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Katello integration
by Nathanaël Blanchet 08 Jun '15

08 Jun '15

Hello i read your wiki page about katello but i can't see thé projection as a target on the Google sheet https://docs.google.com/spreadsheets/d/1vUwi0y54SV7nYZC1DXo_hLPyG7hvtWDHfa6… Is this always targeted tout 3.6? Screenshot tell me that web is already ready.

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Re: [ovirt-users] HA storage based on two nodes with one point of failure
by Юрий Полторацкий 08 Jun '15

08 Jun '15

This is a multi-part message in MIME format. --------------070106010204050704030701 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hi, I have made a lab with a config listed below and have got unexpected result. Someone, tell me, please, where did I go wrong? I am testing oVirt. Data Center has two clusters: the first as a computing with three nodes (node1, node2, node3); the second as a storage (node5, node6) based on glusterfs (replica 2). I want the storage to be HA. I have read here <https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Admini…> next: For a replicated volume with two nodes and one brick on each machine, if the server-side quorum is enabled and one of the nodes goes offline, the other node will also be taken offline because of the quorum configuration. As a result, the high availability provided by the replication is ineffective. To prevent this situation, a dummy node can be added to the trusted storage pool which does not contain any bricks. This ensures that even if one of the nodes which contains data goes offline, the other node will remain online. Note that if the dummy node and one of the data nodes goes offline, the brick on other node will be also be taken offline, and will result in data unavailability. So, I have added my "Engine" (not self-hosted) as a dummy node without a brick and have configured quorum as listed below: cluster.quorum-type: fixed cluster.quorum-count: 1 cluster.server-quorum-type: server cluster.server-quorum-ratio: 51% Then, I've run a VM and have dropped the network link from node6, after one a hour have switched back the link and after a while have got a split-brain. But why? No one could write to the brick on node6: the VM was running on node3 and node1 was SPM. Gluster's log from node6: Июн 07 15:35:06 node6.virt.local etc-glusterfs-glusterd.vol[28491]: [2015-06-07 12:35:06.106270] C [MSGID: 106002] [glusterd-server-quorum.c:356:glusterd_do_volume_quorum_action] 0-management: Server quorum lost for volume vol3. Stopping local bricks. Июн 07 16:30:06 node6.virt.local etc-glusterfs-glusterd.vol[28491]: [2015-06-07 13:30:06.261505] C [MSGID: 106003] [glusterd-server-quorum.c:351:glusterd_do_volume_quorum_action] 0-management: Server quorum regained for volume vol3. Starting local bricks. gluster> volume heal vol3 info Brick node5.virt.local:/storage/brick12/ /5d0bb2f3-f903-4349-b6a5-25b549affe5f/dom_md/ids - Is in split-brain Number of entries: 1 Brick node6.virt.local:/storage/brick13/ /5d0bb2f3-f903-4349-b6a5-25b549affe5f/dom_md/ids - Is in split-brain Number of entries: 1 gluster> volume info vol3 Volume Name: vol3 Type: Replicate Volume ID: 69ba8c68-6593-41ca-b1d9-40b3be50ac80 Status: Started Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: node5.virt.local:/storage/brick12 Brick2: node6.virt.local:/storage/brick13 Options Reconfigured: storage.owner-gid: 36 storage.owner-uid: 36 cluster.server-quorum-type: server cluster.quorum-type: fixed network.remote-dio: enable cluster.eager-lock: enable performance.stat-prefetch: off performance.io-cache: off performance.read-ahead: off performance.quick-read: off auth.allow: * user.cifs: disable nfs.disable: on performance.readdir-ahead: