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Deduplicate FS database, EDU persistence table (#1207)

Browse source 
* Deduplicate FS database, add some EDU persistence groundwork

* Extend TransactionWriter to use optional existing transaction, use that for FS SQLite database writes

* Fix build due to bad keyserver import

* Working EDU persistence

* gocyclo, unsurprisingly

* Remove unused

* Update copyright notices
This commit is contained in:
Neil Alexander 2020-07-20 16:55:20 +01:00 committed by GitHub
parent f3c482b078
commit 11a39fe3b5
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
22 changed files with 1334 additions and 698 deletions
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136
federationsender/queue/destinationqueue.go
View file

@ -22,6 +22,7 @@ import (
"time"
"github.com/matrix-org/dendrite/federationsender/storage"
"github.com/matrix-org/dendrite/federationsender/storage/shared"
"github.com/matrix-org/dendrite/federationsender/types"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/gomatrix"
@ -31,8 +32,11 @@ import (
"go.uber.org/atomic"
)
const maxPDUsPerTransaction = 50
const queueIdleTimeout = time.Second * 30
const (
maxPDUsPerTransaction = 50
maxEDUsPerTransaction = 50
queueIdleTimeout = time.Second * 30
)
// destinationQueue is a queue of events for a single destination.
// It is responsible for sending the events to the destination and
@ -49,20 +53,19 @@ type destinationQueue struct {
backingOff atomic.Bool // true if we're backing off
statistics *types.ServerStatistics // statistics about this remote server
incomingInvites chan *gomatrixserverlib.InviteV2Request // invites to send
incomingEDUs chan *gomatrixserverlib.EDU // EDUs to send
transactionIDMutex sync.Mutex // protects transactionID
transactionID gomatrixserverlib.TransactionID // last transaction ID
transactionCount atomic.Int32 // how many events in this transaction so far
pendingEDUs []*gomatrixserverlib.EDU // owned by backgroundSend
pendingInvites []*gomatrixserverlib.InviteV2Request // owned by backgroundSend
notifyPDUs chan bool // interrupts idle wait for PDUs
notifyEDUs chan bool // interrupts idle wait for EDUs
interruptBackoff chan bool // interrupts backoff
}
// Send event adds the event to the pending queue for the destination.
// If the queue is empty then it starts a background goroutine to
// start sending events to that destination.
func (oq *destinationQueue) sendEvent(nid int64) {
func (oq *destinationQueue) sendEvent(receipt *shared.Receipt) {
if oq.statistics.Blacklisted() {
// If the destination is blacklisted then drop the event.
log.Infof("%s is blacklisted; dropping event", oq.destination)
@ -86,9 +89,9 @@ func (oq *destinationQueue) sendEvent(nid int64) {
context.TODO(),
oq.transactionID, // the current transaction ID
oq.destination, // the destination server name
[]int64{nid}, // NID from federationsender_queue_json table
receipt, // NIDs from federationsender_queue_json table
); err != nil {
log.WithError(err).Errorf("failed to associate PDU NID %d with destination %q", nid, oq.destination)
log.WithError(err).Errorf("failed to associate PDU receipt %q with destination %q", receipt.String(), oq.destination)
return
}
// We've successfully added a PDU to the transaction so increase
@ -107,13 +110,34 @@ func (oq *destinationQueue) sendEvent(nid int64) {
// sendEDU adds the EDU event to the pending queue for the destination.
// If the queue is empty then it starts a background goroutine to
// start sending events to that destination.
func (oq *destinationQueue) sendEDU(ev *gomatrixserverlib.EDU) {
func (oq *destinationQueue) sendEDU(receipt *shared.Receipt) {
if oq.statistics.Blacklisted() {
// If the destination is blacklisted then drop the event.
log.Infof("%s is blacklisted; dropping ephemeral event", oq.destination)
return
}
// Create a database entry that associates the given PDU NID with
// this destination queue. We'll then be able to retrieve the PDU
// later.
if err := oq.db.AssociateEDUWithDestination(
context.TODO(),
oq.destination, // the destination server name
receipt, // NIDs from federationsender_queue_json table
); err != nil {
log.WithError(err).Errorf("failed to associate EDU receipt %q with destination %q", receipt.String(), oq.destination)
return
}
// We've successfully added an EDU to the transaction so increase
// the counter.
oq.transactionCount.Add(1)
// Wake up the queue if it's asleep.
oq.wakeQueueIfNeeded()
oq.incomingEDUs <- ev
// If we're blocking on waiting PDUs then tell the queue that we
// have work to do.
select {
case oq.notifyEDUs <- true:
default:
}
}
// sendInvite adds the invite event to the pending queue for the
@ -166,6 +190,28 @@ func (oq *destinationQueue) waitForPDUs() chan bool {
return oq.notifyPDUs
}
// waitForEDUs returns a channel for pending EDUs, which will be
// used in backgroundSend select. It returns a closed channel if
// there is something pending right now, or an open channel if
// we're waiting for something.
func (oq *destinationQueue) waitForEDUs() chan bool {
pendingEDUs, err := oq.db.GetPendingEDUCount(context.TODO(), oq.destination)
if err != nil {
log.WithError(err).Errorf("Failed to get pending EDU count on queue %q", oq.destination)
}
// If there are EDUs pending right now then we'll return a closed
// channel. This will mean that the backgroundSend will not block.
if pendingEDUs > 0 {
ch := make(chan bool, 1)
close(ch)
return ch
}
// If there are no EDUs pending right now then instead we'll return
// the notify channel, so that backgroundSend can pick up normal
// notifications from sendEvent.
return oq.notifyEDUs
}
// backgroundSend is the worker goroutine for sending events.
// nolint:gocyclo
func (oq *destinationQueue) backgroundSend() {
@ -177,7 +223,7 @@ func (oq *destinationQueue) backgroundSend() {
defer oq.running.Store(false)
for {
pendingPDUs := false
pendingPDUs, pendingEDUs := false, false
// If we have nothing to do then wait either for incoming events, or
// until we hit an idle timeout.
@ -186,18 +232,10 @@ func (oq *destinationQueue) backgroundSend() {
// We were woken up because there are new PDUs waiting in the
// database.
pendingPDUs = true
case edu := <-oq.incomingEDUs:
// EDUs are handled in-memory for now. We will try to keep
// the ordering intact.
// TODO: Certain EDU types need persistence, e.g. send-to-device
oq.pendingEDUs = append(oq.pendingEDUs, edu)
// If there are any more things waiting in the channel queue
// then read them. This is safe because we guarantee only
// having one goroutine per destination queue, so the channel
// isn't being consumed anywhere else.
for len(oq.incomingEDUs) > 0 {
oq.pendingEDUs = append(oq.pendingEDUs, <-oq.incomingEDUs)
}
case <-oq.waitForEDUs():
// We were woken up because there are new PDUs waiting in the
// database.
pendingEDUs = true
case invite := <-oq.incomingInvites:
// There's no strict ordering requirement for invites like
// there is for transactions, so we put the invite onto the
@ -238,16 +276,15 @@ func (oq *destinationQueue) backgroundSend() {
}
// If we have pending PDUs or EDUs then construct a transaction.
if pendingPDUs || len(oq.pendingEDUs) > 0 {
if pendingPDUs || pendingEDUs {
// Try sending the next transaction and see what happens.
transaction, terr := oq.nextTransaction(oq.pendingEDUs)
transaction, terr := oq.nextTransaction()
if terr != nil {
// We failed to send the transaction.
if giveUp := oq.statistics.Failure(); giveUp {
// It's been suggested that we should give up because the backoff
// has exceeded a maximum allowable value. Clean up the in-memory
// buffers at this point. The PDU clean-up is already on a defer.
oq.cleanPendingEDUs()
oq.cleanPendingInvites()
log.Infof("Blacklisting %q due to errors", oq.destination)
return
@ -265,8 +302,6 @@ func (oq *destinationQueue) backgroundSend() {
// If we successfully sent the transaction then clear out
// the pending events and EDUs, and wipe our transaction ID.
oq.statistics.Success()
// Clean up the in-memory buffers.
oq.cleanPendingEDUs()
}
}
@ -294,15 +329,6 @@ func (oq *destinationQueue) backgroundSend() {
}
}
// cleanPendingEDUs cleans out the pending EDU buffer, removing
// all references so that the underlying objects can be GC'd.
func (oq *destinationQueue) cleanPendingEDUs() {
for i := 0; i < len(oq.pendingEDUs); i++ {
oq.pendingEDUs[i] = nil
}
oq.pendingEDUs = []*gomatrixserverlib.EDU{}
}
// cleanPendingInvites cleans out the pending invite buffer,
// removing all references so that the underlying objects can
// be GC'd.
@ -316,9 +342,8 @@ func (oq *destinationQueue) cleanPendingInvites() {
// nextTransaction creates a new transaction from the pending event
// queue and sends it. Returns true if a transaction was sent or
// false otherwise.
func (oq *destinationQueue) nextTransaction(
pendingEDUs []*gomatrixserverlib.EDU,
) (bool, error) {
// nolint:gocyclo
func (oq *destinationQueue) nextTransaction() (bool, error) {
// Before we do anything, we need to roll over the transaction
// ID that is being used to coalesce events into the next TX.
// Otherwise it's possible that we'll pick up an incomplete
@ -343,7 +368,7 @@ func (oq *destinationQueue) nextTransaction(
// actually retrieve that many events.
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
txid, pdus, err := oq.db.GetNextTransactionPDUs(
txid, pdus, pduReceipt, err := oq.db.GetNextTransactionPDUs(
ctx, // context
oq.destination, // server name
maxPDUsPerTransaction, // max events to retrieve
@ -353,9 +378,19 @@ func (oq *destinationQueue) nextTransaction(
return false, fmt.Errorf("oq.db.GetNextTransactionPDUs: %w", err)
}
edus, eduReceipt, err := oq.db.GetNextTransactionEDUs(
ctx, // context
oq.destination, // server name
maxEDUsPerTransaction, // max events to retrieve
)
if err != nil {
log.WithError(err).Errorf("failed to get next transaction EDUs for server %q", oq.destination)
return false, fmt.Errorf("oq.db.GetNextTransactionEDUs: %w", err)
}
// If we didn't get anything from the database and there are no
// pending EDUs then there's nothing to do - stop here.
if len(pdus) == 0 && len(pendingEDUs) == 0 {
if len(pdus) == 0 && len(edus) == 0 {
return false, nil
}
@ -377,7 +412,7 @@ func (oq *destinationQueue) nextTransaction(
}
// Do the same for pending EDUS in the queue.
for _, edu := range pendingEDUs {
for _, edu := range edus {
t.EDUs = append(t.EDUs, *edu)
}
@ -393,12 +428,17 @@ func (oq *destinationQueue) nextTransaction(
switch err.(type) {
case nil:
// Clean up the transaction in the database.
if err = oq.db.CleanTransactionPDUs(
context.Background(),
t.Destination,
t.TransactionID,
); err != nil {
log.WithError(err).Errorf("failed to clean transaction %q for server %q", t.TransactionID, t.Destination)
if pduReceipt != nil {
//logrus.Infof("Cleaning PDUs %q", pduReceipt.String())
if err = oq.db.CleanPDUs(context.Background(), oq.destination, pduReceipt); err != nil {
log.WithError(err).Errorf("failed to clean PDUs %q for server %q", pduReceipt.String(), t.Destination)
}
}
if eduReceipt != nil {
//logrus.Infof("Cleaning EDUs %q", eduReceipt.String())
if err = oq.db.CleanEDUs(context.Background(), oq.destination, eduReceipt); err != nil {
log.WithError(err).Errorf("failed to clean EDUs %q for server %q", eduReceipt.String(), t.Destination)
}
}
return true, nil
case gomatrix.HTTPError:

