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http_handler_test.go
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// Copyright 2018 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"bytes"
"crypto/tls"
"crypto/x509"
"crypto/x509/pkix"
"database/sql"
"encoding/base64"
"encoding/json"
"fmt"
"io"
"net"
"net/http"
"net/http/httputil"
"net/url"
"os"
"sort"
"strings"
"sync/atomic"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/failpoint"
"github.com/pingcap/kvproto/pkg/kvrpcpb"
"github.com/pingcap/log"
"github.com/pingcap/parser/model"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/ddl"
"github.com/pingcap/tidb/domain"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/meta"
"github.com/pingcap/tidb/session"
"github.com/pingcap/tidb/sessionctx"
"github.com/pingcap/tidb/sessionctx/binloginfo"
"github.com/pingcap/tidb/sessionctx/stmtctx"
"github.com/pingcap/tidb/sessionctx/variable"
"github.com/pingcap/tidb/store/helper"
"github.com/pingcap/tidb/store/mockstore"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/codec"
"github.com/pingcap/tidb/util/deadlockhistory"
"github.com/pingcap/tidb/util/rowcodec"
"github.com/pingcap/tidb/util/versioninfo"
"github.com/tikv/client-go/v2/tikv"
"go.uber.org/zap"
)
type basicHTTPHandlerTestSuite struct {
*testServerClient
server *Server
store kv.Storage
domain *domain.Domain
tidbdrv *TiDBDriver
}
type HTTPHandlerTestSuite struct {
*basicHTTPHandlerTestSuite
}
type HTTPHandlerTestSerialSuite struct {
*basicHTTPHandlerTestSuite
}
var _ = Suite(&HTTPHandlerTestSuite{&basicHTTPHandlerTestSuite{}})
var _ = SerialSuites(&HTTPHandlerTestSerialSuite{&basicHTTPHandlerTestSuite{}})
func (ts *basicHTTPHandlerTestSuite) SetUpSuite(c *C) {
ts.testServerClient = newTestServerClient()
}
func (ts *HTTPHandlerTestSuite) TestRegionIndexRange(c *C) {
sTableID := int64(3)
sIndex := int64(11)
eTableID := int64(9)
recordID := int64(133)
indexValues := []types.Datum{
types.NewIntDatum(100),
types.NewBytesDatum([]byte("foobar")),
types.NewFloat64Datum(-100.25),
}
expectIndexValues := make([]string, 0, len(indexValues))
for _, v := range indexValues {
str, err := v.ToString()
if err != nil {
str = fmt.Sprintf("%d-%v", v.Kind(), v.GetValue())
}
expectIndexValues = append(expectIndexValues, str)
}
encodedValue, err := codec.EncodeKey(&stmtctx.StatementContext{TimeZone: time.Local}, nil, indexValues...)
c.Assert(err, IsNil)
startKey := tablecodec.EncodeIndexSeekKey(sTableID, sIndex, encodedValue)
recordPrefix := tablecodec.GenTableRecordPrefix(eTableID)
endKey := tablecodec.EncodeRecordKey(recordPrefix, kv.IntHandle(recordID))
region := &tikv.KeyLocation{
Region: tikv.RegionVerID{},
StartKey: startKey,
EndKey: endKey,
}
r, err := helper.NewRegionFrameRange(region)
c.Assert(err, IsNil)
c.Assert(r.First.IndexID, Equals, sIndex)
c.Assert(r.First.IsRecord, IsFalse)
c.Assert(r.First.RecordID, Equals, int64(0))
c.Assert(r.First.IndexValues, DeepEquals, expectIndexValues)
c.Assert(r.Last.RecordID, Equals, recordID)
c.Assert(r.Last.IndexValues, IsNil)
testCases := []struct {
tableID int64
indexID int64
isCover bool
}{
{2, 0, false},
{3, 0, true},
{9, 0, true},
{10, 0, false},
{2, 10, false},
{3, 10, false},
{3, 11, true},
{3, 20, true},
{9, 10, true},
{10, 1, false},
}
for _, t := range testCases {
var f *helper.FrameItem
if t.indexID == 0 {
f = r.GetRecordFrame(t.tableID, "", "", false)
} else {
f = r.GetIndexFrame(t.tableID, t.indexID, "", "", "")
}
if t.isCover {
c.Assert(f, NotNil)
} else {
c.Assert(f, IsNil)
}
}
}
func (ts *HTTPHandlerTestSuite) TestRegionCommonHandleRange(c *C) {
sTableID := int64(3)
indexValues := []types.Datum{
types.NewIntDatum(100),
types.NewBytesDatum([]byte("foobar")),
types.NewFloat64Datum(-100.25),
}
expectIndexValues := make([]string, 0, len(indexValues))
for _, v := range indexValues {
str, err := v.ToString()
if err != nil {
str = fmt.Sprintf("%d-%v", v.Kind(), v.GetValue())
}
expectIndexValues = append(expectIndexValues, str)
}
encodedValue, err := codec.EncodeKey(&stmtctx.StatementContext{TimeZone: time.Local}, nil, indexValues...)
