Gorka Eguileor 28879f9a78 On Volume list only retrieve needed data from DB ... Currently when there is no limit set on a volume list query we retrieve all volumes and then limit them locally using osapi_max_limit. Similar thing happens when we are using the marker for next pages, we get all volumes from that marker until the last volume and then limit it locally. We should be limiting it on the DB side so we only retrieve the data we are actually going to return to the API caller. This patch always limits the data retrieved from the DB and for the offset to keep working as it was before we need to do the offset on the DB side as well. For reference some tests were performed: On a deployment with 60,000 volumes, 370,000 volume_metadata items and 240,000 volume_glance_metadata items in cinder db. Before the patch this will use nearly 10G memory. With the patch we will just use about 500M. Co-Authored-By: wangxiyuan <wangxiyuan@huawei.com> Closes-bug:#1483165i Change-Id: Ie903e546074fe118299e8e1acfb9c88c8a10d78c		2015-08-14 10:05:47 +02:00
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views	On Volume list only retrieve needed data from DB	2015-08-14 10:05:47 +02:00
__init__.py	adding copy of v1 as v2	2012-11-21 21:26:40 -08:00
limits.py	Fix multi-line docstrings to meet hacking rules	2015-07-30 11:34:16 -05:00
router.py	Use oslo.log instead of oslo-incubator	2015-03-11 21:45:04 -05:00
snapshot_metadata.py	Validate outermost request body element name consistently	2015-06-18 23:16:48 -07:00
snapshots.py	Remove unused context parameter	2015-07-27 02:03:53 -07:00
types.py	Change generic NotFound to specific exception	2015-06-25 05:25:07 -07:00
volume_metadata.py	set/unset volume image metadata	2015-07-11 12:13:58 +08:00
volumes.py	On Volume list only retrieve needed data from DB	2015-08-14 10:05:47 +02:00