force flush controlled in state_sizer

core/blockchain.go

@@ -536,7 +536,6 @@ func NewBlockChain(db ethdb.Database, genesis *Genesis, engine consensus.Engine,
 		stateSizer, err := state.NewSizeTracker(bc.db, bc.triedb)
 		if err == nil {
 			bc.stateSizer = stateSizer
-			triedb.EnableForceFlush()
 		} else {
 			log.Info("Failed to setup size tracker", "err", err)
 		}

core/state/state_sizer.go

@@ -360,6 +360,8 @@ wait:
 		done     chan buildResult
 	)
 
+	t.triedb.SetForceFlush(true)
+
 	for {
 		select {
 		case u := <-t.updateCh:
@@ -384,6 +386,8 @@ wait:
 			log.Info("Measuring persistent state size", "root", root.Hex())
 
 		case result := <-done:
+			t.triedb.SetForceFlush(false)
+
 			if result.err != nil {
 				return nil, result.err
 			}

triedb/database.go

@@ -385,11 +385,11 @@ func (db *Database) SnapshotCompleted() bool {
 	return pdb.SnapshotCompleted()
 }
 
-// EnableForceFlush enables the pathdb to flush any pending changes to disk immediately,
-// regardless of the buffer size threshold. This can be used to accelerate
+// SetForceFlush enables or disables the pathdb to flush any pending changes to disk
+// immediately, regardless of the buffer size threshold. This can be used to accelerate
 // state sizer initialization by making buffered state changes visible on disk.
-func (db *Database) EnableForceFlush() {
+func (db *Database) SetForceFlush(enabled bool) {
 	if pdb, ok := db.backend.(*pathdb.Database); ok {
-		pdb.EnableForceFlush()
+		pdb.SetForceFlush(enabled)
 	}
 }

triedb/pathdb/database.go

@@ -361,17 +361,13 @@ func (db *Database) Commit(root common.Hash, report bool) error {
 	return db.tree.cap(root, 0)
 }
 
-// EnableForceFlush enables force flushing for the next state update.
-// This will cause the next Update() call to flush the disk buffer immediately,
-// regardless of the buffer threshold, while preserving the 128 diff layers in memory.
-func (db *Database) EnableForceFlush() {
+// SetForceFlush enables or disables force flushing for the next state update.
+func (db *Database) SetForceFlush(enabled bool) {
 	db.lock.Lock()
 	defer db.lock.Unlock()
 
-	if !db.forceFlush {
-		log.Info("Enabling force flush for next pathdb update")
-		db.forceFlush = true
-	}
+	db.forceFlush = enabled
+	log.Info("Set triedb force flush for next pathdb update", "enabled", enabled)
 }
 
 // Disable deactivates the database and invalidates all available state layers