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http: add region-id when getting mvcc by handle #11436

Merged
merged 12 commits into from
Aug 1, 2019
Merged

http: add region-id when getting mvcc by handle #11436

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e126194
add region-id for mvcc
Jul 25, 2019
607e914
run gofmt
Jul 25, 2019
af09784
manual test and fixed
Jul 25, 2019
680ab3e
run gofmt
Jul 25, 2019
ad9a8ba
fix ci
Jul 25, 2019
eb08f73
fix error
Jul 25, 2019
96dbf34
address comment
Jul 26, 2019
efeef7c
change return value
Jul 30, 2019
6878fda
add function
Jul 31, 2019
8462836
Merge branch 'master' into addRegionInfo
Jul 31, 2019
691fc8d
Merge branch 'master' into addRegionInfo
sre-bot Jul 31, 2019
fad0c6e
Merge branch 'master' into addRegionInfo
Aug 1, 2019
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48 changes: 40 additions & 8 deletions server/http_handler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -132,17 +132,33 @@ func (s *Server) newTikvHandlerTool() *tikvHandlerTool {
}

type mvccKV struct {
Key string `json:"key"`
Value *kvrpcpb.MvccGetByKeyResponse `json:"value"`
Key string `json:"key"`
RegionID uint64 `json:"region_id"`
Value *kvrpcpb.MvccGetByKeyResponse `json:"value"`
}

func (t *tikvHandlerTool) getRegionIDByKey(encodedKey []byte) (uint64, error) {
keyLocation, err := t.RegionCache.LocateKey(tikv.NewBackoffer(context.Background(), 500), encodedKey)
if err != nil {
return 0, err
}
return keyLocation.Region.GetID(), nil
}

func (t *tikvHandlerTool) getMvccByHandle(tableID, handle int64) (*mvccKV, error) {
encodedKey := tablecodec.EncodeRowKeyWithHandle(tableID, handle)
data, err := t.GetMvccByEncodedKey(encodedKey)
return &mvccKV{Key: strings.ToUpper(hex.EncodeToString(encodedKey)), Value: data}, err
if err != nil {
return nil, err
}
regionID, err := t.getRegionIDByKey(encodedKey)
if err != nil {
return nil, err
}
return &mvccKV{Key: strings.ToUpper(hex.EncodeToString(encodedKey)), Value: data, RegionID: regionID}, err
}

func (t *tikvHandlerTool) getMvccByStartTs(startTS uint64, startKey, endKey []byte) (*kvrpcpb.MvccGetByStartTsResponse, error) {
func (t *tikvHandlerTool) getMvccByStartTs(startTS uint64, startKey, endKey []byte) (*mvccKV, error) {
bo := tikv.NewBackoffer(context.Background(), 5000)
for {
curRegion, err := t.RegionCache.LocateKey(bo, startKey)
Expand Down Expand Up @@ -194,7 +210,8 @@ func (t *tikvHandlerTool) getMvccByStartTs(startTS uint64, startKey, endKey []by

key := data.GetKey()
if len(key) > 0 {
return data, nil
resp := &kvrpcpb.MvccGetByKeyResponse{Info: data.Info, RegionError: data.RegionError, Error: data.Error}
return &mvccKV{Key: strings.ToUpper(hex.EncodeToString(key)), Value: resp, RegionID: curRegion.Region.GetID()}, nil
}

if len(endKey) > 0 && curRegion.Contains(endKey) {
Expand Down Expand Up @@ -225,7 +242,14 @@ func (t *tikvHandlerTool) getMvccByIdxValue(idx table.Index, values url.Values,
return nil, errors.Trace(err)
}
data, err := t.GetMvccByEncodedKey(encodedKey)
return &mvccKV{strings.ToUpper(hex.EncodeToString(encodedKey)), data}, err
if err != nil {
return nil, err
}
regionID, err := t.getRegionIDByKey(encodedKey)
if err != nil {
return nil, err
}
return &mvccKV{strings.ToUpper(hex.EncodeToString(encodedKey)), regionID, data}, err
}

// formValue2DatumRow converts URL query string to a Datum Row.
Expand Down Expand Up @@ -284,12 +308,20 @@ func (t *tikvHandlerTool) schema() (infoschema.InfoSchema, error) {
return domain.GetDomain(session.(sessionctx.Context)).InfoSchema(), nil
}

func (t *tikvHandlerTool) handleMvccGetByHex(params map[string]string) (interface{}, error) {
func (t *tikvHandlerTool) handleMvccGetByHex(params map[string]string) (*mvccKV, error) {
encodedKey, err := hex.DecodeString(params[pHexKey])
if err != nil {
return nil, errors.Trace(err)
}
return t.GetMvccByEncodedKey(encodedKey)
data, err := t.GetMvccByEncodedKey(encodedKey)
if err != nil {
return nil, errors.Trace(err)
}
regionID, err := t.getRegionIDByKey(encodedKey)
if err != nil {
return nil, err
}
return &mvccKV{Key: strings.ToUpper(params[pHexKey]), Value: data, RegionID: regionID}, nil
}

// settingsHandler is the handler for list tidb server settings.
Expand Down