feat: improve zip processing speed closes #71

config.toml

@@ -1,2 +1,5 @@
 PORT=5002
+
 HOSTNAME="https://testing.andr3h3nriqu3s.com"
+
+NUMBER_OF_WORKERS=20

logic/models/data.go

@@ -28,13 +28,95 @@ func InsertIfNotPresent(ss []string, s string) []string {
 	return ss
 }
 
+/*
+This function will process a single file from the uploaded zip file
+*/
+func fileProcessor(
+    c *Context,
+    model *BaseModel,
+    reader *zip.ReadCloser,
+    ids map[string]string,
+    base_path string,
+    index int,
+    file_chan chan *zip.File,
+    back_channel chan int,
+) {
+   defer func() {
+        if r := recover(); r != nil {
+            c.Logger.Error("Recovered in file processor", "processor id", index, "due to", r)
+        }
+    }()
+
+	for file := range file_chan {
+        c.Logger.Debug("Processing File", "file", file.Name)
+		data, err := reader.Open(file.Name)
+		if err != nil {
+            c.Logger.Error("Could not open file in zip %s\n", "file name", file.Name, "err", err)
+            back_channel <- index
+			continue
+		}
+		defer data.Close()
+		file_data, err := io.ReadAll(data)
+		if err != nil {
+            c.Logger.Error("Could not open file in zip %s\n", "file name", file.Name, "err", err)
+            back_channel <- index
+			continue
+		}
+
+		// TODO check if the file is a valid photo that matched the defined photo on the database
+
+		parts := strings.Split(file.Name, "/")
+
+		mode := model_classes.DATA_POINT_MODE_TRAINING
+		if parts[0] == "testing" {
+			mode = model_classes.DATA_POINT_MODE_TESTING
+		}
+
+		data_point_id, err := model_classes.AddDataPoint(c.Db, ids[parts[1]], "id://", mode)
+		if err != nil {
+            c.Logger.Error("Failed to add datapoint", "model", model.Id, "file name", file.Name, "err", err)
+            back_channel <- -index - 1
+			return
+		}
+
+		file_path := path.Join(base_path, data_point_id+"."+model.Format)
+		f, err := os.Create(file_path)
+		if err != nil {
+            c.Logger.Error("Failed to add datapoint", "model", model.Id, "file name", file.Name, "err", err)
+            back_channel <- -index - 1
+			return
+		}
+		defer f.Close()
+		f.Write(file_data)
+
+		if !testImgForModel(c, model, file_path) {
+			c.Logger.Errorf("Image did not have valid format for model %s (in zip: %s)!", file_path, file.Name)
+			c.Logger.Warn("Not failling updating data point to status -1")
+			message := "Image did not have valid format for the model"
+			if err = model_classes.UpdateDataPointStatus(c.Db, data_point_id, -1, &message); err != nil {
+                c.Logger.Error("Failed to update data point", "model", model.Id, "file name", file.Name, "err", err)
+                back_channel <- -index - 1
+                return
+			}
+		}
+
+        back_channel <- index
+	}
+}
+
 func processZipFile(c *Context, model *BaseModel) {
+
+
+	var err error
+
+	failed := func(msg string) {
+		c.Logger.Error(msg, "err", err)
+		ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
+	}
+
 	reader, err := zip.OpenReader(path.Join("savedData", model.Id, "base_data.zip"))
 	if err != nil {
-		// TODO add msg to error
+		failed("Failed to proccess zip file failed to open reader")
-		ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
-		fmt.Printf("Faield to proccess zip file failed to open reader\n")
-		fmt.Println(err)
 		return
 	}
 	defer reader.Close()
@@ -51,8 +133,7 @@ func processZipFile(c *Context, model *BaseModel) {
 		}
 
 		if paths[0] != "training" && paths[0] != "testing" {
-			fmt.Printf("Invalid file '%s' TODO add msg to response!!!\n", file.Name)
+			failed(fmt.Sprintf("Invalid file '%s'!", file.Name))
-			ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
 			return
 		}
 
