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Fence Agent in Virtual Environment
by jb 05 Nov '20

05 Nov '20

Hello, I would like to build a hyperconverged gluster with hosted engine in a virtual environment, on Fedora 33 with KVM. The setup is for testing purposes, specially for test upgrades before running them on the real physical Servers. But I want to have the setup as close as possible to the real environment, so the only thing is missing is a fence agent. Is there a way to simulate power management in a virtual environment? Jonathan

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Re: Fence Agent in Virtual Environment
by Jonathan Baecker 05 Nov '20

05 Nov '20

Am 05.11.20 um 19:19 schrieb Strahil Nikolov: > You need to enable HA for the VM. Yes this I know and I had this on. When I set the host in maintenance mode, the VM was moving to another host, but not when I kill the host. > About the XVM , I think that you first need to install it on all hosts and then check in UI, if you can find that fence agent in "Power Management". Thanks, I will try this! Best Regard Jonathan > > Best Regards, > Strahil Nikolov > > > > > > > В четвъртък, 5 ноември 2020 г., 18:41:40 Гринуич+2, jb <jonbae77(a)gmail.com> написа: > > > > > > Yes I know, is just a guest... I wanted to test what is happen with a > VM, when I kill it's host. After that, I have not seen that the VM is > moving to another host. > > So I thought maybe ovirt needs the power management for that. > > I have read about fence_xvm, but I don't know how to configure oVirt > with that. > > > > Am 05.11.20 um 17:11 schrieb Strahil Nikolov: >> This is just a guess , but you might be able to install fence_xvm on all Virtualized Hosts . >> >> Best Regards, >> Strahil Nikolov >> >> >> >> >> >> >> В четвъртък, 5 ноември 2020 г., 16:00:40 Гринуич+2, jb <jonbae77(a)gmail.com> написа: >> >> >> >> >> >> Hello, >> >> I would like to build a hyperconverged gluster with hosted engine in a >> virtual environment, on Fedora 33 with KVM. >> >> The setup is for testing purposes, specially for test upgrades before >> running them on the real physical Servers. But I want to have the setup >> as close as possible to the real environment, so the only thing is >> missing is a fence agent. >> >> Is there a way to simulate power management in a virtual environment? >> >> >> Jonathan >> _______________________________________________ >> Users mailing list -- users(a)ovirt.org >> To unsubscribe send an email to users-leave(a)ovirt.org >> Privacy Statement: https://www.ovirt.org/privacy-policy.html >> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/V5SHGKNLTK24D…

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configuration of hyperconverged setup with ssd cache for slow drives
by Rob Verduijn 05 Nov '20

05 Nov '20

Hello, After a serious struggle I finally managed to get ovirt-hosted engine with the hyperconverged setup to work. However I did not manage to get the ssd cache option for my slow sata drives to work. The installation script complained about mismatching block sizes. Is there a way to make the cockpit hyperconverged installation handle this ? Rob fdisk -l /dev/sda Disk /dev/sda: 238.5 GiB, 256060514304 bytes, 500118192 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes fdisk -l /dev/mapper/gluster_vg_sdc-gluster_lv_data Disk /dev/mapper/gluster_vg_sdc-gluster_lv_data: 4.9 TiB, 5368709120000 bytes, 1310720000 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 1310720 bytes / 2621440 bytes

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[ANN] oVirt 4.4.3 Eighth Release Candidate is now available for testing
by Lev Veyde 05 Nov '20

