*: remove limiting process id for auto analyze

pkg/domain/domain.go

@@ -2270,7 +2270,7 @@ func (do *Domain) StatsHandle() *handle.Handle {
 
 // CreateStatsHandle is used only for test.
 func (do *Domain) CreateStatsHandle(ctx, initStatsCtx sessionctx.Context) error {
-	h, err := handle.NewHandle(ctx, initStatsCtx, do.statsLease, do.sysSessionPool, &do.sysProcesses, do.GetAutoAnalyzeProcID)
+	h, err := handle.NewHandle(ctx, initStatsCtx, do.statsLease, do.sysSessionPool, &do.sysProcesses, do.NextConnID, do.ReleaseConnID)
 	if err != nil {
 		return err
 	}
@@ -2347,7 +2347,7 @@ func (do *Domain) LoadAndUpdateStatsLoop(ctxs []sessionctx.Context, initStatsCtx
 // It should be called only once in BootstrapSession.
 func (do *Domain) UpdateTableStatsLoop(ctx, initStatsCtx sessionctx.Context) error {
 	ctx.GetSessionVars().InRestrictedSQL = true
-	statsHandle, err := handle.NewHandle(ctx, initStatsCtx, do.statsLease, do.sysSessionPool, &do.sysProcesses, do.GetAutoAnalyzeProcID)
+	statsHandle, err := handle.NewHandle(ctx, initStatsCtx, do.statsLease, do.sysSessionPool, &do.sysProcesses, do.NextConnID, do.ReleaseConnID)
 	if err != nil {
 		return err
 	}
@@ -2840,12 +2840,6 @@ func (do *Domain) ReleaseConnID(connID uint64) {
 	do.connIDAllocator.Release(connID)
 }
 
-// GetAutoAnalyzeProcID returns processID for auto analyze
-// TODO: support IDs for concurrent auto-analyze
-func (do *Domain) GetAutoAnalyzeProcID() uint64 {
-	return do.connIDAllocator.GetReservedConnID(reservedConnAnalyze)
-}
-
 const (
 	serverIDEtcdPath               = "/tidb/server_id"
 	refreshServerIDRetryCnt        = 3
@@ -2854,9 +2848,6 @@ const (
 	retrieveServerIDSessionTimeout = 10 * time.Second
 
 	acquire32BitsServerIDRetryCnt = 3
-
-	// reservedConnXXX must be within [0, globalconn.ReservedCount)
-	reservedConnAnalyze = 0
 )
 
 var (

pkg/executor/analyze.go

@@ -129,7 +129,9 @@ func (e *AnalyzeExec) Next(ctx context.Context, _ *chunk.Chunk) error {
 	}
 	failpoint.Inject("mockKillPendingAnalyzeJob", func() {
 		dom := domain.GetDomain(e.Ctx())
-		dom.SysProcTracker().KillSysProcess(dom.GetAutoAnalyzeProcID())
+		for _, id := range handleutil.GlobalAutoAnalyzeProcessList.All() {
+			dom.SysProcTracker().KillSysProcess(id)
+		}
 	})
 TASKLOOP:
 	for _, task := range tasks {
@@ -157,7 +159,9 @@ TASKLOOP:
 
 	failpoint.Inject("mockKillFinishedAnalyzeJob", func() {
 		dom := domain.GetDomain(e.Ctx())
-		dom.SysProcTracker().KillSysProcess(dom.GetAutoAnalyzeProcID())
+		for _, id := range handleutil.GlobalAutoAnalyzeProcessList.All() {
+			dom.SysProcTracker().KillSysProcess(id)
+		}
 	})
 	// If we enabled dynamic prune mode, then we need to generate global stats here for partition tables.
 	if needGlobalStats {

pkg/executor/analyze_col.go

@@ -32,6 +32,7 @@ import (
 	"github.com/pingcap/tidb/pkg/planner/core"
 	plannerutil "github.com/pingcap/tidb/pkg/planner/util"
 	"github.com/pingcap/tidb/pkg/statistics"
+	handleutil "github.com/pingcap/tidb/pkg/statistics/handle/util"
 	"github.com/pingcap/tidb/pkg/tablecodec"
 	"github.com/pingcap/tidb/pkg/types"
 	"github.com/pingcap/tidb/pkg/util"
@@ -176,7 +177,9 @@ func (e *AnalyzeColumnsExec) buildStats(ranges []*ranger.Range, needExtStats boo
 	for {
 		failpoint.Inject("mockKillRunningV1AnalyzeJob", func() {
 			dom := domain.GetDomain(e.ctx)
-			dom.SysProcTracker().KillSysProcess(dom.GetAutoAnalyzeProcID())
+			for _, id := range handleutil.GlobalAutoAnalyzeProcessList.All() {
+				dom.SysProcTracker().KillSysProcess(id)
+			}
 		})
 		if err := e.ctx.GetSessionVars().SQLKiller.HandleSignal(); err != nil {
 			return nil, nil, nil, nil, nil, err

