openstack/zaqar
Code Issues Proposed changes

Merge "opt: add hints to make delete/claim checks faster"

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Jenkins 2013-12-04 22:43:56 +00:00 committed by Gerrit Code Review
commit ec18885d96
1 changed files with 7 additions and 3 deletions
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10
marconi/queues/storage/mongodb/messages.py
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@ -316,7 +316,9 @@ class MessageController(storage.MessageBase):
preference = pymongo.read_preferences.ReadPreference.PRIMARY preference = pymongo.read_preferences.ReadPreference.PRIMARY
collection = self._collection(queue_name, project) collection = self._collection(queue_name, project)
msgs = collection.find(query, sort=[('k', 1)], msgs = collection.find(query, sort=[('k', 1)],
read_preference=preference) read_preference=preference).hint(
CLAIMED_INDEX_FIELDS
)
if limit is not None: if limit is not None:
msgs = msgs.limit(limit) msgs = msgs.limit(limit)
@ -632,9 +634,11 @@ class MessageController(storage.MessageBase):
return return
now = timeutils.utcnow_ts() now = timeutils.utcnow_ts()
message = collection.find_one(query) cursor = collection.find(query).hint(ID_INDEX_FIELDS)
if message is None: try:
message = next(cursor)
except StopIteration:
return return
is_claimed = (message['c']['id'] is not None and is_claimed = (message['c']['id'] is not None and