[to #323] *: Remove tidb dependency

cdc/cdc/capture/capture.go

@@ -24,7 +24,6 @@
 	"github.com/pingcap/errors"
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/log"
-	tidbkv "github.com/pingcap/tidb/kv"
 	"github.com/tikv/client-go/v2/tikv"
 	pd "github.com/tikv/pd/client"
 	"go.etcd.io/etcd/client/v3/concurrency"
@@ -61,7 +60,7 @@
 	election *concurrency.Election
 
 	pdClient         pd.Client
-	kvStorage        tidbkv.Storage
+	kvStorage        tikv.Storage
 	createEtcdClient createEtcdClientFunc
 	etcdClient       *etcd.CDCEtcdClient
 	grpcPool         kv.GrpcPool
@@ -75,7 +74,7 @@
 }
 
 // NewCapture returns a new Capture instance
-func NewCapture(pdClient pd.Client, kvStorage tidbkv.Storage, createEtcdClient createEtcdClientFunc) *Capture {
+func NewCapture(pdClient pd.Client, kvStorage tikv.Storage, createEtcdClient createEtcdClientFunc) *Capture {
 	return &Capture{
 		pdClient:         pdClient,
 		kvStorage:        kvStorage,

cdc/cdc/capture/http_handler.go

@@ -20,12 +20,12 @@
 
 	"github.com/gin-gonic/gin"
 	"github.com/pingcap/log"
-	"github.com/pingcap/tidb/br/pkg/httputil"
 	"github.com/tikv/client-go/v2/oracle"
 	"github.com/tikv/migration/cdc/cdc/model"
 	"github.com/tikv/migration/cdc/cdc/owner"
 	"github.com/tikv/migration/cdc/pkg/config"
 	cerror "github.com/tikv/migration/cdc/pkg/errors"
+	"github.com/tikv/migration/cdc/pkg/httputil"
 	"github.com/tikv/migration/cdc/pkg/logutil"
 	"github.com/tikv/migration/cdc/pkg/retry"
 	"github.com/tikv/migration/cdc/pkg/version"
@@ -782,7 +782,7 @@
 	}
 
 	// forward to owner
-	cli := httputil.NewClient(tslConfig)
+	cli := httputil.NewClientByTLSConfig(tslConfig)
 	resp, err := cli.Do(req)
 	if err != nil {
 		_ = c.Error(err)

cdc/cdc/http_status_test.go

@@ -28,11 +28,11 @@ import (
 
 	"github.com/pingcap/check"
 	"github.com/pingcap/failpoint"
-	"github.com/pingcap/tidb/br/pkg/httputil"
 	"github.com/tikv/migration/cdc/cdc/capture"
 	"github.com/tikv/migration/cdc/cdc/model"
 	"github.com/tikv/migration/cdc/pkg/config"
 	cerrors "github.com/tikv/migration/cdc/pkg/errors"
+	"github.com/tikv/migration/cdc/pkg/httputil"
 	"github.com/tikv/migration/cdc/pkg/retry"
 	security2 "github.com/tikv/migration/cdc/pkg/security"
 	"github.com/tikv/migration/cdc/pkg/util/testleak"
@@ -246,7 +246,7 @@ func (s *httpStatusSuite) TestServerTLSWithoutCommonName(c *check.C) {
 		if err != nil {
 			c.Assert(err, check.IsNil)
 		}
-		cli := httputil.NewClient(tlsConfig)
+		cli := httputil.NewClientByTLSConfig(tlsConfig)
 		resp, err := cli.Get(statusURL)
 		if err != nil {
 			return err
@@ -324,7 +324,7 @@ func (s *httpStatusSuite) TestServerTLSWithCommonName(c *check.C) {
 		if err != nil {
 			c.Assert(err, check.IsNil)
 		}
-		cli := httputil.NewClient(tlsConfig)
+		cli := httputil.NewClientByTLSConfig(tlsConfig)
 		resp, err := cli.Get(statusURL)
 		if err != nil {
 			return err

