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Backup VMs on oVirt 4.2+ with Disk image transfer
by wodel youchi 06 Jun '18

06 Jun '18

Hi, I am testing a product that can interface with oVirt API to backup VMs. The product can use v3 API (for oVirt 3.5.1+) with a proxy VM on oVirt to backup the VMs to the Export domain. And it can use v4 API (for oVirt 4+) to backup VMs, and it offers two methods for that : - for oVirt 4+ it can use Disk attachment mode, this mode uses a proxy VM on oVirt to attach the snapshot of the VM to be backed-up, and then the proxy VM can do the backup of the disk or communicate with an external backup software. This mode offers only full backups (pretty similar to v3). - for oVirt 4.2+ it can use Disk image transfer, this mode does not need a proxy VM, it exports data directly using the oVirt 4.2+ API to the backup server, and uses snapshot-chains provided by the new RHV/oVirt, which make it possible to have incremental VMs backups. I cannot get any documentation about the later approach (Disk image transfer), and my question is : what network does this approach uses to transfer the backup stream, is it ovirtmgmt network since we're talking to the API? My concern is about the bandwidth of this network, especially when backing-up huge and multiple VMs. Regards.

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oVirt 4.2 and CLI options
by Simon Coter 06 Jun '18

06 Jun '18

Hi, what is the best choice for a CLI interface vs oVirt 4.2 ? I've looked for it and I saw that ovirt-shell is already deprecated. Thanks Simon

4 4

Hey, guys, I have a trouble with ovirt OVN.
by Чижевский _ЕД 06 Jun '18

06 Jun '18

I just have no ping between vms on different hosts when connecting ovn network with subnet to physical network(ovirtmgmt)? I did this thing vdsm-tool ovn-config 172.20.139.27(ip of my engine) 172.20.139.81(ip of host, which storaging vm).

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Hosted Engine Change State, VMs Images Locked?
by Dan Lavu 06 Jun '18

