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https://github.com/hoernschen/dendrite.git
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e93bdd56fd
If old messages build up in the input stream and do not get processed successfully, this can create a significant drift between the stream first sequence and the consumer ack floors, which results in a slow and expensive start-up when interest-based retention is in use. If a message is sat in the stream for 24 hours, it's probably not going to get processed successfully, so let NATS drop them instead. Dendrite can reconcile by fetching missing events later if it needs to. --------- Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
package jetstream
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import (
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"fmt"
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"regexp"
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"time"
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"github.com/nats-io/nats.go"
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)
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const (
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UserID = "user_id"
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RoomID = "room_id"
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EventID = "event_id"
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RoomEventType = "output_room_event_type"
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)
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var (
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InputRoomEvent = "InputRoomEvent"
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InputDeviceListUpdate = "InputDeviceListUpdate"
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InputSigningKeyUpdate = "InputSigningKeyUpdate"
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OutputRoomEvent = "OutputRoomEvent"
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OutputSendToDeviceEvent = "OutputSendToDeviceEvent"
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OutputKeyChangeEvent = "OutputKeyChangeEvent"
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OutputTypingEvent = "OutputTypingEvent"
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OutputClientData = "OutputClientData"
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OutputNotificationData = "OutputNotificationData"
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OutputReceiptEvent = "OutputReceiptEvent"
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OutputStreamEvent = "OutputStreamEvent"
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OutputReadUpdate = "OutputReadUpdate"
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RequestPresence = "GetPresence"
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OutputPresenceEvent = "OutputPresenceEvent"
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InputFulltextReindex = "InputFulltextReindex"
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)
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var safeCharacters = regexp.MustCompile("[^A-Za-z0-9$]+")
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func Tokenise(str string) string {
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return safeCharacters.ReplaceAllString(str, "_")
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}
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func InputRoomEventSubj(roomID string) string {
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return fmt.Sprintf("%s.%s", InputRoomEvent, Tokenise(roomID))
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}
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var streams = []*nats.StreamConfig{
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{
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Name: InputRoomEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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MaxAge: time.Hour * 24,
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},
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{
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Name: InputDeviceListUpdate,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: InputSigningKeyUpdate,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputRoomEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputSendToDeviceEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputKeyChangeEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputTypingEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.MemoryStorage,
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MaxAge: time.Second * 60,
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},
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{
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Name: OutputClientData,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputReceiptEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputNotificationData,
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Retention: nats.InterestPolicy,
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Storage: nats.FileStorage,
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},
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{
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Name: OutputPresenceEvent,
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Retention: nats.InterestPolicy,
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Storage: nats.MemoryStorage,
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MaxAge: time.Minute * 5,
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},
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}
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