pkg/executor/analyze_col_v2.go

@@ -30,6 +30,7 @@ import (
 	"github.com/pingcap/tidb/pkg/parser/mysql"
 	"github.com/pingcap/tidb/pkg/sessionctx"
 	"github.com/pingcap/tidb/pkg/statistics"
+	handleutil "github.com/pingcap/tidb/pkg/statistics/handle/util"
 	"github.com/pingcap/tidb/pkg/table"
 	"github.com/pingcap/tidb/pkg/tablecodec"
 	"github.com/pingcap/tidb/pkg/types"
@@ -854,7 +855,9 @@ func readDataAndSendTask(ctx sessionctx.Context, handler *tableResultHandler, me
 	for {
 		failpoint.Inject("mockKillRunningV2AnalyzeJob", func() {
 			dom := domain.GetDomain(ctx)
-			dom.SysProcTracker().KillSysProcess(dom.GetAutoAnalyzeProcID())
+			for _, id := range handleutil.GlobalAutoAnalyzeProcessList.All() {
+				dom.SysProcTracker().KillSysProcess(id)
+			}
 		})
 		if err := ctx.GetSessionVars().SQLKiller.HandleSignal(); err != nil {
 			return err

pkg/executor/analyze_idx.go

@@ -29,6 +29,7 @@ import (
 	"github.com/pingcap/tidb/pkg/parser/mysql"
 	"github.com/pingcap/tidb/pkg/sessionctx"
 	"github.com/pingcap/tidb/pkg/statistics"
+	handleutil "github.com/pingcap/tidb/pkg/statistics/handle/util"
 	"github.com/pingcap/tidb/pkg/types"
 	"github.com/pingcap/tidb/pkg/util/logutil"
 	"github.com/pingcap/tidb/pkg/util/ranger"
@@ -199,7 +200,9 @@ func (e *AnalyzeIndexExec) buildStatsFromResult(result distsql.SelectResult, nee
 	for {
 		failpoint.Inject("mockKillRunningAnalyzeIndexJob", func() {
 			dom := domain.GetDomain(e.ctx)
-			dom.SysProcTracker().KillSysProcess(dom.GetAutoAnalyzeProcID())
+			for _, id := range handleutil.GlobalAutoAnalyzeProcessList.All() {
+				dom.SysProcTracker().KillSysProcess(id)
+			}
 		})
 		if err := e.ctx.GetSessionVars().SQLKiller.HandleSignal(); err != nil {
 			return nil, nil, nil, nil, err

pkg/planner/core/BUILD.bazel

@@ -168,6 +168,7 @@ go_library(
         "//pkg/sessiontxn/staleread",
         "//pkg/statistics",
         "//pkg/statistics/asyncload",
+        "//pkg/statistics/handle/util",
         "//pkg/table",
         "//pkg/table/tables",
         "//pkg/table/temptable",

pkg/planner/core/planbuilder.go

@@ -49,6 +49,7 @@ import (
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
 	"github.com/pingcap/tidb/pkg/sessiontxn/staleread"
 	"github.com/pingcap/tidb/pkg/statistics"
+	handleutil "github.com/pingcap/tidb/pkg/statistics/handle/util"
 	"github.com/pingcap/tidb/pkg/table"
 	"github.com/pingcap/tidb/pkg/table/tables"
 	"github.com/pingcap/tidb/pkg/table/temptable"
@@ -3404,7 +3405,7 @@ func (b *PlanBuilder) buildSimple(ctx context.Context, node ast.StmtNode) (base.
 					b.visitInfo = appendDynamicVisitInfo(b.visitInfo, []string{"CONNECTION_ADMIN"}, false, err)
 					b.visitInfo = appendVisitInfoIsRestrictedUser(b.visitInfo, b.ctx, &auth.UserIdentity{Username: pi.User, Hostname: pi.Host}, "RESTRICTED_CONNECTION_ADMIN")
 				}
-			} else if raw.ConnectionID == domain.GetDomain(b.ctx).GetAutoAnalyzeProcID() {
+			} else if handleutil.GlobalAutoAnalyzeProcessList.Contains(raw.ConnectionID) {
 				// Only the users with SUPER or CONNECTION_ADMIN privilege can kill auto analyze.
 				err := plannererrors.ErrSpecificAccessDenied.GenWithStackByArgs("SUPER or CONNECTION_ADMIN")
 				b.visitInfo = appendDynamicVisitInfo(b.visitInfo, []string{"CONNECTION_ADMIN"}, false, err)