on cluster.quorum-count: 1 cluster.server-quorum-ratio: 51% 06.06.2015 12:09, Юрий Полторацкий пишет: > Hi, > > I want to build a HA storage based on two servers. I want that if one > goes down, my storage will be available in RW mode. > > If I will use replica 2, then split-brain can occur. To avoid this I > would use a quorum. As I understand correctly, I can use quorum on a > client side, on a server side, or on both. I want to add a dummy node > without a brick and make such config: > > cluster.quorum-type: fixed > cluster.quorum-count: 1 > cluster.server-quorum-type: server > cluster.server-quorum-ratio: 51% > > I expect that client will have access in RW mode until one brick > alive. On the other side if server's quorum will not meet, then bricks > will be RO. > > Say, HOST1 with a brick BRICK1, HOST2 with a brick BRICK2, and HOST3 > without a brick. > > Once HOST1 lose a network connection, than on this node server quorum > will not meet and the brick BRICK1 will not be able for writing. But > on HOST2 there is no problem with server quorum (HOST2 + HOST3 > 51%) > and that's why BRICK2 still accessible for writing. With client's > quorum there is no problem also - one brick is alive, so client can > write on it. > > I have made a lab using KVM on my desktop and it seems to be worked > well and as expected. > > The main question is: > Can I use such a storage for production? > > Thanks. > --------------070106010204050704030701 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi,<br> <br> I have made a lab with a config listed below and have got unexpected result. Someone, tell me, please, where did I go wrong?<br> <br> I am testing oVirt. Data Center has two clusters: the first as a computing with three nodes (node1, node2, node3); the second as a storage (node5, node6) based on glusterfs (replica 2).<br> <br> I want the storage to be HA. I have read <a href="https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Admini…">here</a> next:<br> <tt>For a replicated volume with two nodes and one brick on each machine, if the server-side quorum is enabled and one of the nodes goes offline, the other node will also be taken offline because of the quorum configuration. As a result, the high availability provided by the replication is ineffective. To prevent this situation, a dummy node can be added to the trusted storage pool which does not contain any bricks. This ensures that even if one of the nodes which contains data goes offline, the other node will remain online. Note that if the dummy node and one of the data nodes goes offline, the brick on other node will be also be taken offline, and will result in data unavailability. </tt><br> <br> So, I have added my "Engine" (not self-hosted) as a dummy node without a brick and have configured quorum as listed below:<br> <tt>cluster.quorum-type: fixed</tt><tt><br> </tt><tt>cluster.quorum-count: 1</tt><tt><br> </tt><tt>cluster.server-quorum-type: server</tt><tt><br> </tt><tt>cluster.server-quorum-ratio: 51%</tt><br> <br> <br> Then, I've run a VM and have dropped the network link from node6, after one a hour have switched back the link and after a while have got a split-brain. But why? No one could write to the brick on node6: the VM was running on node3 and node1 was SPM.<br> <br> Gluster's log from node6:<br> <tt>Июн 07 15:35:06 node6.virt.local etc-glusterfs-glusterd.vol[28491]: [2015-06-07 12:35:06.106270] C [MSGID: 106002] [glusterd-server-quorum.c:356:glusterd_do_volume_quorum_action] 0-management: Server quorum lost for volume vol3. Stopping local bricks.</tt><tt><br> </tt><tt>Июн 07 16:30:06 node6.virt.local etc-glusterfs-glusterd.vol[28491]: [2015-06-07 13:30:06.261505] C [MSGID: 106003] [glusterd-server-quorum.c:351:glusterd_do_volume_quorum_action] 0-management: Server quorum regained for volume vol3. Starting local bricks.