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storage healing question
by Dev Ops 12 Nov '18

12 Nov '18

The switches above our environment had some VPC issues and the port channels went offline. The ports that had issues belonged to 2 of the gfs nodes in our environment. We have 3 storage nodes total with the 3rd being the arbiter. I wound up rebooting the first 2 nodes and everything came back happy. After a few hours I noticed that the storage was up but complaining about being out of sync and needing healing. Within the hour I noticed a VM had paused itself due to storage issues. This is a small environment, for now, with only 30 VM's. I am new to Ovirt so this is uncharted territory for me. I am tailing some logs and things look sort of normal and google is sending me down a wormhole. If I run "gluster volume heal cps-vms-gfs info" this number seems to be changing pretty regularly. Logs are showing lots of entries like this: [2018-11-08 21:55:05.996675] I [MSGID: 114047] [client-handshake.c:1242:client_setvolume_cbk] 0-cps-vms-gfs-client-1: Server and Client lk-version numbers are not same, reopening the fds [2018-11-08 21:55:05.997693] I [MSGID: 108002] [afr-common.c:5312:afr_notify] 0-cps-vms-gfs-replicate-0: Client-quorum is met [2018-11-08 21:55:05.997717] I [MSGID: 114035] [client-handshake.c:202:client_set_lk_version_cbk] 0-cps-vms-gfs-client-1: Server lk version = 1 I guess I am curious what else should I be looking for? Is this just taking forever to heal? Is there something else I can run or I should do to verify things are actually getting better? I ran an actual heal command and it cleared everything for a few seconds and then the entries started to populate again when I did the info command. [root@cps-vms-gfs01 glusterfs]# gluster volume status Status of volume: cps-vms-gfs Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick 10.8.255.1:/gluster/cps-vms-gfs01/brick 49152 0 Y 4054 Brick 10.8.255.2:/gluster/cps-vms-gfs02/brick 49152 0 Y 4144 Brick 10.8.255.3:/gluster/cps-vms-gfs03/brick 49152 0 Y 4294 Self-heal Daemon on localhost N/A N/A Y 4279 Self-heal Daemon on cps-vms-gfs02.cisco.com N/A N/A Y 5185 Self-heal Daemon on 10.196.152.145 N/A N/A Y 50948 Task Status of Volume cps-vms-gfs ------------------------------------------------------------------------------ There are no active volume tasks I am running ovirt 4.2.5 and gluster 3.12.11. Thanks!

2 3

Network/Storage design
by Josep Manel Andrés Moscardó 11 Nov '18

11 Nov '18

Hi, I am new to oVirt and trying to deploy a cluster to see whether we can move from VMWare to oVirt, but my first stopper is how to do a proper design for the infrastructure, how many networks do I need?, I have 2x10Gb SFP+ and 4x1Gb ethernet. For storage we have NFS coming from Netapp and ceph. Could someone point me in the right direction? Thanks.

4 5

libgfapi support are "false" by default in ovirt 4.2 ?
by Mike Lykov 09 Nov '18

09 Nov '18

Hi All I'm try to set up last ovirt version : ovirt-release42-pre.rpm repository Then, I install these (and many deps) rpms: ovirt-hosted-engine-setup-2.2.30-1.el7.noarch ovirt-engine-appliance-4.2-20181026.1.el7.noarch vdsm-4.20.43-1.el7.x86_64 vdsm-gluster-4.20.43-1.el7.x86_64 vdsm-network-4.20.43-1.el7.x86_64 All from that repository, and use webui installer for create glusterfs volumes (default suggested engine, data, vmstore) and then install hosted engine on that "engine" volume. In cluster I want to use libgfapi gluster storage access method, but when I import storages, created by installer at first step, VDSM mount it on hosts with FUSE. For Example ovirtstor1.miac:/engine on /rhev/data-center/mnt/glusterSD/ovirtstor1.miac:_engine type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072) ovirtnode1.miac:/data on /rhev/data-center/mnt/glusterSD/ovirtnode1.miac:_data type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072) I see in config, And it is disabled (false) [root@ovirtengine ~]# engine-config -a | grep -i libgf LibgfApiSupported: false version: 3.6 LibgfApiSupported: false version: 4.0 LibgfApiSupported: false version: 4.1 LibgfApiSupported: false version: 4.2 Why? Its is needed to enable it by hand? Like as in this presentation? https://www.slideshare.net/DenisChapligin/improving-hyperconverged-performa…

