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search_log_test.go
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search_log_test.go
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// Copyright 2019 PingCAP, Inc.
//
// 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 sysutil_test
import (
"compress/gzip"
"context"
"fmt"
"io"
"io/ioutil"
"log"
"net"
"os"
"path/filepath"
"strings"
"testing"
"time"
pb "github.com/pingcap/kvproto/pkg/diagnosticspb"
"github.com/pingcap/sysutil"
"github.com/stretchr/testify/require"
"google.golang.org/grpc"
)
type searchLogSuite struct {
server *grpc.Server
address string
tmpDir string
}
func createSearchLogSuite(t testing.TB) (*searchLogSuite, func()) {
tmpDir, err := ioutil.TempDir("", "sysutil")
require.NoError(t, err)
server := grpc.NewServer()
pb.RegisterDiagnosticsServer(server, sysutil.NewDiagnosticsServer(filepath.Join(tmpDir, "rpc.tidb.log")))
// Find a available port
listener, err := net.Listen("tcp", ":0")
require.NoError(t, err, "cannot find available port")
s := new(searchLogSuite)
s.tmpDir = tmpDir
s.server = server
s.address = fmt.Sprintf(":%d", listener.Addr().(*net.TCPAddr).Port)
wait := make(chan struct{})
go func() {
wait <- struct{}{}
if err := server.Serve(listener); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}()
<-wait
return s, func() {
s.server.Stop()
require.NoError(t, os.RemoveAll(s.tmpDir), fmt.Sprintf("remote tmpDir %v failed", s.tmpDir))
}
}
func (s *searchLogSuite) writeTmpFile(t testing.TB, filename string, lines []string) {
err := ioutil.WriteFile(filepath.Join(s.tmpDir, filename), []byte(strings.Join(lines, "\n")), os.ModePerm)
require.NoError(t, err, fmt.Sprintf("write tmp file %s failed", filename))
}
func (s *searchLogSuite) writeTmpGzipFile(t testing.TB, filename string, lines []string) {
gzf, err := os.OpenFile(filepath.Join(s.tmpDir, filename), os.O_CREATE|os.O_TRUNC|os.O_WRONLY, os.ModePerm)
require.NoError(t, err, fmt.Sprintf("write tmp gzip file %s failed", filename))
gz := gzip.NewWriter(gzf)
defer gz.Close()
_, err = gz.Write([]byte(strings.Join(lines, "\n")))
require.NoError(t, err, fmt.Sprintf("write tmp gzip file %s failed", filename))
}
func TestResolveFiles(t *testing.T) {
s, clean := createSearchLogSuite(t)
defer clean()
s.writeTmpFile(t, "tidb.log", []string{
`20/08/26 06:19:13.011 -04:00 [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`hello TiDB`,
`[2019/08/26 06:19:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`20/08/26 06:19:13.011 -04:00 [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`hello TiDB`,
})
// single line file
s.writeTmpFile(t, "tidb-1.log", []string{
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
// two lines file
s.writeTmpFile(t, "tidb-2.log", []string{
`[2019/08/26 06:21:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
// empty file
s.writeTmpFile(t, "tidb-3.log", []string{``})
s.writeTmpFile(t, "tidb-4.log", []string{
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
type timeRange struct{ start, end string }
cases := []struct {
search timeRange
expect []timeRange
}{
// 0
// all files
{
search: timeRange{"2019/08/26 06:19:13.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:19:13.011 -04:00", "2019/08/26 06:19:17.011 -04:00"},
{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
{"2019/08/26 06:22:14.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
},
},
// 1
// emptys
{
search: timeRange{"2019/08/26 06:29:13.011 -04:00", "2019/08/26 06:32:17.011 -04:00"},
expect: []timeRange{},
},
// 2
// single line
{
search: timeRange{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
},
},
// 3
{
search: timeRange{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
},
},
// 4
{
search: timeRange{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
},
},
// 5
{
search: timeRange{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
{"2019/08/26 06:22:14.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
},
},
// 6
{
search: timeRange{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:22:15.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
