[FIX] multiprocess mode, empty the cursor pool before forking

bzr revid: al@openerp.com-20140122221525-hify023pk5i8d0jm

openerp/service/server.py

@@ -182,7 +182,6 @@ class CommonServer(object):
         # runtime
         self.pid = os.getpid()
 
-
     def close_socket(self, sock):
         """ Closes a socket instance cleanly
         :param sock: the network socket to close
@@ -530,6 +529,8 @@ class PreforkServer(CommonServer):
                 raise
 
     def start(self):
+        # Empty the cursor pool, we dont want them to be shared among forked workers.
+        openerp.sql_db.close_all()
         # wakeup pipe, python doesnt throw EINTR when a syscall is interrupted
         # by a signal simulating a pseudo SA_RESTART. We write to a pipe in the
         # signal handler to overcome this behaviour

openerp/sql_db.py

@@ -27,9 +27,6 @@ the database, *not* a database abstraction toolkit. Database abstraction is what
 the ORM does, in fact.
 """
 
-
-__all__ = ['db_connect', 'close_db']
-
 from functools import wraps
 import logging
 import psycopg2.extensions
@@ -457,10 +454,10 @@ class ConnectionPool(object):
             raise PoolError('This connection does not below to the pool')
 
     @locked
-    def close_all(self, dsn):
+    def close_all(self, dsn=None):
         _logger.info('%r: Close all connections to %r', self, dsn)
         for i, (cnx, used) in tools.reverse_enumerate(self._connections):
-            if dsn_are_equals(cnx.dsn, dsn):
+            if dsn is None or dsn_are_equals(cnx.dsn, dsn):
                 cnx.close()
                 self._connections.pop(i)
 
@@ -522,6 +519,11 @@ def close_db(db_name):
     if _Pool:
         _Pool.close_all(dsn(db_name))
 
+def close_all():
+    global _Pool
+    if _Pool:
+        _Pool.close_all()
+
 
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