Erase database content when the node is asked to switch in DOWN_STATE.

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@1261 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/app.py

@@ -296,9 +296,11 @@ class Application(object):
             some_callable, args, kwargs = p()
             some_callable(*args, **kwargs)
 
-    def shutdown(self):
+    def shutdown(self, erase=False):
         """Close all connections and exit"""
         for c in self.em.getConnectionList():
             if not c.isListening():
                 c.close()
+        # clear database to avoid polluting the cluster at restart
+        self.dm.setup(reset=True)
         sys.exit("Application has been asked to shut down")

neo/storage/handlers/__init__.py

@@ -55,7 +55,8 @@ class BaseMasterHandler(BaseStorageHandler):
                 logging.info("I was told I'm %s" %(state))
                 if state in (DOWN_STATE, TEMPORARILY_DOWN_STATE, BROKEN_STATE):
                     conn.close()
-                    self.app.shutdown()
+                    erase = state == DOWN_STATE
+                    self.app.shutdown(erase=erase)
                 elif state == HIDDEN_STATE:
                     raise OperationFailure
 

neo/storage/handlers/hidden.py

@@ -39,7 +39,8 @@ class HiddenHandler(BaseMasterHandler):
                     # This is me, do what the master tell me
                     if state in (DOWN_STATE, TEMPORARILY_DOWN_STATE, BROKEN_STATE):
                         conn.close()
-                        self.app.shutdown()
+                        erase_db = state == DOWN_STATE
+                        self.app.shutdown(erase=erase_db)
 
     def handleRequestNodeIdentification(self, conn, packet, node_type,
                                         uuid, address, name):