pkg/server/BUILD.bazel

@@ -71,6 +71,7 @@ go_library(
         "//pkg/sessionctx/variable",
         "//pkg/sessiontxn",
         "//pkg/statistics/handle",
+        "//pkg/statistics/handle/util",
         "//pkg/store",
         "//pkg/store/driver/error",
         "//pkg/store/helper",

pkg/server/server.go

@@ -69,6 +69,7 @@ import (
 	"github.com/pingcap/tidb/pkg/session"
 	"github.com/pingcap/tidb/pkg/session/txninfo"
 	"github.com/pingcap/tidb/pkg/sessionctx/variable"
+	statsutil "github.com/pingcap/tidb/pkg/statistics/handle/util"
 	"github.com/pingcap/tidb/pkg/util"
 	"github.com/pingcap/tidb/pkg/util/fastrand"
 	"github.com/pingcap/tidb/pkg/util/logutil"
@@ -1032,11 +1033,6 @@ func (s *Server) ServerID() uint64 {
 	return s.dom.ServerID()
 }
 
-// GetAutoAnalyzeProcID implements SessionManager interface.
-func (s *Server) GetAutoAnalyzeProcID() uint64 {
-	return s.dom.GetAutoAnalyzeProcID()
-}
-
 // StoreInternalSession implements SessionManager interface.
 // @param addr	The address of a session.session struct variable
 func (s *Server) StoreInternalSession(se any) {
@@ -1058,10 +1054,9 @@ func (s *Server) GetInternalSessionStartTSList() []uint64 {
 	s.sessionMapMutex.Lock()
 	defer s.sessionMapMutex.Unlock()
 	tsList := make([]uint64, 0, len(s.internalSessions))
-	analyzeProcID := s.GetAutoAnalyzeProcID()
 	for se := range s.internalSessions {
 		if ts, processInfoID := session.GetStartTSFromSession(se); ts != 0 {
-			if processInfoID == analyzeProcID {
+			if statsutil.GlobalAutoAnalyzeProcessList.Contains(processInfoID) {
 				continue
 			}
 			tsList = append(tsList, ts)

pkg/statistics/handle/autoanalyze/exec/BUILD.bazel

@@ -16,6 +16,7 @@ go_library(
         "//pkg/statistics/handle/types",
         "//pkg/statistics/handle/util",
         "//pkg/util/chunk",
+        "//pkg/util/logutil",
         "//pkg/util/sqlescape",
         "//pkg/util/sqlexec",
         "@com_github_pingcap_errors//:errors",

pkg/statistics/handle/autoanalyze/exec/exec.go

@@ -30,6 +30,7 @@ import (
 	statstypes "github.com/pingcap/tidb/pkg/statistics/handle/types"
 	statsutil "github.com/pingcap/tidb/pkg/statistics/handle/util"
 	"github.com/pingcap/tidb/pkg/util/chunk"
+	"github.com/pingcap/tidb/pkg/util/logutil"
 	"github.com/pingcap/tidb/pkg/util/sqlescape"
 	"github.com/pingcap/tidb/pkg/util/sqlexec"
 	"go.uber.org/zap"
@@ -81,13 +82,21 @@ func execAnalyzeStmt(
 ) ([]chunk.Row, []*ast.ResultField, error) {
 	pruneMode := sctx.GetSessionVars().PartitionPruneMode.Load()
 	analyzeSnapshot := sctx.GetSessionVars().EnableAnalyzeSnapshot
+	autoAnalyzeTracker := statsutil.NewAutoAnalyzeTracker(sysProcTracker.Track, sysProcTracker.UnTrack)
+	autoAnalyzeProcID := statsHandle.AutoAnalyzeProcID()
 	optFuncs := []sqlexec.OptionFuncAlias{
 		execOptionForAnalyze[statsVer],
 		sqlexec.GetAnalyzeSnapshotOption(analyzeSnapshot),
 		sqlexec.GetPartitionPruneModeOption(pruneMode),
 		sqlexec.ExecOptionUseCurSession,
-		sqlexec.ExecOptionWithSysProcTrack(statsHandle.AutoAnalyzeProcID(), sysProcTracker.Track, sysProcTracker.UnTrack),
+		sqlexec.ExecOptionWithSysProcTrack(autoAnalyzeProcID, autoAnalyzeTracker.Track, autoAnalyzeTracker.UnTrack),
 	}
+	defer func() {
+		if r := recover(); r != nil {
+			logutil.BgLogger().Warn("panic in execAnalyzeStmt", zap.Any("error", r), zap.Stack("stack"))
+		}
+		statsHandle.ReleaseAutoAnalyzeProcID(autoAnalyzeProcID)
+	}()
 	return statsutil.ExecWithOpts(sctx, optFuncs, sql, params...)
 }
 