05 Nov '20

oVirt 4.4.3 Eighth Release Candidate is now available for testing The oVirt Project is pleased to announce the availability of oVirt 4.4.3 Eighth Release Candidate for testing, as of November 5th, 2020. This update is the third in a series of stabilization updates to the 4.4 series. How to prevent hosts entering emergency mode after upgrade from oVirt 4.4.1 Note: Upgrading from 4.4.2 GA should not require re-doing these steps, if already performed while upgrading from 4.4.1 to 4.4.2 GA. These are only required to be done once. Due to Bug 1837864 <https://bugzilla.redhat.com/show_bug.cgi?id=1837864> - Host enter emergency mode after upgrading to latest build If you have your root file system on a multipath device on your hosts you should be aware that after upgrading from 4.4.1 to 4.4.3 you may get your host entering emergency mode. In order to prevent this be sure to upgrade oVirt Engine first, then on your hosts: 1. Remove the current lvm filter while still on 4.4.1, or in emergency mode (if rebooted). 2. Reboot. 3. Upgrade to 4.4.3 (redeploy in case of already being on 4.4.3). 4. Run vdsm-tool config-lvm-filter to confirm there is a new filter in place. 5. Only if not using oVirt Node: - run "dracut --force --add multipath” to rebuild initramfs with the correct filter configuration 6. Reboot. Documentation - If you want to try oVirt as quickly as possible, follow the instructions on the Download <https://ovirt.org/download/> page. - For complete installation, administration, and usage instructions, see the oVirt Documentation <https://ovirt.org/documentation/>. - For upgrading from a previous version, see the oVirt Upgrade Guide <https://ovirt.org/documentation/upgrade_guide/>. - For a general overview of oVirt, see About oVirt <https://ovirt.org/community/about.html>. Important notes before you try it Please note this is a pre-release build. The oVirt Project makes no guarantees as to its suitability or usefulness. This pre-release must not be used in production. You can hit: Problem: cannot install the best update candidate for package ovirt-engine-metrics-1.4.1.1-1.el8.noarch - nothing provides rhel-system-roles >= 1.0-19 needed by ovirt-engine-metrics-1.4.2-1.el8.noarch in order to get rhel-system-roles >= 1.0-19 you need https://buildlogs.centos.org/centos/8/virt/x86_64/ovirt-44/ repo since that package can be promoted to release only at 4.4.3 GA. Installation instructions For installation instructions and additional information please refer to: https://ovirt.org/documentation/ This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 8.2 or newer * CentOS Linux (or similar) 8.2 or newer This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 8.2 or newer * CentOS Linux (or similar) 8.2 or newer * oVirt Node 4.4 based on CentOS Linux 8.2 (available for x86_64 only) See the release notes [1] for installation instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available for CentOS Linux 8 - oVirt Node NG is already available for CentOS Linux 8 Additional Resources: * Read more about the oVirt 4.4.3 release highlights: http://www.ovirt.org/release/4.4.3/ * Get more oVirt project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4.4.3/ [2] http://resources.ovirt.org/pub/ovirt-4.4-pre/iso/ -- Lev Veyde Senior Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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回复:[ovirt-devel] Re: Host's status how to change to UP when I execute Management--> Active command
by 李伏琼 05 Nov '20

05 Nov '20

thanks very much --------------原始邮件-------------- 发件人："Liran Rotenberg "<lrotenbe(a)redhat.com>; 发送时间：2020年11月5日(星期四) 晚上11:52 收件人："lifuqiong(a)sunyainfo.com" <lifuqiong(a)sunyainfo.com>; 抄送："users "<users(a)ovirt.org>;"devel "<devel(a)ovirt.org>; 主题：[ovirt-devel] Re: Host's status how to change to UP when I execute Management--> Active command ----------------------------------- Hi,The engine will monitor that host. Once it's reachable and we can get information from it the status will change accordingly. Please check out the HostMonitoring class. On Thu, Nov 5, 2020 at 11:57 AM lifuqiong(a)sunyainfo.com <lifuqiong(a)sunyainfo.com> wrote: Hi,      I checkout ovirt-engine's code with branch 4.2;  When execute Host's Management --> Active  command,  ovirt engine just set vds's status to "Unassigned" but how the vds's status changed to "UP" in ovirt-engine?  The code in ActiveVdsCommand.executeCommand() as follows: protected void executeCommand() {         final VDS vds = getVds();         try (EngineLock monitoringLock = acquireMonitorLock("Activate host")) {             executionHandler.updateSpecificActionJobCompleted(vds.getId(), ActionType.MaintenanceVds, false);             setSucceeded(setVdsStatus(VDSStatus.Unassigned).getSucceeded());             if (getSucceeded()) {                 TransactionSupport.executeInNewTransaction(() -> {                     // set network to operational / non-operational                     List<Network> networks = networkDao.getAllForCluster(vds.getClusterId());                     networkClusterHelper.setStatus(vds.getClusterId(), networks);                     return null;                 });                 // Start glusterd service on the node, which would haven been stopped due to maintenance                 if (vds.getClusterSupportsGlusterService()) {                     runVdsCommand(VDSCommandType.ManageGlusterService,                             new GlusterServiceVDSParameters(vds.getId(), Arrays.asList("glusterd"), "restart"));                     // starting vdo service                     GlusterStatus isRunning = glusterUtil.isVDORunning(vds.getId());                     switch (isRunning) {                     case DOWN:                         log.info("VDO service is down in host : '{}' with id '{}', starting VDO service",                                 vds.getHostName(),                                 vds.getId());                         startVDOService(vds);                         break;                     case UP:                         log.info("VDO service is up in host : '{}' with id '{}', skipping starting of VDO service",                                 vds.getHostName(),                                 vds.getId());                            break;                     case UNKNOWN:                         log.info("VDO service is not installed host : '{}' with id '{}', ignoring to start VDO service",                                 vds.getHostName(),                                 vds.getId());                         break;                     }                 }             }         }     } Your Sincerely Mark Lee _______________________________________________ Devel mailing list -- devel(a)ovirt.org To unsubscribe send an email to devel-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/devel@ovirt.org/message/36745S77NLH3K…

