Public bug reported: Every time an item is fetched from the memory cache, the whole cache is scanned for expired items:
https://github.com/openstack/nova/blob/master/nova/openstack/common/memorycache.py#L63-L67 This is not the right place to expire items - a large cache can become slow. There should be a periodic task to take care of expired items. ** Affects: nova Importance: Undecided Status: New ** Summary changed: - memorycache get scans the whole cache for expired items on every fetch + memorycache#get scans the whole cache for expired items on every fetch ** Description changed: Every time an item is fetched from the memory cache, the whole cache is scanned for expired items: https://github.com/openstack/nova/blob/master/nova/openstack/common/memorycache.py#L63-L67 - This is not the right place - there should be a periodic task to take - care of expired items. + This is not the right place to expire items - a large cache can become + slow. There should be a periodic task to take care of expired items. -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1276530 Title: memorycache#get scans the whole cache for expired items on every fetch Status in OpenStack Compute (Nova): New Bug description: Every time an item is fetched from the memory cache, the whole cache is scanned for expired items: https://github.com/openstack/nova/blob/master/nova/openstack/common/memorycache.py#L63-L67 This is not the right place to expire items - a large cache can become slow. There should be a periodic task to take care of expired items. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1276530/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
