mirror of
https://github.com/1f349/dendrite.git
synced 2024-11-09 22:42:58 +00:00
Persistent federation sender queues (PDUs) (#1173)
* Initial work on persistent queues * Update index for event ID and server name * Put things into database (postgres for now) * Duplicate postgres code into sqlite for now just to stop build errors, will fix SQLite soon * Fix table name * Fix index * Fix table name * Use RETURNING because LastInsertID is not supported by postgres * Use functions * Marshal headered event * Don't error on now rows * Don't block if there are PDUs waiting * Try to tidy up JSON * Debug logging * Fix query, use transactions in postgres * Clean up * Rehydrate more opportunistically * Fix SQLite * remove unused types * Review comments * Shuffle things around a bit * Clean up transaction properly * Don't send empty transactions * Reduce unnecessary retries * Count PDUs to make more resilient * Don't stop when there is work to be done * Try to limit wakeups * well this is tedious * Fix race in incomplete transactions * Thread safety on transaction ID/count
This commit is contained in:
parent
6f49758b90
commit
42dd962425
@ -130,8 +130,9 @@ func main() {
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cfg.Database.ServerKey = config.DataSource(fmt.Sprintf("file:%s-serverkey.db", *instanceName))
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cfg.Database.FederationSender = config.DataSource(fmt.Sprintf("file:%s-federationsender.db", *instanceName))
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cfg.Database.AppService = config.DataSource(fmt.Sprintf("file:%s-appservice.db", *instanceName))
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cfg.Database.PublicRoomsAPI = config.DataSource(fmt.Sprintf("file:%s-publicroomsa.db", *instanceName))
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cfg.Database.PublicRoomsAPI = config.DataSource(fmt.Sprintf("file:%s-publicrooms.db", *instanceName))
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cfg.Database.Naffka = config.DataSource(fmt.Sprintf("file:%s-naffka.db", *instanceName))
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cfg.Database.CurrentState = config.DataSource(fmt.Sprintf("file:%s-currentstate.db", *instanceName))
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if err = cfg.Derive(); err != nil {
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panic(err)
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}
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@ -74,7 +74,8 @@ func main() {
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cfg.Database.ServerKey = config.DataSource(fmt.Sprintf("file:%s-serverkey.db", *instanceName))
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cfg.Database.FederationSender = config.DataSource(fmt.Sprintf("file:%s-federationsender.db", *instanceName))
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cfg.Database.AppService = config.DataSource(fmt.Sprintf("file:%s-appservice.db", *instanceName))
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cfg.Database.PublicRoomsAPI = config.DataSource(fmt.Sprintf("file:%s-publicroomsa.db", *instanceName))
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cfg.Database.PublicRoomsAPI = config.DataSource(fmt.Sprintf("file:%s-publicrooms.db", *instanceName))
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cfg.Database.CurrentState = config.DataSource(fmt.Sprintf("file:%s-currentstate.db", *instanceName))
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cfg.Database.Naffka = config.DataSource(fmt.Sprintf("file:%s-naffka.db", *instanceName))
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if err = cfg.Derive(); err != nil {
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panic(err)
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@ -50,7 +50,8 @@ func NewInternalAPI(
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statistics := &types.Statistics{}
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queues := queue.NewOutgoingQueues(
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base.Cfg.Matrix.ServerName, federation, rsAPI, statistics, &queue.SigningInfo{
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federationSenderDB, base.Cfg.Matrix.ServerName, federation, rsAPI, statistics,
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&queue.SigningInfo{
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KeyID: base.Cfg.Matrix.KeyID,
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PrivateKey: base.Cfg.Matrix.PrivateKey,
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ServerName: base.Cfg.Matrix.ServerName,
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@ -18,8 +18,10 @@ import (
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"context"
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"encoding/json"
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"fmt"
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"sync"
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"time"
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"github.com/matrix-org/dendrite/federationsender/storage"
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"github.com/matrix-org/dendrite/federationsender/types"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/gomatrix"
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@ -29,11 +31,14 @@ import (
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"go.uber.org/atomic"
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)
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const maxPDUsPerTransaction = 50
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// destinationQueue is a queue of events for a single destination.
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// It is responsible for sending the events to the destination and
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// ensures that only one request is in flight to a given destination
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// at a time.
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type destinationQueue struct {
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db storage.Database
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signing *SigningInfo
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rsAPI api.RoomserverInternalAPI
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client *gomatrixserverlib.FederationClient // federation client
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@ -42,13 +47,15 @@ type destinationQueue struct {
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running atomic.Bool // is the queue worker running?
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backingOff atomic.Bool // true if we're backing off
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statistics *types.ServerStatistics // statistics about this remote server
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incomingPDUs chan *gomatrixserverlib.HeaderedEvent // PDUs to send
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incomingEDUs chan *gomatrixserverlib.EDU // EDUs to send
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incomingInvites chan *gomatrixserverlib.InviteV2Request // invites to send
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lastTransactionIDs []gomatrixserverlib.TransactionID // last transaction ID
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pendingPDUs []*gomatrixserverlib.HeaderedEvent // owned by backgroundSend
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incomingEDUs chan *gomatrixserverlib.EDU // EDUs to send
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transactionIDMutex sync.Mutex // protects transactionID
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transactionID gomatrixserverlib.TransactionID // last transaction ID
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transactionCount atomic.Int32 // how many events in this transaction so far
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pendingPDUs atomic.Int32 // how many PDUs are waiting to be sent
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pendingEDUs []*gomatrixserverlib.EDU // owned by backgroundSend
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pendingInvites []*gomatrixserverlib.InviteV2Request // owned by backgroundSend
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wakeServerCh chan bool // interrupts idle wait
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retryServerCh chan bool // interrupts backoff
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}
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@ -79,15 +86,47 @@ func (oq *destinationQueue) retry() {
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// Send event adds the event to the pending queue for the destination.
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// If the queue is empty then it starts a background goroutine to
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// start sending events to that destination.
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func (oq *destinationQueue) sendEvent(ev *gomatrixserverlib.HeaderedEvent) {
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func (oq *destinationQueue) sendEvent(nid int64) {
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if oq.statistics.Blacklisted() {
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// If the destination is blacklisted then drop the event.
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return
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}
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// Create a transaction ID. We'll either do this if we don't have
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// one made up yet, or if we've exceeded the number of maximum
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// events allowed in a single tranaction. We'll reset the counter
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// when we do.
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oq.transactionIDMutex.Lock()
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if oq.transactionID == "" || oq.transactionCount.Load() >= maxPDUsPerTransaction {
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now := gomatrixserverlib.AsTimestamp(time.Now())
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oq.transactionID = gomatrixserverlib.TransactionID(fmt.Sprintf("%d-%d", now, oq.statistics.SuccessCount()))
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oq.transactionCount.Store(0)
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}
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oq.transactionIDMutex.Unlock()
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// Create a database entry that associates the given PDU NID with
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// this destination queue. We'll then be able to retrieve the PDU
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// later.
