[Users] Data Center Non Responsive / Contending
Liron Aravot
laravot at redhat.com
Tue Mar 4 15:11:36 UTC 2014
----- 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 5:06:13 PM
> Subject: Re: [Users] Data Center Non Responsive / Contending
>
> 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
>
please see my previous mail on this thread, the issue seems to be with the connectivity to the nfs path, not the iscsi.
2014-03-04 13:15:41,167 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-27) [1141851d] Correlation
ID: null, Call Stack: null, Custom Event ID: -1, Message: Failed to connect Host vbox70 to the Storage Domains nfs02EXPORT.
>
>
> > ----- 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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