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| author | Hans Lindgren <hanlind@kth.se> | 2013-01-09 16:01:52 +0100 |
|---|---|---|
| committer | Hans Lindgren <hanlind@kth.se> | 2013-01-22 22:55:47 +0100 |
| commit | 3783cf3cc9c571beb9c75e5b0e39bf449520aaf3 (patch) | |
| tree | cd36b4c8e885673fa0a1e19929a58232869bbb23 /nova/scheduler/driver.py | |
| parent | cd4093e0f2a7d07fa81915dc4866f4ac7324a028 (diff) | |
| download | nova-3783cf3cc9c571beb9c75e5b0e39bf449520aaf3.tar.gz nova-3783cf3cc9c571beb9c75e5b0e39bf449520aaf3.tar.xz nova-3783cf3cc9c571beb9c75e5b0e39bf449520aaf3.zip | |
Add support for memory overcommit in live-migration
Override the live-migration memory check in FilterScheduler and
make it use RamFilter for checking available memory on target
host.
Resolves bug 1068258.
Change-Id: I3002b8330e595ce71e2718b2091d3b0b99747707
Diffstat (limited to 'nova/scheduler/driver.py')
| -rw-r--r-- | nova/scheduler/driver.py | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/nova/scheduler/driver.py b/nova/scheduler/driver.py index 09de10388..98d75076d 100644 --- a/nova/scheduler/driver.py +++ b/nova/scheduler/driver.py @@ -263,16 +263,9 @@ class Scheduler(object): """ # Getting total available memory of host - avail = self._get_compute_info(context, dest)['memory_mb'] - - # Getting total used memory and disk of host - # It should be sum of memories that are assigned as max value, - # because overcommitting is risky. - instance_refs = db.instance_get_all_by_host(context, dest) - used = sum([i['memory_mb'] for i in instance_refs]) + avail = self._get_compute_info(context, dest)['free_ram_mb'] mem_inst = instance_ref['memory_mb'] - avail = avail - used if not mem_inst or avail <= mem_inst: instance_uuid = instance_ref['uuid'] reason = _("Unable to migrate %(instance_uuid)s to %(dest)s: " |