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if err := oq.db.AssociatePDUWithDestination(
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context.TODO(),
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oq.transactionID, // the current transaction ID
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oq.destination, // the destination server name
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[]int64{nid}, // NID from federationsender_queue_json table
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); err != nil {
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log.WithError(err).Errorf("failed to associate PDU NID %d with destination %q", nid, oq.destination)
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return
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}
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// We've successfully added a PDU to the transaction so increase
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// the counter.
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oq.transactionCount.Add(1)
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// If the queue isn't running at this point then start it.
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if !oq.running.Load() {
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go oq.backgroundSend()
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}
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oq.incomingPDUs <- ev
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// Signal that we've sent a new PDU. This will cause the queue to
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// wake up if it's asleep. The return to the Add function will only
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// be 1 if the previous value was 0, e.g. nothing was waiting before.
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if oq.pendingPDUs.Add(1) == 1 {
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oq.wakeServerCh <- true
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}
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}
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// sendEDU adds the EDU event to the pending queue for the destination.
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@ -129,56 +168,48 @@ func (oq *destinationQueue) backgroundSend() {
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defer oq.running.Store(false)
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for {
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// Wait either for incoming events, or until we hit an
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// idle timeout.
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select {
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case pdu := <-oq.incomingPDUs:
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// Ordering of PDUs is important so we add them to the end
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// of the queue and they will all be added to transactions
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// in order.
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oq.pendingPDUs = append(oq.pendingPDUs, pdu)
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// If there are any more things waiting in the channel queue
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// then read them. This is safe because we guarantee only
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// having one goroutine per destination queue, so the channel
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// isn't being consumed anywhere else.
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for len(oq.incomingPDUs) > 0 {
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oq.pendingPDUs = append(oq.pendingPDUs, <-oq.incomingPDUs)
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// If we have nothing to do then wait either for incoming events, or
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// until we hit an idle timeout.
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if oq.pendingPDUs.Load() == 0 && len(oq.pendingEDUs) == 0 && len(oq.pendingInvites) == 0 {
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select {
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case <-oq.wakeServerCh:
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// We were woken up because there are new PDUs waiting in the
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// database.
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case edu := <-oq.incomingEDUs:
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// EDUs are handled in-memory for now. We will try to keep
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// the ordering intact.
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// TODO: Certain EDU types need persistence, e.g. send-to-device
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oq.pendingEDUs = append(oq.pendingEDUs, edu)
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// If there are any more things waiting in the channel queue
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// then read them. This is safe because we guarantee only
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// having one goroutine per destination queue, so the channel
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// isn't being consumed anywhere else.
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for len(oq.incomingEDUs) > 0 {
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oq.pendingEDUs = append(oq.pendingEDUs, <-oq.incomingEDUs)
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}
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case invite := <-oq.incomingInvites:
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// There's no strict ordering requirement for invites like
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// there is for transactions, so we put the invite onto the
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// front of the queue. This means that if an invite that is
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// stuck failing already, that it won't block our new invite
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// from being sent.
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oq.pendingInvites = append(
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[]*gomatrixserverlib.InviteV2Request{invite},
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oq.pendingInvites...,
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)
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// If there are any more things waiting in the channel queue
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// then read them. This is safe because we guarantee only
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// having one goroutine per destination queue, so the channel
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// isn't being consumed anywhere else.
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for len(oq.incomingInvites) > 0 {
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oq.pendingInvites = append(oq.pendingInvites, <-oq.incomingInvites)
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}
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case <-time.After(time.Second * 30):
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// The worker is idle so stop the goroutine. It'll get
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// restarted automatically the next time we have an event to
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// send.
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return
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}
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case edu := <-oq.incomingEDUs:
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// Likewise for EDUs, although we should probably not try
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// too hard with some EDUs (like typing notifications) after
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// a certain amount of time has passed.
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// TODO: think about EDU expiry some more
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oq.pendingEDUs = append(oq.pendingEDUs, edu)
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// If there are any more things waiting in the channel queue
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// then read them. This is safe because we guarantee only
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// having one goroutine per destination queue, so the channel
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// isn't being consumed anywhere else.
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for len(oq.incomingEDUs) > 0 {
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oq.pendingEDUs = append(oq.pendingEDUs, <-oq.incomingEDUs)
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}
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case invite := <-oq.incomingInvites:
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// There's no strict ordering requirement for invites like
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// there is for transactions, so we put the invite onto the
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// front of the queue. This means that if an invite that is
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// stuck failing already, that it won't block our new invite
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// from being sent.
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oq.pendingInvites = append(
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[]*gomatrixserverlib.InviteV2Request{invite},
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oq.pendingInvites...,
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)
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// If there are any more things waiting in the channel queue
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// then read them. This is safe because we guarantee only
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// having one goroutine per destination queue, so the channel
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// isn't being consumed anywhere else.
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for len(oq.incomingInvites) > 0 {
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oq.pendingInvites = append(oq.pendingInvites, <-oq.incomingInvites)
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}
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case <-time.After(time.Second * 30):
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// The worker is idle so stop the goroutine. It'll
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// get restarted automatically the next time we
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// get an event.
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return
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}
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// If we are backing off this server then wait for the
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@ -193,47 +224,31 @@ func (oq *destinationQueue) backgroundSend() {
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oq.backingOff.Store(false)
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}
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// How many things do we have waiting?
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numPDUs := len(oq.pendingPDUs)
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numEDUs := len(oq.pendingEDUs)
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numInvites := len(oq.pendingInvites)
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// If we have pending PDUs or EDUs then construct a transaction.
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if numPDUs > 0 || numEDUs > 0 {
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if oq.pendingPDUs.Load() > 0 || len(oq.pendingEDUs) > 0 {
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// Try sending the next transaction and see what happens.
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transaction, terr := oq.nextTransaction(oq.pendingPDUs, oq.pendingEDUs, oq.statistics.SuccessCount())
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transaction, terr := oq.nextTransaction(oq.pendingEDUs)
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if terr != nil {
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// We failed to send the transaction.
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if giveUp := oq.statistics.Failure(); giveUp {
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// It's been suggested that we should give up because
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// the backoff has exceeded a maximum allowable value.
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// It's been suggested that we should give up because the backoff
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// has exceeded a maximum allowable value. Clean up the in-memory
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// buffers at this point. The PDU clean-up is already on a defer.
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oq.cleanPendingEDUs()
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oq.cleanPendingInvites()
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return
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}
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} else if transaction {
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// If we successfully sent the transaction then clear out
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// the pending events and EDUs.
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// the pending events and EDUs, and wipe our transaction ID.
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oq.statistics.Success()
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// Reallocate so that the underlying arrays can be GC'd, as
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// opposed to growing forever.