06 Jun '18

So I have a few VMs that are locked and unable to start on either hypervisor, this happened after the hosted engine for some reason switched hosts. It seems like the imaged is locked but I'm unsure how to unlock it. Any advice is appreciated. Thanks, Dan Version ------------- glusterfs-3.8.4-54.8.el7rhgs.x86_64 vdsm-4.20.27.2-1.el7ev.x86_64 ovirt-ansible-disaster-recovery-0.4-1.el7ev.noarch ovirt-engine-extension-aaa-ldap-1.3.7-1.el7ev.noarch ovirt-vmconsole-proxy-1.0.5-4.el7ev.noarch ovirt-engine-setup-plugin-ovirt-engine-4.2.3.8-0.1.el7.noarch ovirt-engine-extensions-api-impl-4.2.3.8-0.1.el7.noarch ovirt-imageio-proxy-setup-1.3.1.2-0.el7ev.noarch ovirt-engine-extension-aaa-jdbc-1.1.7-1.el7ev.noarch ovirt-engine-webadmin-portal-4.2.3.4-0.1.el7.noarch ovirt-engine-backend-4.2.3.4-0.1.el7.noarch ovirt-host-deploy-1.7.3-1.el7ev.noarch ovirt-cockpit-sso-0.0.4-1.el7ev.noarch ovirt-ansible-infra-1.1.5-1.el7ev.noarch ovirt-provider-ovn-1.2.10-1.el7ev.noarch ovirt-engine-setup-4.2.3.8-0.1.el7.noarch ovirt-setup-lib-1.1.4-1.el7ev.noarch ovirt-engine-dwh-4.2.2.2-1.el7ev.noarch ovirt-js-dependencies-1.2.0-3.1.el7ev.noarch ovirt-engine-sdk-python-3.6.9.1-1.el7ev.noarch ovirt-log-collector-4.2.5-2.el7ev.noarch ovirt-ansible-v2v-conversion-host-1.1.2-1.el7ev.noarch ovirt-ansible-cluster-upgrade-1.1.7-1.el7ev.noarch ovirt-ansible-image-template-1.1.6-2.el7ev.noarch ovirt-engine-setup-plugin-ovirt-engine-common-4.2.3.8-0.1.el7.noarch ovirt-engine-websocket-proxy-4.2.3.8-0.1.el7.noarch ovirt-engine-tools-backup-4.2.3.4-0.1.el7.noarch ovirt-engine-restapi-4.2.3.4-0.1.el7.noarch ovirt-engine-tools-4.2.3.4-0.1.el7.noarch ovirt-imageio-common-1.3.1.2-0.el7ev.noarch ovirt-engine-cli-3.6.8.1-1.el7ev.noarch ovirt-web-ui-1.3.9-1.el7ev.noarch ovirt-ansible-manageiq-1.1.8-1.el7ev.noarch ovirt-ansible-roles-1.1.4-2.el7ev.noarch ovirt-engine-lib-4.2.3.8-0.1.el7.noarch ovirt-vmconsole-1.0.5-4.el7ev.noarch ovirt-engine-setup-base-4.2.3.8-0.1.el7.noarch ovirt-engine-setup-plugin-websocket-proxy-4.2.3.8-0.1.el7.noarch ovirt-host-deploy-java-1.7.3-1.el7ev.noarch ovirt-engine-dashboard-1.2.3-2.el7ev.noarch ovirt-engine-4.2.3.4-0.1.el7.noarch python-ovirt-engine-sdk4-4.2.6-1.el7ev.x86_64 ovirt-engine-metrics-1.1.4.2-1.el7ev.noarch ovirt-engine-vmconsole-proxy-helper-4.2.3.8-0.1.el7.noarch ovirt-imageio-proxy-1.3.1.2-0.el7ev.noarch ovirt-engine-dwh-setup-4.2.2.2-1.el7ev.noarch ovirt-guest-agent-common-1.0.14-3.el7ev.noarch ovirt-ansible-vm-infra-1.1.7-1.el7ev.noarch ovirt-engine-setup-plugin-vmconsole-proxy-helper-4.2.3.8-0.1.el7.noarch ovirt-engine-api-explorer-0.0.1-1.el7ev.noarch ovirt-engine-dbscripts-4.2.3.4-0.1.el7.noarch ovirt-iso-uploader-4.2.0-1.el7ev.noarch --- VDSM log --------------- 2018-06-06 01:07:12,940-0400 INFO (jsonrpc/6) [jsonrpc.JsonRpcServer] RPC call Host.getStorageRepoStats succeeded in 0.01 seconds (__init__:573) 2018-06-06 01:07:12,948-0400 INFO (jsonrpc/5) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:573) 2018-06-06 01:07:13,068-0400 INFO (periodic/3) [vdsm.api] START repoStats(domains=()) from=internal, task_id=3e30ead8-20b6-449d-a3d3-684a9d20e2c2 (api:46) 2018-06-06 01:07:13,068-0400 INFO (periodic/3) [vdsm.api] FINISH repoStats return={u'f7dfffc3-9d69-4d20-83fc-c3d4324430a2': {'code': 0, 'actual': True, 'version': 0, 'acquired': True, 'delay': '0.000482363', 'lastCheck': '2.2', 'valid': True}, u'ca5bf4c5-43d8-4d88-ae64-78f87ce016b1': {'code': 0, 'actual': True, 'version': 4, 'acquired': True, 'delay': '0.00143521', 'lastCheck': '2.2', 'valid': True}, u'f4e26e9a-427b-44f2-9ecf-5d789b56a1be': {'code': 0, 'actual': True, 'version': 4, 'acquired': True, 'delay': '0.000832749', 'lastCheck': '2.2', 'valid': True}, u'a4c70c2d-98f2-4394-a6fc-c087a31b21d3': {'code': 0, 'actual': True, 'version': 0, 'acquired': True, 'delay': '0.000280917', 'lastCheck': '2.1', 'valid': True}, u'30cee3ab-83a3-4bf4-a674-023df575c3da': {'code': 0, 'actual': True, 'version': 4, 'acquired': True, 'delay': '0.00128562', 'lastCheck': '2.1', 'valid': True}} from=internal, task_id=3e30ead8-20b6-449d-a3d3-684a9d20e2c2 (api:52) 2018-06-06 01:07:13,069-0400 INFO (periodic/3) [vdsm.api] START