Merge pull request #141 from haiwen/db_owner

Db owner

scripts/utils/__init__.py

@@ -265,8 +265,16 @@ def update_version_stamp(version, fn=get_version_stamp_file()):
         fp.write(version + '\n')
 
 def wait_for_mysql():
+    tried = False
     while not exists('/var/run/mysqld/mysqld.sock'):
         logdbg('waiting for mysql server to be ready')
+        """
+        Try to solve the MySQL startup failure caused by the permission problem 
+        caused by the MySQL user's uid change.
+        """
+        if not tried:
+            os.system('rm /var/lib/mysql/tc.log -f  && chown -R mysql.mysql /var/lib/mysql/')
+            tried = True
         time.sleep(2)
     logdbg('mysql server is ready')