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for i := 0; i < numPDUs; i++ {
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oq.pendingPDUs[i] = nil
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}
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for i := 0; i < numEDUs; i++ {
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oq.pendingEDUs[i] = nil
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}
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oq.pendingPDUs = append(
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[]*gomatrixserverlib.HeaderedEvent{},
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oq.pendingPDUs[numPDUs:]...,
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)
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oq.pendingEDUs = append(
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[]*gomatrixserverlib.EDU{},
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oq.pendingEDUs[numEDUs:]...,
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)
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// Clean up the in-memory buffers.
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oq.cleanPendingEDUs()
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}
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}
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// Try sending the next invite and see what happens.
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if numInvites > 0 {
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if len(oq.pendingInvites) > 0 {
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sent, ierr := oq.nextInvites(oq.pendingInvites)
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if ierr != nil {
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// We failed to send the transaction so increase the
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@ -249,59 +264,117 @@ func (oq *destinationQueue) backgroundSend() {
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oq.statistics.Success()
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// Reallocate so that the underlying array can be GC'd, as
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// opposed to growing forever.
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oq.pendingInvites = append(
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[]*gomatrixserverlib.InviteV2Request{},
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oq.pendingInvites[sent:]...,
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)
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oq.cleanPendingInvites()
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}
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}
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}
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}
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// cleanPendingEDUs cleans out the pending EDU buffer, removing
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// all references so that the underlying objects can be GC'd.
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func (oq *destinationQueue) cleanPendingEDUs() {
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for i := 0; i < len(oq.pendingEDUs); i++ {
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oq.pendingEDUs[i] = nil
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}
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oq.pendingEDUs = []*gomatrixserverlib.EDU{}
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}
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// cleanPendingInvites cleans out the pending invite buffer,
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// removing all references so that the underlying objects can
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// be GC'd.
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func (oq *destinationQueue) cleanPendingInvites() {
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for i := 0; i < len(oq.pendingInvites); i++ {
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oq.pendingInvites[i] = nil
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}
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oq.pendingInvites = []*gomatrixserverlib.InviteV2Request{}
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}
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// nextTransaction creates a new transaction from the pending event
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// queue and sends it. Returns true if a transaction was sent or
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// false otherwise.
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func (oq *destinationQueue) nextTransaction(
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pendingPDUs []*gomatrixserverlib.HeaderedEvent,
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pendingEDUs []*gomatrixserverlib.EDU,
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sentCounter uint32,
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) (bool, error) {
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// Before we do anything, we need to roll over the transaction
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// ID that is being used to coalesce events into the next TX.
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// Otherwise it's possible that we'll pick up an incomplete
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// transaction and end up nuking the rest of the events at the
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// cleanup stage.
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oq.transactionIDMutex.Lock()
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oq.transactionID = ""
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oq.transactionIDMutex.Unlock()
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oq.transactionCount.Store(0)
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// Create the transaction.
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t := gomatrixserverlib.Transaction{
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PDUs: []json.RawMessage{},
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EDUs: []gomatrixserverlib.EDU{},
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}
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now := gomatrixserverlib.AsTimestamp(time.Now())
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t.TransactionID = gomatrixserverlib.TransactionID(fmt.Sprintf("%d-%d", now, sentCounter))
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t.Origin = oq.origin
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t.Destination = oq.destination
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t.OriginServerTS = now
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t.PreviousIDs = oq.lastTransactionIDs
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if t.PreviousIDs == nil {
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t.PreviousIDs = []gomatrixserverlib.TransactionID{}
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t.OriginServerTS = gomatrixserverlib.AsTimestamp(time.Now())
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// Ask the database for any pending PDUs from the next transaction.
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// maxPDUsPerTransaction is an upper limit but we probably won't
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// actually retrieve that many events.
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txid, pdus, err := oq.db.GetNextTransactionPDUs(
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context.TODO(), // context
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oq.destination, // server name
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maxPDUsPerTransaction, // max events to retrieve
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)
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if err != nil {
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log.WithError(err).Errorf("failed to get next transaction PDUs for server %q", oq.destination)
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return false, fmt.Errorf("oq.db.GetNextTransactionPDUs: %w", err)
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}
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oq.lastTransactionIDs = []gomatrixserverlib.TransactionID{t.TransactionID}
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// If we didn't get anything from the database and there are no
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// pending EDUs then there's nothing to do - stop here.
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if len(pdus) == 0 && len(pendingEDUs) == 0 {
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return false, nil
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}
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for _, pdu := range pendingPDUs {
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// Pick out the transaction ID from the database. If we didn't
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// get a transaction ID (i.e. because there are no PDUs but only
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// EDUs) then generate a transaction ID.
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t.TransactionID = txid
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if t.TransactionID == "" {
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now := gomatrixserverlib.AsTimestamp(time.Now())
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t.TransactionID = gomatrixserverlib.TransactionID(fmt.Sprintf("%d-%d", now, oq.statistics.SuccessCount()))
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}
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// Go through PDUs that we retrieved from the database, if any,
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// and add them into the transaction.
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for _, pdu := range pdus {
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// Append the JSON of the event, since this is a json.RawMessage type in the
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// gomatrixserverlib.Transaction struct
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t.PDUs = append(t.PDUs, (*pdu).JSON())
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}
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// Do the same for pending EDUS in the queue.
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for _, edu := range pendingEDUs {
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t.EDUs = append(t.EDUs, *edu)
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}
|
||||
|
||||
logrus.WithField("server_name", oq.destination).Infof("Sending transaction %q containing %d PDUs, %d EDUs", t.TransactionID, len(t.PDUs), len(t.EDUs))
|
||||
|
||||
// Try to send the transaction to the destination server.
|
||||
// TODO: we should check for 500-ish fails vs 400-ish here,
|
||||
// since we shouldn't queue things indefinitely in response
|
||||
// to a 400-ish error
|
||||
_, err := oq.client.SendTransaction(context.TODO(), t)
|
||||
_, err = oq.client.SendTransaction(context.TODO(), t)
|
||||
switch e := err.(type) {
|
||||
case nil:
|
||||
// No error was returned so the transaction looks to have
|
||||
// been successfully sent.
|
||||
oq.pendingPDUs.Sub(int32(len(t.PDUs)))
|
||||
// Clean up the transaction in the database.
