On Mon, Feb 10, 2020 at 5:59 PM <s.panicho@gmail.com> wrote:

Hello, all. I have a 3-node Hyperconverged oVirt 4.3.8 cluster running on CentOS 7.7 hosts. I was investigating poor Gluster performance and heard about libgfapi, so I thought I'd give it a shot. Looking through the documentation, followed by lots of threads and BZ reports, I've done the following to enable it:

First, I shut down all VMs except the engine. Then...

On the hosts:
1. setsebool -P virt_use_glusterfs on
2. dynamic_ownership=0 in /etc/libvirt/qemu.conf

On the engine VM:
1. engine-config -s LibgfApiSupported=true --cver=4.3
2. systemctl restart ovirt-engine

VMs now fail to launch. Am I doing this correctly? I should also note that the hosts still have the Gluster domain mounted via FUSE.

Here's a relevant bit from engine.log:

2020-02-06T16:38:32.573511Z qemu-kvm: -drive file=gluster://node1.fs.trashnet.xyz:24007/vmstore/781717e5-1cff-43a1-b586-9941503544e8/images/a1d56b14-6d72-4f46-a0aa-eb0870c36bc4/a2314816-7970-49ce-a80c-ab0d1cf17c78,file.debug=4,format=qcow2,if=none,id=drive-ua-a1d56b14-6d72-4f46-a0aa-eb0870c36bc4,serial=a1d56b14-6d72-4f46-a0aa-eb0870c36bc4,werror=stop,rerror=stop,cache=none,discard=unmap,aio=native: Could not read qcow2 header: Invalid argument.

The full engine.log from one of the attempts:

