debug db lock

core/framework/db/mysqli.php

@@ -613,7 +613,8 @@ class Db
         self::init_link();
         if (self::$iftransacte)
         {
-    		$result = self::$link[$host]->autocommit(false);
+            Log::record("autocommit start 1",Log::DEBUG);
+            $result = self::$link[$host]->autocommit(false);
     		if($result == false)
     		{
                 $errno = mysqli_errno(self::$link[$host]);
@@ -624,7 +625,7 @@ class Db
                     self::closeLink($host);
                     self::connect($host);
                 }
-                Log::record("autocommit start",Log::DEBUG);
+                Log::record("autocommit start 2",Log::DEBUG);
                 self::$link[$host]->autocommit(false);
             }
     	}
@@ -635,7 +636,7 @@ class Db
     {
         if (!self::$iftransacte) {
     		$result = self::$link[$host]->commit();
-            Log::record("autocommit end",Log::DEBUG);
+            Log::record("autocommit end 1",Log::DEBUG);
             self::$link[$host]->autocommit(true);//开启自动提交
     		self::$iftransacte = true;
     		if (!$result) throw_exception("Db Error: ".mysqli_error(self::$link[$host]));
@@ -646,7 +647,7 @@ class Db
     {
         if (!self::$iftransacte){
     		$result = self::$link[$host]->rollback();
-            Log::record("autocommit end",Log::DEBUG);
+            Log::record("autocommit end 2",Log::DEBUG);
             self::$link[$host]->autocommit(true);
     		self::$iftransacte = true;
     		if (!$result) throw_exception("Db Error: ".mysqli_error(self::$link[$host]));