@@ -64,90 +145,95 @@ func processZipFile(c *Context, model *BaseModel) {
 	}
 
 	if !reflect.DeepEqual(testing, training) {
-		fmt.Printf("testing and training are diferent\n")
+		c.Logger.Info("Diff", "testing", testing, "training", training)
-		fmt.Println(testing)
+		failed("Testing and Training datesets are diferent")
-		fmt.Println(training)
-		ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
 		return
 	}
 
 	base_path := path.Join("savedData", model.Id, "data")
 	if err = os.MkdirAll(base_path, os.ModePerm); err != nil {
-		fmt.Printf("Failed to create base_path dir\n")
+		failed("Failed to create base_path dir\n")
-		ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
 		return
 	}
 
+    c.Logger.Info("File Structure looks good to append data", "model", model.Id)
+
 	ids := map[string]string{}
 
 	for i, name := range training {
 		id, err := model_classes.CreateClass(c.Db, model.Id, i, name)
 		if err != nil {
-			fmt.Printf("Failed to create class '%s' on db\n", name)
+			failed(fmt.Sprintf("Failed to create the class '%s'", name))
-			ModelUpdateStatus(c, id, FAILED_PREPARING_ZIP_FILE)
 			return
 		}
 		ids[name] = id
 	}
 
+    back_channel := make(chan int, c.Handle.Config.NumberOfWorkers)
+
+    file_chans := make([]chan *zip.File, c.Handle.Config.NumberOfWorkers)
+
+    for i := 0; i < c.Handle.Config.NumberOfWorkers; i++ {
+        file_chans[i] = make(chan *zip.File, 2)
+        go fileProcessor(c, model, reader, ids, base_path, i, file_chans[i], back_channel)
+    }
+
+	clean_up_channels := func() {
+        for i := 0; i < c.Handle.Config.NumberOfWorkers; i++ {
+            close(file_chans[i])
+        }
+        for i := 0; i < c.Handle.Config.NumberOfWorkers - 1; i++ {
+            _ = <- back_channel
+        }
+        close(back_channel)
+	}
+
+    first_round := true
+
+    channel_to_send := 0
+
+	// Parelalize this
+
 	for _, file := range reader.Reader.File {
+		// Skip if dir
 		if file.Name[len(file.Name)-1] == '/' {
 			continue
 		}
 
-		data, err := reader.Open(file.Name)
+        file_chans[channel_to_send] <- file
-		if err != nil {
-			fmt.Printf("Could not open file in zip %s\n", file.Name)
-			ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
-			return
-		}
-		defer data.Close()
-		file_data, err := io.ReadAll(data)
-		if err != nil {
-			fmt.Printf("Could not read file file in zip %s\n", file.Name)
-			ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
-			return
-		}
 
-		// TODO check if the file is a valid photo that matched the defined photo on the database
 
-		parts := strings.Split(file.Name, "/")
+        if first_round {
+            channel_to_send += 1
+            if c.Handle.Config.NumberOfWorkers == channel_to_send {
+                first_round = false
+            }
+        }
+        
+        // Can not do else if because need to handle the case where the value changes in
+        // previous if
+        if !first_round {
+            new_id, ok := <- back_channel 
+            if !ok {
+                c.Logger.Fatal("Something is very wrong please check as this line should be unreachable")
+            }   
 
-		mode := model_classes.DATA_POINT_MODE_TRAINING
+            if new_id < 0 {
-		if parts[0] == "testing" {
+                c.Logger.Error("Worker failed", "worker id", -(new_id + 1))
-			mode = model_classes.DATA_POINT_MODE_TESTING
+                clean_up_channels()
-		}
+                failed("One of the workers failed due to db error")
+                return
+            }
 
-		data_point_id, err := model_classes.AddDataPoint(c.Db, ids[parts[1]], "id://", mode)
+            channel_to_send = new_id
-		if err != nil {
+        }
-			fmt.Printf("Failed to add data point for %s\n", model.Id)
-			fmt.Println(err)
-			ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
-			return
-		}
 