|
||||
if err = oq.db.CleanTransactionPDUs(
|
||||
context.TODO(),
|
||||
t.Destination,
|
||||
t.TransactionID,
|
||||
); err != nil {
|
||||
log.WithError(err).Errorf("failed to clean transaction %q for server %q", t.TransactionID, t.Destination)
|
||||
}
|
||||
return true, nil
|
||||
case gomatrix.HTTPError:
|
||||
// We received a HTTP error back. In this instance we only
|
||||
|
@ -15,10 +15,13 @@
|
||||
package queue
|
||||
|
||||
import (
|
||||
"context"
|
||||
"crypto/ed25519"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
"github.com/matrix-org/dendrite/federationsender/storage"
|
||||
"github.com/matrix-org/dendrite/federationsender/types"
|
||||
"github.com/matrix-org/dendrite/roomserver/api"
|
||||
"github.com/matrix-org/gomatrixserverlib"
|
||||
@ -29,6 +32,7 @@ import (
|
||||
// OutgoingQueues is a collection of queues for sending transactions to other
|
||||
// matrix servers
|
||||
type OutgoingQueues struct {
|
||||
db storage.Database
|
||||
rsAPI api.RoomserverInternalAPI
|
||||
origin gomatrixserverlib.ServerName
|
||||
client *gomatrixserverlib.FederationClient
|
||||
@ -40,6 +44,7 @@ type OutgoingQueues struct {
|
||||
|
||||
// NewOutgoingQueues makes a new OutgoingQueues
|
||||
func NewOutgoingQueues(
|
||||
db storage.Database,
|
||||
origin gomatrixserverlib.ServerName,
|
||||
client *gomatrixserverlib.FederationClient,
|
||||
rsAPI api.RoomserverInternalAPI,
|
||||
@ -47,6 +52,7 @@ func NewOutgoingQueues(
|
||||
signing *SigningInfo,
|
||||
) *OutgoingQueues {
|
||||
return &OutgoingQueues{
|
||||
db: db,
|
||||
rsAPI: rsAPI,
|
||||
origin: origin,
|
||||
client: client,
|
||||
@ -76,14 +82,15 @@ func (oqs *OutgoingQueues) getQueue(destination gomatrixserverlib.ServerName) *d
|
||||
oq := oqs.queues[destination]
|
||||
if oq == nil {
|
||||
oq = &destinationQueue{
|
||||
db: oqs.db,
|
||||
rsAPI: oqs.rsAPI,
|
||||
origin: oqs.origin,
|
||||
destination: destination,
|
||||
client: oqs.client,
|
||||
statistics: oqs.statistics.ForServer(destination),
|
||||
incomingPDUs: make(chan *gomatrixserverlib.HeaderedEvent, 128),
|
||||
incomingEDUs: make(chan *gomatrixserverlib.EDU, 128),
|
||||
incomingInvites: make(chan *gomatrixserverlib.InviteV2Request, 128),
|
||||
wakeServerCh: make(chan bool, 128),
|
||||
retryServerCh: make(chan bool),
|
||||
signing: oqs.signing,
|
||||
}
|
||||
@ -115,8 +122,18 @@ func (oqs *OutgoingQueues) SendEvent(
|
||||
"destinations": destinations, "event": ev.EventID(),
|
||||
}).Info("Sending event")
|
||||
|
||||
headeredJSON, err := json.Marshal(ev)
|
||||
if err != nil {
|
||||
return fmt.Errorf("json.Marshal: %w", err)
|
||||
}
|
||||
|
||||
nid, err := oqs.db.StoreJSON(context.TODO(), string(headeredJSON))
|
||||
if err != nil {
|
||||
return fmt.Errorf("sendevent: oqs.db.StoreJSON: %w", err)
|
||||
}
|
||||
|
||||
for _, destination := range destinations {
|
||||
oqs.getQueue(destination).sendEvent(ev)
|
||||
oqs.getQueue(destination).sendEvent(nid)
|
||||
}
|
||||
|
||||
return nil
|
||||
|
@ -19,10 +19,15 @@ import (
|
||||
|
||||
"github.com/matrix-org/dendrite/federationsender/types"
|
||||
"github.com/matrix-org/dendrite/internal"
|
||||
"github.com/matrix-org/gomatrixserverlib"
|
||||
)
|
||||
|
||||
type Database interface {
|
||||
internal.PartitionStorer
|
||||
UpdateRoom(ctx context.Context, roomID, oldEventID, newEventID string, addHosts []types.JoinedHost, removeHosts []string) (joinedHosts []types.JoinedHost, err error)
|
||||
GetJoinedHosts(ctx context.Context, roomID string) ([]types.JoinedHost, error)
|
||||
StoreJSON(ctx context.Context, js string) (int64, error)
|
||||
AssociatePDUWithDestination(ctx context.Context, transactionID gomatrixserverlib.TransactionID, serverName gomatrixserverlib.ServerName, nids []int64) error
|
||||
GetNextTransactionPDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, limit int) (gomatrixserverlib.TransactionID, []*gomatrixserverlib.HeaderedEvent, error)
|
||||
CleanTransactionPDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, transactionID gomatrixserverlib.TransactionID) error
|
||||
}
|
||||
|
111
federationsender/storage/postgres/queue_json_table.go
Normal file
111
federationsender/storage/postgres/queue_json_table.go
Normal file
@ -0,0 +1,111 @@
|
||||
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package postgres
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
|
||||
"github.com/lib/pq"
|
||||
"github.com/matrix-org/dendrite/internal"
|
||||
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||||
)
|
||||
|
||||
const queueJSONSchema = `
|
||||
-- The federationsender_queue_json table contains event contents that
|
||||
-- we failed to send.
|
||||
CREATE TABLE IF NOT EXISTS federationsender_queue_json (
|
||||
-- The JSON NID. This allows the federationsender_queue_retry table to
|
||||
-- cross-reference to find the JSON blob.
|
||||
json_nid BIGSERIAL,
|
||||
-- The JSON body. Text so that we preserve UTF-8.
|
||||
json_body TEXT NOT NULL
|
||||
);
|
||||
`
|
||||
|
||||
const insertJSONSQL = "" +
|
||||
"INSERT INTO federationsender_queue_json (json_body)" +
|
||||
" VALUES ($1)" +
|
||||
" RETURNING json_nid"
|
||||
|
||||
const deleteJSONSQL = "" +
|
||||
"DELETE FROM federationsender_queue_json WHERE json_nid = ANY($1)"
|
||||
|
||||
const selectJSONSQL = "" +
|
||||
"SELECT json_nid, json_body FROM federationsender_queue_json" +
|
||||
" WHERE json_nid = ANY($1)"
|
||||
|
||||
type queueJSONStatements struct {
|
||||
insertJSONStmt *sql.Stmt
|
||||
deleteJSONStmt *sql.Stmt
|
||||
selectJSONStmt *sql.Stmt
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) prepare(db *sql.DB) (err error) {
|
||||
_, err = db.Exec(queueJSONSchema)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if s.insertJSONStmt, err = db.Prepare(insertJSONSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.deleteJSONStmt, err = db.Prepare(deleteJSONSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectJSONStmt, err = db.Prepare(selectJSONSQL); err != nil {
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) insertQueueJSON(
|
||||
ctx context.Context, txn *sql.Tx, json string,
|
||||
) (int64, error) {
|
||||
stmt := sqlutil.TxStmt(txn, s.insertJSONStmt)
|
||||
var lastid int64
|
||||
if err := stmt.QueryRowContext(ctx, json).Scan(&lastid); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return lastid, nil
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) deleteQueueJSON(
|
||||
ctx context.Context, txn *sql.Tx, nids []int64,
|
||||
) error {
|
||||
stmt := sqlutil.TxStmt(txn, s.deleteJSONStmt)
|
||||
_, err := stmt.ExecContext(ctx, pq.Int64Array(nids))
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) selectQueueJSON(
|
||||
ctx context.Context, txn *sql.Tx, jsonNIDs []int64,
|
||||
) (map[int64][]byte, error) {
|
||||
blobs := map[int64][]byte{}
|
||||
stmt := sqlutil.TxStmt(txn, s.selectJSONStmt)
|
||||
rows, err := stmt.QueryContext(ctx, pq.Int64Array(jsonNIDs))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer internal.CloseAndLogIfError(ctx, rows, "selectJSON: rows.close() failed")
|
||||
for rows.Next() {
|
||||
var nid int64
|
||||
var blob []byte
|
||||
if err = rows.Scan(&nid, &blob); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
blobs[nid] = blob
|
||||
}
|
||||
return blobs, err
|
||||
}
|
169
federationsender/storage/postgres/queue_pdus_table.go
Normal file
169
federationsender/storage/postgres/queue_pdus_table.go
Normal file
@ -0,0 +1,169 @@
|
||||
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package postgres
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
|
||||
"github.com/matrix-org/dendrite/internal"
|
||||
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||||
"github.com/matrix-org/gomatrixserverlib"
|
||||
)
|
||||
|
||||
const queuePDUsSchema = `
|
||||
CREATE TABLE IF NOT EXISTS federationsender_queue_pdus (
|
||||
-- The transaction ID that was generated before persisting the event.
