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Thin clients connect to a virtual machine using spice and require a password
by xilazz＠126.com 27 Mar '19

27 Mar '19

Hello everyone, when I want to use the thin client to connect the virtual machine, I will use spice mode to connect, but I need to specify the port of the host and spice password. Could you please tell me where I can check the spice password of the virtual machine

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ETL DWH errors after restoring to a new server
by Staniforth, Paul 27 Mar '19

27 Mar '19

Hello, I have deployed a new machine to run our engine 4.2.8 using engine-backup to do a full backup/restore to a clean Centos install. We are now having a lot of errors with ovirt-engine-dwhd e.g. java.lang.OutOfMemoryError: Java heap space java.lang.OutOfMemoryError: GC overhead limit exceeded org.postgresql.util.PSQLException: An I/O error occured while sending to the backend. We had a file from 2015 /etc/ovirt-engine/engine.conf.d/10-setup-java.conf ENGINE_HEAP_MIN="5845M" ENGINE_HEAP_MAX="5845M" I changed it to ENGINE_HEAP_MIN=2g ENGINE_HEAP_MAX=4g and restarted the engine and dwhd But am still getting errors. Regards, Paul S. To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/

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Gluster VM image Resync Time
by Indivar Nair 27 Mar '19

27 Mar '19

Hi All, We are planning a 2 + 1 arbitrated mirrored Gluster setup. We would have around 50 - 60 VMs, with an average 500GB disk size. Now in case one of the Gluster Nodes go completely out of sync, roughly, how long would it take to resync? (as per your experience) Will it impact the working of VMs in any way? Is there anything to be taken care of, in advance, to prepare for such a situation? Regards, Indivar Nair

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oVirt Roles and Permissions
by Wood Peter 27 Mar '19

27 Mar '19

Hi, I'm trying to setup oVirt 4.2.8.2-1.el7 based on a few simple requirements: Users should be able to: 1) reate new VMs 2) create VMs from templates 2a) Ability to clone the template disk to create a VM independent of the template 3) create templates 4) view only the VMs they have permissions to work with i.e. UserVmManager role assign to them This was all possible through the "User Portal" in version 3 (3.6 is what I had). The new "VM Portal" doesn't allow users to create templates. In order to satisfy (3) users must login to the Admin Portal. This is OK but I created a new Admin role with just login permissions and users can see all VMs in the cluster. I assume a filter can be created but in general I don't want them to have that much visibility. I can probably get away without (3) but I still can figure out how to do (2a) using "VM Portal". All VMs created from a template are dependent on that template. Even if the template is optimized for Server. How do I accomplish this? Thank you in advance for any suggestions. -- Peter

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Can't manually migrate VM's (4.3.0)
by Ron Jerome 26 Mar '19

26 Mar '19

I've been running 4.3.0 for a few weeks now and just discovered that I can't manually migrate VM's from the UI. I get an error message saying: "Could not fetch data needed for VM migrate operation" Sounds like https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=1670701 Ron.

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Re: Using NFS on Gluster
by Strahil 26 Mar '19

26 Mar '19

Hi Indivar, You can do that , but is complicated. First, I would recommend you to use either replica 3 or replica 3 arbiter 1 cluster volumes. Second , you have 2 options - to use NFS provided by Cluster Cluster ,but this is deprecated and you will have to migrate from that option once it get's completely removed. Third option is to use CTDB to fail over your floating VIP and to start NFS-Ganesha. The benefit of using NFS-Ganesha is that it uses libgfapi and connects to all cluster nodes simultaneously providing accumulated performance. Best Regards, Strahil Nikolov On Mar 26, 2019 16:42, Indivar Nair <indivar.nair(a)techterra.in> wrote: > > > > > Hi All, > > > > We would like to set up a 2 node mirrored Gluster Storage using the ovirt installation tools, but use it as an NFS storage. > > > > We want to do this for 2 reasons - > > > > 1. We have a high-speed link between both the Gluster Nodes which we would like to use for brick replication rather than ovirt node's 1G link > > 2. We have fast SSD disks on the ovirt nodes which we would like to use for local NFS Caching (FS Caching) on the VM Images. > > > > In short, we would like to manage Gluster stroage using the ovirt web interface, but access the Gluster storage as an NFS Server. > > > > How can we do this? > > > > Thanks. > > > > Regards, > > > > > > Indivar Nair > >

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ovn-provider-network
by Staniforth, Paul 26 Mar '19

26 Mar '19

Hello, we are using oVirt-4.2.8 and I have created a logical network using the ovn-network-provider, I haven't configured it to connect to a physical network. I have 2 VMs running on 2 hosts which can connect to each other this logical network. The only connection between the hosts is over the ovirtmgmt network so presumably the traffic is using this? Thanks, Paul S. To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/