33
federationsender/queue/queue.go
View file

@ -61,12 +61,23 @@ func NewOutgoingQueues(
queues: map[gomatrixserverlib.ServerName]*destinationQueue{},
}
// Look up which servers we have pending items for and then rehydrate those queues.
if serverNames, err := db.GetPendingServerNames(context.Background()); err == nil {
for _, serverName := range serverNames {
queues.getQueue(serverName).wakeQueueIfNeeded()
serverNames := map[gomatrixserverlib.ServerName]struct{}{}
if names, err := db.GetPendingPDUServerNames(context.Background()); err == nil {
for _, serverName := range names {
serverNames[serverName] = struct{}{}
}
} else {
log.WithError(err).Error("Failed to get server names for destination queue hydration")
log.WithError(err).Error("Failed to get PDU server names for destination queue hydration")
}
if names, err := db.GetPendingEDUServerNames(context.Background()); err == nil {
for _, serverName := range names {
serverNames[serverName] = struct{}{}
}
} else {
log.WithError(err).Error("Failed to get EDU server names for destination queue hydration")
}
for serverName := range serverNames {
queues.getQueue(serverName).wakeQueueIfNeeded()
}
return queues
}
@ -91,9 +102,9 @@ func (oqs *OutgoingQueues) getQueue(destination gomatrixserverlib.ServerName) *d
destination: destination,
client: oqs.client,
statistics: oqs.statistics.ForServer(destination),
incomingEDUs: make(chan *gomatrixserverlib.EDU, 128),
incomingInvites: make(chan *gomatrixserverlib.InviteV2Request, 128),
notifyPDUs: make(chan bool, 1),
notifyEDUs: make(chan bool, 1),
interruptBackoff: make(chan bool),
signing: oqs.signing,
}
@ -196,8 +207,18 @@ func (oqs *OutgoingQueues) SendEDU(
}).Info("Sending EDU event")
}
ephemeralJSON, err := json.Marshal(e)
if err != nil {
return fmt.Errorf("json.Marshal: %w", err)
}
nid, err := oqs.db.StoreJSON(context.TODO(), string(ephemeralJSON))
if err != nil {
return fmt.Errorf("sendevent: oqs.db.StoreJSON: %w", err)
}
for _, destination := range destinations {
oqs.getQueue(destination).sendEDU(e)
oqs.getQueue(destination).sendEDU(nid)
}
return nil

24
federationsender/storage/interface.go
View file

@ -17,6 +17,7 @@ package storage
import (
"context"
"github.com/matrix-org/dendrite/federationsender/storage/shared"
"github.com/matrix-org/dendrite/federationsender/types"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/gomatrixserverlib"
@ -24,13 +25,26 @@ import (
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)
GetAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, 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
StoreJSON(ctx context.Context, js string) (*shared.Receipt, error)
AssociatePDUWithDestination(ctx context.Context, transactionID gomatrixserverlib.TransactionID, serverName gomatrixserverlib.ServerName, receipt *shared.Receipt) error
AssociateEDUWithDestination(ctx context.Context, serverName gomatrixserverlib.ServerName, receipt *shared.Receipt) error
GetNextTransactionPDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, limit int) (gomatrixserverlib.TransactionID, []*gomatrixserverlib.HeaderedEvent, *shared.Receipt, error)
GetNextTransactionEDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, limit int) ([]*gomatrixserverlib.EDU, *shared.Receipt, error)
CleanPDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, receipt *shared.Receipt) error
CleanEDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, receipt *shared.Receipt) error
GetPendingPDUCount(ctx context.Context, serverName gomatrixserverlib.ServerName) (int64, error)
GetPendingServerNames(ctx context.Context) ([]gomatrixserverlib.ServerName, error)
GetPendingEDUCount(ctx context.Context, serverName gomatrixserverlib.ServerName) (int64, error)
GetPendingPDUServerNames(ctx context.Context) ([]gomatrixserverlib.ServerName, error)
GetPendingEDUServerNames(ctx context.Context) ([]gomatrixserverlib.ServerName, error)
}

26
federationsender/storage/postgres/joined_hosts_table.go
View file

@ -61,33 +61,37 @@ const selectAllJoinedHostsSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_joined_hosts"
type joinedHostsStatements struct {
db *sql.DB
insertJoinedHostsStmt *sql.Stmt
deleteJoinedHostsStmt *sql.Stmt
selectJoinedHostsStmt *sql.Stmt
selectAllJoinedHostsStmt *sql.Stmt
}
func (s *joinedHostsStatements) prepare(db *sql.DB) (err error) {
_, err = db.Exec(joinedHostsSchema)
func NewPostgresJoinedHostsTable(db *sql.DB) (s *joinedHostsStatements, err error) {
s = &joinedHostsStatements{
db: db,
}
_, err = s.db.Exec(joinedHostsSchema)
if err != nil {
return
}
if s.insertJoinedHostsStmt, err = db.Prepare(insertJoinedHostsSQL); err != nil {
if s.insertJoinedHostsStmt, err = s.db.Prepare(insertJoinedHostsSQL); err != nil {
return
}
if s.deleteJoinedHostsStmt, err = db.Prepare(deleteJoinedHostsSQL); err != nil {
if s.deleteJoinedHostsStmt, err = s.db.Prepare(deleteJoinedHostsSQL); err != nil {
return
}
if s.selectJoinedHostsStmt, err = db.Prepare(selectJoinedHostsSQL); err != nil {
if s.selectJoinedHostsStmt, err = s.db.Prepare(selectJoinedHostsSQL); err != nil {
return
}
if s.selectAllJoinedHostsStmt, err = db.Prepare(selectAllJoinedHostsSQL); err != nil {
if s.selectAllJoinedHostsStmt, err = s.db.Prepare(selectAllJoinedHostsSQL); err != nil {
return
}
return
}
func (s *joinedHostsStatements) insertJoinedHosts(
func (s *joinedHostsStatements) InsertJoinedHosts(
ctx context.Context,
txn *sql.Tx,
roomID, eventID string,
@ -98,7 +102,7 @@ func (s *joinedHostsStatements) insertJoinedHosts(
return err
}
func (s *joinedHostsStatements) deleteJoinedHosts(
func (s *joinedHostsStatements) DeleteJoinedHosts(
ctx context.Context, txn *sql.Tx, eventIDs []string,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteJoinedHostsStmt)
@ -106,20 +110,20 @@ func (s *joinedHostsStatements) deleteJoinedHosts(
return err
}
func (s *joinedHostsStatements) selectJoinedHostsWithTx(
func (s *joinedHostsStatements) SelectJoinedHostsWithTx(
ctx context.Context, txn *sql.Tx, roomID string,
) ([]types.JoinedHost, error) {
stmt := sqlutil.TxStmt(txn, s.selectJoinedHostsStmt)
return joinedHostsFromStmt(ctx, stmt, roomID)
}
func (s *joinedHostsStatements) selectJoinedHosts(
func (s *joinedHostsStatements) SelectJoinedHosts(
ctx context.Context, roomID string,
) ([]types.JoinedHost, error) {
return joinedHostsFromStmt(ctx, s.selectJoinedHostsStmt, roomID)
}
func (s *joinedHostsStatements) selectAllJoinedHosts(
func (s *joinedHostsStatements) SelectAllJoinedHosts(
ctx context.Context,
) ([]gomatrixserverlib.ServerName, error) {
rows, err := s.selectAllJoinedHostsStmt.QueryContext(ctx)

