diff --git a/plugins/mysql-yum/scripts/backup.py b/plugins/mysql-yum/scripts/backup.py
index a5d7d51ed..4a5514252 100755
--- a/plugins/mysql-yum/scripts/backup.py
+++ b/plugins/mysql-yum/scripts/backup.py
@@ -20,17 +20,23 @@ sys.path.append(chdir + '/class/core')
 import mw
 import db
 import time
+import re
+
+'''
+DEBUG:
+python3 /www/server/mdserver-web/plugins/mysql-yum/scripts/backup.py  database admin 3
+'''
 
 
 class backupTools:
 
     def backupDatabase(self, name, count):
-        db_path = mw.getServerDir() + '/mysql-ya'
+        db_path = mw.getServerDir() + '/mysql-yum'
         db_name = 'mysql'
-        name = mw.M('databases').dbPos(db_path, 'mysql').where(
+        find_name = mw.M('databases').dbPos(db_path, 'mysql').where(
             'name=?', (name,)).getField('name')
         startTime = time.time()
-        if not name:
+        if not find_name:
             endDate = time.strftime('%Y/%m/%d %X', time.localtime())
             log = "数据库[" + name + "]不存在!"
             print("★[" + endDate + "] " + log)
@@ -45,11 +51,11 @@ class backupTools:
         filename = backup_path + "/db_" + name + "_" + \
             time.strftime('%Y%m%d_%H%M%S', time.localtime()) + ".sql.gz"
 
-        import re
         mysql_root = mw.M('config').dbPos(db_path, db_name).where(
             "id=?", (1,)).getField('mysql_root')
 
-        mycnf = mw.readFile(db_path + '/etc/my.cnf')
+        my_conf_path = db_path + '/etc/my.cnf'
+        mycnf = mw.readFile(my_conf_path)
         rep = "\[mysqldump\]\nuser=root"
         sea = "[mysqldump]\n"
         subStr = sea + "user=root\npassword=" + mysql_root + "\n"
@@ -57,8 +63,9 @@ class backupTools:
         if len(mycnf) > 100:
             mw.writeFile(db_path + '/etc/my.cnf', mycnf)
 
-        mw.execShell(
-            db_path + "/bin/mysqldump --opt --default-character-set=utf8 " + name + " | gzip > " + filename)
+        cmd = db_path + "/bin/usr/bin/mysqldump --defaults-file=" + my_conf_path + "  --single-transaction --quick --default-character-set=utf8 " + \
+            name + " | gzip > " + filename
+        mw.execShell(cmd)
 
         if not os.path.exists(filename):
             endDate = time.strftime('%Y/%m/%d %X', time.localtime())
@@ -80,7 +87,7 @@ class backupTools:
 
         mw.M('backup').add('type,name,pid,filename,addtime,size', (1, os.path.basename(
             filename), pid, filename, endDate, os.path.getsize(filename)))
-        log = "数据库[" + name + "]备份成功,用时[" + str(round(outTime, 2)) + u"]秒"
+        log = "数据库[" + name + "]备份成功,用时[" + str(round(outTime, 2)) + "]秒"
         mw.writeLog('计划任务', log)
         print("★[" + endDate + "] " + log)
         print("|---保留最新的[" + count + "]份备份")
@@ -101,7 +108,7 @@ class backupTools:
                     break
 
     def backupDatabaseAll(self, save):
-        db_path = mw.getServerDir() + '/mysql-ya'
+        db_path = mw.getServerDir() + '/mysql-yum'
         db_name = 'mysql'
         databases = mw.M('databases').dbPos(
             db_path, db_name).field('name').select()