{"2019/08/26 06:22:14.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
},
},
// 7
{
search: timeRange{"2019/08/26 06:19:15.011 -04:00", "2019/08/26 06:22:15.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:19:13.011 -04:00", "2019/08/26 06:19:17.011 -04:00"},
{"2019/08/26 06:20:14.011 -04:00", "2019/08/26 06:20:14.011 -04:00"},
{"2019/08/26 06:21:14.011 -04:00", "2019/08/26 06:21:15.011 -04:00"},
{"2019/08/26 06:22:14.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
},
},
// 8
{
search: timeRange{"2019/08/26 06:22:14.011 -04:00", "2019/08/26 06:22:16.011 -04:00"},
expect: []timeRange{
{"2019/08/26 06:22:14.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
},
},
}
for i, cas := range cases {
beginTime, err := sysutil.ParseTimeStamp(cas.search.start)
require.NoError(t, err)
endTime, err := sysutil.ParseTimeStamp(cas.search.end)
require.NoError(t, err)
logFiles, err := sysutil.ResolveFiles(context.Background(), filepath.Join(s.tmpDir, "tidb.log"), beginTime, endTime)
require.NoError(t, err)
require.Len(t, logFiles, len(cas.expect), fmt.Sprintf("search range (index: %d): %+v", i, cas.search))
for j, exp := range cas.expect {
beginTime, err := sysutil.ParseTimeStamp(exp.start)
require.NoError(t, err)
endTime, err := sysutil.ParseTimeStamp(exp.end)
require.NoError(t, err)
require.Equal(t, logFiles[j].BeginTime(), beginTime, fmt.Sprintf("case index: %d, expect index: %v", i, j))
require.Equal(t, logFiles[j].EndTime(), endTime, fmt.Sprintf("case index: %d, expect index: %v", i, j))
}
}
}
func TestLogIterator(t *testing.T) {
s, clean := createSearchLogSuite(t)
defer clean()
s.writeTmpFile(t, "rpc.tidb.log", []string{
`[2019/08/26 06:19:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`This is an invalid log blablabla][`,
`[2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
`[2019/08/26 06:19:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
})
// single line file
s.writeTmpFile(t, "rpc.tidb-1.log", []string{
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
// two lines file
s.writeTmpFile(t, "rpc.tidb-2.log", []string{
`[2019/08/26 06:21:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
// empty file
s.writeTmpFile(t, "rpc.tidb-3.log", []string{``})
s.writeTmpFile(t, "rpc.tidb-4.log", []string{
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`This is also an invalid log contains partern ...`,
`[2019/08/26 06:22:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
})
s.writeTmpFile(t, "rpc.tidb-5.log", []string{
`[2019/08/26 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test to TiDB."]`,
`[2019/08/27 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test txn to TiDB."]`,
})
type timeRange struct{ start, end string }
// filter by time range
cases := []struct {
search timeRange
expect []string
levels []pb.LogLevel
patterns []string
}{
// 0
{
search: timeRange{"2019/08/26 06:19:13.011 -04:00", "2019/08/26 06:22:17.011 -04:00"},
expect: []string{
`[2019/08/26 06:19:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
`[2019/08/26 06:19:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] This is also an invalid log contains partern ...`,
`[2019/08/26 06:22:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 1
{
search: timeRange{"2000/08/26 06:19:13.011 -04:00", "2099/08/26 06:22:17.011 -04:00"},
expect: []string{
`[2019/08/26 06:19:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
`[2019/08/26 06:19:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] This is also an invalid log contains partern ...`,
`[2019/08/26 06:22:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test to TiDB."]`,
`[2019/08/27 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test txn to TiDB."]`,
},
},
// 2
{
search: timeRange{"2000/08/26 06:19:13.011 -04:00", "2019/08/26 06:19:17.011 -04:00"},
expect: []string{
`[2019/08/26 06:19:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
`[2019/08/26 06:19:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 3
{
