[Users] Data Center Non Responsive / Contending
Giorgio Bersano
giorgio.bersano at gmail.com
Tue Mar 4 15:06:13 UTC 2014
2014-03-04 15:38 GMT+01:00 Meital Bourvine <mbourvin at redhat.com>:
> Ok, and is the iscsi functional at the moment?
>
I think so.
For example I see in the DB that the id of my Master Data Domain ,
dt02clu6070, is "a689cb30-743e-4261-bfd1-b8b194dc85db" then
[root at vbox70 ~]# lvs a689cb30-743e-4261-bfd1-b8b194dc85db
LV VG
Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert
4a1be3d8-ac7d-46cf-ae1c-ba154bc9a400
a689cb30-743e-4261-bfd1-b8b194dc85db -wi------- 3,62g
5c8bb733-4b0c-43a9-9471-0fde3d159fb2
a689cb30-743e-4261-bfd1-b8b194dc85db -wi------- 11,00g
7b617ab1-70c1-42ea-9303-ceffac1da72d
a689cb30-743e-4261-bfd1-b8b194dc85db -wi------- 3,88g
e4b86b91-80ec-4bba-8372-10522046ee6b
a689cb30-743e-4261-bfd1-b8b194dc85db -wi------- 9,00g
ids
a689cb30-743e-4261-bfd1-b8b194dc85db -wi-ao---- 128,00m
inbox
a689cb30-743e-4261-bfd1-b8b194dc85db -wi-a----- 128,00m
leases
a689cb30-743e-4261-bfd1-b8b194dc85db -wi-a----- 2,00g
master
a689cb30-743e-4261-bfd1-b8b194dc85db -wi-a----- 1,00g
metadata
a689cb30-743e-4261-bfd1-b8b194dc85db -wi-a----- 512,00m
outbox
a689cb30-743e-4261-bfd1-b8b194dc85db -wi-a----- 128,00m
I can read from the LVs that have the LVM Available bit set:
[root at vbox70 ~]# dd if=/dev/a689cb30-743e-4261-bfd1-b8b194dc85db/ids
bs=1M of=/dev/null
128+0 records in
128+0 records out
134217728 bytes (134 MB) copied, 0,0323692 s, 4,1 GB/s
[root at vbox70 ~]# dd if=/dev/a689cb30-743e-4261-bfd1-b8b194dc85db/ids
bs=1M |od -xc |head -20
0000000 2010 1221 0002 0003 0000 0000 0200 0000
020 ! 022 002 \0 003 \0 \0 \0 \0 \0 \0 002 \0 \0
0000020 0000 0000 0000 0000 0001 0000 0000 0000
\0 \0 \0 \0 \0 \0 \0 \0 001 \0 \0 \0 \0 \0 \0 \0
0000040 0001 0000 0000 0000 0007 0000 0000 0000
001 \0 \0 \0 \0 \0 \0 \0 \a \0 \0 \0 \0 \0 \0 \0
0000060 0000 0000 0000 0000 3661 3938 6263 3033
\0 \0 \0 \0 \0 \0 \0 \0 a 6 8 9 c b 3 0
0000100 372d 3334 2d65 3234 3136 622d 6466 2d31
- 7 4 3 e - 4 2 6 1 - b f d 1 -
0000120 3862 3162 3439 6364 3538 6264 0000 0000
b 8 b 1 9 4 d c 8 5 d b \0 \0 \0 \0
0000140 0000 0000 0000 0000 3638 3438 3966 3932
\0 \0 \0 \0 \0 \0 \0 \0 8 6 8 4 f 9 2 9
0000160 612d 6237 2d66 3834 6564 622d 3830 2d35
- a 7 b f - 4 8 d e - b 0 8 5 -
0000200 6563 6330 6539 3537 6630 6364 762e 6f62
c e 0 c 9 e 7 5 0 f d c . v b o
0000220 3778 2e30 7270 0069 26de 0000 0000 0000
x 7 0 . p r i \0 336 & \0 \0 \0 \0 \0 \0
[root at vbox70 ~]#
Obviously I can't read from LVs that aren't available:
[root at vbox70 ~]# dd
if=/dev/a689cb30-743e-4261-bfd1-b8b194dc85db/4a1be3d8-ac7d-46cf-ae1c-ba154bc9a400
bs=1M of=/dev/null
dd: apertura di
`/dev/a689cb30-743e-4261-bfd1-b8b194dc85db/4a1be3d8-ac7d-46cf-ae1c-ba154bc9a400':
No such file or directory
[root at vbox70 ~]#
But those LV are the VM's disks and I suppose it's availability is
managed by oVirt
> ----- Original Message -----
>> From: "Giorgio Bersano" <giorgio.bersano at gmail.com>
>> To: "Meital Bourvine" <mbourvin at redhat.com>
>> Cc: "users at ovirt.org" <Users at ovirt.org>
>> Sent: Tuesday, March 4, 2014 4:35:07 PM
>> Subject: Re: [Users] Data Center Non Responsive / Contending
>>
>> 2014-03-04 15:23 GMT+01:00 Meital Bourvine <mbourvin at redhat.com>:
>> > Master data domain must be reachable in order for the DC to be up.