198
federationsender/storage/postgres/queue_edus_table.go Normal file
View file

@ -0,0 +1,198 @@
// 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"
"github.com/matrix-org/gomatrixserverlib"
)
const queueEDUsSchema = `
CREATE TABLE IF NOT EXISTS federationsender_queue_edus (
-- The type of the event (informational).
edu_type TEXT NOT NULL,
-- The domain part of the user ID the EDU event is for.
server_name TEXT NOT NULL,
-- The JSON NID from the federationsender_queue_edus_json table.
json_nid BIGINT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_edus_json_nid_idx
ON federationsender_queue_edus (json_nid, server_name);
`
const insertQueueEDUSQL = "" +
"INSERT INTO federationsender_queue_edus (edu_type, server_name, json_nid)" +
" VALUES ($1, $2, $3)"
const deleteQueueEDUSQL = "" +
"DELETE FROM federationsender_queue_edus WHERE server_name = $1 AND json_nid = ANY($2)"
const selectQueueEDUSQL = "" +
"SELECT json_nid FROM federationsender_queue_edus" +
" WHERE server_name = $1" +
" LIMIT $2"
const selectQueueEDUReferenceJSONCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_edus" +
" WHERE json_nid = $1"
const selectQueueEDUCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_edus" +
" WHERE server_name = $1"
const selectQueueServerNamesSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_queue_edus"
type queueEDUsStatements struct {
db *sql.DB
insertQueueEDUStmt *sql.Stmt
deleteQueueEDUStmt *sql.Stmt
selectQueueEDUStmt *sql.Stmt
selectQueueEDUReferenceJSONCountStmt *sql.Stmt
selectQueueEDUCountStmt *sql.Stmt
selectQueueEDUServerNamesStmt *sql.Stmt
}
func NewPostgresQueueEDUsTable(db *sql.DB) (s *queueEDUsStatements, err error) {
s = &queueEDUsStatements{
db: db,
}
_, err = s.db.Exec(queueEDUsSchema)
if err != nil {
return
}
if s.insertQueueEDUStmt, err = s.db.Prepare(insertQueueEDUSQL); err != nil {
return
}
if s.deleteQueueEDUStmt, err = s.db.Prepare(deleteQueueEDUSQL); err != nil {
return
}
if s.selectQueueEDUStmt, err = s.db.Prepare(selectQueueEDUSQL); err != nil {
return
}
if s.selectQueueEDUReferenceJSONCountStmt, err = s.db.Prepare(selectQueueEDUReferenceJSONCountSQL); err != nil {
return
}
if s.selectQueueEDUCountStmt, err = s.db.Prepare(selectQueueEDUCountSQL); err != nil {
return
}
if s.selectQueueEDUServerNamesStmt, err = s.db.Prepare(selectQueueServerNamesSQL); err != nil {
return
}
return
}
func (s *queueEDUsStatements) InsertQueueEDU(
ctx context.Context,
txn *sql.Tx,
eduType string,
serverName gomatrixserverlib.ServerName,
nid int64,
) error {
stmt := sqlutil.TxStmt(txn, s.insertQueueEDUStmt)
_, err := stmt.ExecContext(
ctx,
eduType, // the EDU type
serverName, // destination server name
nid, // JSON blob NID
)
return err
}
func (s *queueEDUsStatements) DeleteQueueEDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
jsonNIDs []int64,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteQueueEDUStmt)
_, err := stmt.ExecContext(ctx, serverName, pq.Int64Array(jsonNIDs))
return err
}
func (s *queueEDUsStatements) SelectQueueEDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
limit int,
) ([]int64, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUStmt)
rows, err := stmt.QueryContext(ctx, serverName, 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, nil
}
func (s *queueEDUsStatements) SelectQueueEDUReferenceJSONCount(
ctx context.Context, txn *sql.Tx, jsonNID int64,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUReferenceJSONCountStmt)
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
if err == sql.ErrNoRows {
return -1, nil
}
return count, err
}
func (s *queueEDUsStatements) SelectQueueEDUCount(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUCountStmt)
err := stmt.QueryRowContext(ctx, serverName).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 *queueEDUsStatements) SelectQueueEDUServerNames(
ctx context.Context, txn *sql.Tx,
) ([]gomatrixserverlib.ServerName, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUServerNamesStmt)
rows, err := stmt.QueryContext(ctx)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
var result []gomatrixserverlib.ServerName
for rows.Next() {
var serverName gomatrixserverlib.ServerName
if err = rows.Scan(&serverName); err != nil {
return nil, err
}
result = append(result, serverName)
}
return result, rows.Err()
}

20
federationsender/storage/postgres/queue_json_table.go
View file

@ -48,29 +48,33 @@ const selectJSONSQL = "" +
" WHERE json_nid = ANY($1)"
type queueJSONStatements struct {
db *sql.DB
insertJSONStmt *sql.Stmt
deleteJSONStmt *sql.Stmt
selectJSONStmt *sql.Stmt
}
func (s *queueJSONStatements) prepare(db *sql.DB) (err error) {
_, err = db.Exec(queueJSONSchema)
func NewPostgresQueueJSONTable(db *sql.DB) (s *queueJSONStatements, err error) {
s = &queueJSONStatements{
db: db,
}
_, err = s.db.Exec(queueJSONSchema)
if err != nil {
return
}
if s.insertJSONStmt, err = db.Prepare(insertJSONSQL); err != nil {
if s.insertJSONStmt, err = s.db.Prepare(insertJSONSQL); err != nil {
return
}
if s.deleteJSONStmt, err = db.Prepare(deleteJSONSQL); err != nil {
if s.deleteJSONStmt, err = s.db.Prepare(deleteJSONSQL); err != nil {
return
}
if s.selectJSONStmt, err = db.Prepare(selectJSONSQL); err != nil {
if s.selectJSONStmt, err = s.db.Prepare(selectJSONSQL); err != nil {
return
}
return
}
func (s *queueJSONStatements) insertQueueJSON(
func (s *queueJSONStatements) InsertQueueJSON(
ctx context.Context, txn *sql.Tx, json string,
) (int64, error) {
stmt := sqlutil.TxStmt(txn, s.insertJSONStmt)
@ -81,7 +85,7 @@ func (s *queueJSONStatements) insertQueueJSON(
return lastid, nil
}
func (s *queueJSONStatements) deleteQueueJSON(
func (s *queueJSONStatements) DeleteQueueJSON(
ctx context.Context, txn *sql.Tx, nids []int64,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteJSONStmt)
@ -89,7 +93,7 @@ func (s *queueJSONStatements) deleteQueueJSON(
return err
}
func (s *queueJSONStatements) selectQueueJSON(
func (s *queueJSONStatements) SelectQueueJSON(
ctx context.Context, txn *sql.Tx, jsonNIDs []int64,
) (map[int64][]byte, error) {
blobs := map[int64][]byte{}

67
federationsender/storage/postgres/queue_pdus_table.go
View file

@ -18,6 +18,7 @@ import (
"context"
"database/sql"
"github.com/lib/pq"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
@ -41,10 +42,10 @@ 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 deleteQueuePDUSQL = "" +
"DELETE FROM federationsender_queue_pdus WHERE server_name = $1 AND json_nid = ANY($2)"
const selectQueueNextTransactionIDSQL = "" +
const selectQueuePDUNextTransactionIDSQL = "" +
"SELECT transaction_id FROM federationsender_queue_pdus" +
" WHERE server_name = $1" +
" ORDER BY transaction_id ASC" +
@ -55,7 +56,7 @@ const selectQueuePDUsByTransactionSQL = "" +
" WHERE server_name = $1 AND transaction_id = $2" +
" LIMIT $3"
const selectQueueReferenceJSONCountSQL = "" +
const selectQueuePDUReferenceJSONCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
" WHERE json_nid = $1"
@ -63,49 +64,53 @@ const selectQueuePDUsCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
" WHERE server_name = $1"
const selectQueueServerNamesSQL = "" +
const selectQueuePDUServerNamesSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_queue_pdus"
type queuePDUsStatements struct {
db *sql.DB
insertQueuePDUStmt *sql.Stmt
deleteQueueTransactionPDUsStmt *sql.Stmt
selectQueueNextTransactionIDStmt *sql.Stmt
deleteQueuePDUsStmt *sql.Stmt
selectQueuePDUNextTransactionIDStmt *sql.Stmt
selectQueuePDUsByTransactionStmt *sql.Stmt
selectQueueReferenceJSONCountStmt *sql.Stmt
selectQueuePDUReferenceJSONCountStmt *sql.Stmt
selectQueuePDUsCountStmt *sql.Stmt
selectQueueServerNamesStmt *sql.Stmt
selectQueuePDUServerNamesStmt *sql.Stmt
}
func (s *queuePDUsStatements) prepare(db *sql.DB) (err error) {
_, err = db.Exec(queuePDUsSchema)
func NewPostgresQueuePDUsTable(db *sql.DB) (s *queuePDUsStatements, err error) {
s = &queuePDUsStatements{
db: db,
}
_, err = s.db.Exec(queuePDUsSchema)
if err != nil {
return
}
if s.insertQueuePDUStmt, err = db.Prepare(insertQueuePDUSQL); err != nil {
if s.insertQueuePDUStmt, err = s.db.Prepare(insertQueuePDUSQL); err != nil {
return
}
if s.deleteQueueTransactionPDUsStmt, err = db.Prepare(deleteQueueTransactionPDUsSQL); err != nil {
if s.deleteQueuePDUsStmt, err = s.db.Prepare(deleteQueuePDUSQL); err != nil {
return
}
if s.selectQueueNextTransactionIDStmt, err = db.Prepare(selectQueueNextTransactionIDSQL); err != nil {
if s.selectQueuePDUNextTransactionIDStmt, err = s.db.Prepare(selectQueuePDUNextTransactionIDSQL); err != nil {
return
}
if s.selectQueuePDUsByTransactionStmt, err = db.Prepare(selectQueuePDUsByTransactionSQL); err != nil {
if s.selectQueuePDUsByTransactionStmt, err = s.db.Prepare(selectQueuePDUsByTransactionSQL); err != nil {
return
}
if s.selectQueueReferenceJSONCountStmt, err = db.Prepare(selectQueueReferenceJSONCountSQL); err != nil {
if s.selectQueuePDUReferenceJSONCountStmt, err = s.db.Prepare(selectQueuePDUReferenceJSONCountSQL); err != nil {
return
}
if s.selectQueuePDUsCountStmt, err = db.Prepare(selectQueuePDUsCountSQL); err != nil {
if s.selectQueuePDUsCountStmt, err = s.db.Prepare(selectQueuePDUsCountSQL); err != nil {
return
}
if s.selectQueueServerNamesStmt, err = db.Prepare(selectQueueServerNamesSQL); err != nil {
if s.selectQueuePDUServerNamesStmt, err = s.db.Prepare(selectQueuePDUServerNamesSQL); err != nil {
return
}
return
}
func (s *queuePDUsStatements) insertQueuePDU(
func (s *queuePDUsStatements) InsertQueuePDU(
ctx context.Context,
txn *sql.Tx,
transactionID gomatrixserverlib.TransactionID,
@ -122,21 +127,21 @@ func (s *queuePDUsStatements) insertQueuePDU(
return err
}
func (s *queuePDUsStatements) deleteQueueTransaction(
func (s *queuePDUsStatements) DeleteQueuePDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
transactionID gomatrixserverlib.TransactionID,
jsonNIDs []int64,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteQueueTransactionPDUsStmt)
_, err := stmt.ExecContext(ctx, serverName, transactionID)
stmt := sqlutil.TxStmt(txn, s.deleteQueuePDUsStmt)
_, err := stmt.ExecContext(ctx, serverName, pq.Int64Array(jsonNIDs))
return err
}
func (s *queuePDUsStatements) selectQueueNextTransactionID(
func (s *queuePDUsStatements) SelectQueuePDUNextTransactionID(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (gomatrixserverlib.TransactionID, error) {
var transactionID gomatrixserverlib.TransactionID
stmt := sqlutil.TxStmt(txn, s.selectQueueNextTransactionIDStmt)
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUNextTransactionIDStmt)
err := stmt.QueryRowContext(ctx, serverName).Scan(&transactionID)
if err == sql.ErrNoRows {
return "", nil
@ -144,11 +149,11 @@ func (s *queuePDUsStatements) selectQueueNextTransactionID(
return transactionID, err
}
func (s *queuePDUsStatements) selectQueueReferenceJSONCount(
func (s *queuePDUsStatements) SelectQueuePDUReferenceJSONCount(
ctx context.Context, txn *sql.Tx, jsonNID int64,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueReferenceJSONCountStmt)
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUReferenceJSONCountStmt)
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
if err == sql.ErrNoRows {
// It's acceptable for there to be no rows referencing a given
@ -159,7 +164,7 @@ func (s *queuePDUsStatements) selectQueueReferenceJSONCount(
return count, err
}
func (s *queuePDUsStatements) selectQueuePDUCount(
func (s *queuePDUsStatements) SelectQueuePDUCount(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (int64, error) {
var count int64
@ -174,7 +179,7 @@ func (s *queuePDUsStatements) selectQueuePDUCount(
return count, err
}
func (s *queuePDUsStatements) selectQueuePDUs(
func (s *queuePDUsStatements) SelectQueuePDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
transactionID gomatrixserverlib.TransactionID,
@ -198,10 +203,10 @@ func (s *queuePDUsStatements) selectQueuePDUs(
return result, rows.Err()
}
func (s *queuePDUsStatements) selectQueueServerNames(
func (s *queuePDUsStatements) SelectQueuePDUServerNames(
ctx context.Context, txn *sql.Tx,
) ([]gomatrixserverlib.ServerName, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueServerNamesStmt)
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUServerNamesStmt)
rows, err := stmt.QueryContext(ctx)
if err != nil {
return nil, err