5 7

ovirt 4.2.7 nested not importing she domain
by Gianluca Cecchi 09 Nov '18

09 Nov '18

Hello, I'm configuring a nested self hosted engine environment with 4.2.7 and CentOS 7.5. Domain type is NFS. I deployed with hosted-engine --deploy --noansible All went apparently good but after creating the master storage domain I see that the hosted engine domain is not automatically imported At the moment I have only one host. ovirt-ha-agent status gives every 10 seconds: Nov 09 00:36:30 ovirtdemo01.localdomain.local ovirt-ha-agent[18407]: ovirt-ha-agent ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config.vm ERROR Unable to identify the OVF_STORE volume, falling back to initial vm.conf. Please ensure you already added your first data domain for regular VMs In engine.log I see every 15 seconds a dumpxml output ad the message: 2018-11-09 00:31:52,822+01 WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerObjectsBuilder] (EE-ManagedThreadFactory-engineScheduled-Thread-52) [7fcce3cb] null architecture type, replacing with x86_64, VM [HostedEngine] see full below. Any hint? Thanks Gianluca 2018-11-09 00:31:52,714+01 INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (EE-ManagedThreadFactory-engineScheduled-Thread-52) [] VM '21c5fe9f-cd46-49fd-a6f3-009b4d450894' was discovered as 'Up' on VDS '4de40432-c1f7-4f20-b231-347095015fbd'(ovirtdemo01.localdomain.local) 2018-11-09 00:31:52,764+01 INFO [org.ovirt.engine.core.bll.AddUnmanagedVmsCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-52) [7fcce3cb] Running command: AddUnmanagedVmsCommand internal: true. 2018-11-09 00:31:52,766+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DumpXmlsVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-52) [7fcce3cb] START, DumpXmlsVDSCommand(HostName = ovirtdemo01.localdomain.local, Params:{hostId='4de40432-c1f7-4f20-b231-347095015fbd', vmIds='[21c5fe9f-cd46-49fd-a6f3-009b4d450894]'}), log id: 5d5a0a63 2018-11-09 00:31:52,775+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DumpXmlsVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-52) [7fcce3cb] FINISH, DumpXmlsVDSCommand, return: {21c5fe9f-cd46-49fd-a6f3-009b4d450894=<domain type='kvm' id='2'> <name>HostedEngine</name> <uuid>21c5fe9f-cd46-49fd-a6f3-009b4d450894</uuid> <metadata xmlns:ovirt-tune="http://ovirt.org/vm/tune/1.0" xmlns:ovirt-vm=" http://ovirt.org/vm/1.0"> <ovirt-tune:qos/> <ovirt-vm:vm xmlns:ovirt-vm="http://ovirt.org/vm/1.0"> <ovirt-vm:destroy_on_reboot type="bool">False</ovirt-vm:destroy_on_reboot> <ovirt-vm:memGuaranteedSize type="int">0</ovirt-vm:memGuaranteedSize> <ovirt-vm:startTime type="float">1541719799.6</ovirt-vm:startTime> <ovirt-vm:device devtype="console" name="console0"> <ovirt-vm:deviceId>2e8944d3-7ac4-4597-8883-c0b2937fb23b</ovirt-vm:deviceId> <ovirt-vm:specParams/> <ovirt-vm:vm_custom/> </ovirt-vm:device> <ovirt-vm:device mac_address="00:16:3e:35:d9:2c"> <ovirt-vm:deviceId>0f1d0ce3-8843-4418-b882-0d84ca481717</ovirt-vm:deviceId> <ovirt-vm:network>ovirtmgmt</ovirt-vm:network> <ovirt-vm:specParams/> <ovirt-vm:vm_custom/> </ovirt-vm:device> <ovirt-vm:device devtype="disk" name="hdc"> <ovirt-vm:deviceId>6d167005-b547-4190-938f-ce1b82eae7af</ovirt-vm:deviceId> <ovirt-vm:shared>false</ovirt-vm:shared> <ovirt-vm:specParams/> <ovirt-vm:vm_custom/> </ovirt-vm:device> <ovirt-vm:device