2020-02-06 16:38:24,909Z INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-12) [] add VM 'df9dbac4-35c0-40ee-acd4-a1cfc959aa8b'(yumcache) to rerun treatment
2020-02-06 16:38:25,010Z ERROR [org.ovirt.engine.core.vdsbroker.monitoring.VmsMonitoring] (ForkJoinPool-1-worker-12) [] Rerun VM 'df9dbac4-35c0-40ee-acd4-a1cfc959aa8b'. Called from VDS 'node2.ovirt.trashnet.xyz'
2020-02-06 16:38:25,091Z WARN [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-216) [] EVENT_ID: USER_INITIATED_RUN_VM_FAILED(151), Failed to run VM yumcache on Host node2.ovirt.trashnet.xyz.
2020-02-06 16:38:25,166Z INFO [org.ovirt.engine.core.bll.RunVmCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] Lock Acquired to object 'EngineLock:{exclusiveLocks='[df9dbac4-35c0-40ee-acd4-a1cfc959aa8b=VM]', sharedLocks=''}'
2020-02-06 16:38:25,179Z INFO [org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] START, IsVmDuringInitiatingVDSCommand( IsVmDuringInitiatingVDSCommandParameters:{vmId='df9dbac4-35c0-40ee-acd4-a1cfc959aa8b'}), log id: 2107f52a
2020-02-06 16:38:25,181Z INFO [org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] FINISH, IsVmDuringInitiatingVDSCommand, return: false, log id: 2107f52a
2020-02-06 16:38:25,298Z INFO [org.ovirt.engine.core.bll.RunVmCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] Running command: RunVmCommand internal: false. Entities affected : ID: df9dbac4-35c0-40ee-acd4-a1cfc959aa8b Type: VMAction group RUN_VM with role type USER
2020-02-06 16:38:25,313Z INFO [org.ovirt.engine.core.bll.utils.EmulatedMachineUtils] (EE-ManagedThreadFactory-engine-Thread-216) [] Emulated machine 'pc-q35-rhel7.6.0' which is different than that of the cluster is set for 'yumcache'(df9dbac4-35c0-40ee-acd4-a1cfc959aa8b)
2020-02-06 16:38:25,382Z INFO [org.ovirt.engine.core.vdsbroker.UpdateVmDynamicDataVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] START, UpdateVmDynamicDataVDSCommand( UpdateVmDynamicDataVDSCommandParameters:{hostId='null', vmId='df9dbac4-35c0-40ee-acd4-a1cfc959aa8b', vmDynamic='org.ovirt.engine.core.common.businessentities.VmDynamic@9774a64'}), log id: 4a83911f
2020-02-06 16:38:25,417Z INFO [org.ovirt.engine.core.vdsbroker.UpdateVmDynamicDataVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] FINISH, UpdateVmDynamicDataVDSCommand, return: , log id: 4a83911f
2020-02-06 16:38:25,418Z INFO [org.ovirt.engine.core.vdsbroker.CreateVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] START, CreateVDSCommand( CreateVDSCommandParameters:{hostId='c3465ca2-395e-4c0c-b72e-b5b7153df452', vmId='df9dbac4-35c0-40ee-acd4-a1cfc959aa8b', vm='VM [yumcache]'}), log id: 5e07ba66
2020-02-06 16:38:25,420Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateBrokerVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] START, CreateBrokerVDSCommand(HostName = node1.ovirt.trashnet.xyz, CreateVDSCommandParameters:{hostId='c3465ca2-395e-4c0c-b72e-b5b7153df452', vmId='df9dbac4-35c0-40ee-acd4-a1cfc959aa8b', vm='VM [yumcache]'}), log id: 1bfa03c4
2020-02-06 16:38:25,424Z INFO [org.ovirt.engine.core.vdsbroker.builder.vminfo.VmInfoBuildUtils] (EE-ManagedThreadFactory-engine-Thread-216) [] Kernel FIPS - Guid: c3465ca2-395e-4c0c-b72e-b5b7153df452 fips: false
2020-02-06 16:38:25,435Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateBrokerVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] VM <?xml version="1.0" encoding="UTF-8"?><domain type="kvm" xmlns:ovirt-tune="http://ovirt.org/vm/tune/1.0" xmlns:ovirt-vm="http://ovirt.org/vm/1.0">
<name>yumcache</name>
<uuid>df9dbac4-35c0-40ee-acd4-a1cfc959aa8b</uuid>
<memory>1048576</memory>
<currentMemory>1048576</currentMemory>
<iothreads>1</iothreads>
<maxMemory slots="16">4194304</maxMemory>
<vcpu current="1">16</vcpu>
<sysinfo type="smbios">
<system>
<entry name="manufacturer">oVirt</entry>
<entry name="product">OS-NAME:</entry>
