Open Stack

Hi Sisu,

Sorry – I understand now.  When you upload an image to glance it will get stored in the DevStackOSDomU by default, as that is where Swift is storing it’s data.
The data is likely in /opt/stack/data/swift but is likely still owned by the glance service account.  Unfortunately by rebooting the machine you caused devstack to restart.  It’s very possible that the glance image repository is not maintained between devstack runs – if so, the image could be ‘lost’ within swift.

We typically only use very small virtual machines for testing (which is the primary purpose of the devstack-setup) which is why we have not seen such space used in the DomU.

Bob

From: Sisu Xi [mailto:xisisu at gmail.com]
Sent: 16 June 2014 16:36
To: xs-devel at lists.xenserver.org
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] [xs-devel] Delete the imported VM image to release space -- Sisu

Hi, Bob:

But when I port image into nova, I need to get it into DevStackOSDomU, right?

I just don't know why the disk is full. Here is the process:
1. port self-build image using glance image-create;
2. shutdown machine
3. boot machine up, the disk space is gone, and I don't know how to free it.

Thanks.

Sisu




On Mon, Jun 16, 2014 at 4:43 AM, Bob Ball <bob.ball at citrix.com<mailto:bob.ball at citrix.com>> wrote:
Nothing should be downloading files to DevStackOSDomU; they get downloaded straight into dom0 when you create an image.

Why do you think the missing disk space is related to mysql, or to /var?

Bob

From: xs-devel-request at lists.xenserver.org<mailto:xs-devel-request at lists.xenserver.org> [mailto:xs-devel-request at lists.xenserver.org<mailto:xs-devel-request at lists.xenserver.org>] On Behalf Of Sisu Xi
Sent: 14 June 2014 23:19
To: xs-devel at lists.xenserver.org<mailto:xs-devel at lists.xenserver.org>; openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>
Subject: [xs-devel] Delete the imported VM image to release space -- Sisu

Hi, all:

I am using OpenStack with XenServer. I am using a pre-build image found in:
http://downloads.vmd.citrix.com/OpenStack/
The image file is devstack-havana.xva.

This image has a disk size of 40G, I tried to import a self-build 15G image, it worked just fine.

When I reboot the machine, the previously imported 15G image is gone (which is expected).
stack at DevStackOSDomU:~$ glance image-list
+--------------------------------------+---------------------------------+-------------+------------------+----------+--------+
| ID                                   | Name                            | Disk Format | Container Format | Size     | Status |
+--------------------------------------+---------------------------------+-------------+------------------+----------+--------+
| 22bcc4ed-c412-495d-995c-bdfc571e0991 | cirros-0.3.0-x86_64-disk        | vhd         | ovf              | 9220018  | active |
| 93aefd5f-3e75-4969-a013-e49e9c85163d | cirros-0.3.1-x86_64-uec         | ami         | ami              | 25165824 | active |
| 4d63a0d5-91e0-4fcb-944c-9fa25e7549e8 | cirros-0.3.1-x86_64-uec-kernel  | aki         | aki              | 4955792  | active |
| d8c961b7-5fe1-4520-8fa3-8bba97729eeb | cirros-0.3.1-x86_64-uec-ramdisk | ari         | ari              | 3714968  | active |
+--------------------------------------+---------------------------------+-------------+------------------+----------+--------+


However, the disk-space is not released. And I cannot find the previously imported image.
---------result of df-ah---------
root at DevStackOSDomU:/var/lib/mysql# df -ah
Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda1       38G   33G  3.1G  92% /
proc               0     0     0    - /proc
sysfs              0     0     0    - /sys
none               0     0     0    - /sys/fs/fuse/connections
none               0     0     0    - /sys/kernel/debug
none               0     0     0    - /sys/kernel/security
udev            1.5G  4.0K  1.5G   1% /dev
devpts             0     0     0    - /dev/pts
tmpfs           300M  288K  300M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            1.5G     0  1.5G   0% /run/shm
none               0     0     0    - /proc/xen

I checked the /var/lib/mysql, and also tried to use "du -a /var | sort -n -r | head -n 10" to find the top 10 files, but still cannot find any file larger than 1G.

Can anyone help me with this?

Thanks very much!

Sisu


--
[https://dl.dropboxusercontent.com/u/268069/Sisu_Contact.jpeg]

Sisu Xi, PhD Candidate

http://www.cse.wustl.edu/~xis/
Department of Computer Science and Engineering
Campus Box 1045
Washington University in St. Louis
One Brookings Drive
St. Louis, MO 63130



--
[https://dl.dropboxusercontent.com/u/268069/Sisu_Contact.jpeg]

Sisu Xi, PhD Candidate

http://www.cse.wustl.edu/~xis/
Department of Computer Science and Engineering
Campus Box 1045
Washington University in St. Louis
One Brookings Drive
St. Louis, MO 63130
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