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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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Changing Ovirt hosted engine memory
by Dionysis K 26 Mar '19

26 Mar '19

Hello! i am new user to ovirt and i was trying to increase the memory of the hosted engine from 5120 MB to 10240 MB and the reports on the events are those bellow, the environment the hosted engine runs is on 3 ovirt nodes with version 4.2.8 and the hosted engine is updates with the latest version, any ideas how to set up things Failed to hot set memory to VM HostedEngine. Underlying error message: unsupported configuration: Attaching memory device with size '5242880' would exceed domain's maxMemory config VDSM command SetAmountOfMemoryVDS failed: unsupported configuration: Attaching memory device with size '5242880' would exceed domain's maxMemory config

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oVirt 4.3 - create windows2012 vm failed
by jingjie.jiang＠oracle.com 26 Mar '19

26 Mar '19

Hi, The oVirt 4.3 is installed on CentOS 7.6. Windows2012 vm failed with following error messages: 2019-03-18 09:19:12,941-04 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ForkJoinPool-1-worker-15) [] EVENT_ID: VM_DOWN_ERROR(119), VM win12_nfs is down with error. Exit message: internal error: qemu unexpectedly closed the monitor: 2019-03-18T13:19:11.837850Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config, ability to start up with partial NUMA mappings is obsoleted and will be removed in future Hyper-V SynIC is not supported by kernel 2019-03-18T13:19:11.861071Z qemu-kvm: kvm_init_vcpu failed: Function not implemented. Anyone suggestion? Thanks, Jingjie

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Re: OVirt Gluster Fail
by Strahil 26 Mar '19

26 Mar '19

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 NikolovOn 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…

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oVirt 2019 Survey
by Sandro Bonazzola 26 Mar '19

26 Mar '19

As we continue to develop oVirt 4.3 and future releases, the Development and Integration teams at Red Hat would value insights on how you are deploying the oVirt environment. Please help us to hit the mark by completing this short survey. Survey will close on March 31th. If you're managing multiple oVirt deployments with very different use cases or very different deployments you can consider answering this survey multiple times. Please note the answers to this survey will be publicly accessible. This survey is under oVirt Privacy Policy available at https://www.ovirt.org/site/privacy-policy.html The survey is available at https://goo.gl/forms/QOl5gDJdR83dzVPT2 Thanks, -- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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How to create a template from VM Portal
by Wood Peter 26 Mar '19

26 Mar '19

Hi, How do I create a template from a VM in "VM Portal"? I'm using version 4.2.8.2 and I don't see the option to convert a VM to a template anywhere. The documentation refers to the Administration Portal interface. Is it possible to create a template from the "VM Portal" or one must login to "Administration Portal"? Any help would be appreciated. Thank you, -- Peter

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API POST ovf file instead of libvirt KVM regular xml
by Nathanaël Blanchet 25 Mar '19

25 Mar '19

Hi all, I've got a ovf file where I need to reuse nic defintions. I want to post them to the REST API, but in API documentation, I'm only able to find examples with libvirt definition. So my question is : does ovf file are supported to be directly posted or is there a way to convert ovf file to libvirtxml so as to post them to the API? Thank you.

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Gluster event logging
by Ron Jerome 25 Mar '19

25 Mar '19

I'm running oVirt 4.3.2, and just upgraded gluster to 5.5. I see that the gluster event daemon now works, however the events are not being processed by the ovirt engine. On the engine side I'm seeing: "engine.log:2019-03-25 17:14:04,707-04 ERROR [org.ovirt.engine.core.services.GlusterEventsWebHookServlet] (default task-198) [] Error processing event data" in the engine log. On the gluster servers in event.log, I'm seeing: "[2019-03-25 17:14:04,704] WARNING [utils - 272:publish_to_webhook] - Event push failed to URL: http://ovirt-engine:80/ovirt-engine/services/glusterevents, Event: {"event": "CLIENT_CONNECT", "message": {"brick_path": "/gluster_bricks/ISO/ISO", "client_identifier": "10.10.15.12:49120", "client_uid": "CTX_ID:d988b64d-2996-44c4-88ed-ee768c9e0c21-GRAPH_ID:0-PID:43711-HOST:ovirt2-PC_NAME:ISO-client-2-RECON_NO:-0", "server_identifier": "10.10.15.12:49155", "subdir_mount": "(null)"}, "nodeid": "9a6ea54e-c692-45bd-889b-ed20c6fb1145", "ts": 1553548444}, Status Code: 500" How can I determine why these events are not getting processed? Thanks,

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Hosted Engine Storage migration
by joel+ovirt＠robisons.us 25 Mar '19

25 Mar '19

Hello listmembers! I'm in search of some steps to use to migrate my Hosted-Engine from one NFS storage domain to another different NFS storage domain. One of the possible ways to accomplish this task may already be a feature with oVirt 4.1, I'm using 4.2 https://lists.ovirt.org/pipermail/users/2017-January/078739.html (New feature in 4.1?) Will someone elaborate the steps to use this new feature and how I could use it to accomplish this task? the bug link in the email linked above has a comment (https://bugzilla.redhat.com/show_bug.cgi?id=1409112#c12) - does this mean I need to redeploy the hosted-engine? I'm not able to follow as I'm new to oVirt and still learning the ins and outs and design if I'm on the wrong path here please correct me. Thank you, -Joel

