mirror of
https://github.com/matrix-org/dendrite.git
synced 2024-11-22 22:31:56 -06:00
4ad5f9c982
* Allow monolith components to share a single database pool * Don't yell about missing connection strings * Rename field * Setup tweaks * Fix panic * Improve configuration checks * Update config * Fix lint errors * Update comments
110 lines
3 KiB
Go
110 lines
3 KiB
Go
// 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 sqlutil
|
|
|
|
import (
|
|
"context"
|
|
"database/sql/driver"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/ngrok/sqlmw"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
var tracingEnabled = os.Getenv("DENDRITE_TRACE_SQL") == "1"
|
|
var goidToWriter sync.Map
|
|
|
|
type traceInterceptor struct {
|
|
sqlmw.NullInterceptor
|
|
}
|
|
|
|
func (in *traceInterceptor) StmtQueryContext(ctx context.Context, stmt driver.StmtQueryContext, query string, args []driver.NamedValue) (driver.Rows, error) {
|
|
startedAt := time.Now()
|
|
rows, err := stmt.QueryContext(ctx, args)
|
|
|
|
trackGoID(query)
|
|
|
|
logrus.WithField("duration", time.Since(startedAt)).WithField(logrus.ErrorKey, err).Debug("executed sql query ", query, " args: ", args)
|
|
|
|
return rows, err
|
|
}
|
|
|
|
func (in *traceInterceptor) StmtExecContext(ctx context.Context, stmt driver.StmtExecContext, query string, args []driver.NamedValue) (driver.Result, error) {
|
|
startedAt := time.Now()
|
|
result, err := stmt.ExecContext(ctx, args)
|
|
|
|
trackGoID(query)
|
|
|
|
logrus.WithField("duration", time.Since(startedAt)).WithField(logrus.ErrorKey, err).Debug("executed sql query ", query, " args: ", args)
|
|
|
|
return result, err
|
|
}
|
|
|
|
func (in *traceInterceptor) RowsNext(c context.Context, rows driver.Rows, dest []driver.Value) error {
|
|
err := rows.Next(dest)
|
|
if err == io.EOF {
|
|
// For all cases, we call Next() n+1 times, the first to populate the initial dest, then eventually
|
|
// it will io.EOF. If we log on each Next() call we log the last element twice, so don't.
|
|
return err
|
|
}
|
|
cols := rows.Columns()
|
|
logrus.Debug(strings.Join(cols, " | "))
|
|
|
|
b := strings.Builder{}
|
|
for i, val := range dest {
|
|
b.WriteString(fmt.Sprintf("%q", val))
|
|
if i+1 <= len(dest)-1 {
|
|
b.WriteString(" | ")
|
|
}
|
|
}
|
|
logrus.Debug(b.String())
|
|
return err
|
|
}
|
|
|
|
func trackGoID(query string) {
|
|
thisGoID := goid()
|
|
if _, ok := goidToWriter.Load(thisGoID); ok {
|
|
return // we're on a writer goroutine
|
|
}
|
|
|
|
q := strings.TrimSpace(query)
|
|
if strings.HasPrefix(q, "SELECT") {
|
|
return // SELECTs can go on other goroutines
|
|
}
|
|
logrus.Warnf("unsafe goid %d: SQL executed not on an ExclusiveWriter: %s", thisGoID, q)
|
|
}
|
|
|
|
func init() {
|
|
registerDrivers()
|
|
}
|
|
|
|
func goid() int {
|
|
var buf [64]byte
|
|
n := runtime.Stack(buf[:], false)
|
|
idField := strings.Fields(strings.TrimPrefix(string(buf[:n]), "goroutine "))[0]
|
|
id, err := strconv.Atoi(idField)
|
|
if err != nil {
|
|
panic(fmt.Sprintf("cannot get goroutine id: %v", err))
|
|
}
|
|
return id
|
|
}
|