21
federationsender/storage/postgres/room_table.go
View file

@ -43,24 +43,27 @@ const updateRoomSQL = "" +
"UPDATE federationsender_rooms SET last_event_id = $2 WHERE room_id = $1"
type roomStatements struct {
db *sql.DB
insertRoomStmt *sql.Stmt
selectRoomForUpdateStmt *sql.Stmt
updateRoomStmt *sql.Stmt
}
func (s *roomStatements) prepare(db *sql.DB) (err error) {
_, err = db.Exec(roomSchema)
func NewPostgresRoomsTable(db *sql.DB) (s *roomStatements, err error) {
s = &roomStatements{
db: db,
}
_, err = s.db.Exec(roomSchema)
if err != nil {
return
}
if s.insertRoomStmt, err = db.Prepare(insertRoomSQL); err != nil {
if s.insertRoomStmt, err = s.db.Prepare(insertRoomSQL); err != nil {
return
}
if s.selectRoomForUpdateStmt, err = db.Prepare(selectRoomForUpdateSQL); err != nil {
if s.selectRoomForUpdateStmt, err = s.db.Prepare(selectRoomForUpdateSQL); err != nil {
return
}
if s.updateRoomStmt, err = db.Prepare(updateRoomSQL); err != nil {
if s.updateRoomStmt, err = s.db.Prepare(updateRoomSQL); err != nil {
return
}
return
@ -68,7 +71,7 @@ func (s *roomStatements) prepare(db *sql.DB) (err error) {
// insertRoom inserts the room if it didn't already exist.
// If the room didn't exist then last_event_id is set to the empty string.
func (s *roomStatements) insertRoom(
func (s *roomStatements) InsertRoom(
ctx context.Context, txn *sql.Tx, roomID string,
) error {
_, err := sqlutil.TxStmt(txn, s.insertRoomStmt).ExecContext(ctx, roomID)
@ -78,7 +81,7 @@ func (s *roomStatements) insertRoom(
// selectRoomForUpdate locks the row for the room and returns the last_event_id.
// The row must already exist in the table. Callers can ensure that the row
// exists by calling insertRoom first.
func (s *roomStatements) selectRoomForUpdate(
func (s *roomStatements) SelectRoomForUpdate(
ctx context.Context, txn *sql.Tx, roomID string,
) (string, error) {
var lastEventID string
@ -92,7 +95,7 @@ func (s *roomStatements) selectRoomForUpdate(
// updateRoom updates the last_event_id for the room. selectRoomForUpdate should
// have already been called earlier within the transaction.
func (s *roomStatements) updateRoom(
func (s *roomStatements) UpdateRoom(
ctx context.Context, txn *sql.Tx, roomID, lastEventID string,
) error {
stmt := sqlutil.TxStmt(txn, s.updateRoomStmt)

258
federationsender/storage/postgres/storage.go
View file

@ -16,266 +16,56 @@
package postgres
import (
"context"
"database/sql"
"encoding/json"
"fmt"
"github.com/matrix-org/dendrite/federationsender/types"
"github.com/matrix-org/dendrite/federationsender/storage/shared"
"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
shared.Database
sqlutil.PartitionOffsetStatements
db *sql.DB
}
// NewDatabase opens a new database
func NewDatabase(dataSourceName string, dbProperties sqlutil.DbProperties) (*Database, error) {
var result Database
var d Database
var err error
if result.db, err = sqlutil.Open("postgres", dataSourceName, dbProperties); err != nil {
if d.db, err = sqlutil.Open("postgres", dataSourceName, dbProperties); err != nil {
return nil, err
}
if err = result.prepare(); err != nil {
joinedHosts, err := NewPostgresJoinedHostsTable(d.db)
if err != nil {
return nil, err
}
return &result, nil
}
func (d *Database) prepare() error {
var err error
if err = d.joinedHostsStatements.prepare(d.db); err != nil {
return err
}
if err = d.roomStatements.prepare(d.db); err != nil {
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")
}
// UpdateRoom updates the joined hosts for a room and returns what the joined
// hosts were before the update, or nil if this was a duplicate message.
// This is called when we receive a message from kafka, so we pass in
// oldEventID and newEventID to check that we haven't missed any messages or
// this isn't a duplicate message.
func (d *Database) UpdateRoom(
ctx context.Context,
roomID, oldEventID, newEventID string,
addHosts []types.JoinedHost,
removeHosts []string,
) (joinedHosts []types.JoinedHost, err error) {
err = sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
err = d.insertRoom(ctx, txn, roomID)
queuePDUs, err := NewPostgresQueuePDUsTable(d.db)
if err != nil {
return err
return nil, err
}
lastSentEventID, err := d.selectRoomForUpdate(ctx, txn, roomID)
queueEDUs, err := NewPostgresQueueEDUsTable(d.db)
if err != nil {
return err
return nil, err
}
if lastSentEventID == newEventID {
// We've handled this message before, so let's just ignore it.
// We can only get a duplicate for the last message we processed,
// so its enough just to compare the newEventID with lastSentEventID
return nil
}
if lastSentEventID != "" && lastSentEventID != oldEventID {
return types.EventIDMismatchError{
DatabaseID: lastSentEventID, RoomServerID: oldEventID,
}
}
joinedHosts, err = d.selectJoinedHostsWithTx(ctx, txn, roomID)
queueJSON, err := NewPostgresQueueJSONTable(d.db)
if err != nil {
return err
return nil, err
}
for _, add := range addHosts {
err = d.insertJoinedHosts(ctx, txn, roomID, add.MemberEventID, add.ServerName)
rooms, err := NewPostgresRoomsTable(d.db)
if err != nil {
return err
return nil, err
}
d.Database = shared.Database{
DB: d.db,
FederationSenderJoinedHosts: joinedHosts,
FederationSenderQueuePDUs: queuePDUs,
FederationSenderQueueEDUs: queueEDUs,
FederationSenderQueueJSON: queueJSON,
FederationSenderRooms: rooms,
}
if err = d.deleteJoinedHosts(ctx, txn, removeHosts); err != nil {
return err
if err = d.PartitionOffsetStatements.Prepare(d.db, "federationsender"); err != nil {
return nil, err
}
return d.updateRoom(ctx, txn, roomID, newEventID)
})
return
}
// GetJoinedHosts returns the currently joined hosts for room,
// as known to federationserver.
// Returns an error if something goes wrong.
func (d *Database) GetJoinedHosts(
ctx context.Context, roomID string,
) ([]types.JoinedHost, error) {
return d.selectJoinedHosts(ctx, roomID)
}
// GetAllJoinedHosts returns the currently joined hosts for
// all rooms known to the federation sender.
// Returns an error if something goes wrong.
func (d *Database) GetAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, error) {
return d.selectAllJoinedHosts(ctx)
}
// 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
})
}
// GetPendingPDUCount returns the number of PDUs waiting to be
// sent for a given servername.
func (d *Database) GetPendingPDUCount(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
) (int64, error) {
return d.selectQueuePDUCount(ctx, nil, serverName)
}
// GetPendingServerNames returns the server names that have PDUs
// waiting to be sent.
func (d *Database) GetPendingServerNames(
ctx context.Context,
) ([]gomatrixserverlib.ServerName, error) {
return d.selectQueueServerNames(ctx, nil)
return &d, nil
}