</tt><br> <tt><br> <br> </tt><tt>gluster> volume heal vol3 info </tt><tt><br> </tt><tt>Brick node5.virt.local:/storage/brick12/</tt><tt><br> </tt><tt>/5d0bb2f3-f903-4349-b6a5-25b549affe5f/dom_md/ids - Is in split-brain</tt><tt><br> </tt><tt><br> </tt><tt>Number of entries: 1</tt><tt><br> </tt><tt><br> </tt><tt>Brick node6.virt.local:/storage/brick13/</tt><tt><br> </tt><tt>/5d0bb2f3-f903-4349-b6a5-25b549affe5f/dom_md/ids - Is in split-brain</tt><tt><br> </tt><tt><br> </tt><tt>Number of entries: 1</tt><br> <br> <br> <tt>gluster> volume info vol3</tt><tt><br> </tt><tt> </tt><tt><br> </tt><tt>Volume Name: vol3</tt><tt><br> </tt><tt>Type: Replicate</tt><tt><br> </tt><tt>Volume ID: 69ba8c68-6593-41ca-b1d9-40b3be50ac80</tt><tt><br> </tt><tt>Status: Started</tt><tt><br> </tt><tt>Number of Bricks: 1 x 2 = 2</tt><tt><br> </tt><tt>Transport-type: tcp</tt><tt><br> </tt><tt>Bricks:</tt><tt><br> </tt><tt>Brick1: node5.virt.local:/storage/brick12</tt><tt><br> </tt><tt>Brick2: node6.virt.local:/storage/brick13</tt><tt><br> </tt><tt>Options Reconfigured:</tt><tt><br> </tt><tt>storage.owner-gid: 36</tt><tt><br> </tt><tt>storage.owner-uid: 36</tt><tt><br> </tt><tt>cluster.server-quorum-type: server</tt><tt><br> </tt><tt>cluster.quorum-type: fixed</tt><tt><br> </tt><tt>network.remote-dio: enable</tt><tt><br> </tt><tt>cluster.eager-lock: enable</tt><tt><br> </tt><tt>performance.stat-prefetch: off</tt><tt><br> </tt><tt>performance.io-cache: off</tt><tt><br> </tt><tt>performance.read-ahead: off</tt><tt><br> </tt><tt>performance.quick-read: off</tt><tt><br> </tt><tt>auth.allow: *</tt><tt><br> </tt><tt>user.cifs: disable</tt><tt><br> </tt><tt>nfs.disable: on</tt><tt><br> </tt><tt>performance.readdir-ahead: on</tt><tt><br> </tt><tt>cluster.quorum-count: 1</tt><tt><br> </tt><tt>cluster.server-quorum-ratio: 51%</tt><br> <br> <br> <br> <div class="moz-cite-prefix">06.06.2015 12:09, Юрий Полторацкий пишет:<br> </div> <blockquote cite="mid:CANgBB_sWBZwDh3yaAJV=ETLqrJyYxT9_EfRjnjMHF-1NVbevqw@mail.gmail.com" type="cite"> <div dir="ltr"> <div> <div> <div> <div> <div> <div> <div> <div>Hi,<br> <br> </div> I want to build a HA storage based on two servers. I want that if one goes down, my storage will be available in RW mode.<br> <br> </div> If I will use replica 2, then split-brain can occur. To avoid this I would use a quorum. As I understand correctly, I can use quorum on a client side, on a server side, or on both. I want to add a dummy node without a brick and make such config:<br> </div> <br> cluster.quorum-type: fixed<br> cluster.quorum-count: 1<br> cluster.server-quorum-type: server<br> cluster.server-quorum-ratio: 51%<br> <br> </div> I expect that client will have access in RW mode until one brick alive. On the other side if server's quorum will not meet, then bricks will be RO. <br> <br> Say, HOST1 with a brick BRICK1, HOST2 with a brick BRICK2, and HOST3 without a brick.<br> <br> Once HOST1 lose a network connection, than on this node server quorum will not meet and the brick BRICK1 will not be able for writing. But on HOST2 there is no problem with server quorum (HOST2 + HOST3 > 51%) and that's why BRICK2 still accessible for writing. With client's quorum there is no problem also - one brick is alive, so client can write on it.<br> <br> </div> I have made a lab using KVM on my desktop and it seems to be worked well and as expected.<br> <br> </div> The main question is:<br> </div> Can I use such a storage for production?<br> <br> </div> Thanks. <br> <div> <div> <div> <div> <div><br> </div> </div> </div> </div> </div> </div> </blockquote> <br> </body> </html> --------------070106010204050704030701--