<entry name="version">OS-VERSION:</entry>
<entry name="serial">HOST-SERIAL:</entry>
<entry name="uuid">df9dbac4-35c0-40ee-acd4-a1cfc959aa8b</entry>
</system>
</sysinfo>
<clock offset="variable" adjustment="0">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
</clock>
<features>
<acpi/>
</features>
<cpu match="exact">
<model>EPYC</model>
<feature name="ibpb" policy="require"/>
<feature name="virt-ssbd" policy="require"/>
<topology cores="1" threads="1" sockets="16"/>
<numa>
<cell id="0" cpus="0" memory="1048576"/>
</numa>
</cpu>
<cputune/>
<devices>
<input type="tablet" bus="usb"/>
<channel type="unix">
<target type="virtio" name="ovirt-guest-agent.0"/>
<source mode="bind" path="/var/lib/libvirt/qemu/channels/df9dbac4-35c0-40ee-acd4-a1cfc959aa8b.ovirt-guest-agent.0"/>
</channel>
<channel type="unix">
<target type="virtio" name="org.qemu.guest_agent.0"/>
<source mode="bind" path="/var/lib/libvirt/qemu/channels/df9dbac4-35c0-40ee-acd4-a1cfc959aa8b.org.qemu.guest_agent.0"/>
</channel>
<controller type="pci" model="pcie-root-port" index="1">
<address bus="0x00" domain="0x0000" function="0x0" slot="0x02" type="pci" multifunction="on"/>
</controller>
<memballoon model="virtio">
<stats period="5"/>
<alias name="ua-27c77007-3a3c-4431-958d-90fd1c7257dd"/>
<address bus="0x05" domain="0x0000" function="0x0" slot="0x00" type="pci"/>
</memballoon>
<controller type="pci" model="pcie-root-port" index="2">
<address bus="0x00" domain="0x0000" function="0x1" slot="0x02" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="9">
<address bus="0x00" domain="0x0000" function="0x0" slot="0x03" type="pci" multifunction="on"/>
</controller>
<controller type="sata" index="0">
<address bus="0x00" domain="0x0000" function="0x2" slot="0x1f" type="pci"/>
</controller>
<rng model="virtio">
<backend model="random">/dev/urandom</backend>
<alias name="ua-51960005-6b95-47e9-82a7-67d5e0d6cf8a"/>
</rng>
<controller type="pci" model="pcie-root-port" index="6">
<address bus="0x00" domain="0x0000" function="0x5" slot="0x02" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="15">
<address bus="0x00" domain="0x0000" function="0x6" slot="0x03" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="13">
<address bus="0x00" domain="0x0000" function="0x4" slot="0x03" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="7">
<address bus="0x00" domain="0x0000" function="0x6" slot="0x02" type="pci"/>
</controller>
<graphics type="vnc" port="-1" autoport="yes" passwd="*****" passwdValidTo="1970-01-01T00:00:01" keymap="en-us">
<listen type="network" network="vdsm-ovirtmgmt"/>
</graphics>
<controller type="pci" model="pcie-root-port" index="16">
<address bus="0x00" domain="0x0000" function="0x7" slot="0x03" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="12">
<address bus="0x00" domain="0x0000" function="0x3" slot="0x03" type="pci"/>
</controller>
<video>
<model type="qxl" vram="32768" heads="1" ram="65536" vgamem="16384"/>
<alias name="ua-8a295e96-40c3-44de-a3b0-1c4a685a5473"/>
<address bus="0x00" domain="0x0000" function="0x0" slot="0x01" type="pci"/>
</video>
<graphics type="spice" port="-1" autoport="yes" passwd="*****" passwdValidTo="1970-01-01T00:00:01" tlsPort="-1">
<channel name="main" mode="secure"/>
<channel name="inputs" mode="secure"/>
<channel name="cursor" mode="secure"/>
<channel name="playback" mode="secure"/>
<channel name="record" mode="secure"/>
<channel name="display" mode="secure"/>
<channel name="smartcard" mode="secure"/>
<channel name="usbredir" mode="secure"/>
<listen type="network" network="vdsm-ovirtmgmt"/>
</graphics>
<controller type="pci" model="pcie-root-port" index="5">
<address bus="0x00" domain="0x0000" function="0x4" slot="0x02" type="pci"/>
</controller>
<controller type="usb" model="qemu-xhci" index="0" ports="8">
<address bus="0x02" domain="0x0000" function="0x0" slot="0x00" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="4">