cdc/cdc/kv/client_test.go

@@ -32,7 +32,6 @@ import (
 	"github.com/pingcap/kvproto/pkg/errorpb"
 	"github.com/pingcap/kvproto/pkg/metapb"
 	"github.com/pingcap/log"
-	"github.com/pingcap/tidb/kv"
 	"github.com/pingcap/tidb/store/mockstore/mockcopr"
 	"github.com/stretchr/testify/require"
 	"github.com/tikv/client-go/v2/oracle"
@@ -399,9 +398,8 @@ func (s *clientSuite) TestConnectOfflineTiKV(c *check.C) {
 	cluster.ChangeLeader(3, 5)
 
 	ts, err := kvStorage.CurrentTimestamp(oracle.GlobalTxnScope)
-	ver := kv.NewVersion(ts)
 	c.Assert(err, check.IsNil)
-	ch2 <- makeEvent(ver.Ver)
+	ch2 <- makeEvent(ts)
 	var event model.RegionFeedEvent
 	// consume the first resolved ts event, which is sent before region starts
 	<-eventCh
@@ -417,7 +415,7 @@ func (s *clientSuite) TestConnectOfflineTiKV(c *check.C) {
 	case <-time.After(time.Second):
 		c.Fatalf("reconnection not succeed in 1 second")
 	}
-	checkEvent(event, GetSafeResolvedTs(ver.Ver))
+	checkEvent(event, GetSafeResolvedTs(ts))
 
 	// check gRPC connection active counter is updated correctly
 	bucket, ok := grpcPool.bucketConns[invalidStore]

cdc/cdc/kv/region_worker.go

@@ -312,7 +312,7 @@
 				log.Warn("failed to get current version from PD", zap.Error(err))
 				continue
 			}
-			currentTimeFromPD := oracle.GetTimeFromTS(version.Ver)
+			currentTimeFromPD := oracle.GetTimeFromTS(version)
 			expired := make([]*regionTsInfo, 0)
 			for w.rtsManager.Len() > 0 {
 				item := w.rtsManager.Pop()
@@ -330,7 +330,7 @@
 			if len(expired) == 0 {
 				continue
 			}
-			maxVersion := oracle.ComposeTS(oracle.GetPhysical(currentTimeFromPD.Add(-10*time.Second)), 0)
+			// maxVersion := oracle.ComposeTS(oracle.GetPhysical(currentTimeFromPD.Add(-10*time.Second)), 0)
 			for _, rts := range expired {
 				state, ok := w.getRegionState(rts.regionID)
 				if !ok || state.isStopped() {
@@ -359,18 +359,19 @@
 						w.rtsManager.Upsert(rts)
 						continue
 					}
-					log.Warn("region not receiving resolved event from tikv or resolved ts is not pushing for too long time, try to resolve lock",
+					log.Warn("region not receiving resolved event from tikv or resolved ts is not pushing for too long time",
 						zap.Uint64("regionID", rts.regionID),
 						zap.Stringer("span", state.getRegionSpan()),
 						zap.Duration("duration", sinceLastResolvedTs),
 						zap.Duration("lastEvent", sinceLastEvent),
 						zap.Uint64("resolvedTs", lastResolvedTs),
 					)
-					err = w.session.lockResolver.Resolve(ctx, rts.regionID, maxVersion)
-					if err != nil {
-						log.Warn("failed to resolve lock", zap.Uint64("regionID", rts.regionID), zap.Error(err))
-						continue
-					}
+					// Resolve locks for RawKV is not necessary. Add it back after we support TxnKV.
+					// err = w.session.lockResolver.Resolve(ctx, rts.regionID, maxVersion)
+					// if err != nil {
+					// 	log.Warn("failed to resolve lock", zap.Uint64("regionID", rts.regionID), zap.Error(err))
+					// 	continue
+					// }
 					rts.ts.penalty = 0
 				}
 				rts.ts.resolvedTs = lastResolvedTs

cdc/cdc/kv/store_op.go

@@ -14,20 +14,15 @@
 package kv
 
 import (
-	"fmt"
 	"sync"
 	"time"
 
