[ovirt-users] Re: Customize oVirt engine or node iso

[张 余歌]

thanks,I need to custom a iso ,which is based on centos7,and it will 
automatically install all I want without internet(Usually we deploy ovirt via 
internet),after the iso installation is done,I can directly connect the web 
portal.

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From: Greg Sheremeta 
Sent: Saturday, December 15, 2018 9:12:25 AM
To: 张 余歌
Cc: Sandro Bonazzola; users
Subject: Re: [ovirt-users] Re: Customize oVirt engine or node iso

It's not clear exactly what you want to customize, but I suggest an automation 
tool such as ansible.

For example, when I want to set up a new ovirt-engine development environment, 
I use this ansible role that I created:
https://github.com/gregsheremeta/ovirt-engine-devel

That role will automatically set up all your dependencies, check out the code, 
and install all rpms needed to deploy hosts.

You can easily create your own roles with ansible. More examples for 
inspiration:
https://github.com/oVirt/ovirt-ansible

Hope this helps.

Best wishes,
Greg


On Fri, Dec 14, 2018 at 5:46 PM 张 余歌 
mailto:patrickstar12...@hotmail.com>> wrote:
Hi man,the link you offer  is not related to my problem,I just wanto custom a 
iso about engine or node,so that I can deploy oVirt more efficient

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From: Sandro Bonazzola mailto:sbona...@redhat.com>>
Sent: Thursday, December 13, 2018 7:19:44 PM
To: patrickstar12...@hotmail.com<mailto:patrickstar12...@hotmail.com>
Cc: users
Subject: Re: [ovirt-users] Customize oVirt engine or node iso



Il giorno gio 13 dic 2018 alle ore 03:21 max zhang 
mailto:patrickstar12...@hotmail.com>> ha scritto:
Hi,Recently I wanto customize oVirt iso for engine and node,But I have no idea 
about it,it is so fussy everytime I deploy oVirt.I need a fast way to save my 
time.I always deploy oVirt via internet to download some necessary packages 
erenow.

I would consider using foreman (and katello) for keeping a local copy of the 
needed packages so you don't need to download same package multiple times from 
internet.
You can consider using foreman / puppet or ansible to apply your customization 
to newly installed nodes.
Note you can have your ansible playbook run at deployment time in oVirt 4.2. 
RFE for this is here: https://bugzilla.redhat.com/show_bug.cgi?id=1462811



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[ovirt-users] Re: Customize oVirt engine or node iso

[张 余歌]

Hi man,the link you offer  is not related to my problem,I just wanto custom a 
iso about engine or node,so that I can deploy oVirt more efficient

获取 Outlook for Android


From: Sandro Bonazzola 
Sent: Thursday, December 13, 2018 7:19:44 PM
To: patrickstar12...@hotmail.com
Cc: users
Subject: Re: [ovirt-users] Customize oVirt engine or node iso



Il giorno gio 13 dic 2018 alle ore 03:21 max zhang 
mailto:patrickstar12...@hotmail.com>> ha scritto:
Hi,Recently I wanto customize oVirt iso for engine and node,But I have no idea 
about it,it is so fussy everytime I deploy oVirt.I need a fast way to save my 
time.I always deploy oVirt via internet to download some necessary packages 
erenow.

I would consider using foreman (and katello) for keeping a local copy of the 
needed packages so you don't need to download same package multiple times from 
internet.
You can consider using foreman / puppet or ansible to apply your customization 
to newly installed nodes.
Note you can have your ansible playbook run at deployment time in oVirt 4.2. 
RFE for this is here: https://bugzilla.redhat.com/show_bug.cgi?id=1462811



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MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

Red Hat EMEA

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[ovirt-users] Re: what the sequence of shutdown in Cluster enviroment

[张 余歌]

Thanks a lot!

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From: Simone Tiraboschi 
Sent: Tuesday, November 13, 2018 5:38:18 PM
To: patrickstar12...@hotmail.com
Cc: users
Subject: Re: [ovirt-users] Re: what the sequence of shutdown in Cluster 
enviroment



On Tue, Nov 13, 2018 at 10:23 AM max zhang 
mailto:patrickstar12...@hotmail.com>> wrote:
Thanks,I read the link  just now,But I would like to do it manually(Just 
because I am not often to do it).Would you like to tell me the sequence about 
shutdown?


