore.Command = (*mockCommand)(nil)
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type mockCommand struct {
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aggregate *eventstore.Aggregate
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payload any
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constraints []*eventstore.UniqueConstraint
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}
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// Aggregate implements [eventstore.Command]
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func (m *mockCommand) Aggregate() *eventstore.Aggregate {
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return m.aggregate
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}
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// Creator implements [eventstore.Command]
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func (m *mockCommand) Creator() string {
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return "creator"
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}
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// Revision implements [eventstore.Command]
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func (m *mockCommand) Revision() uint16 {
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return 1
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}
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// Type implements [eventstore.Command]
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func (m *mockCommand) Type() eventstore.EventType {
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return "event.type"
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}
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// Payload implements [eventstore.Command]
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func (m *mockCommand) Payload() any {
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return m.payload
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}
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// UniqueConstraints implements [eventstore.Command]
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func (m *mockCommand) UniqueConstraints() []*eventstore.UniqueConstraint {
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return m.constraints
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}
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func (e *mockCommand) Fields() []*eventstore.FieldOperation {
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return nil
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}
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func mockEvent(aggregate *eventstore.Aggregate, sequence uint64, payload Payload) eventstore.Event {
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return mockEventType(aggregate, sequence, payload, "event.type")
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}
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func mockEventType(aggregate *eventstore.Aggregate, sequence uint64, payload Payload, typ string) eventstore.Event {
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return &event{
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command: &command{
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InstanceID: aggregate.InstanceID,
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AggregateType: string(aggregate.Type),
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AggregateID: aggregate.ID,
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Owner: aggregate.ResourceOwner,
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Creator: "creator",
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Revision: 1,
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CommandType: typ,
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Payload: payload,
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},
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sequence: sequence,
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}
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}
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func mockAggregate(id string) *eventstore.Aggregate {
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return &eventstore.Aggregate{
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ID: id,
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Type: "type",
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ResourceOwner: "ro",
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InstanceID: "instance",
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Version: "v1",
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}
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}
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func mockAggregateWithInstance(id, instance string) *eventstore.Aggregate {
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return &eventstore.Aggregate{
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ID: id,
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InstanceID: instance,
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Type: "type",
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ResourceOwner: "ro",
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Version: "v1",
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}
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}
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