Change default log output to stdout

Signed-off-by: Nsunby <bingyi.sun@zilliz.com>

configs/milvus.yaml

@@ -78,7 +78,7 @@ dataNode:
 log:
   level: debug
   file:
-    rootPath: /tmp/milvus
+    rootPath: ""
     maxSize: 300 # MB
     maxAge: 10 # day
     maxBackups: 20

internal/datanode/param_table.go

@@ -311,5 +311,9 @@ func (p *ParamTable) initLogCfg() {
 	if err != nil {
 		panic(err)
 	}
-	p.Log.File.Filename = path.Join(rootPath, "datanode-"+strconv.FormatInt(p.NodeID, 10)+".log")
+	if len(rootPath) != 0 {
+		p.Log.File.Filename = path.Join(rootPath, "datanode-"+strconv.FormatInt(p.NodeID, 10)+".log")
+	} else {
+		p.Log.File.Filename = ""
+	}
 }

internal/dataservice/param.go

@@ -237,5 +237,9 @@ func (p *ParamTable) initLogCfg() {
 	if err != nil {
 		panic(err)
 	}
-	p.Log.File.Filename = path.Join(rootPath, "dataservice-"+strconv.FormatInt(p.NodeID, 10)+".log")
+	if len(rootPath) != 0 {
+		p.Log.File.Filename = path.Join(rootPath, "dataservice-"+strconv.FormatInt(p.NodeID, 10)+".log")
+	} else {
+		p.Log.File.Filename = ""
+	}
 }

internal/masterservice/param_table.go

@@ -203,5 +203,9 @@ func (p *ParamTable) initLogCfg() {
 	if err != nil {
 		panic(err)
 	}
-	p.Log.File.Filename = path.Join(rootPath, fmt.Sprintf("masterservice-%d.log", p.NodeID))
+	if len(rootPath) != 0 {
+		p.Log.File.Filename = path.Join(rootPath, fmt.Sprintf("masterservice-%d.log", p.NodeID))
+	} else {
+		p.Log.File.Filename = ""
+	}
 }

internal/querynode/param_table.go

@@ -469,5 +469,9 @@ func (p *ParamTable) initLogCfg() {
 	if err != nil {
 		panic(err)
 	}
-	p.Log.File.Filename = path.Join(rootPath, fmt.Sprintf("querynode-%d.log", p.QueryNodeID))
+	if len(rootPath) != 0 {
+		p.Log.File.Filename = path.Join(rootPath, fmt.Sprintf("querynode-%d.log", p.QueryNodeID))
+	} else {
+		p.Log.File.Filename = ""
+	}
 }

internal/queryservice/param_table.go

@@ -92,7 +92,11 @@ func (p *ParamTable) initLogCfg() {
 	if err != nil {
 		panic(err)
 	}
-	p.Log.File.Filename = path.Join(rootPath, fmt.Sprintf("queryService-%d.log", p.NodeID))
+	if len(rootPath) != 0 {
+		p.Log.File.Filename = path.Join(rootPath, fmt.Sprintf("queryService-%d.log", p.NodeID))
+	} else {
+		p.Log.File.Filename = ""
+	}
 }
 
 func (p *ParamTable) initStatsChannelName() {