<address bus="0x00" domain="0x0000" function="0x3" slot="0x02" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="3">
<address bus="0x00" domain="0x0000" function="0x2" slot="0x02" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="11">
<address bus="0x00" domain="0x0000" function="0x2" slot="0x03" type="pci"/>
</controller>
<controller type="scsi" model="virtio-scsi" index="0">
<driver iothread="1"/>
<alias name="ua-d0bf6fcd-7aa2-4658-b7cc-3dac259b7ad2"/>
<address bus="0x03" domain="0x0000" function="0x0" slot="0x00" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="8">
<address bus="0x00" domain="0x0000" function="0x7" slot="0x02" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="14">
<address bus="0x00" domain="0x0000" function="0x5" slot="0x03" type="pci"/>
</controller>
<controller type="pci" model="pcie-root-port" index="10">
<address bus="0x00" domain="0x0000" function="0x1" slot="0x03" type="pci"/>
</controller>
<controller type="virtio-serial" index="0" ports="16">
<address bus="0x04" domain="0x0000" function="0x0" slot="0x00" type="pci"/>
</controller>
<channel type="spicevmc">
<target type="virtio" name="com.redhat.spice.0"/>
</channel>
<controller type="pci" model="pcie-root"/>
<interface type="bridge">
<model type="virtio"/>
<link state="up"/>
<source bridge="vmnet"/>
<alias name="ua-ceda0ef6-9139-4e5c-8840-86fe344ecbd3"/>
<address bus="0x01" domain="0x0000" function="0x0" slot="0x00" type="pci"/>
<mac address="56:6f:91:b9:00:05"/>
<mtu size="1500"/>
<filterref filter="vdsm-no-mac-spoofing"/>
<bandwidth/>
</interface>
<disk type="file" device="cdrom" snapshot="no">
<driver name="qemu" type="raw" error_policy="report"/>
<source file="" startupPolicy="optional">
<seclabel model="dac" type="none" relabel="no"/>
</source>
<target dev="sdc" bus="sata"/>
<readonly/>
<alias name="ua-bdf99844-2d02-411b-90bb-671ee26764cb"/>
<address bus="0" controller="0" unit="2" type="drive" target="0"/>
</disk>
<disk snapshot="no" type="network" device="disk">
<target dev="sda" bus="scsi"/>
<source protocol="gluster" name="vmstore/781717e5-1cff-43a1-b586-9941503544e8/images/a1d56b14-6d72-4f46-a0aa-eb0870c36bc4/a2314816-7970-49ce-a80c-ab0d1cf17c78">
<host name="node1.fs.trashnet.xyz" port="0"/>
<seclabel model="dac" type="none" relabel="no"/>
</source>
<driver name="qemu" discard="unmap" io="native" type="qcow2" error_policy="stop" cache="none"/>
<alias name="ua-a1d56b14-6d72-4f46-a0aa-eb0870c36bc4"/>
<address bus="0" controller="0" unit="0" type="drive" target="0"/>
<boot order="1"/>
<serial>a1d56b14-6d72-4f46-a0aa-eb0870c36bc4</serial>
</disk>
<lease>
<key>df9dbac4-35c0-40ee-acd4-a1cfc959aa8b</key>
<lockspace>781717e5-1cff-43a1-b586-9941503544e8</lockspace>
<target offset="6291456" path="/rhev/data-center/mnt/glusterSD/node1.fs.trashnet.xyz:_vmstore/781717e5-1cff-43a1-b586-9941503544e8/dom_md/xleases"/>
</lease>
</devices>
<pm>
<suspend-to-disk enabled="no"/>
<suspend-to-mem enabled="no"/>
</pm>
<os>
<type arch="x86_64" machine="pc-q35-rhel7.6.0">hvm</type>
<smbios mode="sysinfo"/>
</os>
<metadata>
<ovirt-tune:qos/>
<ovirt-vm:vm>
<ovirt-vm:minGuaranteedMemoryMb type="int">512</ovirt-vm:minGuaranteedMemoryMb>
<ovirt-vm:clusterVersion>4.3</ovirt-vm:clusterVersion>
<ovirt-vm:custom/>
<ovirt-vm:device mac_address="56:6f:91:b9:00:05">
<ovirt-vm:custom/>
</ovirt-vm:device>
<ovirt-vm:device devtype="disk" name="sda">
<ovirt-vm:poolID>2ffaec76-462c-11ea-b155-00163e512202</ovirt-vm:poolID>
<ovirt-vm:volumeID>a2314816-7970-49ce-a80c-ab0d1cf17c78</ovirt-vm:volumeID>
<ovirt-vm:imageID>a1d56b14-6d72-4f46-a0aa-eb0870c36bc4</ovirt-vm:imageID>
<ovirt-vm:domainID>781717e5-1cff-43a1-b586-9941503544e8</ovirt-vm:domainID>
</ovirt-vm:device>
<ovirt-vm:launchPaused>false</ovirt-vm:launchPaused>
<ovirt-vm:resumeBehavior>kill</ovirt-vm:resumeBehavior>
</ovirt-vm:vm>
</metadata>
</domain>

