Public bug reported:
When you boot a nova instance from a volume (from Cinder) using the
following command
nova boot --flavor 6 --block-device
source=image,id=$SRCIMAGEUUID,dest=volume,size=10,shutdown=remove,bootindex=0
--key-name $KEYNAME testbfv$x
The disk accounting is not handled correctly and errors out with this
log message
2016-07-13 12:33:30.340 DEBUG nova.scheduler.filters.disk_filter [req-
6a2c44a2-0912-4e2f-8dae-0005b19656ea demo demo] (devstack-mitaka
-compute.pm.solidfire.net, devstack-mitaka-compute.pm.solidfire.net)
ram: 3215MB disk: 4096MB io_ops: 2 instances: 2 does not have 20480 MB
usable disk, it only has 4096.0 MB usable disk. from (pid=28366)
host_passes /opt/stack/new/nova/nova/scheduler/filters/disk_filter.py:55
nova hypervisor-show before creating instances (4 @ 10GB each)
| free_disk_gb | 44 |
Then create 4 (on this hypervisor) instance at 10Gb each nova
hypervisor-show shows this:
| free_disk_gb | 4 |
Since these are Cinder volumes, they should not count against the
Hypervisor disks space.
This testing was done against Mitaka devstack.
** Affects: nova
Importance: Undecided
Status: New
** Project changed: cinder => nova
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https://bugs.launchpad.net/bugs/1603513
Title:
Nova boot from volume doesn't account for disk correctly
Status in OpenStack Compute (nova):
New
Bug description:
When you boot a nova instance from a volume (from Cinder) using the
following command
nova boot --flavor 6 --block-device
source=image,id=$SRCIMAGEUUID,dest=volume,size=10,shutdown=remove,bootindex=0
--key-name $KEYNAME testbfv$x
The disk accounting is not handled correctly and errors out with this
log message
2016-07-13 12:33:30.340 DEBUG nova.scheduler.filters.disk_filter [req-
6a2c44a2-0912-4e2f-8dae-0005b19656ea demo demo] (devstack-mitaka
-compute.pm.solidfire.net, devstack-mitaka-compute.pm.solidfire.net)
ram: 3215MB disk: 4096MB io_ops: 2 instances: 2 does not have 20480 MB
usable disk, it only has 4096.0 MB usable disk. from (pid=28366)
host_passes
/opt/stack/new/nova/nova/scheduler/filters/disk_filter.py:55
nova hypervisor-show before creating instances (4 @ 10GB each)
| free_disk_gb | 44
|
Then create 4 (on this hypervisor) instance at 10Gb each nova
hypervisor-show shows this:
| free_disk_gb | 4
|
Since these are Cinder volumes, they should not count against the
Hypervisor disks space.
This testing was done against Mitaka devstack.
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https://bugs.launchpad.net/nova/+bug/1603513/+subscriptions
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