reset queue reference in aws.py, use low priority queue (TNL-1591) (TNL-2003)

lms/envs/aws.py

@@ -204,10 +204,14 @@ BULK_EMAIL_INFINITE_RETRY_CAP = ENV_TOKENS.get('BULK_EMAIL_INFINITE_RETRY_CAP',
 BULK_EMAIL_LOG_SENT_EMAILS = ENV_TOKENS.get('BULK_EMAIL_LOG_SENT_EMAILS', BULK_EMAIL_LOG_SENT_EMAILS)
 BULK_EMAIL_RETRY_DELAY_BETWEEN_SENDS = ENV_TOKENS.get('BULK_EMAIL_RETRY_DELAY_BETWEEN_SENDS', BULK_EMAIL_RETRY_DELAY_BETWEEN_SENDS)
 # We want Bulk Email running on the high-priority queue, so we define the
-# routing key that points to it.  At the moment, the name is the same.
+# routing key that points to it. At the moment, the name is the same.
 # We have to reset the value here, since we have changed the value of the queue name.
 BULK_EMAIL_ROUTING_KEY = HIGH_PRIORITY_QUEUE
 
+# We can run smaller jobs on the low priority queue. See note above for why
+# we have to reset the value here.
+BULK_EMAIL_ROUTING_KEY_SMALL_JOBS = LOW_PRIORITY_QUEUE
+
 # Theme overrides
 THEME_NAME = ENV_TOKENS.get('THEME_NAME', None)
 

lms/envs/common.py

@@ -1524,7 +1524,7 @@ BULK_EMAIL_ROUTING_KEY = HIGH_PRIORITY_QUEUE
 
 # We also define a queue for smaller jobs so that large courses don't block
 # smaller emails (see BULK_EMAIL_JOB_SIZE_THRESHOLD setting)
-BULK_EMAIL_ROUTING_KEY_SMALL_JOBS = DEFAULT_PRIORITY_QUEUE
+BULK_EMAIL_ROUTING_KEY_SMALL_JOBS = LOW_PRIORITY_QUEUE
 
 # For emails with fewer than these number of recipients, send them through
 # a different queue to avoid large courses blocking emails that are meant to be

lms/envs/yaml_config.py

@@ -221,10 +221,14 @@ if 'loc_cache' not in CACHES:
     }
 
 # We want Bulk Email running on the high-priority queue, so we define the
-# routing key that points to it.  At the moment, the name is the same.
+# routing key that points to it. At the moment, the name is the same.
 # We have to reset the value here, since we have changed the value of the queue name.
 BULK_EMAIL_ROUTING_KEY = HIGH_PRIORITY_QUEUE
 
+# We can run smaller jobs on the low priority queue. See note above for why
+# we have to reset the value here.
+BULK_EMAIL_ROUTING_KEY_SMALL_JOBS = LOW_PRIORITY_QUEUE
+
 LANGUAGE_DICT = dict(LANGUAGES)
 
 # Additional installed apps