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Re: Changing Ovirt hosted engine memory
by Strahil 26 Mar '19

26 Mar '19

What is the output of 'free -h' on the engine? Doesn't it show the new memory size? You need to wait some time so the OVF get's updated. Best Regards, Strahil NikolovOn Mar 26, 2019 18:11, Dionysis K <dkstiler(a)gmail.com> wrote: > > Thanks you bust still not any resolution for some reason, it does not update the memory of the Hosted engine, while its on global maintenance, whatever i do either it will stay on the same number for example 5120 MiB either the above message > > The physical node that runs the Hosted Engine VM has it has 24 Gigs or ram installed, and availiable are 22 It reports on the gui > > Please any help would be appreciated > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/UAKOQ5FKHOY4Q…

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Using NFS on Gluster
by Indivar Nair 26 Mar '19

26 Mar '19

Hi All, We would like to set up a 2 node mirrored Gluster Storage using the ovirt installation tools, but use it as an NFS storage. We want to do this for 2 reasons - 1. We have a high-speed link between both the Gluster Nodes which we would like to use for brick replication rather than ovirt node's 1G link 2. We have fast SSD disks on the ovirt nodes which we would like to use for local NFS Caching (FS Caching) on the VM Images. In short, we would like to manage Gluster stroage using the ovirt web interface, but access the Gluster storage as an NFS Server. How can we do this? Thanks. Regards, Indivar Nair

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Re: OVirt Gluster Fail
by Strahil 26 Mar '19

