Fix queryservice client init bug

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

internal/distributed/queryservice/client/client.go

@@ -39,7 +39,7 @@ func (c *Client) Init() error {
 
 	var err error
 	for i := 0; i < c.retry; i++ {
-		if c.conn, err = grpc.DialContext(ctx, c.addr, grpc.WithInsecure(), grpc.WithBlock()); err != nil {
+		if c.conn, err = grpc.DialContext(ctx, c.addr, grpc.WithInsecure(), grpc.WithBlock()); err == nil {
 			break
 		}
 	}

internal/proxynode/task.go

@@ -397,14 +397,17 @@ func (dct *DropCollectionTask) Execute() error {
 	if err != nil {
 		return err
 	}
-	dct.result, _ = dct.masterClient.DropCollection(dct.DropCollectionRequest)
-	if dct.result.ErrorCode != commonpb.ErrorCode_SUCCESS {
-		return errors.New(dct.result.Reason)
+
+	dct.result, err = dct.masterClient.DropCollection(dct.DropCollectionRequest)
+	if err != nil {
+		return err
 	}
+
 	err = globalInsertChannelsMap.closeInsertMsgStream(collID)
 	if err != nil {
 		return err
 	}
+
 	return nil
 }