devtype="disk" name="vda"> <ovirt-vm:deviceId>8eb98007-1d9a-4689-bbab-b3c7060efef8</ovirt-vm:deviceId> <ovirt-vm:domainID>fbcfb922-0103-43fb-a2b6-2bf0c9e356ea</ovirt-vm:domainID> <ovirt-vm:guestName>/dev/vda</ovirt-vm:guestName> <ovirt-vm:imageID>8eb98007-1d9a-4689-bbab-b3c7060efef8</ovirt-vm:imageID> <ovirt-vm:poolID>00000000-0000-0000-0000-000000000000</ovirt-vm:poolID> <ovirt-vm:shared>exclusive</ovirt-vm:shared> <ovirt-vm:volumeID>64bdb7cd-60a1-4420-b3a6-607b20e2cd5a</ovirt-vm:volumeID> <ovirt-vm:specParams/> <ovirt-vm:vm_custom/> <ovirt-vm:volumeChain> <ovirt-vm:volumeChainNode> <ovirt-vm:domainID>fbcfb922-0103-43fb-a2b6-2bf0c9e356ea</ovirt-vm:domainID> <ovirt-vm:imageID>8eb98007-1d9a-4689-bbab-b3c7060efef8</ovirt-vm:imageID> <ovirt-vm:leaseOffset type="int">0</ovirt-vm:leaseOffset> <ovirt-vm:leasePath>/rhev/data-center/mnt/ovirtdemo01.localdomain.local:_SHE__DOMAIN/fbcfb922-0103-43fb-a2b6-2bf0c9e356ea/images/8eb98007-1d9a-4689-bbab-b3c7060efef8/64bdb7cd-60a1-4420-b3a6-607b20e2cd5a.lease</ovirt-vm:leasePath> <ovirt-vm:path>/rhev/data-center/mnt/ovirtdemo01.localdomain.local:_SHE__DOMAIN/fbcfb922-0103-43fb-a2b6-2bf0c9e356ea/images/8eb98007-1d9a-4689-bbab-b3c7060efef8/64bdb7cd-60a1-4420-b3a6-607b20e2cd5a</ovirt-vm:path> <ovirt-vm:volumeID>64bdb7cd-60a1-4420-b3a6-607b20e2cd5a</ovirt-vm:volumeID> </ovirt-vm:volumeChainNode> </ovirt-vm:volumeChain> </ovirt-vm:device> </ovirt-vm:vm> </metadata> <memory unit='KiB'>6270976</memory> <currentMemory unit='KiB'>6270976</currentMemory> <vcpu placement='static' current='1'>2</vcpu> <cputune> <shares>1020</shares> </cputune> <resource> <partition>/machine</partition> </resource> <sysinfo type='smbios'> <system> <entry name='manufacturer'>oVirt</entry> <entry name='product'>oVirt Node</entry> <entry name='version'>7-5.1804.5.el7.centos</entry> <entry name='serial'>2820BD92-2B2B-42C5-912B-76FB65E93FBF</entry> <entry name='uuid'>21c5fe9f-cd46-49fd-a6f3-009b4d450894</entry> </system> </sysinfo> <os> <type arch='x86_64' machine='pc-i440fx-rhel7.5.0'>hvm</type> <smbios mode='sysinfo'/> </os> <features> <acpi/> </features> <cpu mode='custom' match='exact' check='full'> <model fallback='forbid'>Skylake-Client</model> <feature policy='require' name='hypervisor'/> </cpu> <clock offset='variable' adjustment='0' basis='utc'> <timer name='rtc' tickpolicy='catchup'/> <timer name='pit' tickpolicy='delay'/> <timer name='hpet' present='no'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>destroy</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='cdrom'> <driver error_policy='stop'/> <source startupPolicy='optional'/> <target dev='hdc' bus='ide'/> <readonly/> <alias name='ide0-1-0'/> <address type='drive' controller='0' bus='1' target='0' unit='0'/> </disk> <disk type='file' device='disk' snapshot='no'> <driver name='qemu' type='raw' cache='none' error_policy='stop' io='threads'/> <source file='/var/run/vdsm/storage/fbcfb922-0103-43fb-a2b6-2bf0c9e356ea/8eb98007-1d9a-4689-bbab-b3c7060efef8/64bdb7cd-60a1-4420-b3a6-607b20e2cd5a'/> <backingStore/> <target dev='vda' bus='virtio'/> <serial>8eb98007-1d9a-4689-bbab-b3c7060efef8</serial> <boot order='1'/> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </disk> <controller