pkg/statistics/handle/handle.go

@@ -113,6 +113,7 @@ func NewHandle(
 	pool util.SessionPool,
 	tracker sysproctrack.Tracker,
 	autoAnalyzeProcIDGetter func() uint64,
+	releaseAutoAnalyzeProcID func(uint64),
 ) (*Handle, error) {
 	handle := &Handle{
 		InitStatsDone:   make(chan struct{}),
@@ -128,7 +129,7 @@ func NewHandle(
 		return nil, err
 	}
 	handle.Pool = util.NewPool(pool)
-	handle.AutoAnalyzeProcIDGenerator = util.NewGenerator(autoAnalyzeProcIDGetter)
+	handle.AutoAnalyzeProcIDGenerator = util.NewGenerator(autoAnalyzeProcIDGetter, releaseAutoAnalyzeProcID)
 	handle.LeaseGetter = util.NewLeaseGetter(lease)
 	handle.StatsCache = statsCache
 	handle.StatsHistory = history.NewStatsHistory(handle)

pkg/statistics/handle/handletest/handle_test.go

@@ -118,7 +118,7 @@ func TestVersion(t *testing.T) {
 	tbl1, err := is.TableByName(context.Background(), model.NewCIStr("test"), model.NewCIStr("t1"))
 	require.NoError(t, err)
 	tableInfo1 := tbl1.Meta()
-	h, err := handle.NewHandle(testKit.Session(), testKit2.Session(), time.Millisecond, do.SysSessionPool(), do.SysProcTracker(), do.GetAutoAnalyzeProcID)
+	h, err := handle.NewHandle(testKit.Session(), testKit2.Session(), time.Millisecond, do.SysSessionPool(), do.SysProcTracker(), do.NextConnID, do.ReleaseConnID)
 	defer func() {
 		h.Close()
 	}()

pkg/statistics/handle/util/BUILD.bazel

@@ -19,6 +19,7 @@ go_library(
         "//pkg/parser/model",
         "//pkg/parser/terror",
         "//pkg/sessionctx",
+        "//pkg/sessionctx/sysproctrack",
         "//pkg/sessionctx/variable",
         "//pkg/statistics/handle/logutil",
         "//pkg/table",
@@ -32,6 +33,7 @@ go_library(
         "@com_github_pingcap_tipb//go-tipb",
         "@com_github_tiancaiamao_gp//:gp",
         "@com_github_tikv_client_go_v2//oracle",
+        "@org_golang_x_exp//maps",
         "@org_uber_go_atomic//:atomic",
         "@org_uber_go_zap//:zap",
     ],

pkg/statistics/handle/util/auto_analyze_proc_id_generator.go

@@ -14,27 +14,111 @@
 
 package util
 
+import (
+	"sync"
+
+	"github.com/pingcap/tidb/pkg/sessionctx/sysproctrack"
+	"golang.org/x/exp/maps"
+)
+
 // AutoAnalyzeProcIDGenerator is used to generate auto analyze proc ID.
 type AutoAnalyzeProcIDGenerator interface {
 	// AutoAnalyzeProcID generates an analyze ID.
 	AutoAnalyzeProcID() uint64
+	ReleaseAutoAnalyzeProcID(uint64)
 }
 
 var _ AutoAnalyzeProcIDGenerator = (*generator)(nil)
 
 type generator struct {
 	// autoAnalyzeProcIDGetter is used to generate auto analyze ID.
-	autoAnalyzeProcIDGetter func() uint64
+	autoAnalyzeProcIDGetter  func() uint64
+	releaseAutoAnalyzeProcID func(uint64)
 }
 