26 Mar '19

Hi Andrea, My guess is that while node2 was in maintenance , node3 brick(s) have died, or there were some pending heals. For backup, you can use anything that works for KVM, but the hard part is to get the configuration of each VM. If the VM is running, you can use 'virsh dumpxml domain' to get the configuration of the running VM, but this won't work for VM that are off. Why firewalld was not stopped - my guess is a rare bug that is hard to reproduce. Best Regards, Strahil Nikolov On Mar 26, 2019 17:10, Andrea Milan <commramius(a)tiscali.it> wrote: > > Hi Sahina, Strahil > > > > thank you for the information, I managed to start the heal and restore both the hosted engine and the Vms. > > > > This is the log’s on all nodes > > > > [2019-03-26 08:30:58.462329] I [MSGID: 104045] [glfs-master.c:91:notify] 0-gfapi: New graph 676c6e6f-6465-3032-2e61-736370642e6c (0) coming up > > [2019-03-26 08:30:58.462364] I [MSGID: 114020] [client.c:2356:notify] 0-asc-client-0: parent translators are ready, attempting connect on transport > > [2019-03-26 08:30:58.464374] I [MSGID: 114020] [client.c:2356:notify] 0-asc-client-1: parent translators are ready, attempting connect on transport > > [2019-03-26 08:30:58.464898] I [rpc-clnt.c:1965:rpc_clnt_reconfig] 0-asc-client-0: changing port to 49438 (from 0) > > [2019-03-26 08:30:58.466148] I [MSGID: 114020] [client.c:2356:notify] 0-asc-client-3: parent translators are ready, attempting connect on transport > > [2019-03-26 08:30:58.468028] E [socket.c:2309:socket_connect_finish] 0-asc-client-0: connection to 192.170.254.3:49438 failed (Nessun instradamento per l'host) > > [2019-03-26 08:30:58.468054] I [rpc-clnt.c:1965:rpc_clnt_reconfig] 0-asc-client-1: changing port to 49441 (from 0) > > [2019-03-26 08:30:58.470040] I [rpc-clnt.c:1965:rpc_clnt_reconfig] 0-asc-client-3: changing port to 49421 (from 0) > > [2019-03-26 08:30:58.471345] I [MSGID: 114057] [client-handshake.c:1440:select_server_supported_programs] 0-asc-client-1: Using Program GlusterFS 3.3, Num (1298437), Version (330) > > [2019-03-26 08:30:58.472642] I [MSGID: 114046] [client-handshake.c:1216:client_setvolume_cbk] 0-asc-client-1: Connected to asc-client-1, attached to remote volume '/bricks/asc/brick'. > > [2019-03-26 08:30:58.472659] I [MSGID: 114047] [client-handshake.c:1227:client_setvolume_cbk] 0-asc-client-1: Server and Client lk-version numbers are not same, reopening the fds > > [2019-03-26 08:30:58.472714] I [MSGID: 108005] [afr-common.c:4387:afr_notify] 0-asc-replicate-0: Subvolume 'asc-client-1' came back up; going online. > > [2019-03-26 08:30:58.472731] I [MSGID: 114035] [client-handshake.c:202:client_set_lk_version_cbk] 0-asc-client-1: Server lk version = 1 > > [2019-03-26 08:30:58.473112] E [socket.c:2309:socket_connect_finish] 0-asc-client-3: connection to 192.170.254.6:49421 failed (Nessun instradamento per l'host) > > [2019-03-26 08:30:58.473152] W [MSGID: 108001] [afr-common.c:4467:afr_notify] 0-asc-replicate-0: Client-quorum is not met > > [2019-03-26 08:30:58.477699] I [MSGID: 108031] [afr-common.c:2157:afr_local_discovery_cbk] 0-asc-replicate-0: selecting local read_child asc-client-1 > > [2019-03-26 08:30:58.477804] I [MSGID: 104041] [glfs-resolve.c:885:__glfs_active_subvol] 0-asc: switched to graph 676c6e6f-6465-3032-2e61-736370642e6c (0) > > > > > > I analyzed the single nodes and I realized that the firewalld service has been stopped on all nodes. > > Firewalld re-enabled the heal started automatically, and the “gluster heal volume VOLNAME info” immediately gave correct connections. > > > > the recovery of the single bricks started immediatly. > > When finished that I have correctly detected and start the host-engine. > > > > I wanted to tell you about the sequence that led me to the block: > > > > 1) Node03 in maintenance by hosted-engine. > > 2) Maintenance performed and restarted. > > 3) Repositioned active node03 > > 4) Heal automatic controlled with Ovirt Manager. > > 5) Heal completed correctly. > > 6) Node02 put into maintenance. > > 7) During the shutdown of the Node02 some VMs have gone to Pause, Ovirt Manager has signaled the block of the Node01 and immediately the host-engine has stopped. > > 8) Restarted the Node02, I saw that the gluster had the peer but there was no healing between the nodes. > > I had to close everything, and the situation that presented itself was that of previous emails. > > > > Questions: > > - Why did the Node02 in maintenance block Node01? > > - Why was restarting the system not restarting the firewalld service? Is it also managed by vdsm? > > - What is the correct way to backup virtual machines on an external machine? We use Ovirt4.1 > > - can backup be used outside of Ovirt? Es qemu-kvm standard ... > > Thanks for all. > Best regards > Andrea Milan > > Il 25.03.2019 11:53 Sahina Bose ha scritto: >> >> You will first need to restore connectivity between the gluster peers >> >> for heal to work. So restart glusterd on all hosts as Strahil >> >> mentioned, and check if "gluster peer status" returns the other nodes >> >> as connected. If not, please check the glusterd log to see what's >> >> causing the issue. Share the logs if we need to look at it, along with >> >> the version info >> >> >> >> >> >> On Sun, Mar 24, 2019 at 1:08 AM Strahil <hunter86_bg(a)yahoo.com> wrote: >>> >>> Hi Andrea, The cluster volumes might have sharding enabled and thus files larger than shard size can be recovered only via cluster. You can try to restart gluster on all nodes and force heal: 1. Kill gluster processes: systemctl stop glusterd /usr/share/glusterfs/scripts/stop-all-gluster-processes.sh 2. Start gluster: systemctl start glusterd 3. Force heal: for i in $(gluster volume list); do gluster volume heal $i full ; done sleep 300 for i in $(gluster volume list); do gluster volume heal $i info summary ; done Best Regards, Strahil Nikolov On Mar 23, 2019 13:51, commramius(a)tiscali.it wrote: > > During maintenance of a machine the hosted engine crashed. > At that point there was no more chance of managing anything. > > The VMs have paused, and were no longer manageable. > I restarted the machine, but one point all the bricks were no longer reachable. > > Now I am in a situation where the engine support is no longer loaded. > > The gluster sees the peers connected and the services turned on for the various bricks, but fails to heal the messages that I find for each machine are the following > > # gluster volume heal engine info > Brick 192.170.254.3:/bricks/engine/brick > > . > . > . > > Status: Connected Number of entries: 190 > > Brick 192.170.254.4:/bricks/engine/brick > Status: Il socket di destinazione non è connesso > Number of entries: - > > Brick 192.170.254.6:/bricks/engine/brick > Status: Il socket di destinazione non è connesso > Number of entries: - > > this for all the bricks (some have no heal to do because the machines inside were turned off). > > In practice all the bricks see only localhost as connected. > > How can I restore the machines? > Is there a way to read data from the physical machine and export it so that it can be reused? > Unfortunately we need to access that data. > > Someone can help me. > > Thanks Andrea > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/EOIY7ZU4GOEMR… _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/NMBDYBOY4TZB3… > > > > > Con OpenStar hai Giga, SMS e i minuti che vuoi da 4,99€ al mese, per sempre. Cambi gratis quando e come vuoi e in più hai 6 mesi di INFINTY! http://tisca.li/myopen >

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