*: track analyze memory usage separately with quota (pingcap#33054)

ref pingcap#29938, close pingcap#33065

config/const.go

@@ -0,0 +1,21 @@
+// Copyright 2022 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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+// DefRowsForSampleRate is default sample rows used to calculate samplerate.
+const DefRowsForSampleRate = 110000
+
+// TrackMemWhenExceeds is the threshold when memory usage needs to be tracked.
+const TrackMemWhenExceeds = 104857600 // 100MB

executor/adapter.go

@@ -490,10 +490,10 @@ func (a *ExecStmt) handleNoDelay(ctx context.Context, e Executor, isPessimistic
 		// `rs.Close` in `handleStmt`
 		if sc != nil && rs == nil {
 			if sc.MemTracker != nil {
-				sc.MemTracker.DetachFromGlobalTracker()
+				sc.MemTracker.Detach()
 			}
 			if sc.DiskTracker != nil {
-				sc.DiskTracker.DetachFromGlobalTracker()
+				sc.DiskTracker.Detach()
 			}
 		}
 	}()
@@ -1009,10 +1009,10 @@ func (a *ExecStmt) CloseRecordSet(txnStartTS uint64, lastErr error) {
 	// Detach the Memory and disk tracker for the previous stmtCtx from GlobalMemoryUsageTracker and GlobalDiskUsageTracker
 	if stmtCtx := a.Ctx.GetSessionVars().StmtCtx; stmtCtx != nil {
 		if stmtCtx.DiskTracker != nil {
-			stmtCtx.DiskTracker.DetachFromGlobalTracker()
+			stmtCtx.DiskTracker.Detach()
 		}
 		if stmtCtx.MemTracker != nil {
-			stmtCtx.MemTracker.DetachFromGlobalTracker()
+			stmtCtx.MemTracker.Detach()
 		}
 	}
 }