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database: batch msg inserts

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This commit takes insert query compilation and transaction creation out
of the critical loop for migrating message logs. I have tested with
the sqlite backend, and a speedup of approximately 40x has been achieved
for log migration.
This commit is contained in:
Calvin Lee 2023-07-09 17:28:00 -07:00 committed by Simon Ser
parent 8a2a9706f7
commit d137c69131
5 changed files with 120 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
contrib/migrate-logs/main.go
View File

@ -12,6 +12,8 @@ import (
"strings"
"time"
"gopkg.in/irc.v4"
"git.sr.ht/~emersion/soju/database"
"git.sr.ht/~emersion/soju/msgstore"
"git.sr.ht/~emersion/soju/msgstore/znclog"
@ -88,6 +90,7 @@ func migrateNetwork(ctx context.Context, db database.Database, user *database.Us
return fmt.Errorf("unable to open entry: %s", entryPath)
}
sc := bufio.NewScanner(entry)
var msgs []*irc.Message
for sc.Scan() {
msg, _, err := znclog.UnmarshalLine(sc.Text(), user, network, target, ref, true)
if err != nil {
@ -95,14 +98,15 @@ func migrateNetwork(ctx context.Context, db database.Database, user *database.Us
} else if msg == nil {
continue
}
_, err = db.StoreMessage(ctx, network.ID, target, msg)
if err != nil {
return fmt.Errorf("unable to store message: %s: %s: %v", entryPath, sc.Text(), err)
}
msgs = append(msgs, msg)
}
if sc.Err() != nil {
return fmt.Errorf("unable to parse entry: %s: %v", entryPath, sc.Err())
}
_, err = db.StoreMessages(ctx, network.ID, target, msgs)
if err != nil {
return fmt.Errorf("unable to store messages: %s: %s: %v", entryPath, sc.Text(), err)
}
entry.Close()
}
}

2
database/database.go
View File

@ -60,7 +60,7 @@ type Database interface {
DeleteWebPushSubscription(ctx context.Context, id int64) error
GetMessageLastID(ctx context.Context, networkID int64, name string) (int64, error)
StoreMessage(ctx context.Context, networkID int64, name string, msg *irc.Message) (int64, error)
StoreMessages(ctx context.Context, networkID int64, name string, msgs []*irc.Message) ([]int64, error)
ListMessageLastPerTarget(ctx context.Context, networkID int64, options *MessageOptions) ([]MessageTarget, error)
ListMessages(ctx context.Context, networkID int64, name string, options *MessageOptions) ([]*irc.Message, error)
}

67
database/postgres.go
View File

@ -928,16 +928,49 @@ func (db *PostgresDB) GetMessageLastID(ctx context.Context, networkID int64, nam
return msgID, nil
}
func (db *PostgresDB) StoreMessage(ctx context.Context, networkID int64, name string, msg *irc.Message) (int64, error) {
ctx, cancel := context.WithTimeout(ctx, postgresQueryTimeout)
func (db *PostgresDB) StoreMessages(ctx context.Context, networkID int64, name string, msgs []*irc.Message) ([]int64, error) {
if len(msgs) == 0 {
return nil, nil
}
ctx, cancel := context.WithTimeout(ctx, time.Duration(len(msgs))*sqliteQueryTimeout)
defer cancel()
tx, err := db.db.BeginTx(ctx, nil)
if err != nil {
return nil, err
}
defer tx.Rollback()
_, err = tx.ExecContext(ctx, `
INSERT INTO "MessageTarget" (network, target)
VALUES ($1, $2)
ON CONFLICT DO NOTHING`,
networkID,
name,
)
if err != nil {
return nil, err
}
insertStmt, err := tx.PrepareContext(ctx, `
INSERT INTO "Message" (target, raw, time, sender, text)
SELECT id, $1, $2, $3, $4
FROM "MessageTarget" as t
WHERE network = $5 AND target = $6
RETURNING id`)
if err != nil {
return nil, err
}
ids := make([]int64, len(msgs))
for i, msg := range msgs {
var t time.Time
if tag, ok := msg.Tags["time"]; ok {
var err error
t, err = time.Parse(xirc.ServerTimeLayout, tag)
if err != nil {
return 0, fmt.Errorf("failed to parse message time tag: %v", err)
return nil, fmt.Errorf("failed to parse message time tag: %w", err)
}
} else {
t = time.Now()
@ -952,35 +985,21 @@ func (db *PostgresDB) StoreMessage(ctx context.Context, networkID int64, name st
}
}
_, err := db.db.ExecContext(ctx, `
INSERT INTO "MessageTarget" (network, target)
VALUES ($1, $2)
ON CONFLICT DO NOTHING`,
networkID,
name,
)
if err != nil {
return 0, err
}
var id int64
err = db.db.QueryRowContext(ctx, `
INSERT INTO "Message" (target, raw, time, sender, text)
SELECT id, $1, $2, $3, $4
FROM "MessageTarget" as t
WHERE network = $5 AND target = $6
RETURNING id`,
err = insertStmt.QueryRowContext(ctx,
msg.String(),
t,
msg.Name,
text,
networkID,
name,
).Scan(&id)
).Scan(&ids[i])
if err != nil {
return 0, err
return nil, err
}
return id, nil
}
err = tx.Commit()
return ids, err
}
func (db *PostgresDB) ListMessageLastPerTarget(ctx context.Context, networkID int64, options *MessageOptions) ([]MessageTarget, error) {