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Hosts not coming back into oVirt
by Arif Ali 25 Mar '19

25 Mar '19

Hi all, Recently deployed oVirt version 4.3.1 It's in a self-hosted engine environment Used the steps via cockpit to install the engine, and was able to add the rest of the oVirt nodes without any specific problems We tested the HA of the hosted-engine without a problem, and then at one point of turn off the machine that was hosting the engine, to mimic failure to see how it goes; the vm was able to move over successfully, but some of the oVirt started to go into Unassigned. From a total of 6 oVirt hosts, I have 4 of them in this state. Clicking on the host, I see the following message in the events. I can get to the hosts via the engine, and ping the machine, so not sure what it's doing that it's no longer working VDSM <snip> command Get Host Capabilities failed: Message timeout which can be caused by communication issues Mind you, I have been trying to resolve this issue since Monday, and have tried various things, like rebooting and re-installing the oVirt hosts, without having much luck So any assistance on this would be grateful, maybe I've missed something really simple, and I am overlooking it -- regards, Arif Ali

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CLI command to export VMs
by Sakhi Hadebe 25 Mar '19

25 Mar '19

Hi, What is the CLI command to export VMs as OVA? -- Regards, Sakhi Hadebe

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illegal Disk state
by Bryan Sockel 25 Mar '19

25 Mar '19

Hi, Had an issue with a vm over the weekend and i am now unable to start the vm. Both Disks show up in an illegal state when i attempt to launch the vm. Any help would be greatly appreciated. Below are the portions of vdsm.log and engine.log files. VM is stored on an ISCSI Lun. VDSM.Log - https://docs.google.com/document/d/1RWxka-EtiPHF9KWjvZrVCuV90tVKRZtOefvkXQp… Engine.Log - https://docs.google.com/document/d/1wyGrlxemI_hPgUeVlCibi0AYCO7NL_HVyXv_ICo… Thank You, Bryan Sockel

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Re: High iowait and low throughput on NFS, oflag=direct fixes it?
by Strahil 25 Mar '19

25 Mar '19

What are the mount options ? I think I read somewhere about poor NFS performance. I think that 'async' mount option was a kind of solution. Best Regards, Strahil NikolovOn Mar 25, 2019 15:45, Frank Wall <fw(a)moov.de> wrote: > > Hi, > > I've been using oVirt for years and have just discovered a rather strange > issue that causes EXTREME high iowait when using a NFSv3 storage. > > Here's a quick test on a CentOS 7.6 VM running on any oVirt 4.2.x node: > (5 oVirt nodes, all showing the same results) > > # CentOS VM > $ dd if=/dev/zero of=TEST02 bs=1M count=3000 > 3000+0 records in > 3000+0 records out > 3145728000 bytes (3.1 GB) copied, 141.649 s, 22.2 MB/s > > # iostat output > Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await r_await w_await svctm %util > vdb 0.00 0.00 1.00 50.00 0.00 23.02 924.39 121.62 2243.47 2301.00 2242.32 19.61 100.00 > > > As you can see iowait is beyond bad both for read and write requests. > During this test the underlying NFS storage server was idle, disks barely > doing anything. iowait on the NFS storage server was very low. > > However, when using oflag=direct the test shows a completely different result: > > > # CentOS VM > $ dd if=/dev/zero of=TEST02 bs=1M count=3000 oflag=direct > 3000+0 records in > 3000+0 records out > 3145728000 bytes (3.1 GB) copied, 21.0724 s, 149 MB/s > > # iostat output > Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await r_await w_await svctm %util > vdb 0.00 0.00 4.00 483.00 0.02 161.00 677.13 2.90 5.96 0.00 6.01 1.99 97.10 > > > This test shows the *expected* performance in this small oVirt setup. > Notice how iowait remains healthy, although the throughput is 7x higher now. > > I think this 2nd test may prove multiple things: the NFS storage is fast > enough and there's no networking/switch issue either. > > Still, under normal conditions WRITE/READ operations are really slow and > iowait goes through the roof. > > Do these results make sense to anyone? Any hints how to find what's wrong here? > Any tests I should run or sysctls/tunables that would make sense? > > FWIW, iperf result looks good between the oVirt Node and the NFS storage: > > [ ID] Interval Transfer Bandwidth > [ 3] 0.0-10.0 sec 10.9 GBytes 9.36 Gbits/sec > > > Regards > - Frank > _______________________________________________ > 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/GUDZWGRLIVCEC…

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share ISO storage domain between 4.2 and 4.3 ??
by Matthias Leopold 25 Mar '19

25 Mar '19

Hi, My test and production oVirt environments share the ISO domain. When I upgrade the test environment to 4.3 the ISO domain will be used by oVirt 4.2 and 4.3 at the same time. Is that a problem? thx Matthias

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4.2.8 to 4.3.2 upgrade
by Leo David 25 Mar '19

