From 219fbe2b5f95948875d3c9be13da13f179cdfd2d Mon Sep 17 00:00:00 2001
From: "vn.py" <xiaoyou.chen@foxmail.com>
Date: Thu, 11 Apr 2019 09:18:41 +0800
Subject: [PATCH]  [Fix]close #1569

---
 vnpy/app/csv_loader/engine.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vnpy/app/csv_loader/engine.py b/vnpy/app/csv_loader/engine.py
index 2c384d02..c0547036 100644
--- a/vnpy/app/csv_loader/engine.py
+++ b/vnpy/app/csv_loader/engine.py
@@ -107,7 +107,7 @@ class CsvLoaderEngine(BaseEngine):
 
         # Insert into DB
         with DB.atomic():
-            for batch in chunked(db_bars, 500):
+            for batch in chunked(db_bars, 50):
                 DbBarData.insert_many(batch).on_conflict_replace().execute()
 
         return start, end, count