138
federationsender/storage/shared/storage.go Normal file
View file

@ -0,0 +1,138 @@
// 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 shared
import (
"context"
"database/sql"
"encoding/json"
"fmt"
"github.com/matrix-org/dendrite/federationsender/storage/tables"
"github.com/matrix-org/dendrite/federationsender/types"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
)
type Database struct {
DB *sql.DB
FederationSenderQueuePDUs tables.FederationSenderQueuePDUs
FederationSenderQueueEDUs tables.FederationSenderQueueEDUs
FederationSenderQueueJSON tables.FederationSenderQueueJSON
FederationSenderJoinedHosts tables.FederationSenderJoinedHosts
FederationSenderRooms tables.FederationSenderRooms
}
// An Receipt contains the NIDs of a call to GetNextTransactionPDUs/EDUs.
// We don't actually export the NIDs but we need the caller to be able
// to pass them back so that we can clean up if the transaction sends
// successfully.
type Receipt struct {
nids []int64
}
func (e *Receipt) Empty() bool {
return len(e.nids) == 0
}
func (e *Receipt) String() string {
j, _ := json.Marshal(e.nids)
return string(j)
}
// UpdateRoom updates the joined hosts for a room and returns what the joined
// hosts were before the update, or nil if this was a duplicate message.
// This is called when we receive a message from kafka, so we pass in
// oldEventID and newEventID to check that we haven't missed any messages or
// this isn't a duplicate message.
func (d *Database) UpdateRoom(
ctx context.Context,
roomID, oldEventID, newEventID string,
addHosts []types.JoinedHost,
removeHosts []string,
) (joinedHosts []types.JoinedHost, err error) {
err = sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
err = d.FederationSenderRooms.InsertRoom(ctx, txn, roomID)
if err != nil {
return err
}
lastSentEventID, err := d.FederationSenderRooms.SelectRoomForUpdate(ctx, txn, roomID)
if err != nil {
return err
}
if lastSentEventID == newEventID {
// We've handled this message before, so let's just ignore it.
// We can only get a duplicate for the last message we processed,
// so its enough just to compare the newEventID with lastSentEventID
return nil
}
if lastSentEventID != "" && lastSentEventID != oldEventID {
return types.EventIDMismatchError{
DatabaseID: lastSentEventID, RoomServerID: oldEventID,
}
}
joinedHosts, err = d.FederationSenderJoinedHosts.SelectJoinedHostsWithTx(ctx, txn, roomID)
if err != nil {
return err
}
for _, add := range addHosts {
err = d.FederationSenderJoinedHosts.InsertJoinedHosts(ctx, txn, roomID, add.MemberEventID, add.ServerName)
if err != nil {
return err
}
}
if err = d.FederationSenderJoinedHosts.DeleteJoinedHosts(ctx, txn, removeHosts); err != nil {
return err
}
return d.FederationSenderRooms.UpdateRoom(ctx, txn, roomID, newEventID)
})
return
}
// GetJoinedHosts returns the currently joined hosts for room,
// as known to federationserver.
// Returns an error if something goes wrong.
func (d *Database) GetJoinedHosts(
ctx context.Context, roomID string,
) ([]types.JoinedHost, error) {
return d.FederationSenderJoinedHosts.SelectJoinedHosts(ctx, roomID)
}
// GetAllJoinedHosts returns the currently joined hosts for
// all rooms known to the federation sender.
// Returns an error if something goes wrong.
func (d *Database) GetAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, error) {
return d.FederationSenderJoinedHosts.SelectAllJoinedHosts(ctx)
}
// 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,
) (*Receipt, error) {
nid, err := d.FederationSenderQueueJSON.InsertQueueJSON(ctx, nil, js)
if err != nil {
return nil, fmt.Errorf("d.insertQueueJSON: %w", err)
}
return &Receipt{
nids: []int64{nid},
}, nil
}

143
federationsender/storage/shared/storage_edus.go Normal file
View file

@ -0,0 +1,143 @@
// 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 shared
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
)
// AssociateEDUWithDestination creates an association that the
// destination queues will use to determine which JSON blobs to send
// to which servers.
func (d *Database) AssociateEDUWithDestination(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
receipt *Receipt,
) error {
return sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
for _, nid := range receipt.nids {
if err := d.FederationSenderQueueEDUs.InsertQueueEDU(
ctx, // context
txn, // SQL transaction
"", // TODO: EDU type for coalescing
serverName, // destination server name
nid, // NID from the federationsender_queue_json table
); err != nil {
return fmt.Errorf("InsertQueueEDU: %w", err)
}
}
return nil
})
}
// GetNextTransactionEDUs retrieves events from the database for
// the next pending transaction, up to the limit specified.
func (d *Database) GetNextTransactionEDUs(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
limit int,
) (
edus []*gomatrixserverlib.EDU,
receipt *Receipt,
err error,
) {
err = sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
nids, err := d.FederationSenderQueueEDUs.SelectQueueEDUs(ctx, txn, serverName, limit)
if err != nil {
return fmt.Errorf("SelectQueueEDUs: %w", err)
}
receipt = &Receipt{
nids: nids,
}
blobs, err := d.FederationSenderQueueJSON.SelectQueueJSON(ctx, txn, nids)
if err != nil {
return fmt.Errorf("SelectQueueJSON: %w", err)
}
for _, blob := range blobs {
var event gomatrixserverlib.EDU
if err := json.Unmarshal(blob, &event); err != nil {
return fmt.Errorf("json.Unmarshal: %w", err)
}
edus = append(edus, &event)
}
return nil
})
return
}
// CleanEDUs cleans up all specified EDUs. This is done when a
// transaction was sent successfully.
func (d *Database) CleanEDUs(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
receipt *Receipt,
) error {
if receipt == nil {
return errors.New("expected receipt")
}
return sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
if err := d.FederationSenderQueueEDUs.DeleteQueueEDUs(ctx, txn, serverName, receipt.nids); err != nil {
return err
}
var deleteNIDs []int64
for _, nid := range receipt.nids {
count, err := d.FederationSenderQueueEDUs.SelectQueueEDUReferenceJSONCount(ctx, txn, nid)
if err != nil {
return fmt.Errorf("SelectQueueEDUReferenceJSONCount: %w", err)
}
if count == 0 {
deleteNIDs = append(deleteNIDs, nid)
}
}
if len(deleteNIDs) > 0 {
if err := d.FederationSenderQueueJSON.DeleteQueueJSON(ctx, txn, deleteNIDs); err != nil {
return fmt.Errorf("DeleteQueueJSON: %w", err)
}
}
return nil
})
}
// GetPendingEDUCount returns the number of EDUs waiting to be
// sent for a given servername.
func (d *Database) GetPendingEDUCount(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
) (int64, error) {
return d.FederationSenderQueueEDUs.SelectQueueEDUCount(ctx, nil, serverName)
}
// GetPendingServerNames returns the server names that have EDUs
// waiting to be sent.
func (d *Database) GetPendingEDUServerNames(
ctx context.Context,
) ([]gomatrixserverlib.ServerName, error) {
return d.FederationSenderQueueEDUs.SelectQueueEDUServerNames(ctx, nil)
}

155
federationsender/storage/shared/storage_pdus.go Normal file
View file

@ -0,0 +1,155 @@
// 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 shared
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
)
// 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,
receipt *Receipt,
) error {
return sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
for _, nid := range receipt.nids {
if err := d.FederationSenderQueuePDUs.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("InsertQueuePDU: %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,
receipt *Receipt,
err error,
) {
err = sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
transactionID, err = d.FederationSenderQueuePDUs.SelectQueuePDUNextTransactionID(ctx, txn, serverName)
if err != nil {
return fmt.Errorf("SelectQueuePDUNextTransactionID: %w", err)
}
if transactionID == "" {
return nil
}
nids, err := d.FederationSenderQueuePDUs.SelectQueuePDUs(ctx, txn, serverName, transactionID, limit)
if err != nil {
return fmt.Errorf("SelectQueuePDUs: %w", err)
}
receipt = &Receipt{
nids: nids,
}
blobs, err := d.FederationSenderQueueJSON.SelectQueueJSON(ctx, txn, nids)
if err != nil {
return fmt.Errorf("SelectQueueJSON: %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) CleanPDUs(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
receipt *Receipt,
) error {
if receipt == nil {
return errors.New("expected receipt")
}
return sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
if err := d.FederationSenderQueuePDUs.DeleteQueuePDUs(ctx, txn, serverName, receipt.nids); err != nil {
return err
}
var deleteNIDs []int64
for _, nid := range receipt.nids {
count, err := d.FederationSenderQueuePDUs.SelectQueuePDUReferenceJSONCount(ctx, txn, nid)
if err != nil {
return fmt.Errorf("SelectQueuePDUReferenceJSONCount: %w", err)
}
if count == 0 {
deleteNIDs = append(deleteNIDs, nid)
}
}
if len(deleteNIDs) > 0 {
if err := d.FederationSenderQueueJSON.DeleteQueueJSON(ctx, txn, deleteNIDs); err != nil {
return fmt.Errorf("DeleteQueueJSON: %w", err)
}
}
return nil
})
}
// GetPendingPDUCount returns the number of PDUs waiting to be
// sent for a given servername.
func (d *Database) GetPendingPDUCount(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
) (int64, error) {
return d.FederationSenderQueuePDUs.SelectQueuePDUCount(ctx, nil, serverName)
}
// GetPendingServerNames returns the server names that have PDUs
// waiting to be sent.
func (d *Database) GetPendingPDUServerNames(
ctx context.Context,
) ([]gomatrixserverlib.ServerName, error) {
return d.FederationSenderQueuePDUs.SelectQueuePDUServerNames(ctx, nil)
}