|
||||
transaction_id TEXT NOT NULL,
|
||||
-- The destination server that we will send the event to.
|
||||
server_name TEXT NOT NULL,
|
||||
-- The JSON NID from the federationsender_queue_pdus_json table.
|
||||
json_nid BIGINT NOT NULL
|
||||
);
|
||||
|
||||
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_pdus_pdus_json_nid_idx
|
||||
ON federationsender_queue_pdus (json_nid, server_name);
|
||||
`
|
||||
|
||||
const insertQueuePDUSQL = "" +
|
||||
"INSERT INTO federationsender_queue_pdus (transaction_id, server_name, json_nid)" +
|
||||
" VALUES ($1, $2, $3)"
|
||||
|
||||
const deleteQueueTransactionPDUsSQL = "" +
|
||||
"DELETE FROM federationsender_queue_pdus WHERE server_name = $1 AND transaction_id = $2"
|
||||
|
||||
const selectQueueNextTransactionIDSQL = "" +
|
||||
"SELECT transaction_id FROM federationsender_queue_pdus" +
|
||||
" WHERE server_name = $1" +
|
||||
" ORDER BY transaction_id ASC" +
|
||||
" LIMIT 1"
|
||||
|
||||
const selectQueuePDUsByTransactionSQL = "" +
|
||||
"SELECT json_nid FROM federationsender_queue_pdus" +
|
||||
" WHERE server_name = $1 AND transaction_id = $2" +
|
||||
" LIMIT $3"
|
||||
|
||||
const selectQueueReferenceJSONCountSQL = "" +
|
||||
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
|
||||
" WHERE json_nid = $1"
|
||||
|
||||
type queuePDUsStatements struct {
|
||||
insertQueuePDUStmt *sql.Stmt
|
||||
deleteQueueTransactionPDUsStmt *sql.Stmt
|
||||
selectQueueNextTransactionIDStmt *sql.Stmt
|
||||
selectQueuePDUsByTransactionStmt *sql.Stmt
|
||||
selectQueueReferenceJSONCountStmt *sql.Stmt
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) prepare(db *sql.DB) (err error) {
|
||||
_, err = db.Exec(queuePDUsSchema)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if s.insertQueuePDUStmt, err = db.Prepare(insertQueuePDUSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.deleteQueueTransactionPDUsStmt, err = db.Prepare(deleteQueueTransactionPDUsSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectQueueNextTransactionIDStmt, err = db.Prepare(selectQueueNextTransactionIDSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectQueuePDUsByTransactionStmt, err = db.Prepare(selectQueuePDUsByTransactionSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectQueueReferenceJSONCountStmt, err = db.Prepare(selectQueueReferenceJSONCountSQL); err != nil {
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) insertQueuePDU(
|
||||
ctx context.Context,
|
||||
txn *sql.Tx,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
nid int64,
|
||||
) error {
|
||||
stmt := sqlutil.TxStmt(txn, s.insertQueuePDUStmt)
|
||||
_, err := stmt.ExecContext(
|
||||
ctx,
|
||||
transactionID, // the transaction ID that we initially attempted
|
||||
serverName, // destination server name
|
||||
nid, // JSON blob NID
|
||||
)
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) deleteQueueTransaction(
|
||||
ctx context.Context, txn *sql.Tx,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
) error {
|
||||
stmt := sqlutil.TxStmt(txn, s.deleteQueueTransactionPDUsStmt)
|
||||
_, err := stmt.ExecContext(ctx, serverName, transactionID)
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) selectQueueNextTransactionID(
|
||||
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
|
||||
) (gomatrixserverlib.TransactionID, error) {
|
||||
var transactionID gomatrixserverlib.TransactionID
|
||||
stmt := sqlutil.TxStmt(txn, s.selectQueueNextTransactionIDStmt)
|
||||
err := stmt.QueryRowContext(ctx, serverName).Scan(&transactionID)
|
||||
if err == sql.ErrNoRows {
|
||||
return "", nil
|
||||
}
|
||||
return transactionID, err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) selectQueueReferenceJSONCount(
|
||||
ctx context.Context, txn *sql.Tx, jsonNID int64,
|
||||
) (int64, error) {
|
||||
var count int64
|
||||
stmt := sqlutil.TxStmt(txn, s.selectQueueReferenceJSONCountStmt)
|
||||
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
|
||||
if err == sql.ErrNoRows {
|
||||
// It's acceptable for there to be no rows referencing a given
|
||||
// JSON NID but it's not an error condition. Just return as if
|
||||
// there's a zero count.
