limit pool size of running instances

Author: gurneyalex

runbot/runbot.py

@@ -832,7 +832,7 @@ def job_30_run(self, cr, uid, build, lock_path, log_path):
                 cmd += ['--db-filter','%d.*$']
             else:
                 cmd += ['--db-filter','%s.*$' % build.dest]
-
+        cmd += ['--db_maxconn', 8]
         ## Web60
         #self.client_web_path=os.path.join(self.running_path,"client-web")
         #self.client_web_bin_path=os.path.join(self.client_web_path,"openerp-web.py")