 	"github.com/pingcap/errors"
 	"github.com/pingcap/log"
-	tidbconfig "github.com/pingcap/tidb/config"
-	"github.com/pingcap/tidb/kv"
-	tidbkv "github.com/pingcap/tidb/kv"
-	"github.com/pingcap/tidb/meta"
-	"github.com/pingcap/tidb/store"
-	"github.com/pingcap/tidb/store/driver"
+	tikvconfig "github.com/tikv/client-go/v2/config"
 	"github.com/tikv/client-go/v2/oracle"
 	"github.com/tikv/client-go/v2/tikv"
+	"github.com/tikv/client-go/v2/txnkv"
 	"github.com/tikv/migration/cdc/cdc/model"
 	cerror "github.com/tikv/migration/cdc/pkg/errors"
 	"github.com/tikv/migration/cdc/pkg/flags"
@@ -38,7 +33,7 @@
 // TiKVStorage is the tikv storage interface used by CDC.
 type TiKVStorage interface {
 	tikv.Storage
-	GetCachedCurrentVersion() (version tidbkv.Version, err error)
+	GetCachedCurrentVersion() (version uint64, err error)
 }
 
 const (
@@ -80,7 +75,7 @@
 }
 
 // GetCachedCurrentVersion gets the cached version of currentVersion, and update the cache if necessary
-func (s *StorageWithCurVersionCache) GetCachedCurrentVersion() (version tidbkv.Version, err error) {
+func (s *StorageWithCurVersionCache) GetCachedCurrentVersion() (version uint64, err error) {
 	curVersionCacheMu.Lock()
 	entry, exists := curVersionCache[s.cacheKey]
 	curVersionCacheMu.Unlock()
@@ -99,42 +94,30 @@
 		if err != nil {
 			return
 		}
-		ver := kv.NewVersion(ts)
-		entry.ts = ver.Ver
+		entry.ts = ts
 		entry.lastUpdated = time.Now()
 	}
 
-	version.Ver = entry.ts
+	version = entry.ts
 	return
 }
 
-// GetSnapshotMeta returns tidb meta information
-// TODO: Simplify the signature of this function
-func GetSnapshotMeta(tiStore tidbkv.Storage, ts uint64) (*meta.Meta, error) {
-	snapshot := tiStore.GetSnapshot(tidbkv.NewVersion(ts))
-	return meta.NewSnapshotMeta(snapshot), nil
-}
-
 // CreateTiStore creates a new tikv storage client
-func CreateTiStore(urls string, credential *security.Credential) (kv.Storage, error) {
+func CreateTiStore(urls string, credential *security.Credential) (tikv.Storage, error) {
 	urlv, err := flags.NewURLsValue(urls)
 	if err != nil {
 		return nil, errors.Trace(err)
 	}
 
-	// Ignore error if it is already registered.
-	_ = store.Register("tikv", driver.TiKVDriver{})
-
 	if credential.CAPath != "" {
-		conf := tidbconfig.GetGlobalConfig()
+		conf := tikvconfig.GetGlobalConfig()
 		conf.Security.ClusterSSLCA = credential.CAPath
 		conf.Security.ClusterSSLCert = credential.CertPath
 		conf.Security.ClusterSSLKey = credential.KeyPath
-		tidbconfig.StoreGlobalConfig(conf)
+		tikvconfig.StoreGlobalConfig(conf)
 	}
 
-	tiPath := fmt.Sprintf("tikv://%s?disableGC=true", urlv.HostString())
-	tiStore, err := store.New(tiPath)
+	tiStore, err := txnkv.NewClient(urlv.HostList())
 	if err != nil {
 		return nil, cerror.WrapError(cerror.ErrNewStore, err)
 	}