multipath_health() from=internal, task_id=7064b06c-14a2-4bfd-8c31-b650918b7287 (api:46) 2018-06-06 01:07:13,069-0400 INFO (periodic/3) [vdsm.api] FINISH multipath_health return={} from=internal, task_id=7064b06c-14a2-4bfd-8c31-b650918b7287 (api:52) 2018-06-06 01:07:13,099-0400 INFO (vm/78754822) [root] /usr/libexec/vdsm/hooks/before_vm_start/50_hostedengine: rc=0 err= (hooks:110) 2018-06-06 01:07:13,350-0400 INFO (vm/78754822) [root] /usr/libexec/vdsm/hooks/before_vm_start/50_vfio_mdev: rc=0 err= (hooks:110) 2018-06-06 01:07:13,578-0400 INFO (vm/78754822) [root] /usr/libexec/vdsm/hooks/before_vm_start/50_vhostmd: rc=0 err= (hooks:110) 2018-06-06 01:07:13,579-0400 INFO (vm/78754822) [virt.vm] (vmId='78754822-2bd3-4acc-a029-906b7a167c8e') <?xml version="1.0" encoding="utf-8"?><domain type="kvm" xmlns:ns0="http://ovirt.org/vm/tune/1.0" xmlns:ovirt-vm="http://ovirt.org/vm/1.0"> <name>idm1-runlevelone-lan</name> <uuid>78754822-2bd3-4acc-a029-906b7a167c8e</uuid> <memory>2097152</memory> <currentMemory>2097152</currentMemory> <maxMemory slots="16">8388608</maxMemory> <vcpu current="2">16</vcpu> <sysinfo type="smbios"> <system> <entry name="manufacturer">oVirt</entry> <entry name="product">RHEV Hypervisor</entry> <entry name="version">7.5-8.el7</entry> <entry name="serial">30333436-3638-5355-4532-313631574337</entry> <entry name="uuid">78754822-2bd3-4acc-a029-906b7a167c8e</entry> </system> </sysinfo> <clock adjustment="0" offset="variable"> <timer name="rtc" tickpolicy="catchup"/> <timer name="pit" tickpolicy="delay"/> <timer name="hpet" present="no"/> </clock> <features> <acpi/> <vmcoreinfo/> </features> <cpu match="exact"> <model>Nehalem</model> <topology cores="1" sockets="16" threads="1"/> <numa> <cell cpus="0,1" id="0" memory="2097152"/> </numa> </cpu> <cputune/> <devices> <input bus="ps2" type="mouse"/> <channel type="unix"> <target name="ovirt-guest-agent.0" type="virtio"/> <source mode="bind" path="/var/lib/libvirt/qemu/channels/78754822-2bd3-4acc-a029-906b7a167c8e.ovirt-guest-agent.0"/> </channel> <channel type="unix"> <target name="org.qemu.guest_agent.0" type="virtio"/> <source mode="bind" path="/var/lib/libvirt/qemu/channels/78754822-2bd3-4acc-a029-906b7a167c8e.org.qemu.guest_agent.0"/> </channel> <graphics autoport="yes" passwd="*****" passwdValidTo="1970-01-01T00:00:01" port="-1" tlsPort="-1" type="spice"> <channel mode="secure" name="main"/> <channel mode="secure" name="inputs"/> <channel mode="secure" name="cursor"/> <channel mode="secure" name="playback"/> <channel mode="secure" name="record"/> <channel mode="secure" name="display"/> <channel mode="secure" name="smartcard"/> <channel mode="secure" name="usbredir"/> <listen network="vdsm-ovirtmgmt" type="network"/> </graphics> <rng model="virtio"> <backend model="random">/dev/urandom</backend> <alias name="ua-1b3d2efc-5605-4b5b-afde-7e75369d0191"/> </rng> <controller index="0" model="piix3-uhci" type="usb"> <address bus="0x00" domain="0x0000" function="0x2" slot="0x01" type="pci"/> </controller> <controller type="ide"> <address bus="0x00" domain="0x0000" function="0x1" slot="0x01" type="pci"/> </controller> <controller index="0" ports="16" type="virtio-serial"> <alias name="ua-c27a9db4-39dc-436e-8b21-b2cd12aeb3dc"/> <address bus="0x00" domain="0x0000" function="0x0" slot="0x05" type="pci"/> </controller> <memballoon model="virtio"> <stats period="5"/> <alias name="ua-c82a301f-e476-4107-b954-166bbdd65f03"/> <address bus="0x00" domain="0x0000" function="0x0" slot="0x06" type="pci"/> </memballoon> <controller index="0" model="virtio-scsi" type="scsi"> <alias name="ua-d8d0e95b-80e0-4d7d-91d6-4faf0f266c6e"/> <address bus="0x00" domain="0x0000" function="0x0" slot="0x04" type="pci"/> </controller> <video> <model heads="1" ram="65536" type="qxl" vgamem="16384" vram="32768"/> <alias name="ua-f0c36e10-652c-4fc2-87e8-737271baebca"/> <address bus="0x00" domain="0x0000" function="0x0" slot="0x02" type="pci"/> </video> <channel type="spicevmc"> <target name="com.redhat.spice.0" type="virtio"/> </channel> <disk device="cdrom" snapshot="no" type="file"> <driver error_policy="report" name="qemu" type="raw"/> <source