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Why not bond0
by 肖力 08 Jun '15

08 Jun '15

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[Centos7.1] [Ovirt 3.5.2] hosted engine, is there a way to resume deploy
by wodel youchi 07 Jun '15

07 Jun '15

Hi, I tried to deploy ovirt hosted engine 3.5.2 on a Centos7.1 I messed up things with datacenter naming, I used something else than Default, and the result was that, after the DB welcome message between the engine and the hypervisor, there was in error (I didn't catch it I was using screen command over ssh without log :-( ), and the last steps were not done, so I ended up an engine up but without the hypervisor being registred. Is there a way to force the registration again, or will I have to deploy from the beginning and reinstall the VM engine? thanks.

2 1

Remove default cluster
by Nicolas Ecarnot 07 Jun '15

07 Jun '15

Hello, I finished upgrading a 3.5.1 DC that contained some CentOS 6.6 hosts. For that, I added a second cluster in which I progressively moved my upgraded hosts into CentOS 7. Now my old cluster is empty, and the new one contains my CentOS 7 hosts. I'd like to get rid of the old empty cluster, but when trying to delete it, oVirt explains that some template are still used in this cluster. Actually, I have only the default blank template and another custom one. Once the custom one has easily been moved, I have no way to move the blank one because every action is greyd out. I guess no one will tell me to play with psql... :) -- Nicolas ECARNOT

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Multiple NICs on hosted engine?
by Chris Adams 06 Jun '15

06 Jun '15

I have installed the first node of a new oVirt 3.5 setup with a hosted engine VM. I have multiple networks: one public-accessible and one private (with storage, iDRAC/IPMI, etc.). I set the engine VM up on the public LAN, but now realize that it can't access the power control. I tried to add a second NIC to the engine VM through the web interface, but of course that doesn't work (because it isn't really managed there). How can I add a second NIC to the hosted engine VM? -- Chris Adams <cma(a)cmadams.net>

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Re: [ovirt-users] ovirt vm disk space not release
by smiling dream 06 Jun '15

06 Jun '15

Thanks for you reply . So if I understand you correctly you want to reduce the space a thin provision disk takes up on the NFS share because you deleted files within the VM? Yes Is there any others way to reclaim disk space , coz i have bulks of vm under thin provision manual process kind of impossible . As i know Vmware have this kind of facility to reclaim from thin provision . On Fri, Jun 5, 2015 at 11:48 AM, Alex McWhirter <alexmcwhirter(a)triadic.us> wrote: > Sorry, I must have misunderstood. > > So if I understand you correctly you want to reduce the space a thin > provision disk takes up on the NFS share because you deleted files within > the VM? > > I'm pretty sure that thin provisioned disks can only grow. Once they have > been expanded there's no way to reclaim that space on the NFS share. > > The only thing I think you can do is create a new thin provisioned disk > and copy the old data over at the file level, not the block level. > Afterwards you could delete the original disk. > > Sent from my iPhone > > On Jun 5, 2015, at 1:19 AM, smiling dream <smiling.dream(a)gmail.com> wrote: > > I mean vm internal disk space . > All of VM under thin provision . If i delete files and free space from VM > still ovirt stroage showing vm disk space is used . How to reclaim disk > space from guest VM . > > On Fri, Jun 5, 2015 at 11:14 AM, Alex McWhirter <alexmcwhirter(a)triadic.us> > wrote: > >> From what I understand, ovirt simply reports the available storage that >> the NFS server says it is free. Ovirt itself doesn't control the storage. >> >> Under the storage tab click on the storage domain you're having issues >> with and check to see if the images themselves have been deleted or if they >> are still there. When you delete a virtual machine you have the option to >> delete the virtual image as well. >> >> If a virtual machine has more than one image then I'm not sure how this >> is handled as I've only used single images for virtual machines. Any >> additional storage I need I handle over NFS directly to the virtual machine. >> >> Perhaps ovirt doesn't automatically delete secondary images? Either way >> you should be able to delete them manually and reclaim space. >> >> Sent from my iPhone >> >> > On Jun 5, 2015, at 12:39 AM, smiling dream <smiling.dream(a)gmail.com> >> wrote: >> > >> > I have ovirt 3.5.1 installed with VDSM 4.16.14 EL6 node and NFS as >> storage . In my infrastructure i have multiple instance of centos / windows >> vm under ovirt and once guest vm disk space is used ovirt is not release >> guest vm disk space after delete . >> > Looking for help . >> > >> > Regards >> > Suvro >> > _______________________________________________ >> > Users mailing list >> > Users(a)ovirt.org >> > http://lists.ovirt.org/mailman/listinfo/users >> > >

