- Users - oVirt List Archives

Chinese oVirt community
by Yedidyah Bar David 31 Oct '16

31 Oct '16

Hi all, Recently, more and more questions are posted to users(a)ovirt.org in what seems like a result of a google translation of Chinese to English. These are usually hard to understand, and I expect the replies are also hard to understand. A recent example is [1]. Two years ago there was a discussion [2] about this on users(a)ovirt.org. Now, when searching, I find: 1. There seems to have been a domain ovirt-china.org , but it's dead now (no info about it in dns or whois). The only version of it I can find on archive.org is [3]. 2. There is a github org [4]. 3. There is a google group [5] , but it requires registration to view (and I didn't try to register). If there is an active Chinese community of oVirt users, perhaps we should give it more publicity, to make it easier to find. Otherwise, perhaps we can help by creating a list on lists.ovirt.org , or something like that. Best regards, [1] http://lists.ovirt.org/pipermail/users/2016-October/043732.html [2] http://lists.ovirt.org/pipermail/users/2014-May/024585.html http://lists.ovirt.org/pipermail/users/2014-May/024862.html http://lists.ovirt.org/pipermail/users/2014-May/024668.html [3] http://web.archive.org/web/20141203033820/http://www.ovirt-china.org/ [4] https://github.com/ovirt-china [5] https://groups.google.com/forum/#!forum/ovirt-china -- Didi

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ovirt homeserver
by david caughey 31 Oct '16

31 Oct '16

Hi, I'm building a homeserver to run ovirt and wanted to get opinions on the best approach. The server will be used as a test/studybed for ovirt/kvm/vcloud/openstack/ceph. The server will be based around a Xeon E5 10 core with 128GB ram. Option 1: Build server with CentOS 7.2 and deploy ovirt directly on top. Option 2: Build server with CentOS 7.2 and deploy multiple ovirt instances on top of KVM. Which will be the most stable versatile method? If a GPU is used as a passthrough device can it be used on several vm's or is it restricted to 1 vm? If 2 GPU's are used can 1 be used as a dedicated passthrough to 1 vm and the other shared between the remaining vm's? Is CentOS/RH the best platform for ovirt? Is it okay/advisable to load the latest kernel, (4.8 ish), on to CentOS before installing ovirt? Any and all comments/advice welcome, David

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100% disk utilization on Hosted Engine
by Anantha Raghava 31 Oct '16

31 Oct '16

This is a multi-part message in MIME format. --------------10436485D205AA7FD0A15C25 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, I have hit a unique problem. Using oVirt 4.0.2.7-1.el7.centos since last one month and I have hit a unique problem. The Engine is reporting that Disk space allocated to Hosted engine is full and is not allowing to login to engine's console to clear some files as well. When I try to add additional storage to Hosted engine, engine admin portal reports that as Engine VM is not managed by oVirt Engine, it cannot extend the storage. Now the questions are: 1. Is it that enabling advanced DWH on the engine host is the root cause for 100GB of disk getting filled in about 1 month? 2. How do we clear the disk of some unwanted files and extend the space? 3. How do we reset the DWH database to basic? Note: CentOS 7.2 is not even allowing us to login to console to do any action. Booting the Hosted Engine VM with Live CD etc., looks like is ruled out in this case. -- Thanks & Regards, Anantha Raghava eXza Technology Consulting & Services Do not print this e-mail unless required. Save Paper & trees. --------------10436485D205AA7FD0A15C25 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hi, I have hit a unique problem. Using oVirt 4.0.2.7-1.el7.centos since last one month and I have hit a unique problem. The Engine is reporting that Disk space allocated to Hosted engine is full and is not allowing to login to engine's console to clear some files as well. When I try to add additional storage to Hosted engine, engine admin portal reports that as Engine VM is not managed by oVirt Engine, it cannot extend the storage. Now the questions are: 1. Is it that enabling advanced DWH on the engine host is the root cause for 100GB of disk getting filled in about 1 month? 2. How do we clear the disk of some unwanted files and extend the space? 3. How do we reset the DWH database to basic? <div class="moz-signature">Note: CentOS 7.2 is not even allowing us to login to console to do any action. Booting the Hosted Engine VM with Live CD etc., looks like is ruled out in this case. -- Thanks & Regards, <address style="line-height: 100%">Anantha Raghava</address> <address style="line-height: 100%">eXza Technology Consulting & Services</address> Do not print this e-mail unless required. Save Paper & trees. </div> </body> </html> --------------10436485D205AA7FD0A15C25--

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oVirt 4.0 Reporting
by aleksey.maksimov＠it-kb.ru 31 Oct '16

31 Oct '16

Hello oVirt guru`s! In the first half of 2016 was the following information: http://lists.ovirt.org/pipermail/users/2016-June/040549.html Are there any news about the built-in oVirt 4.0 reporting mechanism? Is there any chance that we will see reports in the oVirt web console?