search: timeRange{"2019/08/26 06:20:14.011 -04:00", "2099/08/26 06:22:17.011 -04:00"},
expect: []string{
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] This is also an invalid log contains partern ...`,
`[2019/08/26 06:22:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test to TiDB."]`,
`[2019/08/27 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test txn to TiDB."]`,
},
},
// 4
{
search: timeRange{"2019/08/26 06:19:15.011 -04:00", "2019/08/26 06:22:14.011 -04:00"},
expect: []string{
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
`[2019/08/26 06:19:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] This is also an invalid log contains partern ...`,
`[2019/08/26 06:22:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 5
{
search: timeRange{"2019/08/26 06:19:14.011 -04:00", "2019/08/26 06:19:15.011 -04:00"},
expect: []string{
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 6
{
search: timeRange{"2019/08/26 06:19:14.011 -04:00", "2019/08/26 06:19:16.011 -04:00"},
expect: []string{
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
},
},
// 7
{
search: timeRange{"2019/08/26 06:19:14.011 -04:00", "2019/08/26 06:19:16.012 -04:00"},
expect: []string{
`[2019/08/26 06:19:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
},
},
// 8
{
search: timeRange{"2019/08/26 06:19:15.011 -04:00", "2019/08/26 06:22:14.011 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Debug},
expect: []string{
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] This is an invalid log blablabla][`,
`[2019/08/26 06:19:16.011 -04:00] [DEBUG] [2019/08/26 06:19:17.011 -04:00] ] [INFO] invalid log"]`,
},
},
// 9
{
search: timeRange{"2019/08/26 06:19:15.011 -04:00", "2019/08/26 06:22:14.011 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Trace},
expect: []string{
`[2019/08/26 06:19:17.011 -04:00] [TRACE] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 10
{
search: timeRange{"2019/08/26 06:19:15.011 -04:00", "2019/08/26 06:22:14.011 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Info},
expect: []string{
`[2019/08/26 06:20:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:21:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] This is also an invalid log contains partern ...`,
},
},
// 11
{
search: timeRange{"2019/08/26 06:19:15.011 -04:00", "2019/08/26 06:22:14.011 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Warn},
expect: []string{
`[2019/08/26 06:21:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [WARN] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 12
{
search: timeRange{"2019/08/26 06:19:14.011 -04:00", "2019/08/26 06:19:16.012 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Error},
expect: []string{
`[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
},
},
// 13
{
search: timeRange{"2019/08/26 06:19:14.011 -04:00", "2019/08/27 06:23:17.011 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*partern.*"},
expect: []string{
`[2019/08/26 06:22:14.011 -04:00] [INFO] This is also an invalid log contains partern ...`,
`[2019/08/26 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test to TiDB."]`,
`[2019/08/27 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test txn to TiDB."]`,
},
},
// 14
{
search: timeRange{"2019/08/26 06:19:14.011 -04:00", "2019/08/27 06:23:17.011 -04:00"},
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*partern.*", ".*txn.*"},
expect: []string{
`[2019/08/27 06:23:14.011 -04:00] [INFO] [printer.go:41] ["partern test txn to TiDB."]`,
},
},
}
// Set up a connection to the server.
conn, err := grpc.Dial(s.address, grpc.WithInsecure())
require.NoError(t, err)
defer func() {
require.NoError(t, conn.Close())
}()
for i, cas := range cases {
func() {
beginTime, err := sysutil.ParseTimeStamp(cas.search.start)
require.NoError(t, err)
endTime, err := sysutil.ParseTimeStamp(cas.search.end)
require.NoError(t, err)
req := &pb.SearchLogRequest{
StartTime: beginTime,
EndTime: endTime,
Levels: cas.levels,
Patterns: cas.patterns,
}
client := pb.NewDiagnosticsClient(conn)
// Contact the server and print out its response.
