Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

statistics: check Killed in the GenJSONTableFromStats (#47778) #47824

Merged
merged 3 commits into from
Nov 6, 2023
Merged

statistics: check Killed in the GenJSONTableFromStats (#47778) #47824

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
ade54b5
This is an automated cherry-pick of #47778
hawkingrei Oct 20, 2023
884a144
update
hawkingrei Nov 6, 2023
ed4be15
update
hawkingrei Nov 6, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
39 changes: 35 additions & 4 deletions statistics/handle/dump.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ import (
"compress/gzip"
"encoding/json"
"io"
"sync/atomic"
"time"

"github.com/pingcap/errors"
Expand All @@ -32,6 +33,7 @@ import (
handle_metrics "github.com/pingcap/tidb/statistics/handle/metrics"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/logutil"
"github.com/pingcap/tidb/util/memory"
"github.com/pingcap/tidb/util/sqlexec"
"github.com/pingcap/tipb/go-tipb"
"go.uber.org/zap"
Expand Down Expand Up @@ -106,6 +108,20 @@ type jsonColumn struct {
StatsVer *int64 `json:"stats_ver"`
}

// TotalMemoryUsage returns the total memory usage of this column.
func (col *jsonColumn) TotalMemoryUsage() (size int64) {
if col.Histogram != nil {
size += int64(col.Histogram.Size())
}
if col.CMSketch != nil {
size += int64(col.CMSketch.Size())
}
if col.FMSketch != nil {
size += int64(col.FMSketch.Size())
}
return size
}

func dumpJSONCol(hist *statistics.Histogram, CMSketch *statistics.CMSketch, topn *statistics.TopN, FMSketch *statistics.FMSketch, statsVer *int64) *jsonColumn {
jsonCol := &jsonColumn{
Histogram: statistics.HistogramToProto(hist),
Expand Down Expand Up @@ -218,7 +234,10 @@ func (h *Handle) DumpStatsToJSONBySnapshot(dbName string, tableInfo *model.Table
}

// GenJSONTableFromStats generate jsonTable from tableInfo and stats
func GenJSONTableFromStats(dbName string, tableInfo *model.TableInfo, tbl *statistics.Table) (*JSONTable, error) {
func GenJSONTableFromStats(sctx sessionctx.Context, dbName string, tableInfo *model.TableInfo, tbl *statistics.Table) (*JSONTable, error) {
tracker := memory.NewTracker(memory.LabelForAnalyzeMemory, -1)
tracker.AttachTo(sctx.GetSessionVars().MemTracker)
defer tracker.Detach()
jsonTbl := &JSONTable{
DatabaseName: dbName,
TableName: tableInfo.Name.L,
Expand All @@ -234,11 +253,21 @@ func GenJSONTableFromStats(dbName string, tableInfo *model.TableInfo, tbl *stati
if err != nil {
return nil, errors.Trace(err)
}
jsonTbl.Columns[col.Info.Name.L] = dumpJSONCol(hist, col.CMSketch, col.TopN, col.FMSketch, &col.StatsVer)
proto := dumpJSONCol(hist, col.CMSketch, col.TopN, col.FMSketch, &col.StatsVer)
tracker.Consume(proto.TotalMemoryUsage())
if atomic.LoadUint32(&sctx.GetSessionVars().Killed) == 1 {
return nil, errors.Trace(statistics.ErrQueryInterrupted)
}
jsonTbl.Columns[col.Info.Name.L] = proto
}

for _, idx := range tbl.Indices {
jsonTbl.Indices[idx.Info.Name.L] = dumpJSONCol(&idx.Histogram, idx.CMSketch, idx.TopN, nil, &idx.StatsVer)
proto := dumpJSONCol(&idx.Histogram, idx.CMSketch, idx.TopN, nil, &idx.StatsVer)
tracker.Consume(proto.TotalMemoryUsage())
if atomic.LoadUint32(&sctx.GetSessionVars().Killed) == 1 {
return nil, errors.Trace(statistics.ErrQueryInterrupted)
}
jsonTbl.Indices[idx.Info.Name.L] = proto
}
jsonTbl.ExtStats = dumpJSONExtendedStats(tbl.ExtendedStats)
return jsonTbl, nil
Expand Down Expand Up @@ -328,7 +357,9 @@ func (h *Handle) tableStatsToJSON(dbName string, tableInfo *model.TableInfo, phy
if err != nil {
return nil, err
}
jsonTbl, err := GenJSONTableFromStats(dbName, tableInfo, tbl)
h.mu.Lock()
defer h.mu.Unlock()
jsonTbl, err := GenJSONTableFromStats(h.mu.ctx, dbName, tableInfo, tbl)
if err != nil {
return nil, err
}
Expand Down