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Re: [ovirt-devel] Host's status how to change to UP when I execute Management--> Active command
by Liran Rotenberg 05 Nov '20

05 Nov '20

Hi, The engine will monitor that host. Once it's reachable and we can get information from it the status will change accordingly. Please check out the HostMonitoring class. On Thu, Nov 5, 2020 at 11:57 AM lifuqiong(a)sunyainfo.com < lifuqiong(a)sunyainfo.com> wrote: > > Hi, > I checkout ovirt-engine's code with branch 4.2; When execute Host's > Management --> Active command, ovirt engine just set vds's status to > "Unassigned" but how the vds's status changed to "UP" in ovirt-engine? The > code in ActiveVdsCommand.executeCommand() as follows: > protected void executeCommand() { > > final VDS vds = getVds(); > try (EngineLock monitoringLock = acquireMonitorLock("Activate > host")) { > executionHandler.updateSpecificActionJobCompleted(vds.getId(), > ActionType.MaintenanceVds, false); > > setSucceeded(setVdsStatus(VDSStatus.Unassigned).getSucceeded()); > > if (getSucceeded()) { > TransactionSupport.executeInNewTransaction(() -> { > // set network to operational / non-operational > List<Network> networks = > networkDao.getAllForCluster(vds.getClusterId()); > networkClusterHelper.setStatus(vds.getClusterId(), > networks); > return null; > }); > > // Start glusterd service on the node, which would haven > been stopped due to maintenance > if (vds.getClusterSupportsGlusterService()) { > runVdsCommand(VDSCommandType.ManageGlusterService, > new GlusterServiceVDSParameters(vds.getId(), > Arrays.asList("glusterd"), "restart")); > // starting vdo service > GlusterStatus isRunning = > glusterUtil.isVDORunning(vds.getId()); > switch (isRunning) { > case DOWN: > log.info("VDO service is down in host : '{}' with > id '{}', starting VDO service", > vds.getHostName(), > vds.getId()); > startVDOService(vds); > break; > case UP: > log.info("VDO service is up in host : '{}' with > id '{}', skipping starting of VDO service", > vds.getHostName(), > vds.getId()); > break; > case UNKNOWN: > log.info("VDO service is not installed host : > '{}' with id '{}', ignoring to start VDO service", > vds.getHostName(), > vds.getId()); > break; > } > > } > } > } > } > > > Your Sincerely > Mark Lee > _______________________________________________ > Devel mailing list -- devel(a)ovirt.org > To unsubscribe send an email to devel-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/devel@ovirt.org/message/36745S77NLH3K… >

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Affinity Group Graceful Migration
by thilburn＠generalpacific.com 05 Nov '20

05 Nov '20

Hello, I'm trying to get an Affinity Group setup that will gracefully remove VMs from a Host. Below is what I've tried but the VMs will not migrate off. oVirt 4.3 Priority: 1 VM Affinity Rule: Disabled Host Affinity Rule: Negative ( Soft ) Virtual Machines: Select a VM ( My understanding is this would mean all VMs? ) Hosts: Host: <Name of host> Also, is this right place to ask for help on this?

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Coffee Lake CPU
by jb 05 Nov '20

05 Nov '20

Hello, sorry there comes many questions today from me! I plan a new cluster setup, and for that I bought ASUS Barebone with Intel Xeon E-2246G CPUs. Sadly I pay not enough attention to the system requirements from oVirt and now I say that theCoffee Lake-ER architecture is not in the supported CPU list from oVirt. Is there any downsides with using a Coffee Lake CPU? Jonathan

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locked disk making it impossible to remove vm
by igor.lustosa＠hybriddc.com.br 05 Nov '20

05 Nov '20

I have a vm that has two disks one active and another disabling when trying to migrate the disk to another storage the task was in a loop creating several snapshots, I turned off the VM and the loop stopped and after several hours the task disappeared and the VM disk was left blocking making it impossible to be deleted and when trying to delete the vm it does not exclude from the following message locked disk making it impossible to remove vm How can I solve this?

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VM Struck in Shutdown Mode
by Andrei Verovski 05 Nov '20

05 Nov '20

Hi, I have oVirt 4.4 engine and v4.2 nodes. On one node newly created VM struck in shutdown mode (with green round recycle icon) - I can’t anything, neither power off neither shutdown, both operation fail (with no explanation). This VM have no value whatsoever, but I can’t delete it either. Restarted oVirt engine, all same. Process list (on node) clearly shows absence of this VM as KVM process. VM is down. How to reset its status in oVirt? Thanks in advance. Andrei

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