c.Assert(err, IsNil)
startKey := tablecodec.EncodeRowKey(sTableID, encodedValue)
region := &tikv.KeyLocation{
Region: tikv.RegionVerID{},
StartKey: startKey,
EndKey: nil,
}
r, err := helper.NewRegionFrameRange(region)
c.Assert(err, IsNil)
c.Assert(r.First.IsRecord, IsTrue)
c.Assert(r.First.RecordID, Equals, int64(0))
c.Assert(r.First.IndexValues, DeepEquals, expectIndexValues)
c.Assert(r.First.IndexName, Equals, "PRIMARY")
c.Assert(r.Last.RecordID, Equals, int64(0))
c.Assert(r.Last.IndexValues, IsNil)
}
func (ts *HTTPHandlerTestSuite) TestRegionIndexRangeWithEndNoLimit(c *C) {
sTableID := int64(15)
startKey := tablecodec.GenTableRecordPrefix(sTableID)
endKey := []byte("z_aaaaafdfd")
region := &tikv.KeyLocation{
Region: tikv.RegionVerID{},
StartKey: startKey,
EndKey: endKey,
}
r, err := helper.NewRegionFrameRange(region)
c.Assert(err, IsNil)
c.Assert(r.First.IsRecord, IsTrue)
c.Assert(r.Last.IsRecord, IsTrue)
c.Assert(r.GetRecordFrame(300, "", "", false), NotNil)
c.Assert(r.GetIndexFrame(200, 100, "", "", ""), NotNil)
}
func (ts *HTTPHandlerTestSuite) TestRegionIndexRangeWithStartNoLimit(c *C) {
eTableID := int64(9)
startKey := []byte("m_aaaaafdfd")
endKey := tablecodec.GenTableRecordPrefix(eTableID)
region := &tikv.KeyLocation{
Region: tikv.RegionVerID{},
StartKey: startKey,
EndKey: endKey,
}
r, err := helper.NewRegionFrameRange(region)
c.Assert(err, IsNil)
c.Assert(r.First.IsRecord, IsFalse)
c.Assert(r.Last.IsRecord, IsTrue)
c.Assert(r.GetRecordFrame(3, "", "", false), NotNil)
c.Assert(r.GetIndexFrame(8, 1, "", "", ""), NotNil)
}
func (ts *HTTPHandlerTestSuite) TestRegionsAPI(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
ts.prepareData(c)
resp, err := ts.fetchStatus("/tables/tidb/t/regions")
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusOK)
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
var data TableRegions
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(len(data.RecordRegions) > 0, IsTrue)
// list region
for _, region := range data.RecordRegions {
c.Assert(ts.regionContainsTable(c, region.ID, data.TableID), IsTrue)
}
}
func (ts *HTTPHandlerTestSuite) TestRegionsAPIForClusterIndex(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
ts.prepareData(c)
resp, err := ts.fetchStatus("/tables/tidb/t/regions")
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusOK)
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
var data TableRegions
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(len(data.RecordRegions) > 0, IsTrue)
// list region
for _, region := range data.RecordRegions {
resp, err := ts.fetchStatus(fmt.Sprintf("/regions/%d", region.ID))
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusOK)
decoder := json.NewDecoder(resp.Body)
var data RegionDetail
err = decoder.Decode(&data)
c.Assert(err, IsNil)
frameCnt := 0
for _, f := range data.Frames {
if f.DBName == "tidb" && f.TableName == "t" {
frameCnt++
}
}
// frameCnt = clustered primary key + secondary index(idx) = 2.