66
database/sqlite.go
View File

@ -1192,16 +1192,48 @@ func (db *SqliteDB) GetMessageLastID(ctx context.Context, networkID int64, name
return msgID, nil
}
func (db *SqliteDB) StoreMessage(ctx context.Context, networkID int64, name string, msg *irc.Message) (int64, error) {
ctx, cancel := context.WithTimeout(ctx, sqliteQueryTimeout)
func (db *SqliteDB) StoreMessages(ctx context.Context, networkID int64, name string, msgs []*irc.Message) ([]int64, error) {
if len(msgs) == 0 {
return nil, nil
}
ctx, cancel := context.WithTimeout(ctx, time.Duration(len(msgs))*sqliteQueryTimeout)
defer cancel()
tx, err := db.db.BeginTx(ctx, nil)
if err != nil {
return nil, err
}
defer tx.Rollback()
res, err := tx.ExecContext(ctx, `
INSERT INTO MessageTarget(network, target)
VALUES (:network, :target)
ON CONFLICT DO NOTHING`,
sql.Named("network", networkID),
sql.Named("target", name),
)
if err != nil {
return nil, err
}
insertStmt, err := tx.PrepareContext(ctx, `
INSERT INTO Message(target, raw, time, sender, text)
SELECT id, :raw, :time, :sender, :text
FROM MessageTarget as t
WHERE network = :network AND target = :target`)
if err != nil {
return nil, err
}
ids := make([]int64, len(msgs))
for i, msg := range msgs {
var t time.Time
if tag, ok := msg.Tags["time"]; ok {
var err error
t, err = time.Parse(xirc.ServerTimeLayout, tag)
if err != nil {
return 0, fmt.Errorf("failed to parse message time tag: %v", err)
return nil, fmt.Errorf("failed to parse message time tag: %w", err)
}
} else {
t = time.Now()
@ -1216,22 +1248,7 @@ func (db *SqliteDB) StoreMessage(ctx context.Context, networkID int64, name stri
}
}
res, err := db.db.ExecContext(ctx, `
INSERT INTO MessageTarget(network, target)
VALUES (:network, :target)
ON CONFLICT DO NOTHING`,
sql.Named("network", networkID),
sql.Named("target", name),
)
if err != nil {
return 0, err
}
res, err = db.db.ExecContext(ctx, `
INSERT INTO Message(target, raw, time, sender, text)
SELECT id, :raw, :time, :sender, :text
FROM MessageTarget as t
WHERE network = :network AND target = :target`,
res, err = insertStmt.ExecContext(ctx,
sql.Named("network", networkID),
sql.Named("target", name),
sql.Named("raw", msg.String()),
@ -1240,13 +1257,16 @@ func (db *SqliteDB) StoreMessage(ctx context.Context, networkID int64, name stri
sql.Named("text", text),
)
if err != nil {
return 0, err
return nil, err
}
id, err := res.LastInsertId()
ids[i], err = res.LastInsertId()
if err != nil {
return 0, err
return nil, err
}
return id, nil
}
err = tx.Commit()
return ids, err
}
func (db *SqliteDB) ListMessageLastPerTarget(ctx context.Context, networkID int64, options *MessageOptions) ([]MessageTarget, error) {

4
msgstore/db.go
View File

@ -81,11 +81,11 @@ func (ms *dbMessageStore) LoadLatestID(ctx context.Context, id string, options *
}
func (ms *dbMessageStore) Append(network *database.Network, entity string, msg *irc.Message) (string, error) {
id, err := ms.db.StoreMessage(context.TODO(), network.ID, entity, msg)
ids, err := ms.db.StoreMessages(context.TODO(), network.ID, entity, []*irc.Message{msg})
if err != nil {
return "", err
}
return formatDBMsgID(network.ID, entity, id), nil
return formatDBMsgID(network.ID, entity, ids[0]), nil
}
func (ms *dbMessageStore) ListTargets(ctx context.Context, network *database.Network, start, end time.Time, limit int, events bool) ([]ChatHistoryTarget, error) {