diff -r 928732ec00dd -r fa44db7da2dc web/application.py
--- a/web/application.py	Thu Jul 17 11:08:56 2014 +0200
+++ b/web/application.py	Fri Jul 18 17:35:25 2014 +0200
@@ -35,7 +35,7 @@
 from cubicweb import (
     ValidationError, Unauthorized, Forbidden,
     AuthenticationError, NoSelectableObject,
-    BadConnectionId, CW_EVENT_MANAGER)
+    CW_EVENT_MANAGER)
 from cubicweb.repoapi import anonymous_cnx
 from cubicweb.web import LOGGER, component, cors
 from cubicweb.web import (
@@ -88,22 +88,15 @@
         closed, total = 0, 0
         for session in self.current_sessions():
             total += 1
-            try:
-                last_usage_time = session.cnx.check()
-            except AttributeError:
-                last_usage_time = session.mtime
-            except BadConnectionId:
+            last_usage_time = session.mtime
+            no_use_time = (time() - last_usage_time)
+            if session.anonymous_session:
+                if no_use_time >= self.cleanup_anon_session_time:
+                    self.close_session(session)
+                    closed += 1
+            elif session_time is not None and no_use_time >= session_time:
                 self.close_session(session)
                 closed += 1
-            else:
-                no_use_time = (time() - last_usage_time)
-                if session.anonymous_session:
-                    if no_use_time >= self.cleanup_anon_session_time:
-                        self.close_session(session)
-                        closed += 1
-                elif session_time is not None and no_use_time >= session_time:
-                    self.close_session(session)
-                    closed += 1
         return closed, total - closed
 
     def current_sessions(self):
@@ -300,6 +293,21 @@
         """wrapper around _publish to log all queries executed for a given
         accessed path
         """
+        def wrap_set_cnx(func):
+            def wrap_execute(cnx):
+                orig_execute = cnx.execute
+                def execute(rql, kwargs=None, build_descr=True):
+                    tstart, cstart = time(), clock()
+                    rset = orig_execute(rql, kwargs, build_descr=build_descr)
+                    cnx.executed_queries.append((rql, kwargs, time() - tstart, clock() - cstart))
+                    return rset
+                return execute
+            def set_cnx(cnx):
+                func(cnx)
+                cnx.execute = wrap_execute(cnx)
+                cnx.executed_queries = []
+            return set_cnx
+        req.set_cnx = wrap_set_cnx(req.set_cnx)
         try:
             return self.main_handle_request(req, path)
         finally: