Bug 1277687

Summary: iscsi deployment images should NOT be mounted from /mnt
Product: Red Hat OpenStack Reporter: Dan Yocum <dyocum>
Component: rhosp-directorAssignee: Lucas Alvares Gomes <lmartins>
Status: CLOSED CURRENTRELEASE QA Contact: Shai Revivo <srevivo>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.0 (Kilo)CC: dmacpher, dtantsur, jcoufal, mburns, rhel-osp-director-maint
Target Milestone: ---   
Target Release: 10.0 (Newton)   
Hardware: All   
OS: All   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-10-17 09:03:19 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Dan Yocum 2015-11-03 20:22:12 UTC 
Description of problem:

During deployment, iscsi volumes are attempted to be placed in the /mnt/state/ dir regardless of the size the volume that /mnt may be on (usually /, which may be a small partition, sized only to hold config files, binaries, libraries, etc.)

The purpose of the /mnt dir is to temporarily mount things _on_, and not a dir to mount things _from_.  See this:

http://www.pathname.com/fhs/pub/fhs-2.3.html#MNTMOUNTPOINTFORATEMPORARILYMOUNT

The iscsi system image should be mounted from a FS that is sufficiently large, for instance /var or /home.

Version-Release number of selected component (if applicable):


How reproducible:
Every


Steps to Reproduce:
1. Put /mnt on the / FS with only 2.4GB of usable space
2. openstack deploy overcloud -e ....
3.

Actual results:
2015-10-08 21:50:42.043 1352 WARNING ironic.conductor.manager [-] Error
in deploy of node 3ffa5493-6876-45cd-ae8e-9ce06814365f: Disk volume
where '/mnt/state/var/lib/ironic/master_images/tmpWS1GRD' is located
doesn't have enough disk space. Required 3953 MiB, only 1765 MiB
available space present.

Expected results:
Overcloud deploys

Additional info:
Comment 3 Dan Yocum 2016-04-01 14:10:51 UTC 
Forgot about this and got bit by it, again.  

Adding dmacpher to add this to the Troubleshooting section of the Director docs:


"

If the following error is issued in the ironic-conductor.log, then make sure /mnt is on a filesystem volume that is at least 20GB:

2015-10-08 21:50:42.043 1352 WARNING ironic.conductor.manager [-] Error
in deploy of node 3ffa5493-6876-45cd-ae8e-9ce06814365f: Disk volume
where '/mnt/state/var/lib/ironic/master_images/tmpWS1GRD' is located
doesn't have enough disk space. Required 3953 MiB, only 1765 MiB
available space present.

"
Comment 4 Mike Burns 2016-04-07 20:54:03 UTC 
This bug did not make the OSP 8.0 release.  It is being deferred to OSP 10.
Comment 6 Dmitry Tantsur 2016-10-17 09:03:19 UTC 
Hi! I've just checked, and in OSP10 Ironic stores images in /var, as expected. Maybe it was a configuration problem back then.