[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]
** Changed in: nova
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1384546
Title:
Disk filter is not worked correct when the instance directory are
shared
Status in OpenStack Compute (Nova):
Expired
Bug description:
- Abstraction
When you assign an launch request of instance, disk filter to a decision by
looking at the free disk space on the target nova-compute.
Here, since the calculation of the free space is not performed correctly if
you are sharing a disk with multiple nova-compute, it would allow instance
start up in nova-compute no free disk
- Situation
If the instance directory is shared, the launch request of the instance that
more than the actual disk size can not be blocked.
For example, if you had to share the disc with nova-compute between the two,
it is assumed that you start the instance at the same time multiple units.
Free space of the shared disk is 15G, if the instance to start was a disk of
10G, respectively, as Quota, the instance of the two or to start?
When's current situation, it starts normally both.
However, since disk space is 15G in fact, it is not possible to use the disk
of 15G or more in both instance.
- How to reproduce
0. Append disk filter on nova-scheduler
1. Prepare two nova-compute with share the instance directory as NFS.
2. NFS disk has 15G free space.
3. Boot two instance at the same time with 10G disk
4. Both instance can boot normally
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