From 5c34dede63311c83dd0bf0210eca262f82300cfc Mon Sep 17 00:00:00 2001
From: Pedro Algarvio <pedro@algarvio.me>
Date: Mon, 29 Apr 2013 08:15:51 +0100
Subject: [PATCH] Warn and reset `worker_threads` to the minimum of 3 if lower.

---
 salt/config.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/salt/config.py b/salt/config.py
index 7a7c70092e..ea4ccda6d9 100644
--- a/salt/config.py
+++ b/salt/config.py
@@ -569,6 +569,16 @@ def apply_master_config(overrides=None, defaults=None):
         if isinstance(opts['file_ignore_glob'], str):
             opts['file_ignore_glob'] = [opts['file_ignore_glob']]
 
+    # Let's make sure `worker_threads` does not drop bellow 3 which has proven
+    # to make `salt.modules.publish` not work under the test-suite.
+    if opts['worker_threads'] < 3:
+        log.warning(
+            'The \'worker_threads\' setting on {0!r} cannot be lower than 3. '
+            'Resetting it to the default value of 3.'.format(
+                opts['conf_file']
+            )
+        )
+        opts['worker_threads'] = 3
     return opts