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[ANN] oVirt 3.5.3 Third Release Candidate is now available for testing
by Sandro Bonazzola 05 Jun '15

05 Jun '15

The oVirt team is pleased to announce that the 3.5.3 Third Release Candidate is now available for testing as of June 5th 2015. The release candidate is available now for Fedora 20, Red Hat Enterprise Linux 6.6, CentOS 6.6 (or similar) and Red Hat Enterprise Linux 7.1, CentOS 7.1 (or similar). This release of oVirt includes numerous bug fixes and one CVE fix for the VENOM Vulnerability. See the release notes [1] for a list of the new features and bugs fixed. Please refer to release notes [1] for Installation / Upgrade instructions. A new oVirt Live ISO is already available as well[2]. Please note that mirrors[3] may need usually one day before being synchronized. Please refer to the release notes for known issues in this release. [1] http://www.ovirt.org/OVirt_3.5.3_Release_Notes [2] http://resources.ovirt.org/pub/ovirt-3.5-pre/iso/ [3] http://www.ovirt.org/Repository_mirrors#Current_mirrors -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Re: [ovirt-users] ovirt vm disk space not release
by smiling dream 05 Jun '15

05 Jun '15

I mean vm internal disk space . All of VM under thin provision . If i delete files and free space from VM still ovirt stroage showing vm disk space is used . How to reclaim disk space from guest VM . On Fri, Jun 5, 2015 at 11:19 AM, smiling dream <smiling.dream(a)gmail.com> wrote: > I mean vm internal disk space . > All of VM under thin provision . If i delete files and free space from VM > still ovirt stroage showing vm disk space is used . How to reclaim disk > space from guest VM . > > On Fri, Jun 5, 2015 at 11:14 AM, Alex McWhirter <alexmcwhirter(a)triadic.us> > wrote: > >> From what I understand, ovirt simply reports the available storage that >> the NFS server says it is free. Ovirt itself doesn't control the storage. >> >> Under the storage tab click on the storage domain you're having issues >> with and check to see if the images themselves have been deleted or if they >> are still there. When you delete a virtual machine you have the option to >> delete the virtual image as well. >> >> If a virtual machine has more than one image then I'm not sure how this >> is handled as I've only used single images for virtual machines. Any >> additional storage I need I handle over NFS directly to the virtual machine. >> >> Perhaps ovirt doesn't automatically delete secondary images? Either way >> you should be able to delete them manually and reclaim space. >> >> Sent from my iPhone >> >> > On Jun 5, 2015, at 12:39 AM, smiling dream <smiling.dream(a)gmail.com> >> wrote: >> > >> > I have ovirt 3.5.1 installed with VDSM 4.16.14 EL6 node and NFS as >> storage . In my infrastructure i have multiple instance of centos / windows >> vm under ovirt and once guest vm disk space is used ovirt is not release >> guest vm disk space after delete . >> > Looking for help . >> > >> > Regards >> > Suvro >> > _______________________________________________ >> > Users mailing list >> > Users(a)ovirt.org >> > http://lists.ovirt.org/mailman/listinfo/users >> > >

1 0

ovirt vm disk space not release
by smiling dream 05 Jun '15

05 Jun '15

I have ovirt 3.5.1 installed with VDSM 4.16.14 EL6 node and NFS as storage . In my infrastructure i have multiple instance of centos / windows vm under ovirt and once guest vm disk space is used ovirt is not release guest vm disk space after delete . Looking for help . Regards Suvro

1 0