[Users] exception occured when adding NFS storage

10 Jul 2013

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Hi,

I started to learn the oVirt by following the oVirt Quick Start Guide.

I used one server as the ovirt.engine, and another server as the ovirt.host=
. Both servers run Fedora 18.

After executing the command "engine-setup" in the ovirt.engine, I can get i=
nto the admin portal to start the configuration of host, storage, etc. Here=
 was what I am doing:

1.       In the Default data center, I clicked  the Guide Me icon. The firs=
t thing is to configure the host. After waiting for 4-5 minutes, I saw the =
host ovirt.host is displayed under the Host tab with the Up status.

2.       On the ovirt.engine server, I did the following before creating th=
e storage:

mkdir -p /mnt/data

chown -R 36:36 /mnt/data

Add the following line to /etc/sysconfig/nfs:

    NFS4_SUPPORT=3D"no"

Add the following line to /etc/exports:

   /nmt/data  *(rw,sync,no_subtree_check,all_squash,anonuid=3D36,anongid=3D=
36)

systemctl restart nfs-server.service

3.       Back to the Default data center, clicked the Guide Me icon to star=
t the configuration of new storage.

4.       On the New Storage dialog, set Name field to be NFS-Share, and set=
 the Export Path field to be ovirt.engine:/mnt/data. Then click OK

After couple of minutes, I saw the error window popped up: Error: Cannot ad=
d Storage. Internal error, Storage Connection doesn't exist.
...
From the /var/log/ ovirt-engine/engine.log, I can see:
2013-07-10 11:37:51,300 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.Co=
nnectStorageServerVDSCommand] (ajp--127.0.0.1-8702-1) [41c282da] FINISH, Co=
nnectStorageServerVDSCommand, return: {00000000-0000-0000-0000-000000000000=
=3D100}, log id: 1bca7819

2013-07-10 11:37:51,303 ERROR [org.ovirt.engine.core.bll.storage.NFSStorage=
Helper] (ajp--127.0.0.1-8702-1) [41c282da] The connection with details 128.=
224.147.229:/mnt/data failed because of error code 100 and error message is=
: generalexception

2013-07-10 11:37:51,382 WARN  [org.ovirt.engine.core.bll.storage.AddNFSStor=
ageDomainCommand] (ajp--127.0.0.1-8702-6) [2612bf14] CanDoAction of action =
AddNFSStorageDomain failed. Reasons:VAR__TYPE__STORAGE__DOMAIN,VAR__ACTION_=
_ADD,ACTION_TYPE_FAILED_STORAGE_CONNECTION_NOT_EXIST

2013-07-10 11:37:51,483 INFO  [org.ovirt.engine.core.bll.storage.RemoveStor=
ageServerConnectionCommand] (ajp--127.0.0.1-8702-1) [2bd59836] Running comm=
and: RemoveStorageServerConnectionCommand internal: false. Entities affecte=
d :  ID: aaa00000-0000-0000-0000-123456789aaa Type: System

2013-07-10 11:37:51,489 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.Di=
sconnectStorageServerVDSCommand] (ajp--127.0.0.1-8702-1) [2bd59836] START, =
DisconnectStorageServerVDSCommand(HostName =3D ovirt.node, HostId =3D 8e47a=
267-98a9-4184-a92e-26587adae6c4, storagePoolId =3D 00000000-0000-0000-0000-=
000000000000, storageType =3D NFS, connectionList =3D [{ id: null, connecti=
on: 128.224.147.229:/mnt/data, iqn: null, vfsType: null, mountOptions: null=
, nfsVersion: null, nfsRetrans: null, nfsTimeo: null };]), log id: 2f9800d

Please let me know what I was doing wrong.

Thanks,
Hongyi

P.S. If I create the NFS domain in the ovirt.host side (i.e., Export Path i=
s ovirt.host:/mnt/data), then everything is okay. Not sure why failed on th=
e ovirt.engine side.