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when engine broken
by 张余歌 31 Oct '16

31 Oct '16

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Fwd: Re: Local and Shared storage in same datacenter
by Mike 30 Oct '16

30 Oct '16

Hi Barak, Op 30-10-2016 om 11:19 schreef Barak Korren: >> While I understand that this makes having local storage impossible, I >> believe there is a use case to have local storage in a shared storage >> datacenter. >> Consider the following: >> I have a few applications that require 1 milli second latency and at most 2 >> milli second. >> That is not consistenly achievable with shared storage, to that end I added >> flash storage to a few hypervisors. >> About 5% of my servers require this and are not that resource hungry to >> require a dedicated physical server. >> That same 5% also has no requirement to be migrated if a host fails. >> > > I mentioned this in another thread already, please look into the VDSM > scratchpad hook. It will allow you to attach (files on) the local SSDs > (as disks) to VMs when those VMs start up. It will perfectly meet your > use case if you only need to keep the data on the SSD while the VM is > up. > > The data should not be lost if we power down the VM. If the data is lost during a host failure we have options to restore the data, but do not want to do it on a weekly/monthly basis. The scratchpad is useful for other options we are exploring, thanks!

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Persist files node-ng
by Jonas Israelsson 28 Oct '16

28 Oct '16

How do I persist files on a ng-node ? I forgot to add some needed network-configuration during install. While these manually added config files seem to survive a reboot, updating the node via the web-ui will wipe them. TIA Jonas

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gluster setup in ovirt
by Thing 28 Oct '16

28 Oct '16

Hi, I have 3 machines imported into ovirt 4.0.4 just to do storage. I have no storage setup. I am a bit confused, can I add new storage from scratch via ovirt? ie picking mount points (I have /gv1 so set on each) or do I create the gluster replicated setup manually on each of the three nodes first? and import "ready made"?

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messed up gluster attempt
by Thing 28 Oct '16

28 Oct '16

Hi, So was was trying to make a 3 way mirror and it reported failed. Now I get these messages, On glusterp1, ========= [root@glusterp1 ~]# gluster peer status Number of Peers: 1 Hostname: 192.168.1.32 Uuid: ef780f56-267f-4a6d-8412-4f1bb31fd3ac State: Peer in Cluster (Connected) [root@glusterp1 ~]# gluster peer probe glusterp3.graywitch.co.nz peer probe: failed: glusterp3.graywitch.co.nz is either already part of another cluster or having volumes configured [root@glusterp1 ~]# gluster volume info No volumes present [root@glusterp1 ~]# ========= on glusterp2, ========= [root@glusterp2 ~]# systemctl status glusterd.service ● glusterd.service - GlusterFS, a clustered file-system server Loaded: loaded (/usr/lib/systemd/system/glusterd.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2016-10-28 15:22:34 NZDT; 5min ago Main PID: 16779 (glusterd) CGroup: /system.slice/glusterd.service └─16779 /usr/sbin/glusterd -p /var/run/glusterd.pid --log-level INFO Oct 28 15:22:32 glusterp2.graywitch.co.nz systemd[1]: Starting GlusterFS, a clustered file-system server... Oct 28 15:22:34 glusterp2.graywitch.co.nz systemd[1]: Started GlusterFS, a clustered file-system server. [root@glusterp2 ~]# gluster volume info No volumes present [root@glusterp2 ~]# gluster peer status Number of Peers: 2 Hostname: 192.168.1.33 Uuid: 0fde5a5b-6254-4931-b704-40a88d4e89ce State: Sent and Received peer request (Connected) Hostname: 192.168.1.31 Uuid: a29a93ee-e03a-46b0-a168-4d5e224d5f02 State: Peer in Cluster (Connected) [root@glusterp2 ~]# ========== on glusterp3, ========== [root@glusterp3 glusterd]# systemctl status glusterd.service ● glusterd.service - GlusterFS, a clustered file-system server Loaded: loaded (/usr/lib/systemd/system/glusterd.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2016-10-28 15:26:40 NZDT; 1min 16s ago Main PID: 7033 (glusterd) CGroup: /system.slice/glusterd.service └─7033 /usr/sbin/glusterd -p /var/run/glusterd.pid --log-level INFO Oct 28 15:26:37 glusterp3.graywitch.co.nz systemd[1]: Starting GlusterFS, a clustered file-system server... Oct 28 15:26:40 glusterp3.graywitch.co.nz systemd[1]: Started GlusterFS, a clustered file-system server. [root@glusterp3 glusterd]# gluster volume info No volumes present [root@glusterp3 glusterd]# gluster peer probe glusterp1.graywitch.co.nz peer probe: failed: glusterp1.graywitch.co.nz is either already part of another cluster or having volumes configured [root@glusterp3 glusterd]# gluster volume info No volumes present [root@glusterp3 glusterd]# gluster peer status Number of Peers: 1 Hostname: glusterp2.graywitch.co.nz Uuid: ef780f56-267f-4a6d-8412-4f1bb31fd3ac State: Sent and Received peer request (Connected) [root@glusterp3 glusterd]# =========== How do I clean this mess up? thanks

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gluster how to setup a volume across 3 nodes via ovirt
by Thing 27 Oct '16

27 Oct '16

Hi, I have 3 gluster nodes running, ====== [root@glusterp1 ~]# gluster peer status Number of Peers: 2 Hostname: 192.168.1.33 Uuid: 0fde5a5b-6254-4931-b704-40a88d4e89ce State: Peer in Cluster (Connected) Hostname: 192.168.1.32 Uuid: ef780f56-267f-4a6d-8412-4f1bb31fd3ac State: Peer in Cluster (Connected) ====== I have a 900gb partition on each of the three nodes ready to go, formatted xfs. However when I go into host---> storage devices it says gv_1-lvgv1 is already in use and "create brick" is greyed out. So how do I get "create brick" un-greyed? The partition isnt mounted, just setup and xfs'd ready for use. Or am I better to set it up via the CLI on glusterp1? I assume I can then import it into ovirt for use?

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