I really depends if you are on hosted-engine or not and if on hyper converged 
or not, if power management is configured and so on.
If not hosted-engine at all and no power management, I'd suggest:

shutdown:
1. shutdown all VMs
2. set host1 and host2 in maintenance mode from the engine (just to ensure that 
all the locks on storage side are properly removed otherwise the restart could 
take more time)
3. shutdown the engine host
4. shutdown hosts
5. shutdown your SAN

start:
1. start the SAN
2. start hosts
3. start engine host
4. remove hosts from maintenance
5. start VMs


Like as:
shutdown>>
step1:shutdown all VMs is running
step2:shutdown host1
step2:shutdown host2
step3:shutdown engine
step4:shutdown FCSAN storage
start>>
step1:start FCSAN storage
step2:start engine
step2:start host1
step3:start host2

I don't know whether I am right.
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[ovirt-users] Re: Memory usage is inaccurate on ovirt web manager.

[张 余歌]

thanks,I will compare them later

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From: Martin Sivak 
Sent: Tuesday, November 13, 2018 8:22:13 PM
To: patrickstar12...@hotmail.com
Cc: users
Subject: Re: [ovirt-users] Memory usage is inaccurate on ovirt web manager.

Hi,

please notice the Shared Memory lines:

node2:
 Shared Memory:57%

vs.

node3:
 Shared Memory:98%

It seems you have overcommit enabled and KSM started deduplicating
pages. This frees memory when there are multiple VMs that use
identical pages. And node3 either has VMs that are similar or was just
faster when searching for identical pages.

Best regards

--
Martin Sivak


On Tue, Nov 13, 2018 at 8:13 AM,   wrote:
> Hi buddy,I encoutered a issue:
> Enviroment:ovirt 3.5,node2+node3+engine,node2 and node3 are in the same 
> cluster.
> node2:64GB memory
> node3:64GB memory
> If I try to start 25 VMs on node2,node2's Memory usage is almost up to 80%
> But if I start 25 VMs on node3,node3's Memory usage is normal,about 70%
> VMs are all the same.
> And I checked out "Hosts>General".
> on node2:
>Physical Memory:64301 MB total, 49512 MB used, 14789 MB free
>Swap Size:28567 MB total, -858090 MB used, 886657 MB free
>Shared Memory:57%
>Max free Memory for scheduling new VMs:24191 MB
>Memory Page Sharing:Active
> on node3:
>Physical Memory:64301 MB total, 37938 MB used, 26363 MB free
>Swap Size:28567 MB total, 161 MB used, 28406 MB free
>Shared Memory:98%
>Max free Memory for scheduling new VMs:24191 MB
>Memory Page Sharing:Active
>
> Best regard
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[ovirt-users] About NFS in cluster and HA

[张 余歌]

My environment:
A for Engine,NFS server
B for node1
C for nide2
Ovirt3.6.7

Everything is ready(Like ipmi).But..
1.hot-migration whitin B and C
I found It is okay,after migration ,B Or C Would change Its hostname,which 
caused failure next time to migration.(i Don't know whether firewall will make 
a affect.)

2.If i choosed to maintain the B Or C,it worked well.

3.If i try to shutdown B  ,the vm cannot startup on C automatically .and after 
B started By power manager ,i found It cannot be mount the datacentre .

What is wrong?

Best regard


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[ovirt-users] About gpu Full GPU virtualization in ovirt 3.6

[张 余歌]

Hello,friends. 
I Don't know whether Someone had test All vms was sharing only a single 
physical GPU.
I read the released note About ovirt3.6,i Just saw About Host dev passthrough 
but vGPUs
Can you tell me whether ovirt support Full GPU virtualization ?
Best regard

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[ovirt-users] About Template Sub Version

[张 余歌]

Hello,Friends.

