[Users] exception occured when adding NFS storage

Thu Jul 11 15:16:24 UTC 2013

It works now. Thank you very much! Hongyi

-----Original Message-----
From: Sandro Bonazzola [mailto:sbonazzo at redhat.com] 
Sent: Thursday, July 11, 2013 10:50 AM
To: Zhang, Hongyi
Cc: users at ovirt.org
Subject: Re: [Users] exception occured when adding NFS storage

Il 11/07/2013 16:37, Zhang, Hongyi ha scritto:
> Hi Sandro,
>
> I do see:
> # cat /etc/selinux/targeted/modules/active/file_contexts.local
> # This file is auto-generated by libsemanage # Do not edit directly.
> /mnt/iso(/.*)?    system_u:object_r:public_content_rw_t:s0
> /mnt/data(/.*)?    system_u:object_r:public_content_rw_t:s0

On wich host?
It's failing creating domain on 128.224.147.229:/mnt/data.

You must be sure that the IP address is correct.

You need to be sure that on 128.224.147.229 /mnt/data is 775, owned by 36:36, and selinux allow public content.
Then you need to be sure that you can mount 128.224.147.229:/mnt/data locally.

On the host running engine try:
mkdir /tmp/test
mount -t nfs 128.224.147.229:/mnt/data /tmp/test Then if it works you must ensure it's writable by vdsm:kvm user:

sudo -u vdsm -g kvm mkdir /tmp/test/writable sudo -u vdsm -g kvm touch /tmp/test/writable/file

If those commands are working, you should be able to create the domain.

Remember to cleanup after the test.

> # getenforce
> Permissive
>
> But I still failed to create a storage domain on the ovirt.engine side and got the same exception errors, and also vdsm is idle during the creation of storage domain.
>
> Here is the setup for ovirt.engine:
> oVirt Engine will be installed using the following configuration:
> =================================================================
> override-httpd-config:         yes
> http-port:                     80
> https-port:                    443
> host-fqdn:                     ovirt.engine
> auth-pass:                     ********
> org-name:                      ovirt
> application-mode:              both
> default-dc-type:               NFS
> db-remote-install:             local
> db-local-pass:                 ********
> nfs-mp:                        /mnt/iso
> config-nfs:                    yes
> override-firewall:             IPTables
> Proceed with the configuration listed above? (yes|no): yes
>
> Thanks,
> Hongyi
>
> From: Sandro Bonazzola [mailto:sbonazzo at redhat.com]
> Sent: Thursday, July 11, 2013 2:17 AM
> To: Zhang, Hongyi
> Cc: users at ovirt.org
> Subject: Re: [Users] exception occured when adding NFS storage
>
> Il 10/07/2013 18:19, Zhang, Hongyi ha scritto:
>
> 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 into 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 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 the Up status.
>
>
>
> 2.       On the ovirt.engine server, I did the following before creating the storage:
>
>
>
> mkdir -p /mnt/data
>
>
>
> chown -R 36:36 /mnt/data
>
>
>
> Add the following line to /etc/sysconfig/nfs:
>
>
>
>     NFS4_SUPPORT="no"
>
>
>
> Add the following line to /etc/exports:
>
>
>
>    /nmt/data  
> *(rw,sync,no_subtree_check,all_squash,anonuid=36,anongid=36)
>
>
>
> systemctl restart nfs-server.service
>
>
> Well, exports has a typo error: /nmt/data instead of /mnt/data If that 
> it's not enough, If you're using selinux ensure that /mnt/data has the correct context:
>
> /etc/selinux/targeted/modules/active/file_contexts.local:
> /mnt/data(/.*)?    system_u:object_r:public_content_rw_t:s0
>
>
>
>
>
>
>
>
>
>
>
> 3.       Back to the Default data center, clicked the Guide Me icon to start 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 add 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.ConnectStorageServerVDSComm
> and] (ajp--127.0.0.1-8702-1) [41c282da] FINISH, 
> ConnectStorageServerVDSCommand, return: 
> {00000000-0000-0000-0000-000000000000=100}, log id: 1bca7819
>
>
>
> 2013-07-10 11:37:51,303 ERROR 
> [org.ovirt.engine.core.bll.storage.NFSStorageHelper] 
> (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.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_CONNECTION_NOT_EXIST
>
>
>
> 2013-07-10 11:37:51,483 INFO  
> [org.ovirt.engine.core.bll.storage.RemoveStorageServerConnectionComman
> d] (ajp--127.0.0.1-8702-1) [2bd59836] Running command: 
> RemoveStorageServerConnectionCommand internal: false. Entities 
> affected :  ID: aaa00000-0000-0000-0000-123456789aaa Type: System
>
>
>
> 2013-07-10 11:37:51,489 INFO  
> [org.ovirt.engine.core.vdsbroker.vdsbroker.DisconnectStorageServerVDSC
> ommand] (ajp--127.0.0.1-8702-1) [2bd59836] START, 
> DisconnectStorageServerVDSCommand(HostName = ovirt.node, HostId = 
> 8e47a267-98a9-4184-a92e-26587adae6c4, storagePoolId = 
> 00000000-0000-0000-0000-000000000000, storageType = NFS, 
> connectionList = [{ id: null, connection: 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 is ovirt.host:/mnt/data), then everything is okay. Not sure why failed on the ovirt.engine side.
>
>
>
>
>
>
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>
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>
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>
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>
>
>
>
> --
>
> Sandro Bonazzola
>
> Better technology. Faster innovation. Powered by community collaboration.
>
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>

--
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