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
stream, err := client.SearchLog(ctx, req)
require.NoError(t, err)
resp := &pb.SearchLogResponse{}
for {
res, err := stream.Recv()
if err != nil && err == io.EOF {
break
}
require.NoError(t, err)
require.NotNil(t, res)
resp.Messages = append(resp.Messages, res.Messages...)
}
var items []*pb.LogMessage
for _, s := range cas.expect {
item, err := sysutil.ParseLogItem(s)
require.NoError(t, err)
items = append(items, item)
}
require.Equal(t, len(items), len(resp.Messages), fmt.Sprintf("search log (index: %d) failed", i))
require.Equal(t, items, resp.Messages, fmt.Sprintf("search log (index: %d) failed", i))
}()
}
}
func TestParseLogLevel(t *testing.T) {
cases := []struct {
s string
l pb.LogLevel
}{
{"debug", pb.LogLevel_Debug},
{"DEBUG", pb.LogLevel_Debug},
{"info", pb.LogLevel_Info},
{"INFO", pb.LogLevel_Info},
{"warn", pb.LogLevel_Warn},
{"WARN", pb.LogLevel_Warn},
{"trace", pb.LogLevel_Trace},
{"TRACE", pb.LogLevel_Trace},
{"critical", pb.LogLevel_Critical},
{"CRITICAL", pb.LogLevel_Critical},
{"error", pb.LogLevel_Error},
{"ERROR", pb.LogLevel_Error},
{"invalid", pb.LogLevel_UNKNOWN},
}
for _, cas := range cases {
got := sysutil.ParseLogLevel(cas.s)
require.Equal(t, cas.l, got, fmt.Sprintf("parse %v, expected: %v, got: %v", cas.s, cas.l, got))
}
}
func TestParseLogItem(t *testing.T) {
cases := []struct {
raw string
time string
level pb.LogLevel
message string
}{
{
raw: `[2019/08/26 06:19:15.011 -04:00] [ERROR] [printer.go:41] ["Welcome to TiDB."]`,
time: `2019/08/26 06:19:15.011 -04:00`,
level: pb.LogLevel_Error,
message: `[printer.go:41] ["Welcome to TiDB."]`,
},
}
for _, cas := range cases {
item, err := sysutil.ParseLogItem(cas.raw)
require.NoError(t, err)
require.Equal(t, cas.level, item.Level)
tt, err := sysutil.ParseTimeStamp(cas.time)
require.NoError(t, err)
require.Equal(t, tt, item.Time)
require.Equal(t, cas.message, item.Message)
}
}
func TestReadLastLinesHuge(t *testing.T) {
s, clean := createSearchLogSuite(t)
defer clean()
// step 1. initial a log file with lastHugeLine
lastHugeLine := make([]byte, 0, 1024+512)
lastHugeLine = append(lastHugeLine, []byte(`[2019/08/26 06:22:20.011 -04:00] [INFO] [printer.go:41] `)...)