c.Assert(frameCnt, Equals, 2)
c.Assert(resp.Body.Close(), IsNil)
}
}
func (ts *HTTPHandlerTestSuite) TestRangesAPI(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
ts.prepareData(c)
resp, err := ts.fetchStatus("/tables/tidb/t/ranges")
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusOK)
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
var data TableRanges
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(data.TableName, Equals, "t")
c.Assert(len(data.Indices), Equals, 2)
_, ok := data.Indices["PRIMARY"]
c.Assert(ok, IsTrue)
_, ok = data.Indices["idx"]
c.Assert(ok, IsTrue)
}
func (ts *HTTPHandlerTestSuite) regionContainsTable(c *C, regionID uint64, tableID int64) bool {
resp, err := ts.fetchStatus(fmt.Sprintf("/regions/%d", regionID))
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusOK)
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
var data RegionDetail
err = decoder.Decode(&data)
c.Assert(err, IsNil)
for _, index := range data.Frames {
if index.TableID == tableID {
return true
}
}
return false
}
func (ts *HTTPHandlerTestSuite) TestListTableRegions(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
ts.prepareData(c)
// Test list table regions with error
resp, err := ts.fetchStatus("/tables/fdsfds/aaa/regions")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusBadRequest)
resp, err = ts.fetchStatus("/tables/tidb/pt/regions")
c.Assert(err, IsNil)
defer resp.Body.Close()
var data []*TableRegions
dec := json.NewDecoder(resp.Body)
err = dec.Decode(&data)
c.Assert(err, IsNil)
region := data[1]
_, err = ts.fetchStatus(fmt.Sprintf("/regions/%d", region.TableID))
c.Assert(err, IsNil)
}
func (ts *HTTPHandlerTestSuite) TestListTableRanges(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
ts.prepareData(c)
// Test list table regions with error
resp, err := ts.fetchStatus("/tables/fdsfds/aaa/ranges")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusBadRequest)
resp, err = ts.fetchStatus("/tables/tidb/pt/ranges")
c.Assert(err, IsNil)
defer resp.Body.Close()
var data []*TableRanges
dec := json.NewDecoder(resp.Body)
err = dec.Decode(&data)
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 3)
for i, partition := range data {
c.Assert(partition.TableName, Equals, fmt.Sprintf("p%d", i))
}
}
func (ts *HTTPHandlerTestSuite) TestGetRegionByIDWithError(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
resp, err := ts.fetchStatus("/regions/xxx")
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusBadRequest)
defer resp.Body.Close()
}
func (ts *HTTPHandlerTestSuite) TestBinlogRecover(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
binloginfo.EnableSkipBinlogFlag()
c.Assert(binloginfo.IsBinlogSkipped(), Equals, true)
resp, err := ts.fetchStatus("/binlog/recover")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
c.Assert(binloginfo.IsBinlogSkipped(), Equals, false)
// Invalid operation will use the default operation.
binloginfo.EnableSkipBinlogFlag()
c.Assert(binloginfo.IsBinlogSkipped(), Equals, true)
resp, err = ts.fetchStatus("/binlog/recover?op=abc")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
c.Assert(binloginfo.IsBinlogSkipped(), Equals, false)
binloginfo.EnableSkipBinlogFlag()
c.Assert(binloginfo.IsBinlogSkipped(), Equals, true)
resp, err = ts.fetchStatus("/binlog/recover?op=abc&seconds=1")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
c.Assert(binloginfo.IsBinlogSkipped(), Equals, false)
binloginfo.EnableSkipBinlogFlag()
c.Assert(binloginfo.IsBinlogSkipped(), Equals, true)
binloginfo.AddOneSkippedCommitter()
resp, err = ts.fetchStatus("/binlog/recover?op=abc&seconds=1")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusBadRequest)
c.Assert(binloginfo.IsBinlogSkipped(), Equals, false)
binloginfo.RemoveOneSkippedCommitter()
binloginfo.AddOneSkippedCommitter()
c.Assert(binloginfo.SkippedCommitterCount(), Equals, int32(1))
resp, err = ts.fetchStatus("/binlog/recover?op=reset")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
c.Assert(binloginfo.SkippedCommitterCount(), Equals, int32(0))
binloginfo.EnableSkipBinlogFlag()
resp, err = ts.fetchStatus("/binlog/recover?op=nowait")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
c.Assert(binloginfo.IsBinlogSkipped(), Equals, false)
// Only the first should work.
