[one-users] data store not created in VMHosts

[Hyun Woo Kim]

Thanks very much.
We are already familiar with monitor_ds.sh
and our problem is,  monitor_ds.sh does not report system_DS capacities
until I manually mkdir –p /var/lib/one/datastores/100(our system_ds ID)..
(Note –p option to mkdir).

Thanks again and we look forward to hearing from you
as this issue is one of road blocks that are stopping us from upgrading to ON 4.4.

Hyunwoo
FermiCloud Project.


From: Carlos Martín Sánchez <cmartin at opennebula.org<mailto:cmartin at opennebula.org>>
Date: Friday, March 28, 2014 11:24 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

Hi,

On Fri, Mar 28, 2014 at 5:05 PM, Hyun Woo Kim <hyunwoo at fnal.gov<mailto:hyunwoo at fnal.gov>> wrote:
Hi,
Here is the output.

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


I see... we will take a look into it [1].
In case you want to play around with it, the script is located at /var/lib/one/remotes/im/<driver>/monitor_ds.sh

Best regards

[1] http://dev.opennebula.org/issues/2816

--
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>


Thank you.
Hyunwoo KIM
FermiCloud Project

-bash-4.1$ onehost show -x 4
<HOST>
  <ID>4</ID>
  <NAME>fgtest12</NAME>
  <STATE>2</STATE>
  <IM_MAD>kvm</IM_MAD>
  <VM_MAD>kvm</VM_MAD>
  <VN_MAD>dummy</VN_MAD>
  <LAST_MON_TIME>1396022208</LAST_MON_TIME>
  <CLUSTER_ID>101</CLUSTER_ID>
  <CLUSTER>ipv6</CLUSTER>
  <HOST_SHARE>
    <DISK_USAGE>0</DISK_USAGE>
    <MEM_USAGE>0</MEM_USAGE>
    <CPU_USAGE>0</CPU_USAGE>
    <MAX_DISK>0</MAX_DISK>
    <MAX_MEM>16329064</MAX_MEM>
    <MAX_CPU>400</MAX_CPU>
    <FREE_DISK>0</FREE_DISK>
    <FREE_MEM>15874132</FREE_MEM>
    <FREE_CPU>397</FREE_CPU>
    <USED_DISK>0</USED_DISK>
    <USED_MEM>454932</USED_MEM>
    <USED_CPU>2</USED_CPU>
    <RUNNING_VMS>0</RUNNING_VMS>
    <DATASTORES/>
  </HOST_SHARE>
  <VMS/>
  <TEMPLATE>
    <ARCH><![CDATA[x86_64]]></ARCH>
    <CPUSPEED><![CDATA[2999]]></CPUSPEED>
    <HOSTNAME><![CDATA[fgtest12.fnal.gov<http://fgtest12.fnal.gov>]]></HOSTNAME>
    <HYPERVISOR><![CDATA[kvm]]></HYPERVISOR>
    <MODELNAME><![CDATA[Intel(R) Xeon(R) CPU            5160  @ 3.00GHz]]></MODELNAME>
    <NETRX><![CDATA[122068573]]></NETRX>
    <NETTX><![CDATA[21559876]]></NETTX>
    <VERSION><![CDATA[4.4.0]]></VERSION>
  </TEMPLATE>
</HOST>




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

Hi,

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

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.

Thanks,
Hyuwoo Kim
FermiCloud

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?

Regards
--
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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