file="" startupPolicy="optional"/> <target bus="ide" dev="hdc"/> <readonly/> <alias name="ua-74a927f8-31ac-41c1-848e-599078655d77"/> <address bus="1" controller="0" target="0" type="drive" unit="0"/> <boot order="2"/> </disk> <disk device="disk" snapshot="no" type="file"> <target bus="scsi" dev="sda"/> <source file="/rhev/data-center/mnt/glusterSD/deadpool.ib.runlevelone.lan:rhev__vms/30cee3ab-83a3-4bf4-a674-023df575c3da/images/0d38d154-cbd7-491b-ac25-c96fd5fe3830/5c93d0b3-4dfa-4114-a403-09f2e8c67bfc"/> <driver cache="none" error_policy="stop" io="threads" name="qemu" type="raw"/> <alias name="ua-0d38d154-cbd7-491b-ac25-c96fd5fe3830"/> <address bus="0" controller="0" target="0" type="drive" unit="0"/> <boot order="1"/> <serial>0d38d154-cbd7-491b-ac25-c96fd5fe3830</serial> </disk> <interface type="bridge"> <model type="virtio"/> <link state="up"/> <source bridge="lab"/> <alias name="ua-db30b82a-c181-48cf-901f-29b568576ec7"/> <address bus="0x00" domain="0x0000" function="0x0" slot="0x03" type="pci"/> <mac address="00:1a:4a:16:01:63"/> <filterref filter="vdsm-no-mac-spoofing"/> <bandwidth/> </interface> </devices> <pm> <suspend-to-disk enabled="no"/> <suspend-to-mem enabled="no"/> </pm> <os> <type arch="x86_64" machine="pc-i440fx-rhel7.5.0">hvm</type> <smbios mode="sysinfo"/> </os> <metadata> <ns0:qos/> <ovirt-vm:vm> <minGuaranteedMemoryMb type="int">1365</minGuaranteedMemoryMb> <clusterVersion>4.2</clusterVersion> <ovirt-vm:custom/> <ovirt-vm:device mac_address="00:1a:4a:16:01:63"> <ovirt-vm:custom/> </ovirt-vm:device> <ovirt-vm:device devtype="disk" name="sda"> <ovirt-vm:poolID>946fd87c-6327-11e8-b7d9-00163e751a4c</ovirt-vm:poolID> <ovirt-vm:volumeID>5c93d0b3-4dfa-4114-a403-09f2e8c67bfc</ovirt-vm:volumeID> <ovirt-vm:imageID>0d38d154-cbd7-491b-ac25-c96fd5fe3830</ovirt-vm:imageID> <ovirt-vm:domainID>30cee3ab-83a3-4bf4-a674-023df575c3da</ovirt-vm:domainID> </ovirt-vm:device> <launchPaused>false</launchPaused> <resumeBehavior>auto_resume</resumeBehavior> </ovirt-vm:vm> </metadata> </domain> (vm:2867) 2018-06-06 01:07:14,584-0400 INFO (jsonrpc/3) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:573) 2018-06-06 01:07:14,590-0400 INFO (jsonrpc/4) [api.virt] START getStats() from=::1,60908, vmId=d237b932-35fa-4b98-97e2-cb0afce1b3a8 (api:46) 2018-06-06 01:07:14,590-0400 INFO (jsonrpc/4) [api] FINISH getStats error=Virtual machine does not exist: {'vmId': u'd237b932-35fa-4b98-97e2-cb0afce1b3a8'} (api:127) 2018-06-06 01:07:14,590-0400 INFO (jsonrpc/4) [api.virt] FINISH getStats return={'status': {'message': "Virtual machine does not exist: {'vmId': u'd237b932-35fa-4b98-97e2-cb0afce1b3a8'}", 'code': 1}} from=::1,60908, vmId=d237b932-35fa-4b98-97e2-cb0afce1b3a8 (api:52) 2018-06-06 01:07:14,591-0400 INFO (jsonrpc/4) [jsonrpc.JsonRpcServer] RPC call VM.getStats failed (error 1) in 0.00 seconds (__init__:573) 2018-06-06 01:07:14,675-0400 INFO (jsonrpc/0) [api.host] START getAllVmStats() from=::1,60914 (api:46) 2018-06-06 01:07:14,677-0400 INFO (jsonrpc/0) [api.host] FINISH getAllVmStats return={'status': {'message': 'Done', 'code': 0}, 'statsList': (suppressed)} from=::1,60914 (api:52) 2018-06-06 01:07:14,678-0400 INFO (jsonrpc/0) [jsonrpc.JsonRpcServer] RPC call Host.getAllVmStats succeeded in 0.00 seconds (__init__:573) 2018-06-06 01:07:15,557-0400 ERROR (vm/78754822) [virt.vm] (vmId='78754822-2bd3-4acc-a029-906b7a167c8e') The vm start process failed (vm:943) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in _startUnderlyingVm self._run() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in _run dom.createWithFlags(flags) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in createWithFlags if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self) libvirtError: internal error: qemu unexpectedly closed the monitor: 2018-06-06T05:07:14.703253Z 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 2018-06-06T05:07:14.798631Z qemu-kvm: -device scsi-hd,bus=ua-d8d0e95b-80e0-4d7d-91d6-4faf0f266c6e.0,channel=0,scsi-id=0,lun=0,drive=drive-ua-0d38d154-cbd7-491b-ac25-c96fd5fe3830,id=ua-0d38d154-cbd7-491b-ac25-c96fd5fe3830,bootindex=1: Failed to get shared "write" lock Is another process using the image?