for len(lastHugeLine) < cap(lastHugeLine) {
if len(lastHugeLine) == 1023 || len(lastHugeLine) == cap(lastHugeLine)-1 {
lastHugeLine = append(lastHugeLine, '\n')
} else {
lastHugeLine = append(lastHugeLine, 'a')
}
}
s.writeTmpFile(t, "tidb.log", []string{
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
string(lastHugeLine),
})
// step 2. open it as read only mode
path := filepath.Join(s.tmpDir, "tidb.log")
file, err := os.OpenFile(path, os.O_RDONLY, os.ModePerm)
require.NoError(t, err, fmt.Sprintf("open file %s failed", path))
defer func() {
require.NoError(t, file.Close())
}()
stat, err := file.Stat()
require.NoError(t, err)
lastLines, _, err := sysutil.ReadLastLines(context.Background(), file, stat.Size())
require.NoError(t, err)
require.Len(t, lastLines, 4)
}
func TestReadAndAppendLogFile(t *testing.T) {
s, clean := createSearchLogSuite(t)
defer clean()
// step 1. initial a log file
s.writeTmpFile(t, "tidb.log", []string{
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]` + "\n",
})
// step 2. open it as read only mode
path := filepath.Join(s.tmpDir, "tidb.log")
file, err := os.OpenFile(path, os.O_RDONLY, os.ModePerm)
require.NoError(t, err, fmt.Sprintf("open file %s failed", path))
defer func() {
require.NoError(t, file.Close())
}()
stat, _ := file.Stat()
filesize := stat.Size()
// step 3. run a goroutine to append some new logs to the file
go func() {
fileAppend, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY, os.ModeAppend)
require.NoError(t, err, fmt.Sprintf("open file as append mode %s failed", path))
defer func() {
require.NoError(t, fileAppend.Close())
}()
for i := 40; i < 45; i++ {
line := fmt.Sprintf("[2020/07/07 06:%d:17.011 -04:00] [INFO] appended logs\n", i)
_, err := fileAppend.WriteString(line)
require.NoError(t, err, fmt.Sprintf("write %s failed", line))
time.Sleep(10 * time.Millisecond)
}
}()
// step 4. keep calling ReadLastLines until reach the beginning
expected := []string{
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]` + "\n" +
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]` + "\n" +
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]` + "\n" +
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]` + "\n",
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]` + "\n",
}
i := 0
endCursor := filesize
for {
lines, readBytes, _ := sysutil.ReadLastLines(context.Background(), file, endCursor)
// read out the file
if readBytes == 0 {
break
}
require.Equal(t, expected[i], strings.Join(lines, "\n"), fmt.Sprintf("expected: %v, got: %v", expected[i], lines))
i++
endCursor -= int64(readBytes)
time.Sleep(15 * time.Millisecond)
}
}
func TestCompressLog(t *testing.T) {
s, clean := createSearchLogSuite(t)
defer clean()
s.writeTmpGzipFile(t, "rpc.tidb-2.log.gz", []string{
`[2019/08/26 06:22:08.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:09.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:10.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:11.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:12.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
s.writeTmpGzipFile(t, "rpc.tidb-1.log.gz", []string{
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
s.writeTmpFile(t, "rpc.tidb.log", []string{
`[2019/08/26 06:22:18.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:19.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:20.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:21.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:22.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
type timeRange struct{ start, end string }
cases := []struct {
search timeRange
expectFileNum int
expect []string
levels []pb.LogLevel
patterns []string
}{
{
search: timeRange{"2019/08/26 06:22:14.000 -04:00", "2019/08/26 06:22:16.000 -04:00"},
expectFileNum: 1,
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*TiDB.*"},
expect: []string{
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
},
},
{
search: timeRange{"2019/08/26 06:22:10.000 -04:00", "2019/08/26 06:22:16.000 -04:00"},
expectFileNum: 2,
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*TiDB.*"},
expect: []string{
`[2019/08/26 06:22:10.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:11.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:12.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
},
},
{
search: timeRange{"2019/08/26 06:22:14.000 -04:00", "2019/08/26 06:22:20.000 -04:00"},
expectFileNum: 2,
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*TiDB.*"},
expect: []string{
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:18.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:19.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
},
},
{
search: timeRange{"2019/08/26 06:22:10.000 -04:00", "2019/08/26 06:22:20.000 -04:00"},
expectFileNum: 3,
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*TiDB.*"},
expect: []string{
`[2019/08/26 06:22:10.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:11.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:12.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:18.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:19.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
},
},
{
// When file1.endtime < search.start < file2.begintime,
// it will scan one more file, because we don't now the last item for a compressed file.
search: timeRange{"2019/08/26 06:22:13.000 -04:00", "2019/08/26 06:22:20.000 -04:00"},
expectFileNum: 3,
levels: []pb.LogLevel{pb.LogLevel_Info},
patterns: []string{".*TiDB.*"},
expect: []string{
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:18.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:19.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
},
},
}
// Set up a connection to the server.