-		file_path := path.Join(base_path, data_point_id+"."+model.Format)
-		f, err := os.Create(file_path)
-		if err != nil {
-			fmt.Printf("Could not create file %s\n", file_path)
-			ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
-			return
-		}
-		defer f.Close()
-		f.Write(file_data)
-
-		if !testImgForModel(c, model, file_path) {
-			c.Logger.Errorf("Image did not have valid format for model %s (in zip: %s)!", file_path, file.Name)
-			c.Logger.Warn("Not failling updating data point to status -1")
-			message := "Image did not have valid format for the model"
-			if err = model_classes.UpdateDataPointStatus(c.Db, data_point_id, -1, &message); err != nil {
-				c.Logger.Error("Failed to update data point status")
-				ModelUpdateStatus(c, model.Id, FAILED_PREPARING_ZIP_FILE)
-			}
-		}
 	}
 
-	fmt.Printf("Added data to model '%s'!\n", model.Id)
+    clean_up_channels()
+
+	c.Logger.Info("Added data to model", "model", model.Id)
+
 	ModelUpdateStatus(c, model.Id, CONFIRM_PRE_TRAINING)
 }
 
@@ -202,19 +288,20 @@ func processZipFileExpand(c *Context, model *BaseModel) {
 
 	ids := map[string]string{}
 
-    var baseOrder struct {
+	var baseOrder struct {
-        Order int `db:"class_order"`
+		Order int `db:"class_order"`
-    }
+	}
 
-    err = GetDBOnce(c, &baseOrder, "model_classes where model_id=$1 order by class_order desc;", model.Id)
+	err = GetDBOnce(c, &baseOrder, "model_classes where model_id=$1 order by class_order desc;", model.Id)
-    if err != nil {
+	if err != nil {
-        failed("Failed to get the last class_order")
+		failed("Failed to get the last class_order")
-    }
+	}
 
-    base := baseOrder.Order + 1
+	base := baseOrder.Order + 1
 
 	for i, name := range training {
-		id, err := model_classes.CreateClass(c.Db, model.Id, base + i, name)
+		id, _err := model_classes.CreateClass(c.Db, model.Id, base+i, name)
+        err = _err
 		if err != nil {
 			failed(fmt.Sprintf("Failed to create class '%s' on db\n", name))
 			return

logic/models/train/train.go

@@ -1903,12 +1903,14 @@ func handleTrain(handle *Handle) {
 			return c.JsonBadRequest("Definition not on status 3(training)")
 		}
 
-		c.Logger.Info("Updated model_definition!", "model", model_id, "progress", epoch, "accuracy", accuracy)
+		c.Logger.Debug("Updated model_definition!", "model", model_id, "progress", epoch, "accuracy", accuracy)
 
 		_, err = c.Db.Exec("update model_definition set epoch_progress=$1, accuracy=$2 where id=$3", epoch, accuracy, def_id)
 		if err != nil {
 			return c.Error500(err)
 		}
+
+        c.ShowMessage = false
 		return nil
 	})
 
@@ -1951,12 +1953,14 @@ func handleTrain(handle *Handle) {
 			return c.JsonBadRequest("Head not on status 3(training)")
 		}
 
-		c.Logger.Info("Updated model_head!", "head", head_id, "progress", epoch, "accuracy", accuracy)
+		c.Logger.Debug("Updated model_head!", "head", head_id, "progress", epoch, "accuracy", accuracy)
 
 		_, err = c.Db.Exec("update exp_model_head set epoch_progress=$1, accuracy=$2 where id=$3", epoch, accuracy, head_id)
 		if err != nil {
 			return c.Error500(err)
 		}
+
+        c.ShowMessage = false
 		return nil
 	})
 }

logic/utils/config.go

@@ -8,8 +8,9 @@ import (
 )
 
 type Config struct {
-	Hostname string
+	Hostname        string
-	Port     int
+	Port            int
+    NumberOfWorkers int `toml:"number_of_workers"`
 }
 
 func LoadConfig() Config {
@@ -21,8 +22,9 @@ func LoadConfig() Config {
 		log.Error("Failed to load config file", "err", err)
 		// Use default values
 		return Config{
-			Hostname: "localhost",
+			Hostname:        "localhost",
-			Port:     8000,
+			Port:            8000,
+			NumberOfWorkers: 10,
 		}
 	}