statistics: add log to show reason for partition table's auto analyze (…

…#47708) (#47747) close #47748
pingcap · Oct 18, 2023 · c53993b · c53993b
1 parent 2d036e4
commit c53993b
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/pkg/statistics/handle/autoanalyze/autoanalyze.go b/pkg/statistics/handle/autoanalyze/autoanalyze.go
@@ -331,8 +331,13 @@ func autoAnalyzePartitionTableInDynamicMode(sctx sessionctx.Context,
 		if partitionStatsTbl.Pseudo || partitionStatsTbl.RealtimeCount < AutoAnalyzeMinCnt {
 			continue
 		}
-		if needAnalyze, _ := NeedAnalyzeTable(partitionStatsTbl, 20*statsHandle.Lease(), ratio); needAnalyze {
+		if needAnalyze, reason := NeedAnalyzeTable(partitionStatsTbl, 20*statsHandle.Lease(), ratio); needAnalyze {
 			partitionNames = append(partitionNames, def.Name.O)
+			logutil.BgLogger().Info("need to auto analyze", zap.String("category", "stats"),
+				zap.String("database", db),
+				zap.String("table", tblInfo.Name.String()),
+				zap.String("partition", def.Name.O),
+				zap.String("reason", reason))
 			statistics.CheckAnalyzeVerOnTable(partitionStatsTbl, &tableStatsVer)
 		}
 	}
@@ -350,6 +355,7 @@ func autoAnalyzePartitionTableInDynamicMode(sctx sessionctx.Context,
 	}
 	if len(partitionNames) > 0 {
 		logutil.BgLogger().Info("start to auto analyze", zap.String("category", "stats"),
+			zap.String("database", db),
 			zap.String("table", tblInfo.Name.String()),
 			zap.Any("partitions", partitionNames),
 			zap.Int("analyze partition batch size", analyzePartitionBatchSize))
@@ -364,6 +370,7 @@ func autoAnalyzePartitionTableInDynamicMode(sctx sessionctx.Context,
 			sql := getSQL("analyze table %n.%n partition", "", end-start)
 			params := append([]interface{}{db, tblInfo.Name.O}, partitionNames[start:end]...)
 			logutil.BgLogger().Info("auto analyze triggered", zap.String("category", "stats"),
+				zap.String("database", db),
 				zap.String("table", tblInfo.Name.String()),
 				zap.Any("partitions", partitionNames[start:end]))
 			execAutoAnalyze(sctx, statsHandle, tableStatsVer, sql, params...)
@@ -394,6 +401,7 @@ func autoAnalyzePartitionTableInDynamicMode(sctx sessionctx.Context,
 				params := append([]interface{}{db, tblInfo.Name.O}, partitionNames[start:end]...)
 				params = append(params, idx.Name.O)
 				logutil.BgLogger().Info("auto analyze for unanalyzed", zap.String("category", "stats"),
+					zap.String("database", db),
 					zap.String("table", tblInfo.Name.String()),
 					zap.String("index", idx.Name.String()),
 					zap.Any("partitions", partitionNames[start:end]))