25 Mar '19

Hi everyone, I have seen a lot of threads here regarding 4.3.x release regarding problems a different layers, most of them related to underneath gluster storage. I would do an upgrade though, thus benefiting the new added features. My thoughts would be: 1. did anyone succesfully went through this process, any problems occured during of after the upgrade ? 2. any sincere recomandation like "if it works don't fix it" considering the platform is running in production ? I would really apreciate your oppinion. Thank you very much ! Leo

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Re: Can't connect to storage
by Strahil 25 Mar '19

25 Mar '19

You can check if any hosts' network is out of sync. Also try ssh from engine to each host. Best Regards, Strahil NikolovOn Mar 24, 2019 16:05, Julio Cesar Bustamante <julio.cesar.bustamante(a)gmail.com> wrote: > > Hi everyone > > I hace a problem with ovirtmanager 4.2. in the nodes can't connect to storage. They show these messages. What can I do yo Solve it? > > >

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Can't connect to storage
by Julio Cesar Bustamante 25 Mar '19

25 Mar '19

Hi everyone I hace a problem with ovirtmanager 4.2. in the nodes can't connect to storage. They show these messages. What can I do yo Solve it?

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Add Storage Domain to existing Datacenter - side effect
by jeanbaptiste.coupiac＠nfrance.com 25 Mar '19

25 Mar '19

Hello Guys, We are evaluating oVirt , and this morning I had to face to a side effect ( small impact because oVIrt Datacenter is actually a small one). 1. I added a new Storage domain from iSCSI SAN 2. Not all hosts HBA were authorized to access to this LUN (lack of configuration on SAN side) 3. One of ovirt Node on four nodes into my datacenter couldn't access to the LUN => this ovirt node has gone into "Non-responsible" state. => All VMs running into this host has gone to another My question is regarding the "operational mode" : * If I add a Storage Domain which is not already fully configured / badly configured ("regarding HBA acces granted on SAN side), when I add the Storage Domain to my DC, each oVirt node into my datacenter will move to "non-operationnal" state after fews seconds since no one will be able to log into the new LUN ? (This state change can have some "major effect" (vm migration between hosts without any logic) ?) Does I miss something ? Is there a guard ? Is Cluster Fencing policy option: Skip fencing on cluster connectivity issues => Threshold: xx% can protect this type of error ? Regards, Jean-Baptiste

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OVirt Gluster Fail
by commramius＠tiscali.it 23 Mar '19

23 Mar '19

Ho una installazione OVirt 4.1 in gluster. Durante la manutenzione di una macchina abbiamo l'Hosted Engine si è bloccato. A quel punto non c'è stata più possibilità di gestire nulla. Le vm sono andate in pausa, e non sono state più gestibili. Ho atteso il riavvio della macchina, ma a quel punto anche tutti i brick non erano più raggiungibili. Ora mi trovo nella situazione in cui non viene più caricato il mount per l'engine. Il gluster vede i peer connessi e i servizi accesi per i vari brick, ma non riesce a fare l'heal i messaggi che trovo per ogni macchina sono i seguenti: # gluster volume heal engine info Brick 192.170.254.3:/bricks/engine/brick <gfid:cf9eac3a-b532-4557-8d81-2fca07a0d3f5> . . . <gfid:cf5eaf66-b532-5444-8d81-2fca07a0d3f5> 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: - questo per tutti i brick (alcuni non hanno alcun heal da fare perchè le macchine all'interno erano state spente). In pratica tutti i brick vedono solo localhost come connesso. Come posso fare per ripristinare le macchine? Esiste un modo per poter leggere i dati dalla macchina fisica ed esportarli in modo da poterli riusare? Purtroppo abbiamo la necessità di accedere a quei dati Qualcuno può aiutarmi. Grazie Andrea

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Change or configure ovirt Admin portal UI to custom port number
by moonlitcoders＠gmail.com 23 Mar '19

23 Mar '19

Hi All, was wondering if there is a way to configure a custom port for the Admin Portal UI. When configuring and installing ovirt engine, it uses the default https port (443) I was curious if there is a way to set a non standard port like 8443 or 4443 to be used for accessing the admin portal - so to access the UI I would navigate to https://yourdomain/ovirt-engine:8443. Any suggestions or help would be greatly appreciated. Thanks in advance! Ren

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Problem putting node into maintenance
by Gianluca Cecchi 22 Mar '19

22 Mar '19

Hello, node (plain CentOS) in 4.3.1. I have to update to 4.3.2, but when I try to put into maintrnance I see this message that preents me from doing it... " Error while executing action: Cannot switch Host ov200 to Maintenance mode. Image transfer is in progress for the following (2) disks: a97c70c1-512f-4b45-818d-9c32150b5aa1, f1135ee1-ef35-4b00-b81a-a983228323c9 Please wait for the operations to complete and try again. " It seems no operation are currently in place. I had uploaded two iso images to a data (iSCSI based) domain and I noticed that the transfer completed but inside disks page they remained with "completed" status and not ok. I removed them but still the message How to fix? Thanks, Gianluca

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