config: use fsnotify to do config file reload

cmd/tiproxy/main.go

@@ -19,7 +19,6 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/pingcap/TiProxy/lib/config"
 	"github.com/pingcap/TiProxy/lib/util/cmd"
 	"github.com/pingcap/TiProxy/lib/util/errors"
 	"github.com/pingcap/TiProxy/pkg/sctx"
@@ -38,44 +37,16 @@ func main() {
 		Short:   "start the proxy server",
 		Version: fmt.Sprintf("%s, commit %s", Version, Commit),
 	}
+	rootCmd.SetOutput(os.Stdout)
+	rootCmd.SetErr(os.Stderr)
 
-	configFile := rootCmd.PersistentFlags().String("config", "", "proxy config file path")
-	logEncoder := rootCmd.PersistentFlags().String("log_encoder", "tidb", "log in format of tidb, console, or json")
-	logLevel := rootCmd.PersistentFlags().String("log_level", "", "log level")
-	_ = rootCmd.PersistentFlags().String("cluster_name", "tiproxy", "default cluster name, used to generate node name and differential clusters in dns discovery")
-	_ = rootCmd.PersistentFlags().String("node_name", "", "by default, it is generate prefixed by cluster-name")
-	_ = rootCmd.PersistentFlags().String("pub_addr", "127.0.0.1", "IP or domain, will be used as the accessible addr for others")
-	_ = rootCmd.PersistentFlags().StringSlice("bootstrap_clusters", []string{}, "lists of other nodes in the cluster, e.g. 'n1=xxx,n2=xxx', where xx are IPs or domains")
-	_ = rootCmd.PersistentFlags().String("bootstrap_discovery_etcd", "", "etcd discovery service url")
-	_ = rootCmd.PersistentFlags().String("bootstrap_discovery_dns", "", "dns srv discovery")
+	sctx := &sctx.Context{}
 
-	rootCmd.RunE = func(cmd *cobra.Command, _ []string) error {
-		var proxyConfigData []byte
-
-		if *configFile != "" {
-			var err error
-			proxyConfigData, err = os.ReadFile(*configFile)
-			if err != nil {
-				return err
-			}
-		}
-
-		cfg, err := config.NewConfig(proxyConfigData)
-		if err != nil {
-			return err
-		}
-
-		if *logEncoder != "" {
-			cfg.Log.Encoder = *logEncoder
-		}
-		if *logLevel != "" {
-			cfg.Log.Level = *logLevel
-		}
-
-		sctx := &sctx.Context{
-			Config: cfg,
-		}
+	rootCmd.PersistentFlags().StringVar(&sctx.ConfigFile, "config", "", "proxy config file path")
+	rootCmd.PersistentFlags().StringVar(&sctx.Overlay.Log.Encoder, "log_encoder", "", "log in format of tidb, console, or json")
+	rootCmd.PersistentFlags().StringVar(&sctx.Overlay.Log.Level, "log_level", "", "log level")
 
+	rootCmd.RunE = func(cmd *cobra.Command, _ []string) error {
 		srv, err := server.NewServer(cmd.Context(), sctx)
 		if err != nil {
 			return errors.Wrapf(err, "fail to create server")

go.mod

@@ -3,7 +3,9 @@ module github.com/pingcap/TiProxy
 go 1.19
 
 require (
+	github.com/BurntSushi/toml v1.2.1
 	github.com/cenkalti/backoff/v4 v4.2.0
+	github.com/fsnotify/fsnotify v1.6.0
 	github.com/gin-contrib/pprof v1.4.0
 	github.com/gin-contrib/zap v0.0.2
 	github.com/gin-gonic/gin v1.8.1
@@ -27,8 +29,7 @@ require (
 )
 
 require (
-	cloud.google.com/go/compute/metadata v0.2.0 // indirect
-	github.com/BurntSushi/toml v1.2.1 // indirect
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
 	github.com/andres-erbsen/clock v0.0.0-20160526145045-9e14626cd129 // indirect
 	github.com/benbjohnson/clock v1.3.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
@@ -80,7 +81,7 @@ require (
 	github.com/ngaut/sync2 v0.0.0-20141008032647-7a24ed77b2ef // indirect
 	github.com/opentracing/basictracer-go v1.0.0 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
 	github.com/pingcap/check v0.0.0-20211026125417-57bd13f7b5f0 // indirect
 	github.com/pingcap/errors v0.11.5-0.20221009092201-b66cddb77c32 // indirect
 	github.com/pingcap/failpoint v0.0.0-20220423142525-ae43b7f4e5c3 // indirect