|
||||
return 0, nil
|
||||
}
|
||||
return count, err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) selectQueuePDUs(
|
||||
ctx context.Context, txn *sql.Tx,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
limit int,
|
||||
) ([]int64, error) {
|
||||
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUsByTransactionStmt)
|
||||
rows, err := stmt.QueryContext(ctx, serverName, transactionID, limit)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
|
||||
var result []int64
|
||||
for rows.Next() {
|
||||
var nid int64
|
||||
if err = rows.Scan(&nid); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
result = append(result, nid)
|
||||
}
|
||||
|
||||
return result, rows.Err()
|
||||
}
|
@ -18,15 +18,20 @@ package postgres
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
|
||||
"github.com/matrix-org/dendrite/federationsender/types"
|
||||
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||||
"github.com/matrix-org/gomatrixserverlib"
|
||||
)
|
||||
|
||||
// Database stores information needed by the federation sender
|
||||
type Database struct {
|
||||
joinedHostsStatements
|
||||
roomStatements
|
||||
queuePDUsStatements
|
||||
queueJSONStatements
|
||||
sqlutil.PartitionOffsetStatements
|
||||
db *sql.DB
|
||||
}
|
||||
@ -55,6 +60,14 @@ func (d *Database) prepare() error {
|
||||
return err
|
||||
}
|
||||
|
||||
if err = d.queuePDUsStatements.prepare(d.db); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err = d.queueJSONStatements.prepare(d.db); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return d.PartitionOffsetStatements.Prepare(d.db, "federationsender")
|
||||
}
|
||||
|
||||
@ -120,3 +133,125 @@ func (d *Database) GetJoinedHosts(
|
||||
) ([]types.JoinedHost, error) {
|
||||
return d.selectJoinedHosts(ctx, roomID)
|
||||
}
|
||||
|
||||
// StoreJSON adds a JSON blob into the queue JSON table and returns
|
||||
// a NID. The NID will then be used when inserting the per-destination
|
||||
// metadata entries.
|
||||
func (d *Database) StoreJSON(
|
||||
ctx context.Context, js string,
|
||||
) (int64, error) {
|
||||
nid, err := d.insertQueueJSON(ctx, nil, js)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("d.insertQueueJSON: %w", err)
|
||||
}
|
||||
return nid, nil
|
||||
}
|
||||
|
||||
// AssociatePDUWithDestination creates an association that the
|
||||
// destination queues will use to determine which JSON blobs to send
|
||||
// to which servers.
|
||||
func (d *Database) AssociatePDUWithDestination(
|
||||
ctx context.Context,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
nids []int64,
|
||||
) error {
|
||||
return sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
|
||||
for _, nid := range nids {
|
||||
if err := d.insertQueuePDU(
|
||||
ctx, // context
|
||||
txn, // SQL transaction
|
||||
transactionID, // transaction ID
|
||||
serverName, // destination server name
|
||||
nid, // NID from the federationsender_queue_json table
|
||||
); err != nil {
|
||||
return fmt.Errorf("d.insertQueueRetryStmt.ExecContext: %w", err)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
||||
// GetNextTransactionPDUs retrieves events from the database for
|
||||
// the next pending transaction, up to the limit specified.
|
||||
func (d *Database) GetNextTransactionPDUs(
|
||||
ctx context.Context,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
limit int,
|
||||
) (
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
events []*gomatrixserverlib.HeaderedEvent,
|
||||
err error,
|
||||
) {
|
||||
err = sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
|
||||
transactionID, err = d.selectQueueNextTransactionID(ctx, txn, serverName)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueueNextTransactionID: %w", err)
|
||||
}
|
||||
|
||||
if transactionID == "" {
|
||||
return nil
|
||||
}
|
||||
|
||||
nids, err := d.selectQueuePDUs(ctx, txn, serverName, transactionID, limit)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueuePDUs: %w", err)
|
||||
}
|
||||
|
||||
blobs, err := d.selectQueueJSON(ctx, txn, nids)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectJSON: %w", err)
|
||||
}
|
||||
|
||||
for _, blob := range blobs {
|
||||
var event gomatrixserverlib.HeaderedEvent
|
||||
if err := json.Unmarshal(blob, &event); err != nil {
|
||||
return fmt.Errorf("json.Unmarshal: %w", err)
|
||||
}
|
||||
events = append(events, &event)
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// CleanTransactionPDUs cleans up all associated events for a
|
||||
// given transaction. This is done when the transaction was sent
|
||||
// successfully.
|
||||
func (d *Database) CleanTransactionPDUs(
|
||||
ctx context.Context,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
) error {
|
||||
return sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
|
||||
nids, err := d.selectQueuePDUs(ctx, txn, serverName, transactionID, 50)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueuePDUs: %w", err)
|
||||
}
|
||||
|
||||
if err = d.deleteQueueTransaction(ctx, txn, serverName, transactionID); err != nil {
|
||||
return fmt.Errorf("d.deleteQueueTransaction: %w", err)
|
||||
}
|
||||
|
||||
var count int64
|
||||
var deleteNIDs []int64
|
||||
for _, nid := range nids {
|
||||
count, err = d.selectQueueReferenceJSONCount(ctx, txn, nid)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueueReferenceJSONCount: %w", err)
|
||||
}
|
||||
if count == 0 {
|
||||
deleteNIDs = append(deleteNIDs, nid)
|
||||
}
|
||||
}
|
||||
|
||||
if len(deleteNIDs) > 0 {
|
||||
if err = d.deleteQueueJSON(ctx, txn, deleteNIDs); err != nil {
|
||||
return fmt.Errorf("d.deleteQueueJSON: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
132
federationsender/storage/sqlite3/queue_json_table.go
Normal file
132
federationsender/storage/sqlite3/queue_json_table.go
Normal file
@ -0,0 +1,132 @@
|
||||
// Copyright 2017-2018 New Vector Ltd
|
||||
// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package sqlite3
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/matrix-org/dendrite/internal"
|
||||
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||||
)
|
||||
|
||||
const queueJSONSchema = `
|
||||
-- The queue_retry_json table contains event contents that
|
||||
-- we failed to send.
|
||||
CREATE TABLE IF NOT EXISTS federationsender_queue_json (
|
||||
-- The JSON NID. This allows the federationsender_queue_retry table to
|
||||
-- cross-reference to find the JSON blob.
|
||||
json_nid INTEGER PRIMARY KEY AUTOINCREMENT,
|
||||
-- The JSON body. Text so that we preserve UTF-8.