binloginfo.EnableSkipBinlogFlag()
resp, err = ts.fetchStatus("/binlog/recover?op=nowait&op=reset")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
c.Assert(binloginfo.IsBinlogSkipped(), Equals, false)
resp, err = ts.fetchStatus("/binlog/recover?op=status")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
}
func (ts *HTTPHandlerTestSuite) TestRegionsFromMeta(c *C) {
ts.startServer(c)
defer ts.stopServer(c)
resp, err := ts.fetchStatus("/regions/meta")
c.Assert(err, IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, Equals, http.StatusOK)
// Verify the resp body.
decoder := json.NewDecoder(resp.Body)
metas := make([]RegionMeta, 0)
err = decoder.Decode(&metas)
c.Assert(err, IsNil)
for _, meta := range metas {
c.Assert(meta.ID != 0, IsTrue)
}
// test no panic
c.Assert(failpoint.Enable("github.com/pingcap/tidb/server/errGetRegionByIDEmpty", `return(true)`), IsNil)
resp1, err := ts.fetchStatus("/regions/meta")
c.Assert(err, IsNil)
defer resp1.Body.Close()
c.Assert(failpoint.Disable("github.com/pingcap/tidb/server/errGetRegionByIDEmpty"), IsNil)
}
func (ts *basicHTTPHandlerTestSuite) startServer(c *C) {
var err error
ts.store, err = mockstore.NewMockStore()
c.Assert(err, IsNil)
ts.domain, err = session.BootstrapSession(ts.store)
c.Assert(err, IsNil)
ts.tidbdrv = NewTiDBDriver(ts.store)
cfg := newTestConfig()
cfg.Store = "tikv"
cfg.Port = 0
cfg.Status.StatusPort = 0
cfg.Status.ReportStatus = true
server, err := NewServer(cfg, ts.tidbdrv)
c.Assert(err, IsNil)
ts.port = getPortFromTCPAddr(server.listener.Addr())
ts.statusPort = getPortFromTCPAddr(server.statusListener.Addr())
ts.server = server
go func() {
err := server.Run()
c.Assert(err, IsNil)
}()
ts.waitUntilServerOnline()
}
func getPortFromTCPAddr(addr net.Addr) uint {
return uint(addr.(*net.TCPAddr).Port)
}
func (ts *basicHTTPHandlerTestSuite) stopServer(c *C) {
if ts.domain != nil {
ts.domain.Close()
}
if ts.store != nil {
ts.store.Close()
}
if ts.server != nil {
ts.server.Close()
}
}
func (ts *basicHTTPHandlerTestSuite) prepareData(c *C) {
db, err := sql.Open("mysql", ts.getDSN())
c.Assert(err, IsNil, Commentf("Error connecting"))
defer func() {
err := db.Close()
c.Assert(err, IsNil)
}()
dbt := &DBTest{c, db}
dbt.mustExec("create database tidb;")
dbt.mustExec("use tidb;")
dbt.mustExec("create table tidb.test (a int auto_increment primary key, b varchar(20));")
dbt.mustExec("insert tidb.test values (1, 1);")
txn1, err := dbt.db.Begin()
c.Assert(err, IsNil)
_, err = txn1.Exec("update tidb.test set b = b + 1 where a = 1;")
c.Assert(err, IsNil)
_, err = txn1.Exec("insert tidb.test values (2, 2);")
c.Assert(err, IsNil)
_, err = txn1.Exec("insert tidb.test (a) values (3);")
c.Assert(err, IsNil)
_, err = txn1.Exec("insert tidb.test values (4, '');")
c.Assert(err, IsNil)
err = txn1.Commit()
c.Assert(err, IsNil)
dbt.mustExec("alter table tidb.test add index idx1 (a, b);")
dbt.mustExec("alter table tidb.test add unique index idx2 (a, b);")
dbt.mustExec(`create table tidb.pt (a int primary key, b varchar(20), key idx(a, b))
partition by range (a)
(partition p0 values less than (256),
partition p1 values less than (512),
partition p2 values less than (1024))`)
txn2, err := dbt.db.Begin()
c.Assert(err, IsNil)
_, err = txn2.Exec("insert into tidb.pt values (42, '123')")
c.Assert(err, IsNil)