22
federationsender/storage/sqlite3/joined_hosts_table.go
View file

@ -60,13 +60,19 @@ const selectAllJoinedHostsSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_joined_hosts"
type joinedHostsStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
insertJoinedHostsStmt *sql.Stmt
deleteJoinedHostsStmt *sql.Stmt
selectJoinedHostsStmt *sql.Stmt
selectAllJoinedHostsStmt *sql.Stmt
}
func (s *joinedHostsStatements) prepare(db *sql.DB) (err error) {
func NewSQLiteJoinedHostsTable(db *sql.DB) (s *joinedHostsStatements, err error) {
s = &joinedHostsStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err = db.Exec(joinedHostsSchema)
if err != nil {
return
@ -86,20 +92,23 @@ func (s *joinedHostsStatements) prepare(db *sql.DB) (err error) {
return
}
func (s *joinedHostsStatements) insertJoinedHosts(
func (s *joinedHostsStatements) InsertJoinedHosts(
ctx context.Context,
txn *sql.Tx,
roomID, eventID string,
serverName gomatrixserverlib.ServerName,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertJoinedHostsStmt)
_, err := stmt.ExecContext(ctx, roomID, eventID, serverName)
return err
})
}
func (s *joinedHostsStatements) deleteJoinedHosts(
func (s *joinedHostsStatements) DeleteJoinedHosts(
ctx context.Context, txn *sql.Tx, eventIDs []string,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
for _, eventID := range eventIDs {
stmt := sqlutil.TxStmt(txn, s.deleteJoinedHostsStmt)
if _, err := stmt.ExecContext(ctx, eventID); err != nil {
@ -107,22 +116,23 @@ func (s *joinedHostsStatements) deleteJoinedHosts(
}
}
return nil
})
}
func (s *joinedHostsStatements) selectJoinedHostsWithTx(
func (s *joinedHostsStatements) SelectJoinedHostsWithTx(
ctx context.Context, txn *sql.Tx, roomID string,
) ([]types.JoinedHost, error) {
stmt := sqlutil.TxStmt(txn, s.selectJoinedHostsStmt)
return joinedHostsFromStmt(ctx, stmt, roomID)
}
func (s *joinedHostsStatements) selectJoinedHosts(
func (s *joinedHostsStatements) SelectJoinedHosts(
ctx context.Context, roomID string,
) ([]types.JoinedHost, error) {
return joinedHostsFromStmt(ctx, s.selectJoinedHostsStmt, roomID)
}
func (s *joinedHostsStatements) selectAllJoinedHosts(
func (s *joinedHostsStatements) SelectAllJoinedHosts(
ctx context.Context,
) ([]gomatrixserverlib.ServerName, error) {
rows, err := s.selectAllJoinedHostsStmt.QueryContext(ctx)

214
federationsender/storage/sqlite3/queue_edus_table.go Normal file
View file

@ -0,0 +1,214 @@
// 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 sqlite3
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
)
const queueEDUsSchema = `
CREATE TABLE IF NOT EXISTS federationsender_queue_edus (
-- The type of the event (informational).
edu_type TEXT NOT NULL,
-- The domain part of the user ID the EDU event is for.
server_name TEXT NOT NULL,
-- The JSON NID from the federationsender_queue_edus_json table.
json_nid BIGINT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_edus_json_nid_idx
ON federationsender_queue_edus (json_nid, server_name);
`
const insertQueueEDUSQL = "" +
"INSERT INTO federationsender_queue_edus (edu_type, server_name, json_nid)" +
" VALUES ($1, $2, $3)"
const deleteQueueEDUsSQL = "" +
"DELETE FROM federationsender_queue_edus WHERE server_name = $1 AND json_nid IN ($2)"
const selectQueueEDUSQL = "" +
"SELECT json_nid FROM federationsender_queue_edus" +
" WHERE server_name = $1" +
" LIMIT $2"
const selectQueueEDUReferenceJSONCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_edus" +
" WHERE json_nid = $1"
const selectQueueEDUCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_edus" +
" WHERE server_name = $1"
const selectQueueServerNamesSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_queue_edus"
type queueEDUsStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
insertQueueEDUStmt *sql.Stmt
selectQueueEDUStmt *sql.Stmt
selectQueueEDUReferenceJSONCountStmt *sql.Stmt
selectQueueEDUCountStmt *sql.Stmt
selectQueueEDUServerNamesStmt *sql.Stmt
}
func NewSQLiteQueueEDUsTable(db *sql.DB) (s *queueEDUsStatements, err error) {
s = &queueEDUsStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err = db.Exec(queueEDUsSchema)
if err != nil {
return
}
if s.insertQueueEDUStmt, err = db.Prepare(insertQueueEDUSQL); err != nil {
return
}
if s.selectQueueEDUStmt, err = db.Prepare(selectQueueEDUSQL); err != nil {
return
}
if s.selectQueueEDUReferenceJSONCountStmt, err = db.Prepare(selectQueueEDUReferenceJSONCountSQL); err != nil {
return
}
if s.selectQueueEDUCountStmt, err = db.Prepare(selectQueueEDUCountSQL); err != nil {
return
}
if s.selectQueueEDUServerNamesStmt, err = db.Prepare(selectQueueServerNamesSQL); err != nil {
return
}
return
}
func (s *queueEDUsStatements) InsertQueueEDU(
ctx context.Context,
txn *sql.Tx,
eduType string,
serverName gomatrixserverlib.ServerName,
nid int64,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertQueueEDUStmt)
_, err := stmt.ExecContext(
ctx,
eduType, // the EDU type
serverName, // destination server name
nid, // JSON blob NID
)
return err
})
}
func (s *queueEDUsStatements) DeleteQueueEDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
jsonNIDs []int64,
) error {
deleteSQL := strings.Replace(deleteQueueEDUsSQL, "($2)", sqlutil.QueryVariadicOffset(len(jsonNIDs), 1), 1)
fmt.Println(deleteSQL)
deleteStmt, err := txn.Prepare(deleteSQL)
if err != nil {
return fmt.Errorf("s.deleteQueueJSON s.db.Prepare: %w", err)
}
params := make([]interface{}, len(jsonNIDs)+1)
params[0] = serverName
for k, v := range jsonNIDs {
params[k+1] = v
}
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, deleteStmt)
_, err := stmt.ExecContext(ctx, params...)
return err
})
}
func (s *queueEDUsStatements) SelectQueueEDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
limit int,
) ([]int64, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUStmt)
rows, err := stmt.QueryContext(ctx, serverName, 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, nil
}
func (s *queueEDUsStatements) SelectQueueEDUReferenceJSONCount(
ctx context.Context, txn *sql.Tx, jsonNID int64,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUReferenceJSONCountStmt)
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
if err == sql.ErrNoRows {
return -1, nil
}
return count, err
}
func (s *queueEDUsStatements) SelectQueueEDUCount(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUCountStmt)
err := stmt.QueryRowContext(ctx, serverName).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 *queueEDUsStatements) SelectQueueEDUServerNames(
ctx context.Context, txn *sql.Tx,
) ([]gomatrixserverlib.ServerName, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUServerNamesStmt)
rows, err := stmt.QueryContext(ctx)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
var result []gomatrixserverlib.ServerName
for rows.Next() {
var serverName gomatrixserverlib.ServerName
if err = rows.Scan(&serverName); err != nil {
return nil, err
}
result = append(result, serverName)
}
return result, rows.Err()
}

29
federationsender/storage/sqlite3/queue_json_table.go
View file

@ -49,12 +49,18 @@ const selectJSONSQL = "" +
" WHERE json_nid IN ($1)"
type queueJSONStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
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) {
func NewSQLiteQueueJSONTable(db *sql.DB) (s *queueJSONStatements, err error) {
s = &queueJSONStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err = db.Exec(queueJSONSchema)
if err != nil {
return
@ -65,22 +71,25 @@ func (s *queueJSONStatements) prepare(db *sql.DB) (err error) {
return
}
func (s *queueJSONStatements) insertQueueJSON(
func (s *queueJSONStatements) InsertQueueJSON(
ctx context.Context, txn *sql.Tx, json string,
) (int64, error) {
) (lastid int64, err error) {
err = s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertJSONStmt)
res, err := stmt.ExecContext(ctx, json)
if err != nil {
return 0, fmt.Errorf("stmt.QueryContext: %w", err)
return fmt.Errorf("stmt.QueryContext: %w", err)
}
lastid, err := res.LastInsertId()
lastid, err = res.LastInsertId()
if err != nil {
return 0, fmt.Errorf("res.LastInsertId: %w", err)
return fmt.Errorf("res.LastInsertId: %w", err)
}
return lastid, nil
return nil
})
return
}
func (s *queueJSONStatements) deleteQueueJSON(
func (s *queueJSONStatements) DeleteQueueJSON(
ctx context.Context, txn *sql.Tx, nids []int64,
) error {
deleteSQL := strings.Replace(deleteJSONSQL, "($1)", sqlutil.QueryVariadic(len(nids)), 1)
@ -94,12 +103,14 @@ func (s *queueJSONStatements) deleteQueueJSON(
iNIDs[k] = v
}
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, deleteStmt)
_, err = stmt.ExecContext(ctx, iNIDs...)
return err
})
}
func (s *queueJSONStatements) selectQueueJSON(
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)