|
||||
json_body TEXT NOT NULL
|
||||
);
|
||||
`
|
||||
|
||||
const insertJSONSQL = "" +
|
||||
"INSERT INTO federationsender_queue_json (json_body)" +
|
||||
" VALUES ($1)"
|
||||
|
||||
const deleteJSONSQL = "" +
|
||||
"DELETE FROM federationsender_queue_json WHERE json_nid IN ($1)"
|
||||
|
||||
const selectJSONSQL = "" +
|
||||
"SELECT json_nid, json_body FROM federationsender_queue_json" +
|
||||
" WHERE json_nid IN ($1)"
|
||||
|
||||
type queueJSONStatements struct {
|
||||
insertJSONStmt *sql.Stmt
|
||||
//deleteJSONStmt *sql.Stmt - prepared at runtime due to variadic
|
||||
//selectJSONStmt *sql.Stmt - prepared at runtime due to variadic
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) prepare(db *sql.DB) (err error) {
|
||||
_, err = db.Exec(queueJSONSchema)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if s.insertJSONStmt, err = db.Prepare(insertJSONSQL); err != nil {
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) insertQueueJSON(
|
||||
ctx context.Context, txn *sql.Tx, json string,
|
||||
) (int64, error) {
|
||||
stmt := sqlutil.TxStmt(txn, s.insertJSONStmt)
|
||||
res, err := stmt.ExecContext(ctx, json)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("stmt.QueryContext: %w", err)
|
||||
}
|
||||
lastid, err := res.LastInsertId()
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("res.LastInsertId: %w", err)
|
||||
}
|
||||
return lastid, nil
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) deleteQueueJSON(
|
||||
ctx context.Context, txn *sql.Tx, nids []int64,
|
||||
) error {
|
||||
deleteSQL := strings.Replace(deleteJSONSQL, "($1)", sqlutil.QueryVariadic(len(nids)), 1)
|
||||
deleteStmt, err := txn.Prepare(deleteSQL)
|
||||
if err != nil {
|
||||
return fmt.Errorf("s.deleteQueueJSON s.db.Prepare: %w", err)
|
||||
}
|
||||
|
||||
iNIDs := make([]interface{}, len(nids))
|
||||
for k, v := range nids {
|
||||
iNIDs[k] = v
|
||||
}
|
||||
|
||||
stmt := sqlutil.TxStmt(txn, deleteStmt)
|
||||
_, err = stmt.ExecContext(ctx, iNIDs...)
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *queueJSONStatements) selectQueueJSON(
|
||||
ctx context.Context, txn *sql.Tx, jsonNIDs []int64,
|
||||
) (map[int64][]byte, error) {
|
||||
selectSQL := strings.Replace(selectJSONSQL, "($1)", sqlutil.QueryVariadic(len(jsonNIDs)), 1)
|
||||
selectStmt, err := txn.Prepare(selectSQL)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("s.selectQueueJSON s.db.Prepare: %w", err)
|
||||
}
|
||||
|
||||
iNIDs := make([]interface{}, len(jsonNIDs))
|
||||
for k, v := range jsonNIDs {
|
||||
iNIDs[k] = v
|
||||
}
|
||||
|
||||
blobs := map[int64][]byte{}
|
||||
stmt := sqlutil.TxStmt(txn, selectStmt)
|
||||
rows, err := stmt.QueryContext(ctx, iNIDs...)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("s.selectQueueJSON stmt.QueryContext: %w", err)
|
||||
}
|
||||
defer internal.CloseAndLogIfError(ctx, rows, "selectJSON: rows.close() failed")
|
||||
for rows.Next() {
|
||||
var nid int64
|
||||
var blob []byte
|
||||
if err = rows.Scan(&nid, &blob); err != nil {
|
||||
return nil, fmt.Errorf("s.selectQueueJSON rows.Scan: %w", err)
|
||||
}
|
||||
blobs[nid] = blob
|
||||
}
|
||||
return blobs, err
|
||||
}
|
167
federationsender/storage/sqlite3/queue_pdus_table.go
Normal file
167
federationsender/storage/sqlite3/queue_pdus_table.go
Normal file
@ -0,0 +1,167 @@
|
||||
// Copyright 2017-2018 New Vector Ltd
|
||||
// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package sqlite3
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
|
||||
"github.com/matrix-org/dendrite/internal"
|
||||
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||||
"github.com/matrix-org/gomatrixserverlib"
|
||||
)
|
||||
|
||||
const queuePDUsSchema = `
|
||||
CREATE TABLE IF NOT EXISTS federationsender_queue_pdus (
|
||||
-- The transaction ID that was generated before persisting the event.
|
||||
transaction_id TEXT NOT NULL,
|
||||
-- The domain part of the user ID the m.room.member event is for.
|
||||
server_name TEXT NOT NULL,
|
||||
-- The JSON NID from the federationsender_queue_pdus_json table.
|
||||
json_nid BIGINT NOT NULL
|
||||
);
|
||||
|
||||
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_pdus_pdus_json_nid_idx
|
||||
ON federationsender_queue_pdus (json_nid, server_name);
|
||||
`
|
||||
|
||||
const insertQueuePDUSQL = "" +
|
||||
"INSERT INTO federationsender_queue_pdus (transaction_id, server_name, json_nid)" +
|
||||
" VALUES ($1, $2, $3)"
|
||||
|
||||
const deleteQueueTransactionPDUsSQL = "" +
|
||||
"DELETE FROM federationsender_queue_pdus WHERE server_name = $1 AND transaction_id = $2"
|
||||
|
||||
const selectQueueNextTransactionIDSQL = "" +
|
||||
"SELECT transaction_id FROM federationsender_queue_pdus" +
|
||||
" WHERE server_name = $1" +
|
||||
" ORDER BY transaction_id ASC" +
|
||||
" LIMIT 1"
|
||||
|
||||
const selectQueuePDUsByTransactionSQL = "" +
|
||||
"SELECT json_nid FROM federationsender_queue_pdus" +
|
||||
" WHERE server_name = $1 AND transaction_id = $2" +
|
||||
" LIMIT $3"
|
||||
|
||||
const selectQueueReferenceJSONCountSQL = "" +
|
||||
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
|
||||
" WHERE json_nid = $1"
|
||||
|
||||
type queuePDUsStatements struct {
|
||||
insertQueuePDUStmt *sql.Stmt
|
||||
deleteQueueTransactionPDUsStmt *sql.Stmt
|
||||
selectQueueNextTransactionIDStmt *sql.Stmt
|
||||
selectQueuePDUsByTransactionStmt *sql.Stmt
|
||||
selectQueueReferenceJSONCountStmt *sql.Stmt
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) prepare(db *sql.DB) (err error) {
|
||||
_, err = db.Exec(queuePDUsSchema)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if s.insertQueuePDUStmt, err = db.Prepare(insertQueuePDUSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.deleteQueueTransactionPDUsStmt, err = db.Prepare(deleteQueueTransactionPDUsSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectQueueNextTransactionIDStmt, err = db.Prepare(selectQueueNextTransactionIDSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectQueuePDUsByTransactionStmt, err = db.Prepare(selectQueuePDUsByTransactionSQL); err != nil {
|
||||
return
|
||||
}
|
||||
if s.selectQueueReferenceJSONCountStmt, err = db.Prepare(selectQueueReferenceJSONCountSQL); err != nil {
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) insertQueuePDU(
|
||||
ctx context.Context,
|
||||
txn *sql.Tx,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
nid int64,
|
||||
) error {
|
||||
stmt := sqlutil.TxStmt(txn, s.insertQueuePDUStmt)
|
||||
_, err := stmt.ExecContext(
|
||||
ctx,
|
||||
transactionID, // the transaction ID that we initially attempted
|
||||
serverName, // destination server name
|
||||
nid, // JSON blob NID
|
||||
)
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) deleteQueueTransaction(
|
||||
ctx context.Context, txn *sql.Tx,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