conn, err := grpc.Dial(s.address, grpc.WithInsecure())
require.NoError(t, err)
for i, cas := range cases {
beginTime, err := sysutil.ParseTimeStamp(cas.search.start)
require.NoError(t, err)
endTime, err := sysutil.ParseTimeStamp(cas.search.end)
require.NoError(t, err)
logfile, err := sysutil.ResolveFiles(context.Background(), filepath.Join(s.tmpDir, "rpc.tidb.log"), beginTime, endTime)
require.NoError(t, err)
require.Len(t, logfile, cas.expectFileNum)
req := &pb.SearchLogRequest{
StartTime: beginTime,
EndTime: endTime,
Levels: cas.levels,
Patterns: cas.patterns,
}
client := pb.NewDiagnosticsClient(conn)
// Contact the server and print out its response.
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
stream, err := client.SearchLog(ctx, req)
require.NoError(t, err)
resp := &pb.SearchLogResponse{}
for {
res, err := stream.Recv()
if err != nil && err == io.EOF {
break
}
require.NoError(t, err)
require.NotNil(t, res)
resp.Messages = append(resp.Messages, res.Messages...)
}
var items []*pb.LogMessage
for _, s := range cas.expect {
item, err := sysutil.ParseLogItem(s)
require.NoError(t, err)
items = append(items, item)
}
require.Equal(t, len(items), len(resp.Messages), fmt.Sprintf("search log (index: %d) failed", i))
require.Equal(t, items, resp.Messages, fmt.Sprintf("search log (index: %d) failed", i))
}
}
func BenchmarkReadLastLines(b *testing.B) {
s, clean := createSearchLogSuite(b)
defer clean()
// step 1. initial a log file
s.writeTmpFile(b, "tidb.log", []string{
`[2019/08/26 06:22:13.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:14.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:15.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:16.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
`[2019/08/26 06:22:17.011 -04:00] [INFO] [printer.go:41] ["Welcome to TiDB."]`,
})
// step 2. open it as read only mode
path := filepath.Join(s.tmpDir, "tidb.log")
file, err := os.OpenFile(path, os.O_RDONLY, os.ModePerm)
require.NoError(b, err, fmt.Sprintf("open file %s failed", path))
defer func() {
require.NoError(b, file.Close())
}()
stat, _ := file.Stat()
filesize := stat.Size()
// step 3. start to benchmark
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = sysutil.ReadLastLines(context.Background(), file, filesize)
}
}
func BenchmarkReadLastLinesOfHugeLine(b *testing.B) {
s, clean := createSearchLogSuite(b)
defer clean()
// step 1. initial a huge line log file
hugeLine := make([]byte, 1024*1024*10)
for i := range hugeLine {
hugeLine[i] = 'a' + byte(i%26)
}
s.writeTmpFile(b, "tidb.log", []string{string(hugeLine)})
// step 2. open it as read only mode
path := filepath.Join(s.tmpDir, "tidb.log")
file, err := os.OpenFile(path, os.O_RDONLY, os.ModePerm)
require.NoError(b, err, fmt.Sprintf("open file %s failed", path))
defer func() {
require.NoError(b, file.Close())
}()
stat, _ := file.Stat()
filesize := stat.Size()
// step 3. start to benchmark
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _, _ = sysutil.ReadLastLines(context.Background(), file, filesize)
}
}
// run benchmark by `go test -check.b`
// result:
// searchLogSuite.BenchmarkReadLastLines 1000000 2008 ns/op
// searchLogSuite.BenchmarkReadLastLines 1000000 2193 ns/op
// result for the old readLastLine method when last line is 76 bytes long:
// searchLogSuite.BenchmarkReadLastLine 10000 124423 ns/op
// searchLogSuite.BenchmarkReadLastLine 10000 126135 ns/op
// result for the old readLastLine method when last line is 76*2 bytes long:
// searchLogSuite.BenchmarkReadLastLine 10000 247836 ns/op
// searchLogSuite.BenchmarkReadLastLine 10000 251958 ns/op