type='scsi' index='0' model='virtio-scsi'> <alias name='scsi0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </controller> <controller type='usb' index='0' model='piix3-uhci'> <alias name='usb'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <controller type='pci' index='0' model='pci-root'> <alias name='pci.0'/> </controller> <controller type='ide' index='0'> <alias name='ide'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <controller type='virtio-serial' index='0'> <alias name='virtio-serial0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </controller> <lease> <lockspace>fbcfb922-0103-43fb-a2b6-2bf0c9e356ea</lockspace> <key>64bdb7cd-60a1-4420-b3a6-607b20e2cd5a</key> <target path='/rhev/data-center/mnt/ovirtdemo01.localdomain.local:_SHE__DOMAIN/fbcfb922-0103-43fb-a2b6-2bf0c9e356ea/images/8eb98007-1d9a-4689-bbab-b3c7060efef8/64bdb7cd-60a1-4420-b3a6-607b20e2cd5a.lease'/> </lease> <interface type='bridge'> <mac address='00:16:3e:35:d9:2c'/> <source bridge='ovirtmgmt'/> <target dev='vnet0'/> <model type='virtio'/> <link state='up'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <console type='pty' tty='/dev/pts/0'> <source path='/dev/pts/0'/> <target type='virtio' port='0'/> <alias name='console0'/> </console> <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/channels/21c5fe9f-cd46-49fd-a6f3-009b4d450894.com.redhat.rhevm.vdsm'/> <target type='virtio' name='com.redhat.rhevm.vdsm' state='connected'/> <alias name='channel0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/channels/21c5fe9f-cd46-49fd-a6f3-009b4d450894.org.qemu.guest_agent.0'/> <target type='virtio' name='org.qemu.guest_agent.0' state='connected'/> <alias name='channel1'/> <address type='virtio-serial' controller='0' bus='0' port='2'/> </channel> <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/channels/21c5fe9f-cd46-49fd-a6f3-009b4d450894.org.ovirt.hosted-engine-setup.0'/> <target type='virtio' name='org.ovirt.hosted-engine-setup.0' state='disconnected'/> <alias name='channel2'/> <address type='virtio-serial' controller='0' bus='0' port='3'/> </channel> <input type='mouse' bus='ps2'> <alias name='input0'/> </input> <input type='keyboard' bus='ps2'> <alias name='input1'/> </input> <graphics type='vnc' port='5900' autoport='yes' listen='0' passwdValidTo='1970-01-01T00:00:01'> <listen type='address' address='0'/> </graphics> <video> <model type='vga' vram='32768' heads='1' primary='yes'/> <alias name='video0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='none'> <alias name='balloon0'/> </memballoon> <rng model='virtio'> <backend model='random'>/dev/urandom</backend> <alias name='rng0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </rng> </devices> <seclabel type='dynamic' model='selinux' relabel='yes'> <label>system_u:system_r:svirt_t:s0:c500,c542</label> <imagelabel>system_u:object_r:svirt_image_t:s0:c500,c542</imagelabel> </seclabel> <seclabel type='dynamic' model='dac' relabel='yes'> <label>+107:+107</label> <imagelabel>+107:+107</imagelabel> </seclabel> </domain> }, log id: 5d5a0a63 2018-11-09 00:31:52,822+01 WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerObjectsBuilder] (EE-ManagedThreadFactory-engineScheduled-Thread-52) [7fcce3cb] null architecture type, replacing with x86_64, VM [HostedEngine]