) error {
|
||||
stmt := sqlutil.TxStmt(txn, s.deleteQueueTransactionPDUsStmt)
|
||||
_, err := stmt.ExecContext(ctx, serverName, transactionID)
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) selectQueueNextTransactionID(
|
||||
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
|
||||
) (gomatrixserverlib.TransactionID, error) {
|
||||
var transactionID gomatrixserverlib.TransactionID
|
||||
stmt := sqlutil.TxStmt(txn, s.selectQueueNextTransactionIDStmt)
|
||||
err := stmt.QueryRowContext(ctx, serverName).Scan(&transactionID)
|
||||
if err == sql.ErrNoRows {
|
||||
return "", nil
|
||||
}
|
||||
return transactionID, err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) selectQueueReferenceJSONCount(
|
||||
ctx context.Context, txn *sql.Tx, jsonNID int64,
|
||||
) (int64, error) {
|
||||
var count int64
|
||||
stmt := sqlutil.TxStmt(txn, s.selectQueueReferenceJSONCountStmt)
|
||||
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
|
||||
if err == sql.ErrNoRows {
|
||||
return -1, nil
|
||||
}
|
||||
return count, err
|
||||
}
|
||||
|
||||
func (s *queuePDUsStatements) selectQueuePDUs(
|
||||
ctx context.Context, txn *sql.Tx,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
limit int,
|
||||
) ([]int64, error) {
|
||||
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUsByTransactionStmt)
|
||||
rows, err := stmt.QueryContext(ctx, serverName, transactionID, limit)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
|
||||
var result []int64
|
||||
for rows.Next() {
|
||||
var nid int64
|
||||
if err = rows.Scan(&nid); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
result = append(result, nid)
|
||||
}
|
||||
|
||||
return result, rows.Err()
|
||||
}
|
@ -18,17 +18,22 @@ package sqlite3
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
|
||||
_ "github.com/mattn/go-sqlite3"
|
||||
|
||||
"github.com/matrix-org/dendrite/federationsender/types"
|
||||
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||||
"github.com/matrix-org/gomatrixserverlib"
|
||||
)
|
||||
|
||||
// Database stores information needed by the federation sender
|
||||
type Database struct {
|
||||
joinedHostsStatements
|
||||
roomStatements
|
||||
queuePDUsStatements
|
||||
queueJSONStatements
|
||||
sqlutil.PartitionOffsetStatements
|
||||
db *sql.DB
|
||||
}
|
||||
@ -61,6 +66,14 @@ func (d *Database) prepare() error {
|
||||
return err
|
||||
}
|
||||
|
||||
if err = d.queuePDUsStatements.prepare(d.db); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err = d.queueJSONStatements.prepare(d.db); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return d.PartitionOffsetStatements.Prepare(d.db, "federationsender")
|
||||
}
|
||||
|
||||
@ -126,3 +139,125 @@ func (d *Database) GetJoinedHosts(
|
||||
) ([]types.JoinedHost, error) {
|
||||
return d.selectJoinedHosts(ctx, roomID)
|
||||
}
|
||||
|
||||
// StoreJSON adds a JSON blob into the queue JSON table and returns
|
||||
// a NID. The NID will then be used when inserting the per-destination
|
||||
// metadata entries.
|
||||
func (d *Database) StoreJSON(
|
||||
ctx context.Context, js string,
|
||||
) (int64, error) {
|
||||
nid, err := d.insertQueueJSON(ctx, nil, js)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("d.insertQueueJSON: %w", err)
|
||||
}
|
||||
return nid, nil
|
||||
}
|
||||
|
||||
// AssociatePDUWithDestination creates an association that the
|
||||
// destination queues will use to determine which JSON blobs to send
|
||||
// to which servers.
|
||||
func (d *Database) AssociatePDUWithDestination(
|
||||
ctx context.Context,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
nids []int64,
|
||||
) error {
|
||||
return sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
|
||||
for _, nid := range nids {
|
||||
if err := d.insertQueuePDU(
|
||||
ctx, // context
|
||||
txn, // SQL transaction
|
||||
transactionID, // transaction ID
|
||||
serverName, // destination server name
|
||||
nid, // NID from the federationsender_queue_json table
|
||||
); err != nil {
|
||||
return fmt.Errorf("d.insertQueueRetryStmt.ExecContext: %w", err)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
||||
// GetNextTransactionPDUs retrieves events from the database for
|
||||
// the next pending transaction, up to the limit specified.
|
||||
func (d *Database) GetNextTransactionPDUs(
|
||||
ctx context.Context,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
limit int,
|
||||
) (
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
events []*gomatrixserverlib.HeaderedEvent,
|
||||
err error,
|
||||
) {
|
||||
err = sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
|
||||
transactionID, err = d.selectQueueNextTransactionID(ctx, txn, serverName)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueueNextTransactionID: %w", err)
|
||||
}
|
||||
|
||||
if transactionID == "" {
|
||||
return nil
|
||||
}
|
||||
|
||||
nids, err := d.selectQueuePDUs(ctx, txn, serverName, transactionID, limit)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueuePDUs: %w", err)
|
||||
}
|
||||
|
||||
blobs, err := d.selectQueueJSON(ctx, txn, nids)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectJSON: %w", err)
|
||||
}
|
||||
|
||||
for _, blob := range blobs {
|
||||
var event gomatrixserverlib.HeaderedEvent
|
||||
if err := json.Unmarshal(blob, &event); err != nil {
|
||||
return fmt.Errorf("json.Unmarshal: %w", err)
|
||||
}
|
||||
events = append(events, &event)
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// CleanTransactionPDUs cleans up all associated events for a
|
||||
// given transaction. This is done when the transaction was sent
|
||||
// successfully.
|
||||
func (d *Database) CleanTransactionPDUs(
|
||||
ctx context.Context,
|
||||
serverName gomatrixserverlib.ServerName,
|
||||
transactionID gomatrixserverlib.TransactionID,
|
||||
) error {
|
||||
return sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
|
||||
nids, err := d.selectQueuePDUs(ctx, txn, serverName, transactionID, 50)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueuePDUs: %w", err)
|
||||
}
|
||||
|
||||
if err = d.deleteQueueTransaction(ctx, txn, serverName, transactionID); err != nil {
|
||||
return fmt.Errorf("d.deleteQueueTransaction: %w", err)
|
||||
}
|
||||
|
||||
var count int64
|
||||
var deleteNIDs []int64
|
||||
for _, nid := range nids {
|
||||
count, err = d.selectQueueReferenceJSONCount(ctx, txn, nid)
|
||||
if err != nil {
|
||||
return fmt.Errorf("d.selectQueueReferenceJSONCount: %w", err)
|
||||
}
|
||||
if count == 0 {
|
||||
deleteNIDs = append(deleteNIDs, nid)
|
||||
}
|
||||
}
|
||||
|
||||
if len(deleteNIDs) > 0 {
|
||||
if err = d.deleteQueueJSON(ctx, txn, deleteNIDs); err != nil {
|
||||
return fmt.Errorf("d.deleteQueueJSON: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user