I wanto use "Template Sub Version = latest" +"Stateless status" to realize some 
function,But I find I will loss my data if I use this way,it seems I need to 
creat a FTP Server to solve this problem.Is there another good method to avoid 
data loss?thanks!
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[ovirt-users] About qemu's CPU up to 400-500%

[张 余歌]

hello,friends!

It is weird that it showed qemu' CPU is not normal.


#top

   PID USER  PR  NI  VIRT  RES  SHR S %CPU %MEMTIME+  COMMAND
 52313 qemu  20   0 9075m 4.3g  23m S 433.1  3.5 666:30.59 qemu-kvm
 75583 qemu  20   0 9220m 4.2g 6636 R 216.1  3.3 151:28.02 qemu-kvm
 85492 root  20   0  217m  24m 5100 R 99.7  0.0   0:36.90 python
 56704 qemu  20   0 6976m 2.2g 7400 S 60.3  1.8 306:07.15 qemu-kvm
 75590 root  20   0 000 R 45.2  0.0   7:49.30 vhost-75583
  8164 qemu  20   0 8905m 4.2g 6592 S 11.5  3.3 107:22.30 qemu-kvm
  4743 ovirt 20   0 49.3g 9.8g  21m S 10.9  7.8  62:37.25 java
  5475 root  20   0  911m  13m 6136 S 10.9  0.0  28:55.46 libvirtd
  6367 vdsm   0 -20 4258m 131m 9296 S 10.9  0.1 102:29.89 vdsm
 82409 postgres  20   0  260m  62m  21m S 10.9  0.0   0:35.59 postmaster
 24706 root  20   0 15704 2000  924 S  4.2  0.0  17:38.40 top
  6819 root  20   0 15804 2012  932 S  3.8  0.0  21:30.74 top
 77317 root  20   0 15692 1992  924 S  3.8  0.0   3:11.78 top
 85203 root  20   0 15692 1996  924 S  3.8  0.0   0:09.55 top
   178 root  20   0 000 S  3.2  0.0  14:42.95 events/15
 8 root  20   0 15692 1992  924 R  3.2  0.0   0:00.59 top
  4945 apache20   0  194m 5532 2332 S  1.3  0.0   0:27.57 httpd

It caused me cannot use vm normally!especially when i was playing video,it 
performed badly .Suddenly encountered this  condition,i don't know how to deal 
with it.Help me please!

I found the cpu usage of qemu was not so normal!But i had no idea.
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[ovirt-users] About H.264 encode in ovirt

[张 余歌]

hello,my friend,i want to be sure whether ovirt support h.264 encode?Did anyone 
know it?thanks
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Re: [ovirt-users] 转发: about vms can't migrate automatically in HA

[张 余歌]

Thanks,it seems that it must keep powermanager powerful to maintain HA

Get Outlook for Android<https://aka.ms/ghei36>



On Sun, Dec 4, 2016 at 9:30 PM +0800, "Yaniv Dary" 
<yd...@redhat.com<mailto:yd...@redhat.com>> wrote:

The manager is handling the HA. Without it the HA will not work.
I suggest to use self hosted engine to give the manager HA.


Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109

Tel : +972 (9) 7692306
8272306
Email: yd...@redhat.com<mailto:yd...@redhat.com>
IRC : ydary

On Thu, Dec 1, 2016 at 3:46 PM, 张 余歌 
<patrickstar12...@hotmail.com<mailto:patrickstar12...@hotmail.com>> wrote:




发件人: 张 余歌 <patrickstar12...@hotmail.com<mailto:patrickstar12...@hotmail.com>>
发送时间: 2016年12月1日 13:37
收件人: users@ovirt.org<mailto:users@ovirt.org>
主题: about vms can't migrate automatically in HA


hello,my enviroment :
host A : engine ,
host B : compute,host of cluster
host C : compute,host of cluster
And run a vm in host B,mount nfs on host B
i use A to provide nfs storage to host B and C as shared storage.i just want to 
realize HA without any mannul operation.

the problem is:
1,i just satified the condition of HA ,like configure power manager,vm HA 
parameters...and keep default else.
if i just maintenance host B,it works well to migrate vm,okay.