3 4

Storage domain mount error: Lustre file system (Posix compliant FS)
by okok102928＠fusiondata.co.kr 09 Nov '18

09 Nov '18

Hi. I am an ovirt user in Korea. I am working on VDI. It's a pleasure to meet you, the ovirt specialists. (I do not speak English well... Thank you for your understanding!) I am testing Lustre File System in Ovirt or RH(E)V environment. (The reason is simple: glusterfs and nfs have limit of performance, SAN Storage and excellent Software Defined Storage are quite expensive.) Testing for file system performance was successful. As expected, luster showed amazing performance. However, there was an error adding luster storage to the storage domain as Posix compliant FS. Domain Function : Data Storage Type : POSIX compliant FS Host to Use : [SPM_HOSTNAME] Name : [STORAGE_DOMAIN_NAME] Path : 10.10.10.15@tcp:/lustre/vmstore VFS Type : lustre Mount Options : The vdsm debug logs are shown below. 2018-10-25 12:46:58,963+0900 INFO (jsonrpc/2) [storage.xlease] Formatting index for lockspace u'c0ef7ee6-1da9-4eef-9e03-387cd3a24445' (version=1) (xlease:653) 2018-10-25 12:46:58,971+0900 DEBUG (jsonrpc/2) [root] /usr/bin/dd iflag=fullblock of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases oflag=direct,seek_bytes seek=1048576 bs=256512 count=1 conv=notrunc,nocreat,fsync (cwd None) (commands:65) 2018-10-25 12:46:58,985+0900 DEBUG (jsonrpc/2) [root] FAILED: <err> = "/usr/bin/dd: error writing '/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\n"; <rc> = 1 (commands:86) 2018-10-25 12:46:58,985+0900 INFO (jsonrpc/2) [vdsm.api] FINISH createStorageDomain error=Command ['/usr/bin/dd', 'iflag=fullblock', u'of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases', 'oflag=direct,seek_bytes', 'seek=1048576', 'bs=256512', 'count=1', 'conv=notrunc,nocreat,fsync'] failed with rc=1 out='[suppressed]' err="/usr/bin/dd: error writing '/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\n" from=::ffff:192.168.161.104,52188, flow_id=794bd395, task_id=c9847bf3-2267-483b-9099-f05a46981f7f (api:50) 2018-10-25 12:46:58,985+0900 ERROR (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') Unexpected error (task:875) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 882, in _run return fn(*args, **kargs) File "<string>", line 2, in createStorageDomain File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 48, in method ret = func(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/storage/hsm.py", line 2591, in createStorageDomain storageType, domVersion) File "/usr/lib/python2.7/site-packages/vdsm/storage/nfsSD.py", line 87, in create remotePath, storageType, version) File "/usr/lib/python2.7/site-packages/vdsm/storage/fileSD.py", line 465, in _prepareMetadata cls.format_external_leases(sdUUID, xleases_path) File "/usr/lib/python2.7/site-packages/vdsm/storage/sd.py", line 1200, in format_external_leases xlease.format_index(lockspace, backend) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 661, in format_index index.dump(file) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 761, in dump file.pwrite(INDEX_BASE, self._buf) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 994, in pwrite self._run(args, data=buf[:]) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 1011, in _run raise cmdutils.Error(args, rc, "[suppressed]", err) Error: Command ['/usr/bin/dd', 