From 22c112c0b165f922ffa86aba24e3c51fd1655d6c Mon Sep 17 00:00:00 2001
From: Mike McLean <mikem@redhat.com>
Date: Mar 19 2019 15:43:55 +0000
Subject: [PATCH 1/2] avoid multiple server_setup calls when multiple threads in use


---

diff --git a/hub/kojixmlrpc.py b/hub/kojixmlrpc.py
index 9b8ef93..08a344b 100644
--- a/hub/kojixmlrpc.py
+++ b/hub/kojixmlrpc.py
@@ -27,6 +27,7 @@ import logging
 import os
 import sys
 import time
+import threading
 import traceback
 import pprint
 import resource
@@ -691,12 +692,16 @@ def server_setup(environ):
 #
 
 firstcall = True
+firstcall_lock = threading.Lock()
 
 def application(environ, start_response):
     global firstcall
     if firstcall:
-        server_setup(environ)
-        firstcall = False
+        with firstcall_lock:
+            # check again, another thread may be ahead of us
+            if firstcall:
+                server_setup(environ)
+                firstcall = False
     # XMLRPC uses POST only. Reject anything else
     if environ['REQUEST_METHOD'] != 'POST':
         headers = [

From a7b496961cac9f05e06ad208ed4fa76c1458be3a Mon Sep 17 00:00:00 2001
From: Mike McLean <mikem@redhat.com>
Date: Mar 19 2019 15:46:50 +0000
Subject: [PATCH 2/2] disable mod_wsgi reloading


Fixes: https://pagure.io/koji/issue/875

---

diff --git a/hub/httpd.conf b/hub/httpd.conf
index b8cfbaf..8a741d7 100644
--- a/hub/httpd.conf
+++ b/hub/httpd.conf
@@ -10,6 +10,9 @@ Alias /kojihub /usr/share/koji-hub/kojixmlrpc.py
     WSGIApplicationGroup %{GLOBAL}
     # ^ works around a hub issue with OpenSSL
     # see: https://cryptography.io/en/latest/faq/#starting-cryptography-using-mod-wsgi-produces-an-internalerror-during-a-call-in-register-osrandom-engine
+    WSGIScriptReloading Off
+    # ^ reloading breaks hub "firstcall" check
+    # see: https://pagure.io/koji/issue/875
     <IfVersion < 2.4>
         Order allow,deny
         Allow from all