Index: /branches/rel_avx_2_7_4/src/webui/webui/htdocs/new/src/avx/models/va/instance/handler.py
===================================================================
--- /branches/rel_avx_2_7_4/src/webui/webui/htdocs/new/src/avx/models/va/instance/handler.py	(revision 9046)
+++ /branches/rel_avx_2_7_4/src/webui/webui/htdocs/new/src/avx/models/va/instance/handler.py	(working copy)
@@ -17,6 +17,7 @@
 import os
 import fcntl
 import shutil
+import errno
 
 TEMP_DIR = '/tmp'
 VA_INSTANCE_COUNTER_DIR = '/va_instance_counter'
@@ -28,10 +29,14 @@
         self.session_id = session_id
         self.counter_dir = TEMP_DIR + VA_INSTANCE_COUNTER_DIR
         self.session_dir = self.counter_dir + "/%s/" % self.session_id
-        if not os.path.exists(self.counter_dir):
-            os.mkdir(self.counter_dir)
-        if not os.path.exists(self.session_dir):
-            os.mkdir(self.session_dir)
+        try:
+            if not os.path.exists(self.counter_dir):
+                os.mkdir(self.counter_dir)
+            if not os.path.exists(self.session_dir):
+                os.mkdir(self.session_dir)
+        except OSError as e:
+            if e.errno != errno.EEXIST:
+                raise
         self.counter_file = self.session_dir + VA_INSTANCE_COUNTER_FILE
 
     def get_result_file(self, uuid):