From b4c276263fe1073f14d42fe49980f3aaa5c762f5 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Mon, 1 Apr 2019 11:03:04 -0700
Subject: [PATCH] weed filer: mysql/postgres use ReadCommitted transaction
 isolation level for atomic rename

---
 weed/filer2/abstract_sql/abstract_sql_store.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/weed/filer2/abstract_sql/abstract_sql_store.go b/weed/filer2/abstract_sql/abstract_sql_store.go
index 9a3ee51c3..3e8554957 100644
--- a/weed/filer2/abstract_sql/abstract_sql_store.go
+++ b/weed/filer2/abstract_sql/abstract_sql_store.go
@@ -26,7 +26,10 @@ type TxOrDB interface {
 }
 
 func (store *AbstractSqlStore) BeginTransaction(ctx context.Context) (context.Context, error) {
-	tx, err := store.DB.BeginTx(ctx, nil)
+	tx, err := store.DB.BeginTx(ctx, &sql.TxOptions{
+		Isolation: sql.LevelReadCommitted,
+		ReadOnly:  false,
+	})
 	if err != nil {
 		return ctx, err
 	}