'iflag=fullblock', u'of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases', 'oflag=direct,seek_bytes', 'seek=1048576', 'bs=256512', 'count=1', 'conv=notrunc,nocreat,fsync'] failed with rc=1 out='[suppressed]' err="/usr/bin/dd: error writing '/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\n" 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') Task._run: c9847bf3-2267-483b-9099-f05a46981f7f (6, u'c0ef7ee6-1da9-4eef-9e03-387cd3a24445', u'vmstore', u'10.10.10.15@tcp:/lustre/vmstore', 1, u'4') {} failed - stopping task (task:894) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') stopping in state failed (force False) (task:1256) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') ref 1 aborting True (task:1002) 2018-10-25 12:46:58,986+0900 INFO (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') aborting: Task is aborted: u'Command [\'/usr/bin/dd\', \'iflag=fullblock\', u\'of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases\', \'oflag=direct,seek_bytes\', \'seek=1048576\', \'bs=256512\', \'count=1\', \'conv=notrunc,nocreat,fsync\'] failed with rc=1 out=\'[suppressed]\' err="/usr/bin/dd: error writing \'/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases\': Invalid argument\\n1+0 records in\\n0+0 records out\\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\\n"' - code 100 (task:1181) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') Prepare: aborted: Command ['/usr/bin/dd', 'iflag=fullblock', u'of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases', 'oflag=direct,seek_bytes', 'seek=1048576', 'bs=256512', 'count=1', 'conv=notrunc,nocreat,fsync'] failed with rc=1 out='[suppressed]' err="/usr/bin/dd: error writing '/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\n" (task:1186) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') ref 0 aborting True (task:1002) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') Task._doAbort: force False (task:937) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.ResourceManager.Owner] Owner.cancelAll requests {} (resourceManager:947) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') moving from state failed -> state aborting (task:602) 2018-10-25 12:46:58,986+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') _aborting: recover policy none (task:557) 2018-10-25 12:46:58,987+0900 DEBUG (jsonrpc/2) [storage.TaskManager.Task] (Task='c9847bf3-2267-483b-9099-f05a46981f7f') moving from state failed -> state failed (task:602) 2018-10-25 12:46:58,987+0900 DEBUG (jsonrpc/2) [storage.ResourceManager.Owner] Owner.releaseAll requests {} resources {} (resourceManager:910) 2018-10-25 12:46:58,987+0900 DEBUG (jsonrpc/2) [storage.ResourceManager.Owner] Owner.cancelAll requests {} (resourceManager:947) 2018-10-25 12:46:58,987+0900 ERROR (jsonrpc/2) [storage.Dispatcher] FINISH createStorageDomain error=Command ['/usr/bin/dd', 'iflag=fullblock', u'of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases', 'oflag=direct,seek_bytes', 'seek=1048576', 'bs=256512', 'count=1', 'conv=notrunc,nocreat,fsync'] failed with rc=1 out='[suppressed]' err="/usr/bin/dd: error writing '/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\n" (dispatcher:86) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/storage/dispatcher.py", line 73, in wrapper result = ctask.prepare(func, *args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 108, in wrapper return