[ovirt-users] 2 hosts starting the engine at the same time?

Mon Jul 10 06:11:55 UTC 2017

On Sun, Jul 9, 2017 at 11:12 PM, Gianluca Cecchi
<gianluca.cecchi at gmail.com> wrote:
>
>
> On Sun, Jul 9, 2017 at 9:54 PM, Gianluca Cecchi <gianluca.cecchi at gmail.com>
> wrote:
>>
>> Hello.
>> I'm on 4.1.3 with self hosted engine and glusterfs as storage.
>> I updated the kernel  on engine so I executed these steps:
>>
>> - enable global maintenace from the web admin gui
>> - wait some minutes
>> - shutdown the engine vm from inside its OS
>> - wait some minutes
>> - execute on one host
>> [root at ovirt02 ~]# hosted-engine --set-maintenance --mode=none
>>
>> I see that the qemu-kvm process for the engine starts on two hosts and
>> then on one of them it gets a "kill -15" and stops
>> Is it expected behaviour?

In the 'hosted-engine' script itself, in the function cmd_vm_start,
there is a comment:
    # TODO: Check first the sanlock status, and if allows:

Perhaps ha-agent checks sanlock status before starting the VM?
Adding Martin.

Please also check/share agent.log.

>> It seems somehow dangerous to me..
>
>
> And I don't know how related, but the engine vm doesn't come up.
> Connecting to its vnc console I get it "booting from hard disk" ....:
> https://drive.google.com/file/d/0BwoPbcrMv8mvOEJWeVRvNThmTWc/view?usp=sharing
>
> Gluster volume for the engine vm storage domain seems ok...
>
> [root at ovirt01 vdsm]# gluster volume heal engine info
> Brick ovirt01.localdomain.local:/gluster/brick1/engine
> Status: Connected
> Number of entries: 0
>
> Brick ovirt02.localdomain.local:/gluster/brick1/engine
> Status: Connected
> Number of entries: 0
>
> Brick ovirt03.localdomain.local:/gluster/brick1/engine
> Status: Connected
> Number of entries: 0
>
> [root at ovirt01 vdsm]#
>
>
> and in HostedEngine.log
>
> 2017-07-09 19:59:20.660+0000: starting up libvirt version: 2.0.0, package:
> 10.el7_3.9 (CentOS BuildSystem <http://bugs.centos.org>,
> 2017-05-25-20:52:28, c1bm.rdu2.centos.org), qemu version: 2.6.0
> (qemu-kvm-ev-2.6.0-28.el7.10.1), hostname: ovirt01.localdomain.local
> LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
> QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name
> guest=HostedEngine,debug-threads=on -S -object
> secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-3-HostedEngine/master-key.aes
> -machine pc-i440fx-rhel7.3.0,accel=kvm,usb=off -cpu Broadwell,+rtm,+hle -m
> 6144 -realtime mlock=off -smp 1,maxcpus=16,sockets=16,cores=1,threads=1
> -uuid 87fd6bdb-535d-45b8-81d4-7e3101a6c364 -smbios
> 'type=1,manufacturer=oVirt,product=oVirt
> Node,version=7-3.1611.el7.centos,serial=564D777E-B638-E808-9044-680BA4957704,uuid=87fd6bdb-535d-45b8-81d4-7e3101a6c364'
> -no-user-config -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-3-HostedEngine/monitor.sock,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc
> base=2017-07-09T19:59:20,driftfix=slew -global
> kvm-pit.lost_tick_policy=discard -no-hpet -no-reboot -boot strict=on -device
> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device
> virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive
> file=/var/run/vdsm/storage/e9e4a478-f391-42e5-9bb8-ed22a33e5cab/cf8b8f4e-fa01-457e-8a96-c5a27f8408f8/94c46bac-0a9f-49e8-9188-627fa0caf2b6,format=raw,if=none,id=drive-virtio-disk0,serial=cf8b8f4e-fa01-457e-8a96-c5a27f8408f8,cache=none,werror=stop,rerror=stop,aio=threads
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
> -drive if=none,id=drive-ide0-1-0,readonly=on -device
> ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev
> tap,fd=30,id=hostnet0,vhost=on,vhostfd=32 -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=00:16:3e:0a:e7:ba,bus=pci.0,addr=0x3
> -chardev
> socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/87fd6bdb-535d-45b8-81d4-7e3101a6c364.com.redhat.rhevm.vdsm,server,nowait
> -device
> virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm
> -chardev
> socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/87fd6bdb-535d-45b8-81d4-7e3101a6c364.org.qemu.guest_agent.0,server,nowait
> -device
> virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0
> -chardev
> socket,id=charchannel2,path=/var/lib/libvirt/qemu/channels/87fd6bdb-535d-45b8-81d4-7e3101a6c364.org.ovirt.hosted-engine-setup.0,server,nowait
> -device
> virtserialport,bus=virtio-serial0.0,nr=3,chardev=charchannel2,id=channel2,name=org.ovirt.hosted-engine-setup.0
> -chardev pty,id=charconsole0 -device
> virtconsole,chardev=charconsole0,id=console0 -vnc 0:0,password -device
> cirrus-vga,id=video0,bus=pci.0,addr=0x2 -object
> rng-random,id=objrng0,filename=/dev/urandom -device
> virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x6 -msg timestamp=on
> char device redirected to /dev/pts/1 (label charconsole0)
> warning: host doesn't support requested feature: CPUID.07H:EBX.erms [bit 9]
>
>
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-- 
Didi