 // NewGenerator creates a new Generator.
-func NewGenerator(autoAnalyzeProcIDGetter func() uint64) AutoAnalyzeProcIDGenerator {
+func NewGenerator(autoAnalyzeProcIDGetter func() uint64, releaseAutoAnalyzeProcID func(uint64)) AutoAnalyzeProcIDGenerator {
 	return &generator{
-		autoAnalyzeProcIDGetter: autoAnalyzeProcIDGetter,
+		autoAnalyzeProcIDGetter:  autoAnalyzeProcIDGetter,
+		releaseAutoAnalyzeProcID: releaseAutoAnalyzeProcID,
 	}
 }
 
 // AutoAnalyzeProcID implements AutoAnalyzeProcIDGenerator.
 func (g *generator) AutoAnalyzeProcID() uint64 {
 	return g.autoAnalyzeProcIDGetter()
 }
+
+// ReleaseAutoAnalyzeProcID implements AutoAnalyzeProcIDGenerator.
+func (g *generator) ReleaseAutoAnalyzeProcID(id uint64) {
+	g.releaseAutoAnalyzeProcID(id)
+}
+
+// GlobalAutoAnalyzeProcessList is used to track the auto analyze process.
+var GlobalAutoAnalyzeProcessList = newGlobalAutoAnalyzeProcessList()
+
+type globalAutoAnalyzeProcessList struct {
+	processes map[uint64]struct{}
+	mu        sync.RWMutex
+}
+
+func newGlobalAutoAnalyzeProcessList() *globalAutoAnalyzeProcessList {
+	return &globalAutoAnalyzeProcessList{
+		processes: make(map[uint64]struct{}),
+	}
+}
+
+// Tracker is used to track the auto analyze process.
+func (g *globalAutoAnalyzeProcessList) Tracker(id uint64) {
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	g.processes[id] = struct{}{}
+}
+
+// Untracker is used to untrack the auto analyze process.
+func (g *globalAutoAnalyzeProcessList) Untracker(id uint64) {
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	delete(g.processes, id)
+}
+
+// AutoAnalyzeTracker is used to track the auto analyze process.
+type AutoAnalyzeTracker struct {
+	track   func(id uint64, ctx sysproctrack.TrackProc) error
+	untrack func(id uint64)
+}
+
+// All returns all the auto analyze process IDs.
+func (g *globalAutoAnalyzeProcessList) All() []uint64 {
+	g.mu.RLock()
+	defer g.mu.RUnlock()
+	return maps.Keys(g.processes)
+}
+
+// Contains checks whether the auto analyze process ID is in the list.
+func (g *globalAutoAnalyzeProcessList) Contains(id uint64) bool {
+	g.mu.RLock()
+	defer g.mu.RUnlock()
+	_, ok := g.processes[id]
+	return ok
+}
+
+// NewAutoAnalyzeTracker creates a new AutoAnalyzeTracker.
+func NewAutoAnalyzeTracker(track func(id uint64, ctx sysproctrack.TrackProc) error, untrack func(id uint64)) *AutoAnalyzeTracker {
+	return &AutoAnalyzeTracker{
+		track:   track,
+		untrack: untrack,
+	}
+}
+
+// Track is used to track the auto analyze process.
+func (t *AutoAnalyzeTracker) Track(id uint64, ctx sysproctrack.TrackProc) error {
+	GlobalAutoAnalyzeProcessList.Tracker(id)
+	return t.track(id, ctx)
+}
+
+// UnTrack is used to untrack the auto analyze process.
+func (t *AutoAnalyzeTracker) UnTrack(id uint64) {
+	GlobalAutoAnalyzeProcessList.Untracker(id)
+	t.untrack(id)
+}

pkg/testkit/mocksessionmanager.go

@@ -128,11 +128,6 @@ func (msm *MockSessionManager) ServerID() uint64 {
 	return msm.SerID
 }
 
-// GetAutoAnalyzeProcID implement SessionManager interface.
-func (msm *MockSessionManager) GetAutoAnalyzeProcID() uint64 {
-	return uint64(1)
-}
-
 // StoreInternalSession is to store internal session.
 func (msm *MockSessionManager) StoreInternalSession(s any) {
 	msm.mu.Lock()