_, err = txn2.Exec("insert into tidb.pt values (256, 'b')")
c.Assert(err, IsNil)
_, err = txn2.Exec("insert into tidb.pt values (666, 'def')")
c.Assert(err, IsNil)
err = txn2.Commit()
c.Assert(err, IsNil)
dbt.mustExec("drop table if exists t")
dbt.mustExec("create table t (a double, b varchar(20), c int, primary key(a,b) clustered, key idx(c))")
dbt.mustExec("insert into t values(1.1,'111',1),(2.2,'222',2)")
}
func decodeKeyMvcc(closer io.ReadCloser, c *C, valid bool) {
decoder := json.NewDecoder(closer)
var data helper.MvccKV
err := decoder.Decode(&data)
c.Assert(err, IsNil)
if valid {
c.Assert(data.Value.Info, NotNil)
c.Assert(len(data.Value.Info.Writes), Greater, 0)
} else {
c.Assert(data.Value.Info.Lock, IsNil)
c.Assert(data.Value.Info.Writes, IsNil)
c.Assert(data.Value.Info.Values, IsNil)
}
}
func (ts *HTTPHandlerTestSuite) TestGetTableMVCC(c *C) {
ts.startServer(c)
ts.prepareData(c)
defer ts.stopServer(c)
resp, err := ts.fetchStatus("/mvcc/key/tidb/test/1")
c.Assert(err, IsNil)
decoder := json.NewDecoder(resp.Body)
var data helper.MvccKV
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(data.Value, NotNil)
info := data.Value.Info
c.Assert(info, NotNil)
c.Assert(len(info.Writes), Greater, 0)
// TODO: Unistore will not return Op_Lock.
// Use this workaround to support two backend, we can remove this hack after deprecated mocktikv.
var startTs uint64
for _, w := range info.Writes {
if w.Type == kvrpcpb.Op_Lock {
continue
}
startTs = w.StartTs
break
}
resp, err = ts.fetchStatus(fmt.Sprintf("/mvcc/txn/%d/tidb/test", startTs))
c.Assert(err, IsNil)
var p2 helper.MvccKV
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&p2)
c.Assert(err, IsNil)
for i, expect := range info.Values {
v2 := p2.Value.Info.Values[i].Value
c.Assert(v2, BytesEquals, expect.Value)
}
hexKey := p2.Key
resp, err = ts.fetchStatus("/mvcc/hex/" + hexKey)
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
var data2 helper.MvccKV
err = decoder.Decode(&data2)
c.Assert(err, IsNil)
c.Assert(data2, DeepEquals, data)
resp, err = ts.fetchStatus("/mvcc/key/tidb/test/1?decode=true")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
var data3 map[string]interface{}
err = decoder.Decode(&data3)
c.Assert(err, IsNil)
c.Assert(data3["key"], NotNil)
c.Assert(data3["info"], NotNil)
c.Assert(data3["data"], NotNil)
c.Assert(data3["decode_error"], IsNil)
resp, err = ts.fetchStatus("/mvcc/key/tidb/pt(p0)/42?decode=true")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
var data4 map[string]interface{}
err = decoder.Decode(&data4)
c.Assert(err, IsNil)
c.Assert(data4["key"], NotNil)
c.Assert(data4["info"], NotNil)
c.Assert(data4["data"], NotNil)
c.Assert(data4["decode_error"], IsNil)
c.Assert(resp.Body.Close(), IsNil)
resp, err = ts.fetchStatus("/mvcc/key/tidb/t/42")
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusBadRequest)
resp, err = ts.fetchStatus("/mvcc/key/tidb/t?a=1.1")
c.Assert(err, IsNil)
c.Assert(resp.StatusCode, Equals, http.StatusBadRequest)
resp, err = ts.fetchStatus("/mvcc/key/tidb/t?a=1.1&b=111&decode=1")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
var data5 map[string]interface{}
err = decoder.Decode(&data5)
c.Assert(err, IsNil)
c.Assert(data4["key"], NotNil)
c.Assert(data4["info"], NotNil)
c.Assert(data4["data"], NotNil)
c.Assert(data4["decode_error"], IsNil)