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Storage IO
by Thomas Fecke 05 Jun '18

05 Jun '18

Hey Guys, sorry i need to ask again. We got 2 Hypervisor with about 50 running VM´s and a single Storage with 10 Gig connection. Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 3,00 694,00 1627,00 947,00 103812,00 61208,00 128,22 6,78 2,63 2,13 3,49 0,39 99,70 avg-cpu: %user %nice %system %iowait %steal %idle 0,00 0,00 3,70 31,37 0,00 64,93 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 1,00 805,00 836,00 997,00 43916,00 57900,00 111,09 6,00 3,27 1,87 4,44 0,54 99,30 avg-cpu: %user %nice %system %iowait %steal %idle 0,00 0,00 3,54 29,96 0,00 66,50 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 2,00 822,00 1160,00 1170,00 46700,00 52176,00 84,87 5,68 2,44 1,57 3,30 0,43 99,50 avg-cpu: %user %nice %system %iowait %steal %idle 0,00 0,00 5,05 31,46 0,00 63,50 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 3,00 1248,00 2337,00 1502,00 134932,00 48536,00 95,58 6,59 1,72 1,53 2,01 0,26 99,30 avg-cpu: %user %nice %system %iowait %steal %idle 0,00 0,00 3,95 31,79 0,00 64,26 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 0,00 704,00 556,00 1292,00 19908,00 72600,00 100,12 5,50 2,99 1,83 3,48 0,54 99,50 avg-cpu: %user %nice %system %iowait %steal %idle 0,00 0,00 3,03 28,90 0,00 68,07 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 0,00 544,00 278,00 1095,00 7848,00 66124,00 107,75 5,31 3,87 1,49 4,47 0,72 99,10 avg-cpu: %user %nice %system %iowait %steal %idle 0,00 0,00 3,03 29,32 0,00 67,65 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 0,00 464,00 229,00 1172,00 6588,00 72384,00 112,74 5,44 3,88 1,67 4,31 0,71 99,50 and this is our Problem. Anyone know why our Storage recive that much of Precesses? Thanks in advance