67
federationsender/storage/sqlite3/queue_pdus_table.go
View file

@ -18,6 +18,8 @@ package sqlite3
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
@ -42,8 +44,8 @@ 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 deleteQueuePDUsSQL = "" +
"DELETE FROM federationsender_queue_pdus WHERE server_name = $1 AND json_nid IN ($2)"
const selectQueueNextTransactionIDSQL = "" +
"SELECT transaction_id FROM federationsender_queue_pdus" +
@ -56,7 +58,7 @@ const selectQueuePDUsByTransactionSQL = "" +
" WHERE server_name = $1 AND transaction_id = $2" +
" LIMIT $3"
const selectQueueReferenceJSONCountSQL = "" +
const selectQueuePDUsReferenceJSONCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
" WHERE json_nid = $1"
@ -64,20 +66,26 @@ const selectQueuePDUsCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
" WHERE server_name = $1"
const selectQueueServerNamesSQL = "" +
const selectQueuePDUsServerNamesSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_queue_pdus"
type queuePDUsStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
insertQueuePDUStmt *sql.Stmt
deleteQueueTransactionPDUsStmt *sql.Stmt
selectQueueNextTransactionIDStmt *sql.Stmt
selectQueuePDUsByTransactionStmt *sql.Stmt
selectQueueReferenceJSONCountStmt *sql.Stmt
selectQueuePDUsCountStmt *sql.Stmt
selectQueueServerNamesStmt *sql.Stmt
// deleteQueuePDUsStmt *sql.Stmt - prepared at runtime due to variadic
}
func (s *queuePDUsStatements) prepare(db *sql.DB) (err error) {
func NewSQLiteQueuePDUsTable(db *sql.DB) (s *queuePDUsStatements, err error) {
s = &queuePDUsStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err = db.Exec(queuePDUsSchema)
if err != nil {
return
@ -85,34 +93,35 @@ func (s *queuePDUsStatements) prepare(db *sql.DB) (err error) {
if s.insertQueuePDUStmt, err = db.Prepare(insertQueuePDUSQL); err != nil {
return
}
if s.deleteQueueTransactionPDUsStmt, err = db.Prepare(deleteQueueTransactionPDUsSQL); err != nil {
return
}
//if s.deleteQueuePDUsStmt, err = db.Prepare(deleteQueuePDUsSQL); 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 {
if s.selectQueueReferenceJSONCountStmt, err = db.Prepare(selectQueuePDUsReferenceJSONCountSQL); err != nil {
return
}
if s.selectQueuePDUsCountStmt, err = db.Prepare(selectQueuePDUsCountSQL); err != nil {
return
}
if s.selectQueueServerNamesStmt, err = db.Prepare(selectQueueServerNamesSQL); err != nil {
if s.selectQueueServerNamesStmt, err = db.Prepare(selectQueuePDUsServerNamesSQL); err != nil {
return
}
return
}
func (s *queuePDUsStatements) insertQueuePDU(
func (s *queuePDUsStatements) InsertQueuePDU(
ctx context.Context,
txn *sql.Tx,
transactionID gomatrixserverlib.TransactionID,
serverName gomatrixserverlib.ServerName,
nid int64,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertQueuePDUStmt)
_, err := stmt.ExecContext(
ctx,
@ -121,19 +130,35 @@ func (s *queuePDUsStatements) insertQueuePDU(
nid, // JSON blob NID
)
return err
})
}
func (s *queuePDUsStatements) deleteQueueTransaction(
func (s *queuePDUsStatements) DeleteQueuePDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
transactionID gomatrixserverlib.TransactionID,
jsonNIDs []int64,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteQueueTransactionPDUsStmt)
_, err := stmt.ExecContext(ctx, serverName, transactionID)
deleteSQL := strings.Replace(deleteQueuePDUsSQL, "($2)", sqlutil.QueryVariadicOffset(len(jsonNIDs), 1), 1)
fmt.Println(deleteSQL)
deleteStmt, err := txn.Prepare(deleteSQL)
if err != nil {
return fmt.Errorf("s.deleteQueueJSON s.db.Prepare: %w", err)
}
params := make([]interface{}, len(jsonNIDs)+1)
params[0] = serverName
for k, v := range jsonNIDs {
params[k+1] = v
}
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, deleteStmt)
_, err := stmt.ExecContext(ctx, params...)
return err
})
}
func (s *queuePDUsStatements) selectQueueNextTransactionID(
func (s *queuePDUsStatements) SelectQueuePDUNextTransactionID(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (gomatrixserverlib.TransactionID, error) {
var transactionID gomatrixserverlib.TransactionID
@ -145,7 +170,7 @@ func (s *queuePDUsStatements) selectQueueNextTransactionID(
return transactionID, err
}
func (s *queuePDUsStatements) selectQueueReferenceJSONCount(
func (s *queuePDUsStatements) SelectQueuePDUReferenceJSONCount(
ctx context.Context, txn *sql.Tx, jsonNID int64,
) (int64, error) {
var count int64
@ -157,7 +182,7 @@ func (s *queuePDUsStatements) selectQueueReferenceJSONCount(
return count, err
}
func (s *queuePDUsStatements) selectQueuePDUCount(
func (s *queuePDUsStatements) SelectQueuePDUCount(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (int64, error) {
var count int64
@ -172,7 +197,7 @@ func (s *queuePDUsStatements) selectQueuePDUCount(
return count, err
}
func (s *queuePDUsStatements) selectQueuePDUs(
func (s *queuePDUsStatements) SelectQueuePDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
transactionID gomatrixserverlib.TransactionID,
@ -196,7 +221,7 @@ func (s *queuePDUsStatements) selectQueuePDUs(
return result, rows.Err()
}
func (s *queuePDUsStatements) selectQueueServerNames(
func (s *queuePDUsStatements) SelectQueuePDUServerNames(
ctx context.Context, txn *sql.Tx,
) ([]gomatrixserverlib.ServerName, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueServerNamesStmt)

18
federationsender/storage/sqlite3/room_table.go
View file

@ -43,12 +43,18 @@ const updateRoomSQL = "" +
"UPDATE federationsender_rooms SET last_event_id = $2 WHERE room_id = $1"
type roomStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
insertRoomStmt *sql.Stmt
selectRoomForUpdateStmt *sql.Stmt
updateRoomStmt *sql.Stmt
}
func (s *roomStatements) prepare(db *sql.DB) (err error) {
func NewSQLiteRoomsTable(db *sql.DB) (s *roomStatements, err error) {
s = &roomStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err = db.Exec(roomSchema)
if err != nil {
return
@ -68,17 +74,19 @@ func (s *roomStatements) prepare(db *sql.DB) (err error) {
// insertRoom inserts the room if it didn't already exist.
// If the room didn't exist then last_event_id is set to the empty string.
func (s *roomStatements) insertRoom(
func (s *roomStatements) InsertRoom(
ctx context.Context, txn *sql.Tx, roomID string,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
_, err := sqlutil.TxStmt(txn, s.insertRoomStmt).ExecContext(ctx, roomID)
return err
})
}
// selectRoomForUpdate locks the row for the room and returns the last_event_id.
// The row must already exist in the table. Callers can ensure that the row
// exists by calling insertRoom first.
func (s *roomStatements) selectRoomForUpdate(
func (s *roomStatements) SelectRoomForUpdate(
ctx context.Context, txn *sql.Tx, roomID string,
) (string, error) {
var lastEventID string
@ -92,10 +100,12 @@ func (s *roomStatements) selectRoomForUpdate(
// updateRoom updates the last_event_id for the room. selectRoomForUpdate should
// have already been called earlier within the transaction.
func (s *roomStatements) updateRoom(
func (s *roomStatements) UpdateRoom(
ctx context.Context, txn *sql.Tx, roomID, lastEventID string,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.updateRoomStmt)
_, err := stmt.ExecContext(ctx, roomID, lastEventID)
return err
})
}