c.Assert(resp.Body.Close(), IsNil)
}
func (ts *HTTPHandlerTestSuite) TestGetMVCCNotFound(c *C) {
ts.startServer(c)
ts.prepareData(c)
defer ts.stopServer(c)
resp, err := ts.fetchStatus("/mvcc/key/tidb/test/1234")
c.Assert(err, IsNil)
decoder := json.NewDecoder(resp.Body)
var data helper.MvccKV
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(data.Value.Info.Lock, IsNil)
c.Assert(data.Value.Info.Writes, IsNil)
c.Assert(data.Value.Info.Values, IsNil)
}
func (ts *HTTPHandlerTestSuite) TestTiFlashReplica(c *C) {
ts.startServer(c)
ts.prepareData(c)
defer ts.stopServer(c)
db, err := sql.Open("mysql", ts.getDSN())
c.Assert(err, IsNil, Commentf("Error connecting"))
defer func() {
err := db.Close()
c.Assert(err, IsNil)
}()
dbt := &DBTest{c, db}
defer func(originGC bool) {
if originGC {
ddl.EmulatorGCEnable()
} else {
ddl.EmulatorGCDisable()
}
}(ddl.IsEmulatorGCEnable())
// Disable emulator GC.
// Otherwise emulator GC will delete table record as soon as possible after execute drop table DDL.
ddl.EmulatorGCDisable()
gcTimeFormat := "20060102-15:04:05 -0700 MST"
timeBeforeDrop := time.Now().Add(0 - 48*60*60*time.Second).Format(gcTimeFormat)
safePointSQL := `INSERT HIGH_PRIORITY INTO mysql.tidb VALUES ('tikv_gc_safe_point', '%[1]s', ''),('tikv_gc_enable','true','')
ON DUPLICATE KEY
UPDATE variable_value = '%[1]s'`
// Set GC safe point and enable GC.
dbt.mustExec(fmt.Sprintf(safePointSQL, timeBeforeDrop))
resp, err := ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder := json.NewDecoder(resp.Body)
var data []tableFlashReplicaInfo
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 0)
c.Assert(failpoint.Enable("github.com/pingcap/tidb/infoschema/mockTiFlashStoreCount", `return(true)`), IsNil)
defer func() {
err = failpoint.Disable("github.com/pingcap/tidb/infoschema/mockTiFlashStoreCount")
c.Assert(err, IsNil)
}()
dbt.mustExec("use tidb")
dbt.mustExec("alter table test set tiflash replica 2 location labels 'a','b';")
resp, err = ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&data)
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 1)
c.Assert(data[0].ReplicaCount, Equals, uint64(2))
c.Assert(strings.Join(data[0].LocationLabels, ","), Equals, "a,b")
c.Assert(data[0].Available, Equals, false)
resp, err = ts.postStatus("/tiflash/replica", "application/json", bytes.NewBuffer([]byte(`{"id":84,"region_count":3,"flash_region_count":3}`)))
c.Assert(err, IsNil)
c.Assert(resp, NotNil)
body, err := io.ReadAll(resp.Body)
c.Assert(err, IsNil)
c.Assert(string(body), Equals, "[schema:1146]Table which ID = 84 does not exist.")
t, err := ts.domain.InfoSchema().TableByName(model.NewCIStr("tidb"), model.NewCIStr("test"))
c.Assert(err, IsNil)
req := fmt.Sprintf(`{"id":%d,"region_count":3,"flash_region_count":3}`, t.Meta().ID)
resp, err = ts.postStatus("/tiflash/replica", "application/json", bytes.NewBuffer([]byte(req)))
c.Assert(err, IsNil)
c.Assert(resp, NotNil)
body, err = io.ReadAll(resp.Body)
c.Assert(err, IsNil)
c.Assert(string(body), Equals, "")
resp, err = ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&data)
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 1)
c.Assert(data[0].ReplicaCount, Equals, uint64(2))
c.Assert(strings.Join(data[0].LocationLabels, ","), Equals, "a,b")
c.Assert(data[0].Available, Equals, true) // The status should be true now.
