X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/4a3cb7560929cb3fe4a7970bb1e307aa7af35712..13288c69988380210150124d7991af6ca6e3d62b:/services/nodemanager/tests/__init__.py

diff --git a/services/nodemanager/tests/__init__.py b/services/nodemanager/tests/__init__.py
index d374840eaf..20e02f91e4 100644
--- a/services/nodemanager/tests/__init__.py
+++ b/services/nodemanager/tests/__init__.py
@@ -1,4 +1,7 @@
 #!/usr/bin/env python
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
 
 import logging
 import os
@@ -7,10 +10,9 @@ import os
 loglevel = os.environ.get('ANMTEST_LOGLEVEL', 'CRITICAL')
 logging.basicConfig(level=getattr(logging, loglevel.upper()))
 
-# Many tests wait for an actor to call a mock method.  They poll very
-# regularly (see wait_for_call in ActorTestMixin), but if you've
-# broken something, a long timeout can mean you'll spend a lot of time
-# watching failures come in.  You can set the ANMTEST_TIMEOUT
-# environment variable to arrange a shorter timeout while you're doing
-# regular development.
+# Set the ANMTEST_TIMEOUT environment variable to the maximum amount of time to
+# wait for tested actors to respond to important messages.  The default value
+# is very conservative, because a small value may produce false negatives on
+# slower systems.  If you're debugging a known timeout issue, however, you may
+# want to set this lower to speed up tests.
 pykka_timeout = int(os.environ.get('ANMTEST_TIMEOUT', '10'))