>> > Export domain shouldn't affect the dc status.
>> > Are you sure that you've created the export domain as an export domain, and
>> > not as a regular nfs?
>> >
>>
>> Yes, I am.
>>
>> Don't know how to extract this info from DB, but in webadmin, in the
>> storage list, I have these info:
>>
>> Domain Name: nfs02EXPORT
>> Domain Type: Export
>> Storage Type: NFS
>> Format: V1
>> Cross Data-Center Status: Inactive
>> Total Space: [N/A]
>> Free Space: [N/A]
>>
>> ATM my only "Data" Domain is based on iSCSI, no NFS.
>>
>>
>>
>>
>>
>> > ----- Original Message -----
>> >> From: "Giorgio Bersano" <giorgio.bersano at gmail.com>
>> >> To: "Meital Bourvine" <mbourvin at redhat.com>
>> >> Cc: "users at ovirt.org" <Users at ovirt.org>
>> >> Sent: Tuesday, March 4, 2014 4:16:19 PM
>> >> Subject: Re: [Users] Data Center Non Responsive / Contending
>> >>
>> >> 2014-03-04 14:48 GMT+01:00 Meital Bourvine <mbourvin at redhat.com>:
>> >> > StorageDomainDoesNotExist: Storage domain does not exist:
>> >> > (u'1810e5eb-9eb6-4797-ac50-8023a939f312',)
>> >> >
>> >> > What's the output of:
>> >> > lvs
>> >> > vdsClient -s 0 getStorageDomainsList
>> >> >
>> >> > If it exists in the list, please run:
>> >> > vdsClient -s 0 getStorageDomainInfo 1810e5eb-9eb6-4797-ac50-8023a939f312
>> >> >
>> >>
>> >> I'm attaching a compressed archive to avoid mangling by googlemail client.
>> >>
>> >> Indeed the NFS storage with that id is not in the list of available
>> >> storage as it is brought up by a VM that has to be run in this very
>> >> same cluster. Obviously it isn't running at the moment.
>> >>
>> >> You find this in the DB:
>> >>
>> >> COPY storage_domain_static (id, storage, storage_name,
>> >> storage_domain_type, storage_type, storage_domain_format_type,
>> >> _create_date, _update_date, recoverable, last_time_used_as_master,
>> >> storage_description, storage_comment) FROM stdin;
>> >> ...
>> >> 1810e5eb-9eb6-4797-ac50-8023a939f312
>> >> 11d4972d-f227-49ed-b997-f33cf4b2aa26 nfs02EXPORT 3 1
>> >> 0 2014-02-28 18:11:23.17092+01 \N t 0 \N
>> >> \N
>> >> ...
>> >>
>> >> Also, disks for that VM are carved from the Master Data Domain that is
>> >> not available ATM.
>> >>
>> >> To say in other words: I thought that availability of an export domain
>> >> wasn't critical to switch on a Data Center. Am I wrong?
>> >>
>> >> Thanks,
>> >> Giorgio.
>> >>
>>
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