--- a/server/sources/pyrorql.py	Mon Sep 03 12:26:20 2012 +0200
+++ b/server/sources/pyrorql.py	Fri Sep 14 17:42:24 2012 +0200
@@ -91,5 +91,9 @@
         except AttributeError:
             # inmemory connection
             pass
-        return super(PyroRQLSource, self).check_connection(cnx)
+        try:
+            return super(PyroRQLSource, self).check_connection(cnx)
+        except ConnectionClosedError:
+            # try to reconnect
+            return self.get_connection()