2020-02-06 16:38:25,455Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateBrokerVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] FINISH, CreateBrokerVDSCommand, return: , log id: 1bfa03c4
2020-02-06 16:38:25,494Z INFO [org.ovirt.engine.core.vdsbroker.CreateVDSCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] FINISH, CreateVDSCommand, return: WaitForLaunch, log id: 5e07ba66
2020-02-06 16:38:25,495Z INFO [org.ovirt.engine.core.bll.RunVmCommand] (EE-ManagedThreadFactory-engine-Thread-216) [] Lock freed to object 'EngineLock:{exclusiveLocks='[df9dbac4-35c0-40ee-acd4-a1cfc959aa8b=VM]', sharedLocks=''}'
2020-02-06 16:38:25,533Z INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-216) [] EVENT_ID: USER_STARTED_VM(153), VM yumcache was started by admin@internal-authz (Host: node1.ovirt.trashnet.xyz).
2020-02-06 16:38:33,300Z INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-5) [] VM 'df9dbac4-35c0-40ee-acd4-a1cfc959aa8b' was reported as Down on VDS 'c3465ca2-395e-4c0c-b72e-b5b7153df452'(node1.ovirt.trashnet.xyz)
2020-02-06 16:38:33,301Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DestroyVDSCommand] (ForkJoinPool-1-worker-5) [] START, DestroyVDSCommand(HostName = node1.ovirt.trashnet.xyz, DestroyVmVDSCommandParameters:{hostId='c3465ca2-395e-4c0c-b72e-b5b7153df452', vmId='df9dbac4-35c0-40ee-acd4-a1cfc959aa8b', secondsToWait='0', gracefully='false', reason='', ignoreNoVm='true'}), log id: 1f951ea9
2020-02-06 16:38:33,478Z INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmsStatisticsFetcher] (EE-ManagedThreadFactory-engineScheduled-Thread-8) [] Fetched 2 VMs from VDS 'c3465ca2-395e-4c0c-b72e-b5b7153df452'
2020-02-06 16:38:33,545Z INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.DestroyVDSCommand] (ForkJoinPool-1-worker-5) [] FINISH, DestroyVDSCommand, return: , log id: 1f951ea9
2020-02-06 16:38:33,546Z INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-5) [] VM 'df9dbac4-35c0-40ee-acd4-a1cfc959aa8b'(yumcache) moved from 'WaitForLaunch' --> 'Down'
2020-02-06 16:38:33,623Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ForkJoinPool-1-worker-5) [] EVENT_ID: VM_DOWN_ERROR(119), VM yumcache is down with error. Exit message: internal error: qemu unexpectedly closed the monitor: [2020-02-06 16:38:31.723977] E [MSGID: 108006] [afr-common.c:5323:__afr_handle_child_down_event] 0-vmstore-replicate-0: All subvolumes are down. Going offline until at least one of them comes back up.
[2020-02-06 16:38:31.724765] I [io-stats.c:4027:fini] 0-vmstore: io-stats translator unloaded
2020-02-06T16:38:32.573511Z qemu-kvm: -drive file=gluster://node1.fs.trashnet.xyz:24007/vmstore/781717e5-1cff-43a1-b586-9941503544e8/images/a1d56b14-6d72-4f46-a0aa-eb0870c36bc4/a2314816-7970-49ce-a80c-ab0d1cf17c78,file.debug=4,format=qcow2,if=none,id=drive-ua-a1d56b14-6d72-4f46-a0aa-eb0870c36bc4,serial=a1d56b14-6d72-4f46-a0aa-eb0870c36bc4,werror=stop,rerror=stop,cache=none,discard=unmap,aio=native: Could not read qcow2 header: Invalid argument.
2020-02-06 16:38:33,624Z INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (ForkJoinPool-1-worker-5) [] add VM 'df9dbac4-35c0-40ee-acd4-a1cfc959aa8b'(yumcache) to rerun treatment
2020-02-06 16:38:33,796Z ERROR [org.ovirt.engine.core.vdsbroker.monitoring.VmsMonitoring] (ForkJoinPool-1-worker-5) [] Rerun VM 'df9dbac4-35c0-40ee-acd4-a1cfc959aa8b'. Called from VDS 'node1.ovirt.trashnet.xyz'
2020-02-06 16:38:33,899Z WARN [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-223) [] EVENT_ID: USER_INITIATED_RUN_VM_FAILED(151), Failed to run VM yumcache on Host node1.ovirt.trashnet.xyz.
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