Re: [Users] Data Center Non Responsive / Contending

From: "Giorgio Bersano" <giorgio.bersano(a)gmail.com&gt; To: "Meital Bourvine" <mbourvin(a)redhat.com&gt; Cc: &quot;users(a)ovirt.org&quot; <Users(a)ovirt.org&gt; 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(a)redhat.com&gt;: > 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@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@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@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@vbox70 ~]# Obviously I can't read from LVs that aren't available: [root@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@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(a)gmail.com&gt; >> To: "Meital Bourvine" <mbourvin(a)redhat.com&gt; >> Cc: &quot;users(a)ovirt.org&quot; <Users(a)ovirt.org&gt; >> 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(a)redhat.com&gt;: >> > 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(a)gmail.com&gt; >> >> To: "Meital Bourvine" <mbourvin(a)redhat.com&gt; >> >> Cc: &quot;users(a)ovirt.org&quot; <Users(a)ovirt.org&gt; >> >> 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(a)redhat.com&gt;: >> >> > 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. >> >> >> _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users