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<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I started to learn the oVirt by following the oVirt =
Quick Start Guide.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I used one server as the ovirt.engine, and another s=
erver as the ovirt.host. Both servers run Fedora 18.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">After executing the command “engine-setup̶=
1; in the ovirt.engine, I can get into the admin portal to start the config=
uration of host, storage, etc. Here was what I am doing:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">1.<span style=
=3D"font:7.0pt "Times New Roman"">     &=
nbsp;
</span></span><![endif]>In the Default data center, I clicked  the Gui=
de Me icon. The first thing is to configure the host. After waiting for 4-5=
 minutes, I saw the host ovirt.host is displayed under the Host tab with th=
e Up status.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">2.<span style=
=3D"font:7.0pt "Times New Roman"">     &=
nbsp;
</span></span><![endif]>On the ovirt.engine server, I did the following bef=
ore creating the storage:<o:p></o:p></p>
<p class=3D"MsoListParagraph">mkdir –p /mnt/data<o:p></o:p></p>
<p class=3D"MsoListParagraph">chown –R 36:36 /mnt/data<o:p></o:p></p>
<p class=3D"MsoListParagraph">Add the following line to /etc/sysconfig/nfs:=
<o:p></o:p></p>
<p class=3D"MsoListParagraph">    NFS4_SUPPORT=3D”no&#=
8221;<o:p></o:p></p>
<p class=3D"MsoListParagraph">Add the following line to /etc/exports:<o:p><=
/o:p></p>
<p class=3D"MsoListParagraph">   /nmt/data  *(rw,sync,no_sub=
tree_check,all_squash,anonuid=3D36,anongid=3D36)<o:p></o:p></p>
<p class=3D"MsoListParagraph">systemctl restart nfs-server.service<o:p></o:=
p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">3.<span style=
=3D"font:7.0pt "Times New Roman"">     &=
nbsp;
</span></span><![endif]>Back to the Default data center, clicked the Guide =
Me icon to start the configuration of new storage.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">4.<span style=
=3D"font:7.0pt "Times New Roman"">     &=
nbsp;
</span></span><![endif]>On the New Storage dialog, set Name field to be NFS=
-Share, and set the Export Path field to be ovirt.engine:/mnt/data. Then cl=
ick OK<o:p></o:p></p>
<p class=3D"MsoListParagraph">After couple of minutes, I saw the error wind=
ow popped up:
<span style=3D"color:red">Error: Cannot add Storage. Internal error, Storag=
e Connection doesn't exist.</span><o:p></o:p></p>
<p class=3D"MsoListParagraph"><o:p> </o:p></p>
<p class=3D"MsoListParagraph">From the /var/log/ ovirt-engine/engine.log, I=
 can see:<o:p></o:p></p>
<p class=3D"MsoListParagraph">2013-07-10 11:37:51,300 INFO  [org.ovirt=
.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand] (ajp--127.=
0.0.1-8702-1) [41c282da] FINISH, ConnectStorageServerVDSCommand, return: {0=
0000000-0000-0000-0000-000000000000=3D100},
 log id: 1bca7819<o:p></o:p></p>
<p class=3D"MsoListParagraph">2013-07-10 11:37:51,303 <span style=3D"color:=
red">ERROR</span> [org.ovirt.engine.core.bll.storage.NFSStorageHelper] (ajp=
--127.0.0.1-8702-1) [41c282da]
<span style=3D"color:red">The connection with details 128.224.147.229:/mnt/=
data failed because of error code 100 and error message is: generalexceptio=
n<o:p></o:p></span></p>
<p class=3D"MsoListParagraph">2013-07-10 11:37:51,382 WARN  [org.ovirt=
.engine.core.bll.storage.AddNFSStorageDomainCommand] (ajp--127.0.0.1-8702-6=
) [2612bf14] CanDoAction of action AddNFSStorageDomain failed. Reasons:VAR_=
_TYPE__STORAGE__DOMAIN,VAR__ACTION__ADD,ACTION_TYPE_FAILED_STORAGE_CONNECTI=
ON_NOT_EXIST<o:p></o:p></p>
<p class=3D"MsoListParagraph">2013-07-10 11:37:51,483 INFO  [org.ovirt=
.engine.core.bll.storage.RemoveStorageServerConnectionCommand] (ajp--127.0.=
0.1-8702-1) [2bd59836] Running command: RemoveStorageServerConnectionComman=
d internal: false. Entities affected : 
 ID: aaa00000-0000-0000-0000-123456789aaa Type: System<o:p></o:p></p>
<p class=3D"MsoListParagraph">2013-07-10 11:37:51,489 INFO  [org.ovirt=
.engine.core.vdsbroker.vdsbroker.DisconnectStorageServerVDSCommand] (ajp--1=
27.0.0.1-8702-1) [2bd59836] START, DisconnectStorageServerVDSCommand(HostNa=
me =3D ovirt.node, HostId =3D 8e47a267-98a9-4184-a92e-26587adae6c4,
 storagePoolId =3D 00000000-0000-0000-0000-000000000000, storageType =3D NF=
S, connectionList =3D [{ id: null, connection: 128.224.147.229:/mnt/data, i=
qn: null, vfsType: null, mountOptions: null, nfsVersion: null, nfsRetrans: =
null, nfsTimeo: null };]), log id: 2f9800d
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Please let me know what I was doing wrong.<o:p></o:p=
...
</p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Hongyi<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">P.S. If I create the NFS domain in the ovirt.host si=
de (i.e., Export Path is ovirt.host:/mnt/data), then everything is okay. No=
t sure why failed on the ovirt.engine side.<o:p></o:p></p>
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Zhang, Hongyi

Itamar Heim

Zhang, Hongyi

Sandro Bonazzola

Zhang, Hongyi

Sandro Bonazzola

Zhang, Hongyi

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