5 5

Ovirt Node NG (4.2.3.1-0.20180530) Boot fail ISCSI using ibft after installation
by Ralf Schenk 05 Jun '18

05 Jun '18

Hello, I successfully installed Ovirt Node NG from ISO to an ISCSI target attached via first network interface by using following extensions to the grub cmdline: "rd.iscsi.ibft=1 ip=ibft ip=eno2:dhcp" I want to use the server as diskless ovirt-node-ng Server. After successful install the system reboots and starts up but it fails later in dracut even having detected correctly the disk and all the LV's. I think "iscsistart" is run multiple times even after already being logged in to the ISCSI-Target and that fails finally like that: *[ 147.644872] localhost dracut-initqueue[1075]: iscsistart: initiator reported error (15 - session exists)* [ 147.645588] localhost dracut-initqueue[1075]: iscsistart: Logging into iqn.2018-01.de.databay.office:storage01.epycdphv02-disk1 172.16.1.3:3260,1 [ 147.651027] localhost dracut-initqueue[1075]: Warning: 'iscsistart -b ' failed with return code 0 [ 147.807510] localhost systemd[1]: Starting Login iSCSI Target... [ 147.809293] localhost iscsistart[6716]: iscsistart: TargetName not set. Exiting iscsistart [ 147.813625] localhost systemd[1]: iscsistart_iscsi.service: main process exited, code=exited, status=7/NOTRUNNING [ 147.824897] localhost systemd[1]: Failed to start Login iSCSI Target. [ 147.825050] localhost systemd[1]: Unit iscsistart_iscsi.service entered failed state. [ 147.825185] localhost systemd[1]: iscsistart_iscsi.service failed. After a long timeout dracut drops to a shell. I attach my shortended and cleaned rdsosreport.txt. Can someone help me find a workaround ? Bye -- *Ralf Schenk* fon +49 (0) 24 05 / 40 83 70 fax +49 (0) 24 05 / 40 83 759 mail *rs(a)databay.de* <mailto:rs@databay.de> *Databay AG* Jens-Otto-Krag-Straße 11 D-52146 Würselen *www.databay.de* <http://www.databay.de> Sitz/Amtsgericht Aachen • HRB:8437 • USt-IdNr.: DE 210844202 Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, Dipl.-Kfm. Philipp Hermanns Aufsichtsratsvorsitzender: Wilhelm Dohmen ------------------------------------------------------------------------

1 0

High latency events and events history settings
by Gianluca Cecchi 05 Jun '18

05 Jun '18

Hello, I'm going to debug some spot events I have in my iSCSI connection frm hypervisors. Sometimes I get May 31, 2018, 7:14:51 AM Storage domain ovsd3750 experienced a high latency of 8.96043 seconds from host ov200. This may cause performance and functional issues. Please consult your Storage Administrator. Jun 1, 2018, 5:26:25 AM Storage domain ovsd3750 experienced a high latency of 8.26526 seconds from host ov301. This may cause performance and functional issues. Please consult your Storage Administrator. Jun 2, 2018, 5:21:37 AM VDSM ov200 command SpmStatusVDS failed: (-202, 'Sanlock resource read failure', 'IO timeout') --> it seems no impact, actually, after a few seconds it becomes again SPM Jun 3, 2018, 7:00:14 AM Storage domain ovsd3750 experienced a high latency of 6.37818 seconds from host ov300. This may cause performance and functional issues. Please consult your Storage Administrator. And yesterday a VM running on ov301 node gets paused for a few seconds. Jun 4, 2018, 7:02:26 AM VM dbatest3 has been paused. Jun 4, 2018, 7:02:26 AM VM dbatest3 has been paused due to storage I/O problem. Jun 4, 2018, 7:02:40 AM VM dbatest3 has recovered from paused back to up. Some questions: - I'm investigating with the users, but in case it is indeed this VM causing problems on storage latency, what are my best chance to avoid it? To change disk profile for the disks of this particular VM? Or is there anything I can do globally? Or any settings on storage domain itself? What best practice? Is there a default sort of top I/O consuming barrier pre-defined on storage access speed from VMs? - How many days is the default history for events and how I can see it from web admin gui or other means? Can I change this dwfault and how? It seems I only see this possibly related parameter with engine-config command: EventProcessingPoolSize (with the value of 10 at this time) ? Any pointer to configure events' history retained settings? Thanks in advance, Gianluca

