[one-users] data store not created in VMHosts

Hyun Woo Kim hyunwoo at fnal.gov
Fri Mar 28 09:05:08 PDT 2014

Here is the output.

By the way, In VMHost:/var/lib/one/,  subdirectory datastores itself does not get created, let alone datastores/100

Thank you.
Hyunwoo KIM
FermiCloud Project

-bash-4.1$ onehost show -x 4
    <MODELNAME><![CDATA[Intel(R) Xeon(R) CPU            5160  @ 3.00GHz]]></MODELNAME>

From: Carlos Martín Sánchez <cmartin at opennebula.org<mailto:cmartin at opennebula.org>>
Date: Friday, March 28, 2014 10:54 AM
To: Hyunwoo Kim <hyunwoo at fnal.gov<mailto:hyunwoo at fnal.gov>>
Cc: "users at lists.opennebula.org<mailto:users at lists.opennebula.org>" <users at lists.opennebula.org<mailto:users at lists.opennebula.org>>
Subject: Re: [one-users] data store not created in VMHosts


On Thu, Mar 27, 2014 at 9:57 PM, Hyun Woo Kim <hyunwoo at fnal.gov<mailto:hyunwoo at fnal.gov>> wrote:

I am testing the data store feature of ON 4.4 in a very simple configuration
and I am getting an error that I can NOT understand.

I have one cluster with
one img type DS (ID 1, DS=fs, T/M=ssh) and
one sys type DS   (ID 100, that I created with ssh TM)

Then I attach one VMHost to this cluster.
According to the manual, the first deployment of VM creates
datastores/100 under /var/lib/one/, right?

But in my case, the first deployed VM is pending
with an error message in sched.log saying,
 Local Datastore 100 in Host 8 filtered out. Not enough capacity.
 No suitable System DS found for Host: 8. Filtering out host.

This VM gets deployed if I manually create this directory;
mkdir -p /var/lib/one/datastores/100

This error sometimes does not happen for a certain VMHost.

So, I would like to understand why datastores/ID is created in some VMHosts
and not in other VMHosts.

if the ON developers could point me at right codes to look at,
or describe what I am doing wrong,
it will be very helpful.

Hyuwoo Kim

The scheduler should take into account the space of /var/lib/one/datastores when ../100 does not exist. Can you send us the output of onehost show -x?

Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org<http://www.opennebula.org/> | cmartin at opennebula.org<mailto:cmartin at opennebula.org> | @OpenNebula<http://twitter.com/opennebula><mailto:cmartin at opennebula.org>

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