And then i power down by power manager,it seems that vm can run on host C until 
host B reboot by power manager,but it also works,it is weird ,through host B is 
down,i expect host C will mount nfs automatically ...



2, i force to power failure host B,the result is:

host B and C both turn to Non Responsive,and the storage is down,everything is 
bad ..are there some place i ignore?

it make me feel helpless.
best regard.

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[ovirt-users] 转发: about vms can't migrate automatically in HA

[张 余歌]

发件人: 张 余歌 <patrickstar12...@hotmail.com>
发送时间: 2016年12月1日 13:37
收件人: users@ovirt.org
主题: about vms can't migrate automatically in HA


hello,my enviroment :
host A : engine ,
host B : compute,host of cluster
host C : compute,host of cluster
And run a vm in host B,mount nfs on host B
i use A to provide nfs storage to host B and C as shared storage.i just want to 
realize HA without any mannul operation.

the problem is:
1,i just satified the condition of HA ,like configure power manager,vm HA 
parameters...and keep default else.
if i just maintenance host B,it works well to migrate vm,okay.

And then i power down by power manager,it seems that vm can run on host C until 
host B reboot by power manager,but it also works,it is weird ,through host B is 
down,i expect host C will mount nfs automatically ...

2, i force to power failure host B,the result is:
host B and C both turn to Non Responsive,and the storage is down,everything is 
bad ..are there some place i ignore?

it make me feel helpless.
best regard.

获取 Outlook for Android<https://aka.ms/ghei36>
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[ovirt-users] about vms can't migrate automatically in HA

[张 余歌]

hello,my enviroment :
host A : engine ,
host B : compute,host of cluster
host C : compute,host of cluster
And run a vm in host B,mount nfs on host B
i use A to provide nfs storage to host B and C as shared storage.i just want to 
realize HA without any mannul operation.

the problem is:
1,i just satified the condition of HA ,like configure power manager,vm HA 
parameters...and keep default else.
if i just maintenance host B,it works well to migrate vm,okay.

And then i power down by power manager,it seems that vm can run on host C until 
host B reboot by power manager,but it also works,it is weird ,through host B is 
down,i expect host C will mount nfs automatically ...

2, i force to power failure host B,the result is:
host B and C both turn to Non Responsive,and the storage is down,everything is 
bad ..are there some place i ignore?

it make me feel helpless.
best regard.

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[ovirt-users] about gluster to host HA

[张 余歌]

hello,each senior..
i know how to use nfs to achieve host ha,can i use gluster to achieve host HA？
if it can, how many hosts do i need to ready at least ?i google but i don't get 
some useful message
best regard

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[ovirt-users] when engine broken

[张 余歌]

recently i confused about how i can recovery engine once engine process failed
or broken for some reason.

enviroment:allinone install ovirt.3.5.x
engine installed on local host whithout any protection.i can do some engine 
backup by using command.

I refer to some way to recovery engine about disater recovery .but it seem 
maybe my stage is wrong or other issues,whould u give me some way to recover 
engine,and find my lost vm？？
thanks a lot

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[ovirt-users] about hosted engine gluster support

[张余歌]

hey ,friends!Refer to 
https://www.ovirt.org/develop/release-management/features/engine/self-hosted-engine-gluster-support/i
 meet some problem:when i process 'hosted-engine --deploy'i  show support 
iscsi,nfs3,nfs4 ,but gluster.
i should be:Please specify the storage you would like to use (glusterfs, iscsi, 
nfs3, nfs4)[nfs3]: glusterfs
i followed the stage of the link,but i failed to hosted-engine support 
gluster,maybe something else i should configure?i am so so so so 
confused!why ,please help me!
thanks.
my ovirt version is 3.5.6.
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[ovirt-users] How to recovery VM's data on SAS disk?Data domain all is local host!

[张余歌]

Dear my friend,recently i deployed ovirt-3.5.6 on my dell server with 
SSD and SAS storage.I was hopeless about disaster recovery until i found
 your github:
https://github.com/chipchaderez/ovirt-disaster-recovery-tool

Enviroment:
1:SSD which i allocate to VM's system disk ,and SAS as VM's data storage disk.
2:i use "allinone"(engine and host on the same server) to deploy ovirt.