go.sum

@@ -20,8 +20,9 @@ cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvf
 cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
 cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
-cloud.google.com/go/compute/metadata v0.2.0 h1:nBbNSZyDpkNlo3DepaaLKVuO7ClyifSAmNloSCZrHnQ=
-cloud.google.com/go/compute/metadata v0.2.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
+cloud.google.com/go/compute v1.14.0 h1:hfm2+FfxVmnRlh6LpB7cg1ZNU+5edAHmW679JePztk0=
+cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
 cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
@@ -186,6 +187,8 @@ github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga
 github.com/flosch/pongo2 v0.0.0-20190707114632-bbf5a6c351f4/go.mod h1:T9YF2M40nIgbVgp3rreNmTged+9HrbNTIQf1PsaIiTA=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
+github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
+github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/gavv/httpexpect v2.0.0+incompatible/go.mod h1:x+9tiU1YnrOvnB725RkpoLv1M62hOWzwo5OXotisrKc=
 github.com/getsentry/raven-go v0.2.0/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
@@ -508,8 +511,8 @@ github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYr
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pelletier/go-toml/v2 v2.0.1/go.mod h1:r9LEWfGN8R5k0VXJ+0BkIe7MYkRdwZOjgMj2KwnJFUo=
-github.com/pelletier/go-toml/v2 v2.0.2 h1:+jQXlF3scKIcSEKkdHzXhCTDLPFi5r1wnK6yPS+49Gw=
-github.com/pelletier/go-toml/v2 v2.0.2/go.mod h1:MovirKjgVRESsAvNZlAjtFwV867yGuwRkXbG66OzopI=
+github.com/pelletier/go-toml/v2 v2.0.5 h1:ipoSadvV8oGUjnUbMub59IDPPwfxF694nG/jwbMiyQg=
+github.com/pelletier/go-toml/v2 v2.0.5/go.mod h1:OMHamSCAODeSsVrwwvcJOaoN0LIUIaFVNZzmWyNfXas=
 github.com/pingcap/badger v1.5.1-0.20221229114011-ddffaa0fff7a h1:QB16qn8wx5X4SRn3/5axrjPMNS3WRt87+5Bfrnmt6IA=
 github.com/pingcap/check v0.0.0-20190102082844-67f458068fc8/go.mod h1:B1+S9LNcuMyLH/4HMTViQOJevkGiik3wW2AN9zb2fNQ=
 github.com/pingcap/check v0.0.0-20211026125417-57bd13f7b5f0 h1:HVl5539r48eA+uDuX/ziBmQCxzT1pGrzWbKuXT46Bq0=
@@ -651,7 +654,6 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
@@ -717,7 +719,7 @@ go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
 go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.etcd.io/etcd/api/v3 v3.5.6 h1:Cy2qx3npLcYqTKqGJzMypnMv2tiRyifZJ17BlWIWA7A=
 go.etcd.io/etcd/api/v3 v3.5.6/go.mod h1:KFtNaxGDw4Yx/BA4iPPwevUTAuqcsPxzyX8PHydchN8=
-go.etcd.io/etcd/client/pkg/v3 v3.5.4/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
+go.etcd.io/etcd/client/pkg/v3 v3.5.5/go.mod h1:ggrwbk069qxpKPq8/FKkQ3Xq9y39kbFR4LnKszpRXeQ=
 go.etcd.io/etcd/client/pkg/v3 v3.5.6 h1:TXQWYceBKqLp4sa87rcPs11SXxUA/mHwH975v+BDvLU=
 go.etcd.io/etcd/client/pkg/v3 v3.5.6/go.mod h1:ggrwbk069qxpKPq8/FKkQ3Xq9y39kbFR4LnKszpRXeQ=
 go.etcd.io/etcd/client/v2 v2.305.6 h1:fIDR0p4KMjw01MJMfUIDWdQbjo06PD6CeYM5z4EHLi0=
@@ -781,6 +783,7 @@ go.uber.org/multierr v1.4.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
+go.uber.org/multierr v1.8.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
 go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=
 go.uber.org/multierr v1.9.0/go.mod h1:X2jQV1h+kxSjClGpnseKVIxpmcjrj7MNnI0bnlfKTVQ=
 go.uber.org/ratelimit v0.2.0 h1:UQE2Bgi7p2B85uP5dC2bbRtig0C+OeNRnNEafLjsLPA=
@@ -974,6 +977,7 @@ golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
 golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=

lib/cli/config.go

@@ -36,7 +36,7 @@ func GetConfigCmd(ctx *Context) *cobra.Command {
 		setProxy := &cobra.Command{
 			Use: "set",
 		}
-		input := setProxy.Flags().String("input", "", "specify the input json file for proxy config")
+		input := setProxy.Flags().String("input", "", "specify the input toml file for proxy config")
 		setProxy.RunE = func(cmd *cobra.Command, args []string) error {
 			b := cmd.InOrStdin()
 			if *input != "" {

lib/cli/main.go

@@ -18,6 +18,7 @@ import (
 	"crypto/tls"
 	"net"
 	"net/http"
+	"os"
 	"time"
 