269
federationsender/storage/sqlite3/storage.go
View file

@ -16,283 +16,62 @@
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/federationsender/storage/shared"
"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
shared.Database
sqlutil.PartitionOffsetStatements
db *sql.DB
queuePDUsWriter *sqlutil.TransactionWriter
queueJSONWriter *sqlutil.TransactionWriter
}
// NewDatabase opens a new database
func NewDatabase(dataSourceName string) (*Database, error) {
var result Database
var d Database
var err error
cs, err := sqlutil.ParseFileURI(dataSourceName)
if err != nil {
return nil, err
}
if result.db, err = sqlutil.Open(sqlutil.SQLiteDriverName(), cs, nil); err != nil {
if d.db, err = sqlutil.Open(sqlutil.SQLiteDriverName(), cs, nil); err != nil {
return nil, err
}
if err = result.prepare(); err != nil {
joinedHosts, err := NewSQLiteJoinedHostsTable(d.db)
if err != nil {
return nil, err
}
return &result, nil
}
func (d *Database) prepare() error {
var err error
if err = d.joinedHostsStatements.prepare(d.db); err != nil {
return err
}
if err = d.roomStatements.prepare(d.db); err != nil {
return err
}
if err = d.queuePDUsStatements.prepare(d.db); err != nil {
return err
}
if err = d.queueJSONStatements.prepare(d.db); err != nil {
return err
}
d.queuePDUsWriter = sqlutil.NewTransactionWriter()
d.queueJSONWriter = sqlutil.NewTransactionWriter()
return d.PartitionOffsetStatements.Prepare(d.db, "federationsender")
}
// UpdateRoom updates the joined hosts for a room and returns what the joined
// hosts were before the update, or nil if this was a duplicate message.
// This is called when we receive a message from kafka, so we pass in
// oldEventID and newEventID to check that we haven't missed any messages or
// this isn't a duplicate message.
func (d *Database) UpdateRoom(
ctx context.Context,
roomID, oldEventID, newEventID string,
addHosts []types.JoinedHost,
removeHosts []string,
) (joinedHosts []types.JoinedHost, err error) {
err = sqlutil.WithTransaction(d.db, func(txn *sql.Tx) error {
err = d.insertRoom(ctx, txn, roomID)
rooms, err := NewSQLiteRoomsTable(d.db)
if err != nil {
return err
return nil, err
}
lastSentEventID, err := d.selectRoomForUpdate(ctx, txn, roomID)
queuePDUs, err := NewSQLiteQueuePDUsTable(d.db)
if err != nil {
return err
return nil, err
}
if lastSentEventID == newEventID {
// We've handled this message before, so let's just ignore it.
// We can only get a duplicate for the last message we processed,
// so its enough just to compare the newEventID with lastSentEventID
return nil
}
if lastSentEventID != "" && lastSentEventID != oldEventID {
return types.EventIDMismatchError{
DatabaseID: lastSentEventID, RoomServerID: oldEventID,
}
}
joinedHosts, err = d.selectJoinedHostsWithTx(ctx, txn, roomID)
queueEDUs, err := NewSQLiteQueueEDUsTable(d.db)
if err != nil {
return err
return nil, err
}
for _, add := range addHosts {
err = d.insertJoinedHosts(ctx, txn, roomID, add.MemberEventID, add.ServerName)
queueJSON, err := NewSQLiteQueueJSONTable(d.db)
if err != nil {
return err
return nil, err
}
d.Database = shared.Database{
DB: d.db,
FederationSenderJoinedHosts: joinedHosts,
FederationSenderQueuePDUs: queuePDUs,
FederationSenderQueueEDUs: queueEDUs,
FederationSenderQueueJSON: queueJSON,
FederationSenderRooms: rooms,
}
if err = d.deleteJoinedHosts(ctx, txn, removeHosts); err != nil {
return err
if err = d.PartitionOffsetStatements.Prepare(d.db, "federationsender"); err != nil {
return nil, err
}
return d.updateRoom(ctx, txn, roomID, newEventID)
})
return
}
// GetJoinedHosts returns the currently joined hosts for room,
// as known to federationserver.
// Returns an error if something goes wrong.
func (d *Database) GetJoinedHosts(
ctx context.Context, roomID string,
) ([]types.JoinedHost, error) {
return d.selectJoinedHosts(ctx, roomID)
}
// GetAllJoinedHosts returns the currently joined hosts for
// all rooms known to the federation sender.
// Returns an error if something goes wrong.
func (d *Database) GetAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, error) {
return d.selectAllJoinedHosts(ctx)
}
// 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,
) (nid int64, err error) {
err = d.queueJSONWriter.Do(d.db, func(txn *sql.Tx) error {
n, e := d.insertQueueJSON(ctx, nil, js)
if e != nil {
return fmt.Errorf("d.insertQueueJSON: %w", e)
}
nid = n
return nil
})
return
}
// 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 d.queuePDUsWriter.Do(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 {
var deleteNIDs []int64
nids, err := d.selectQueuePDUs(ctx, nil, serverName, transactionID, 50)
if err != nil {
return fmt.Errorf("d.selectQueuePDUs: %w", err)
}
if err = d.queuePDUsWriter.Do(d.db, func(txn *sql.Tx) error {
if err = d.deleteQueueTransaction(ctx, txn, serverName, transactionID); err != nil {
return fmt.Errorf("d.deleteQueueTransaction: %w", err)
}
return nil
}); err != nil {
return err
}
var count int64
for _, nid := range nids {
count, err = d.selectQueueReferenceJSONCount(ctx, nil, nid)
if err != nil {
return fmt.Errorf("d.selectQueueReferenceJSONCount: %w", err)
}
if count == 0 {
deleteNIDs = append(deleteNIDs, nid)
}
}
if len(deleteNIDs) > 0 {
err = d.queueJSONWriter.Do(d.db, func(txn *sql.Tx) error {
if err = d.deleteQueueJSON(ctx, txn, deleteNIDs); err != nil {
return fmt.Errorf("d.deleteQueueJSON: %w", err)
}
return nil
})
}
return err
}
// GetPendingPDUCount returns the number of PDUs waiting to be
// sent for a given servername.
func (d *Database) GetPendingPDUCount(
ctx context.Context,
serverName gomatrixserverlib.ServerName,
) (int64, error) {
return d.selectQueuePDUCount(ctx, nil, serverName)
}
// GetPendingServerNames returns the server names that have PDUs
// waiting to be sent.
func (d *Database) GetPendingServerNames(
ctx context.Context,
) ([]gomatrixserverlib.ServerName, error) {
return d.selectQueueServerNames(ctx, nil)
return &d, nil
}

62
federationsender/storage/tables/interface.go Normal file
View file

@ -0,0 +1,62 @@
// 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 tables
import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/federationsender/types"
"github.com/matrix-org/gomatrixserverlib"
)
type FederationSenderQueuePDUs interface {
InsertQueuePDU(ctx context.Context, txn *sql.Tx, transactionID gomatrixserverlib.TransactionID, serverName gomatrixserverlib.ServerName, nid int64) error
DeleteQueuePDUs(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName, jsonNIDs []int64) error
SelectQueuePDUNextTransactionID(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName) (gomatrixserverlib.TransactionID, error)
SelectQueuePDUReferenceJSONCount(ctx context.Context, txn *sql.Tx, jsonNID int64) (int64, error)
SelectQueuePDUCount(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName) (int64, error)
SelectQueuePDUs(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName, transactionID gomatrixserverlib.TransactionID, limit int) ([]int64, error)
SelectQueuePDUServerNames(ctx context.Context, txn *sql.Tx) ([]gomatrixserverlib.ServerName, error)
}
type FederationSenderQueueEDUs interface {
InsertQueueEDU(ctx context.Context, txn *sql.Tx, eduType string, serverName gomatrixserverlib.ServerName, nid int64) error
DeleteQueueEDUs(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName, jsonNIDs []int64) error
SelectQueueEDUs(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName, limit int) ([]int64, error)
SelectQueueEDUReferenceJSONCount(ctx context.Context, txn *sql.Tx, jsonNID int64) (int64, error)
SelectQueueEDUCount(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName) (int64, error)
SelectQueueEDUServerNames(ctx context.Context, txn *sql.Tx) ([]gomatrixserverlib.ServerName, error)
}
type FederationSenderQueueJSON interface {
InsertQueueJSON(ctx context.Context, txn *sql.Tx, json string) (int64, error)
DeleteQueueJSON(ctx context.Context, txn *sql.Tx, nids []int64) error
SelectQueueJSON(ctx context.Context, txn *sql.Tx, jsonNIDs []int64) (map[int64][]byte, error)
}
type FederationSenderJoinedHosts interface {
InsertJoinedHosts(ctx context.Context, txn *sql.Tx, roomID, eventID string, serverName gomatrixserverlib.ServerName) error
DeleteJoinedHosts(ctx context.Context, txn *sql.Tx, eventIDs []string) error
SelectJoinedHostsWithTx(ctx context.Context, txn *sql.Tx, roomID string) ([]types.JoinedHost, error)
SelectJoinedHosts(ctx context.Context, roomID string) ([]types.JoinedHost, error)
SelectAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, error)
}
type FederationSenderRooms interface {
InsertRoom(ctx context.Context, txn *sql.Tx, roomID string) error
SelectRoomForUpdate(ctx context.Context, txn *sql.Tx, roomID string) (string, error)
UpdateRoom(ctx context.Context, txn *sql.Tx, roomID, lastEventID string) error
}

14
internal/sqlutil/sql.go
View file

@ -131,14 +131,17 @@ func NewTransactionWriter() *TransactionWriter {
// transactionWriterTask represents a specific task.
type transactionWriterTask struct {
db *sql.DB
txn *sql.Tx
f func(txn *sql.Tx) error
wait chan error
}
// Do queues a task to be run by a TransactionWriter. The function
// provided will be ran within a transaction as supplied by the
// database parameter. This will block until the task is finished.
func (w *TransactionWriter) Do(db *sql.DB, f func(txn *sql.Tx) error) error {
// txn parameter if one is supplied, and if not, will take out a
// new transaction from the database supplied in the database
// parameter. Either way, this will block until the task is done.
func (w *TransactionWriter) Do(db *sql.DB, txn *sql.Tx, f func(txn *sql.Tx) error) error {
if w.todo == nil {
return errors.New("not initialised")
}
@ -147,6 +150,7 @@ func (w *TransactionWriter) Do(db *sql.DB, f func(txn *sql.Tx) error) error {
}
task := transactionWriterTask{
db: db,
txn: txn,
f: f,
wait: make(chan error, 1),
}
@ -164,9 +168,15 @@ func (w *TransactionWriter) run() {
}
defer w.running.Store(false)
for task := range w.todo {
if task.txn != nil {
task.wait <- task.f(task.txn)
} else if task.db != nil {
task.wait <- WithTransaction(task.db, func(txn *sql.Tx) error {
return task.f(txn)
})
} else {
panic("expected database or transaction but got neither")
}
close(task.wait)
}
}

2
keyserver/storage/storage_wasm.go
View file

@ -19,7 +19,7 @@ import (
"net/url"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/userapi/storage/accounts/sqlite3"
"github.com/matrix-org/dendrite/keyserver/storage/sqlite3"
)
func NewDatabase(

4
syncapi/storage/shared/syncserver.go
View file

@ -1114,7 +1114,7 @@ func (d *Database) StoreNewSendForDeviceMessage(
}
// Delegate the database write task to the SendToDeviceWriter. It'll guarantee
// that we don't lock the table for writes in more than one place.
err = d.SendToDeviceWriter.Do(d.DB, func(txn *sql.Tx) error {
err = d.SendToDeviceWriter.Do(d.DB, nil, func(txn *sql.Tx) error {
return d.AddSendToDeviceEvent(
ctx, txn, userID, deviceID, string(j),
)
@ -1179,7 +1179,7 @@ func (d *Database) CleanSendToDeviceUpdates(
// If we need to write to the database then we'll ask the SendToDeviceWriter to
// do that for us. It'll guarantee that we don't lock the table for writes in
// more than one place.
err = d.SendToDeviceWriter.Do(d.DB, func(txn *sql.Tx) error {
err = d.SendToDeviceWriter.Do(d.DB, nil, func(txn *sql.Tx) error {
// Delete any send-to-device messages marked for deletion.
if e := d.SendToDevice.DeleteSendToDeviceMessages(ctx, txn, toDelete); e != nil {
return fmt.Errorf("d.SendToDevice.DeleteSendToDeviceMessages: %w", e)