m(self, *a, **kw) File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 1189, in prepare raise self.error Error: Command ['/usr/bin/dd', 'iflag=fullblock', u'of=/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases', 'oflag=direct,seek_bytes', 'seek=1048576', 'bs=256512', 'count=1', 'conv=notrunc,nocreat,fsync'] failed with rc=1 out='[suppressed]' err="/usr/bin/dd: error writing '/rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore/c0ef7ee6-1da9-4eef-9e03-387cd3a24445/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.000943896 s, 0.0 kB/s\n" 2018-10-25 12:46:58,987+0900 INFO (jsonrpc/2) [jsonrpc.JsonRpcServer] RPC call StorageDomain.create failed (error 351) in 0.41 seconds (__init__:573) 2018-10-25 12:46:59,058+0900 DEBUG (jsonrpc/3) [jsonrpc.JsonRpcServer] Calling 'StoragePool.disconnectStorageServer' in bridge with {u'connectionParams': [{u'id': u'316c5f1f-753e-42a1-8e30-4ee6f976906a', u'connection': u'10.10.10.15@tcp:/lustre/vmstore', u'iqn': u'', u'user': u'', u'tpgt': u'1', u'vfs_type': u'lustre', u'password': '********', u'port': u''}], u'storagepoolID': u'00000000-0000-0000-0000-000000000000', u'domainType': 6} (__init__:590) 2018-10-25 12:46:59,058+0900 WARN (jsonrpc/3) [devel] Provided value "6" not defined in StorageDomainType enum for StoragePool.disconnectStorageServer (vdsmapi:275) 2018-10-25 12:46:59,058+0900 WARN (jsonrpc/3) [devel] Provided parameters {u'id': u'316c5f1f-753e-42a1-8e30-4ee6f976906a', u'connection': u'10.10.10.15@tcp:/lustre/vmstore', u'iqn': u'', u'user': u'', u'tpgt': u'1', u'vfs_type': u'lustre', u'password': '********', u'port': u''} do not match any of union ConnectionRefParameters values (vdsmapi:275) 2018-10-25 12:46:59,059+0900 DEBUG (jsonrpc/3) [storage.TaskManager.Task] (Task='3c6b249f-a47f-47f1-a647-5893b6f60b7c') moving from state preparing -> state preparing (task:602) 2018-10-25 12:46:59,059+0900 INFO (jsonrpc/3) [vdsm.api] START disconnectStorageServer(domType=6, spUUID=u'00000000-0000-0000-0000-000000000000', conList=[{u'id': u'316c5f1f-753e-42a1-8e30-4ee6f976906a', u'connection': u'10.10.10.15@tcp:/lustre/vmstore', u'iqn': u'', u'user': u'', u'tpgt': u'1', u'vfs_type': u'lustre', u'password': '********', u'port': u''}], options=None) from=::ffff:192.168.161.104,52188, flow_id=f1bf4bf8-9033-42af-9329-69960638ba0e, task_id=3c6b249f-a47f-47f1-a647-5893b6f60b7c (api:46) 2018-10-25 12:46:59,059+0900 INFO (jsonrpc/3) [storage.Mount] unmounting /rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore (mount:212) 2018-10-25 12:46:59,094+0900 DEBUG (jsonrpc/3) [storage.Mount] /rhev/data-center/mnt/10.10.10.15@tcp:_lustre_vmstore unmounted: 0.03 seconds (utils:452) 1. If you use the direct flag when using the dd command, luster only works in multiples of 4k (4096). Therefore, bs = 256512, which is not a multiple of 4096, causes an error. 2. Ovirt / RH(E)V An error occurs regardless of version. I have tested both in 3.6, 4.1, and 4.2 environments. I searched hard, but I did not have a similar case. I want to ask three questions. 1. Is there a way to fix the problem in Ovirt? (Secure bypass or some configurations) 2. (Extension of Question # 1) Where does block size 256512 come from? Why is it 256512? 3. Is this a problem you need to solve in the Lustre file system? (For example, a setting capable of direct IO in units of 512 bytes) I need help. Thank you for your reply.