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Re: ovirt-node: freshly installed node: network interfaces not visible
by Ales Musil 05 Jun '18

05 Jun '18

On Thu, May 31, 2018 at 8:56 AM, Etienne Charlier < Etienne.Charlier(a)reduspaceservices.eu> wrote: > > Hello Ales, > > Here are the engine logs ( I put the current one and the last two > compressed ones. > > One more thing, > The server doesn't stop bouncing between states ( non operational, > activating…) It's not possible to remove it ( remove button is Always > greyed) > > Have a nice day ! > Etienne > > Hi Etienne, according to log it is https://bugzilla.redhat.com/show_bug.cgi?id=1570388 which should be resolved in 4.2.3. What is your engine version? Regards, Ales > ------------------------------ > *De :* Ales Musil <amusil(a)redhat.com> > *Envoyé :* mercredi 30 mai 2018 12:50 > > *À :* Etienne Charlier > *Cc :* users > *Objet :* Re: [ovirt-users] Re: ovirt-node: freshly installed node: > network interfaces not visible > > > > On Wed, May 30, 2018 at 10:14 AM, Etienne Charlier <Etienne.Charlier@ > reduspaceservices.eu> wrote: > >> Hello, Thanks for the support >> >> >> log are only sent to you , not to the list !!! >> >> >> Kind Regards, >> >> Etienne >> >> > Can you also please send the engine log? > > Regards, > Ales > > >> >> ------------------------------ >> *De :* Ales Musil <amusil(a)redhat.com> >> *Envoyé :* mercredi 30 mai 2018 09:02 >> *À :* Etienne Charlier >> *Cc :* users >> *Objet :* Re: [ovirt-users] Re: ovirt-node: freshly installed node: >> network interfaces not visible >> >> >> >> On Tue, May 29, 2018 at 8:40 AM, <etienne.charlier(a)reduspaceservices.eu> >> wrote: >> >>> Hello Ales, >>> >>> Thanks for the answer ! >>> >>> I tried multiple time to refresh capabilities... without success >>> >>> For the record, the tab named "Host Devices" is also empty >>> >>> Have a nice Day >>> Etienne >>> >> >> Can you please send us the vdsm and supervdsm log from the host? >> >> >> >> >>> _______________________________________________ >>> 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/communit >>> y/about/community-guidelines/ >>> List Archives: https://lists.ovirt.org/archiv >>> es/list/users(a)ovirt.org/message/ISBFSCIX7J6INUIKJXUSI6J4DWKA326Q/ >>> >> >> >> >> -- >> >> ALES MUSIL >> INTERN - rhv network >> >> Red Hat EMEA <https://www.redhat.com/> >> >> >> amusil(a)redhat.com IM: amusil >> <https://red.ht/sig> >> > > > > -- > > ALES MUSIL > INTERN - rhv network > > Red Hat EMEA <https://www.redhat.com/> > > > amusil(a)redhat.com IM: amusil > <https://red.ht/sig> > -- ALES MUSIL INTERN - rhv network Red Hat EMEA <https://www.redhat.com/> amusil(a)redhat.com IM: amusil <https://red.ht/sig>

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Microsoft Network Load Balancing
by Matthew Southwick 05 Jun '18

05 Jun '18

Any help appreciated. I have tried any and all combinations of network filters, custom network settings on vNIC, custom "macspoof" settings on the VM's. I have read countless blogs and examples. Could anyone please give me a simple list of items to check/change so that I can get windows network load balancing working between to VM's? At present, I have a network vNIC profile set to "No Network Filter" I have no custom properties on the virtual machines. I have no Network Filter Parameters set on the virtual machine vNIC. HOST: Kernel Version: 3.10.0 - 862.3.2.el7.x86_64 KVM Version: 2.10.0 - 21.el7_5.3.1 LIBVIRT Version: libvirt-3.9.0-14.el7_5.5 VDSM Version: vdsm-4.20.27.1-1.el7.centos ENGINE: Software Version:4.2.3.7-1.el7 Rgds Mat

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oVirt: single host install
by ovirt＠fateknollogee.com 05 Jun '18

05 Jun '18

Use case: small sites with a minimum number of vm's. Is there such a thing as a single host install? Is it valid for production use? What kind of storage?

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