fixed issue with scheduler and cache.disk introduced in 2.8.1

CHANGELOG

@@ -6,7 +6,7 @@
 - bootstrap 2.3.2
 - codemirror 3.19
 - improved  mongoDB support, thanks Alan
-- suport for wiki custom render function
+- support for wiki custom render function
 - Wiki(...groups=['x','y']) allows bypassing default permissions
 - fixed websocket_messaging.py to support newer Tornado
 - NDB support for GAE, thanks Quint

VERSION

@@ -1 +1 @@
-Version 2.8.1-stable+timestamp.2013.11.27.13.52.50
+Version 2.8.1-stable+timestamp.2013.11.28.07.50.08

gluon/cache.py

@@ -254,7 +254,10 @@ class CacheOnDisk(CacheAbstract):
         try:
             if self.storage:
                 self.storage.close()
+        except ValueError:
+            pass
         finally:
+            self.storage = None
             if self.locker and self.locked:
                 portalocker.unlock(self.locker)
                 self.locker.close()

gluon/shell.py

@@ -131,8 +131,11 @@ def env(
     request.function = f or 'index'
     response.view = '%s/%s.html' % (request.controller,
                                     request.function)
-    ip = global_settings.cmd_options.ip
+    if global_settings.cmd_options:
-    port = global_settings.cmd_options.port 
+        ip = global_settings.cmd_options.ip
+        port = global_settings.cmd_options.port 
+    else:
+        ip, port = '127.0.0.1', '8000'
     request.env.http_host = '%s:%s' % (ip,port)
     request.env.remote_addr = '127.0.0.1'
     request.env.web2py_runtime_gae = global_settings.web2py_runtime_gae