3 2

Changing the system resources of the pool VM
by Hyung-Keun Kim 09 Nov '18

09 Nov '18

Hi. What I want to ask is simple. System resource changes in the Pool VM do not seem to be supported by ovirt. So let me ask you two questions. 1. Can you tell what the reason is? Are you related to the ovf file? 2. Is there any other way to use sub-templates? (Manual work is also fine) Is it possible to modify DB value only? If not, what else should I touch? Waiting for experts to answer. Thank you.

1 0

GlusterFS distributed replicated with arbiter on 4 nodes - settings
by Jarosław Prokopowski 09 Nov '18

09 Nov '18

Hi Guys, I would like to use GlusterFS distributed-replicated with arbiter volume on 4 nodes for oVirt. Can you tell me what tuning parameters should I set for such volume for best VM performance? Does it make any sense to upgrade from Glusterfs 3.12 to 4.1 or even 5.0? Thanks! Jarek

3 2

non-ovirt node as gluster node
by Tony Brian Albers 09 Nov '18

09 Nov '18

Hi guys, I have 3 machines that I'd like to test oVirt/gluster on. The idea is that I want two of them to be oVirt nodes and the third to run the oVirt engine. They all have 8 hdd's, and I'd like to use these in gluster for storing the vm images. (on all 3 machines) So, machine1 is a gluster server with oVirt engine installed machine2 is a gluster server and oVirt node machine3 is a gluster server and oVirt node Is this doable? TIA, /tony -- Tony Albers Systems Architect Systems Director, National Cultural Heritage Cluster Royal Danish Library, Victor Albecks Vej 1, 8000 Aarhus C, Denmark. Tel: +45 2566 2383 / +45 8946 2316

6 7

Q: Guest shutdown from UPS power off signal with "virsh"
by Andrei Verovski 08 Nov '18

08 Nov '18

Hi ! I have a shell script running on all servers which intercepts power off signal (in case of power failure). Is it safe to use direct KVM “virsh” commands to force guest shutdown on oVirt nodes, bypassing oVirt engine ? “shutdown now” directly on oVirt nodes v4.2.6 takes an enormous amount of time because for whatever reason guests can’t be suspended. My nodes installed on CentOS 7.5, I’m not using pre-packaged version because each consecutive upgrade simply wipes out all my mods. Thanks in advance. Andrei PS. I found this script to shutdown KVM guests: *************************************** #!/bin/bash # https://ask.fedoraproject.org/en/question/8796/make-libvirt-to-shutdown-my-… LIST_VM=`virsh list | grep running | awk '{print $2}'` TIMEOUT=90 DATE=`date -R` LOGFILE="/var/log/shutdownkvm.log" if [ "x$activevm" = "x" ] then exit 0 fi for activevm in $LIST_VM do PIDNO=`ps ax | grep $activevm | grep kvm | cut -c 1-6 | head -n1` echo "$DATE : Shutdown : $activevm : $PIDNO" >> $LOGFILE virsh shutdown $activevm > /dev/null COUNT=0 while [ "$COUNT" -lt "$TIMEOUT" ] do ps --pid $PIDNO > /dev/null if [ "$?" -eq "1" ] then COUNT=110 else sleep 5 COUNT=$(($COUNT+5)) fi done if [ $COUNT -lt 110 ] then echo "$DATE : $activevm not successful force shutdown" >> $LOGFILE virsh destroy $activevm > /dev/null fi done

2 1

wrong vm disk size after uploading and attaching to VM
by Jarosław Prokopowski 08 Nov '18

08 Nov '18

Hi, After uploading virutal machine disk to storage domain and attaching it to virtual machine the disk size is shown in properties as 0 and the VM boots to dracut complaining about the disk size. The disk is "thin provision" Device /dev/sda2 has size of 22528 sectors which is smaller than corresponding PV size of 166746122 <16%20674%2061%2022> Is there a way to fix that? Thanks Jarek

1 0