// Should not take effect.
dbt.mustExec("alter table test set tiflash replica 2 location labels 'a','b';")
checkFunc := func() {
resp, err = ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&data)
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 1)
c.Assert(data[0].ReplicaCount, Equals, uint64(2))
c.Assert(strings.Join(data[0].LocationLabels, ","), Equals, "a,b")
c.Assert(data[0].Available, Equals, true) // The status should be true now.
}
// Test for get dropped table tiflash replica info.
dbt.mustExec("drop table test")
checkFunc()
// Test unique table id replica info.
dbt.mustExec("flashback table test")
checkFunc()
dbt.mustExec("drop table test")
checkFunc()
dbt.mustExec("flashback table test")
checkFunc()
// Test for partition table.
dbt.mustExec("alter table pt set tiflash replica 2 location labels 'a','b';")
dbt.mustExec("alter table test set tiflash replica 0;")
resp, err = ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&data)
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 3)
c.Assert(data[0].ReplicaCount, Equals, uint64(2))
c.Assert(strings.Join(data[0].LocationLabels, ","), Equals, "a,b")
c.Assert(data[0].Available, Equals, false)
pid0 := data[0].ID
pid1 := data[1].ID
pid2 := data[2].ID
// Mock for partition 1 replica was available.
req = fmt.Sprintf(`{"id":%d,"region_count":3,"flash_region_count":3}`, pid1)
resp, err = ts.postStatus("/tiflash/replica", "application/json", bytes.NewBuffer([]byte(req)))
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
resp, err = ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&data)
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 3)
c.Assert(data[0].Available, Equals, false)
c.Assert(data[1].Available, Equals, true)
c.Assert(data[2].Available, Equals, false)
// Mock for partition 0,2 replica was available.
req = fmt.Sprintf(`{"id":%d,"region_count":3,"flash_region_count":3}`, pid0)
resp, err = ts.postStatus("/tiflash/replica", "application/json", bytes.NewBuffer([]byte(req)))
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
req = fmt.Sprintf(`{"id":%d,"region_count":3,"flash_region_count":3}`, pid2)
resp, err = ts.postStatus("/tiflash/replica", "application/json", bytes.NewBuffer([]byte(req)))
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
checkFunc = func() {
resp, err = ts.fetchStatus("/tiflash/replica")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
err = decoder.Decode(&data)
c.Assert(err, IsNil)
err = resp.Body.Close()
c.Assert(err, IsNil)
c.Assert(len(data), Equals, 3)
c.Assert(data[0].Available, Equals, true)
c.Assert(data[1].Available, Equals, true)
c.Assert(data[2].Available, Equals, true)
}
// Test for get truncated table tiflash replica info.
dbt.mustExec("truncate table pt")
dbt.mustExec("alter table pt set tiflash replica 0;")
checkFunc()
}
func (ts *HTTPHandlerTestSuite) TestDecodeColumnValue(c *C) {
ts.startServer(c)
ts.prepareData(c)
defer ts.stopServer(c)
// column is a structure used for test
type column struct {
id int64
tp *types.FieldType
}
// Backfill columns.
c1 := &column{id: 1, tp: types.NewFieldType(mysql.TypeLonglong)}
c2 := &column{id: 2, tp: types.NewFieldType(mysql.TypeVarchar)}
c3 := &column{id: 3, tp: types.NewFieldType(mysql.TypeNewDecimal)}
c4 := &column{id: 4, tp: types.NewFieldType(mysql.TypeTimestamp)}
cols := []*column{c1, c2, c3, c4}
row := make([]types.Datum, len(cols))
row[0] = types.NewIntDatum(100)
row[1] = types.NewBytesDatum([]byte("abc"))
row[2] = types.NewDecimalDatum(types.NewDecFromInt(1))
row[3] = types.NewTimeDatum(types.NewTime(types.FromGoTime(time.Now()), mysql.TypeTimestamp, 6))
// Encode the row.