 	"github.com/pingcap/TiProxy/lib/config"
@@ -32,6 +33,8 @@ func GetRootCmd(tlsConfig *tls.Config) *cobra.Command {
 		Short:        "cli",
 		SilenceUsage: true,
 	}
+	rootCmd.SetOutput(os.Stdout)
+	rootCmd.SetErr(os.Stderr)
 
 	ctx := &Context{}
 

lib/config/proxy.go

@@ -110,7 +110,7 @@ type Security struct {
 	SQLTLS     TLSConfig `yaml:"sql-tls,omitempty" toml:"sql-tls,omitempty" json:"sql-tls,omitempty"`
 }
 
-func NewConfig(data []byte) (*Config, error) {
+func NewConfig() *Config {
 	var cfg Config
 
 	cfg.Proxy.Addr = "0.0.0.0:6000"
@@ -128,16 +128,7 @@ func NewConfig(data []byte) (*Config, error) {
 
 	cfg.Advance.IgnoreWrongNamespace = true
 
-	if len(data) > 0 {
-		if err := toml.Unmarshal(data, &cfg); err != nil {
-			return nil, err
-		}
-	}
-
-	if err := cfg.Check(); err != nil {
-		return nil, err
-	}
-	return &cfg, nil
+	return &cfg
 }
 
 func (cfg *Config) Clone() *Config {
@@ -146,12 +137,13 @@ func (cfg *Config) Clone() *Config {
 }
 
 func (cfg *Config) Check() error {
+
 	if cfg.Workdir == "" {
 		d, err := os.Getwd()
 		if err != nil {
 			return err
 		}
-		cfg.Workdir = filepath.Clean(d)
+		cfg.Workdir = filepath.Clean(filepath.Join(d, "work"))
 	}
 
 	switch cfg.Proxy.ProxyProtocol {
@@ -160,6 +152,7 @@ func (cfg *Config) Check() error {
 	default:
 		return errors.Wrapf(ErrUnsupportedProxyProtocolVersion, "%s", cfg.Proxy.ProxyProtocol)
 	}
+
 	return nil
 }
 

lib/config/proxy_test.go

@@ -19,6 +19,7 @@ import (
 	"path/filepath"
 	"testing"
 
+	"github.com/BurntSushi/toml"
 	"github.com/stretchr/testify/require"
 )
 
@@ -93,7 +94,8 @@ var testProxyConfig = Config{
 func TestProxyConfig(t *testing.T) {
 	data1, err := testProxyConfig.ToBytes()
 	require.NoError(t, err)
-	cfg, err := NewConfig(data1)
+	var cfg Config
+	err = toml.Unmarshal(data1, &cfg)
 	require.NoError(t, err)
 	data2, err := cfg.ToBytes()
 	require.NoError(t, err)
@@ -113,7 +115,7 @@ func TestProxyCheck(t *testing.T) {
 			post: func(t *testing.T, c *Config) {
 				cwd, err := os.Getwd()
 				require.NoError(t, err)
-				require.Equal(t, filepath.Clean(cwd), c.Workdir)
+				require.Equal(t, filepath.Clean(filepath.Join(cwd, "work")), c.Workdir)
 			},
 		},
 		{

lib/go.mod

@@ -4,18 +4,18 @@ go 1.16
 
 require (
 	github.com/spf13/cobra v1.5.0
-	github.com/stretchr/testify v1.8.0
-	go.etcd.io/etcd/client/pkg/v3 v3.5.4
+	github.com/stretchr/testify v1.8.1
+	go.etcd.io/etcd/client/pkg/v3 v3.5.5
 	go.uber.org/atomic v1.9.0
 	go.uber.org/zap v1.23.0
 )
 
 require (
 	github.com/BurntSushi/toml v0.3.1
-	github.com/kr/text v0.2.0 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	go.uber.org/multierr v1.7.0 // indirect
-	golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
+	go.uber.org/multierr v1.8.0 // indirect
+	golang.org/x/sys v0.0.0-20220908164124-27713097b956 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 )

lib/go.sum

@@ -12,8 +12,9 @@ github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5x
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -23,29 +24,33 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
+github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
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@@ -65,8 +70,8 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
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-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220908164124-27713097b956 h1:XeJjHH1KiLpKGb6lvMiksZ9l0fVUh+AmGcm0nOMEBOY=
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@@ -81,6 +86,7 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
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