colIDs := make([]int64, 0, 3)
for _, col := range cols {
colIDs = append(colIDs, col.id)
}
rd := rowcodec.Encoder{Enable: true}
sc := &stmtctx.StatementContext{TimeZone: time.UTC}
bs, err := tablecodec.EncodeRow(sc, row, colIDs, nil, nil, &rd)
c.Assert(err, IsNil)
c.Assert(bs, NotNil)
bin := base64.StdEncoding.EncodeToString(bs)
unitTest := func(col *column) {
path := fmt.Sprintf("/tables/%d/%v/%d/%d?rowBin=%s", col.id, col.tp.Tp, col.tp.Flag, col.tp.Flen, bin)
resp, err := ts.fetchStatus(path)
c.Assert(err, IsNil, Commentf("url:%s", ts.statusURL(path)))
decoder := json.NewDecoder(resp.Body)
var data interface{}
err = decoder.Decode(&data)
c.Assert(err, IsNil, Commentf("url:%v\ndata%v", ts.statusURL(path), data))
colVal, err := types.DatumsToString([]types.Datum{row[col.id-1]}, false)
c.Assert(err, IsNil)
c.Assert(data, Equals, colVal, Commentf("url:%v", ts.statusURL(path)))
}
for _, col := range cols {
unitTest(col)
}
// Test bin has `+`.
// 2018-03-08 16:01:00.315313
bin = "CAIIyAEIBAIGYWJjCAYGAQCBCAgJsZ+TgISg1M8Z"
row[3] = types.NewTimeDatum(types.NewTime(types.FromGoTime(time.Date(2018, 3, 8, 16, 1, 0, 315313000, time.UTC)), mysql.TypeTimestamp, 6))
unitTest(cols[3])
// Test bin has `/`.
// 2018-03-08 02:44:46.409199
bin = "CAIIyAEIBAIGYWJjCAYGAQCBCAgJ7/yY8LKF1M8Z"
row[3] = types.NewTimeDatum(types.NewTime(types.FromGoTime(time.Date(2018, 3, 8, 2, 44, 46, 409199000, time.UTC)), mysql.TypeTimestamp, 6))
unitTest(cols[3])
}
func (ts *HTTPHandlerTestSuite) TestGetIndexMVCC(c *C) {
ts.startServer(c)
ts.prepareData(c)
defer ts.stopServer(c)
// tests for normal index key
resp, err := ts.fetchStatus("/mvcc/index/tidb/test/idx1/1?a=1&b=2")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx2/1?a=1&b=2")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
// tests for index key which includes null
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx1/3?a=3&b")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx2/3?a=3&b")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
// tests for index key which includes empty string
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx1/4?a=4&b=")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx2/3?a=4&b=")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
resp, err = ts.fetchStatus("/mvcc/index/tidb/t/idx?a=1.1&b=111&c=1")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, true)
// tests for wrong key
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx1/5?a=5&b=1")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, false)
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx2/5?a=5&b=1")
c.Assert(err, IsNil)
decodeKeyMvcc(resp.Body, c, false)
// tests for missing column value
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx1/1?a=1")
c.Assert(err, IsNil)
decoder := json.NewDecoder(resp.Body)
var data1 helper.MvccKV
err = decoder.Decode(&data1)
c.Assert(err, NotNil)
resp, err = ts.fetchStatus("/mvcc/index/tidb/test/idx2/1?a=1")
c.Assert(err, IsNil)
decoder = json.NewDecoder(resp.Body)
var data2 helper.MvccKV
err = decoder.Decode(&data2)
c.Assert(err, NotNil)
resp, err = ts.fetchStatus("/mvcc/index/tidb/pt(p2)/idx/666?a=666&b=def")
c.Assert(err, IsNil)
defer resp.Body.Close()
decodeKeyMvcc(resp.Body, c, true)
}
func (ts *HTTPHandlerTestSuite) TestGetSettings(c *C) {
ts.startServer(c)
ts.prepareData(c)
defer ts.stopServer(c)
resp, err := ts.fetchStatus("/settings")
c.Assert(err, IsNil)
decoder := json.NewDecoder(resp.Body)