Problem:
1:Maybe your github project will be work well in ovirt3.5.6?(because i see your 
project work on ovirt 3.6)
2:If
 My SSD disk has some deadly error,it's no doubt that it cause broken 
the server And let whole system useless!In this case,what can i do ?I 
was afraid of it for a long time
3:Would you tell me what does the ovirt's engine-backup effect?Will the engine 
backup help me???

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[ovirt-users] VM can't start after interruption of power supply

[张余歌]

dear friends:
recently i meet some problem:My company meeted interruption of power 
supply,which cause my server power off directly.when i start the server,it 
adviced to user fsck comnmand to repair FS.I did it and know my system had some 
bad block.And then i enter the ovirt's WEB administration portal normally,i try 
to start my VM,but i failed!it seems VM was locked .it tips"failed to get 
volume size:"XXX--X".which confused me a long time!!Have someone meet 
this problem as me?please give me some advice.Thanks a lot.
i try to process service vdsmd restart ,but i throw  exception:
#service vdsmd restart
--
libvirt is already configured for vdsm
vdsm: Running validate_configuration
SUCCESS: ssl configured to false. No conflicts.
vdsm: Running prepare_transient_repository
vdsm: Running syslog_available
vdsm: Running nwfilter
libvirt: Network Filter Driver error : Requested operation is not valid: 
nwfilter is in use
vdsm: Running dummybr
vdsm: Running load_needed_modules
vdsm: Running tune_system
vdsm: Running test_space
vdsm: Running test_lo
Upgrading to unified persistence if needed
Traceback (most recent call last):
  File "/usr/share/vdsm/vdsm-restore-net-config", line 346, in 
restore(args)
  File "/usr/share/vdsm/vdsm-restore-net-config", line 315, in restore
unified_restoration()
  File "/usr/share/vdsm/vdsm-restore-net-config", line 93, in 
unified_restoration
setupNetworks(nets, bonds, connectivityCheck=False, _inRollback=True)
  File "/usr/share/vdsm/network/api.py", line 666, in setupNetworks
_handleBondings(bondings, configurator, in_rollback)
  File "/usr/share/vdsm/network/api.py", line 530, in _handleBondings
destroyOnMasterRemoval='remove' in attrs)
  File "/usr/share/vdsm/network/models.py", line 242, in objectivize
mtu, _netinfo)
  File "/usr/share/vdsm/network/models.py", line 232, in _objectivizeSlaves
(nic, nicVlans or nicNet or nicBond))
network.errors.ConfigNetworkError: (24, u'nic em1 already used by ovirtmgmt')
Traceback (most recent call last):
  File "/usr/bin/vdsm-tool", line 219, in main
return tool_command[cmd]["command"](*args)
  File "/usr/lib/python2.6/site-packages/vdsm/tool/restore_nets.py", line 40, 
in restore_command
exec_restore(cmd)
  File "/usr/lib/python2.6/site-packages/vdsm/tool/restore_nets.py", line 53, 
in exec_restore
raise EnvironmentError('Failed to restore the persisted networks')
EnvironmentError: Failed to restore the persisted networks
Upgrading to v3.x networking if needed
Starting up vdsm daemon:
vdsm start [  OK  ]
---

i check engine.log
#less engine.log
INFO  [org.ovirt.engine.core.bll.RunVmCommand] (ajp--127.0.0.1-8702-4) 
[31d932f0] Lock Acquired to object EngineLock [exclusiveLocks= key: 
d6575495-5cb3-41df-9d6e-6b88186dbbb3 value: VM
, sharedLocks= ]
2016-07-23 11:30:00,931 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] 
(ajp--127.0.0.1-8702-4) [31d932f0] START, IsVmDuringInitiatingVDSCommand( vmId 
= d6575495-5cb3-41df-9d6e-6b88186dbbb3), log id: 2fbe5c73
2016-07-23 11:30:00,933 INFO  
[org.ovirt.engine.core.vdsbroker.IsVmDuringInitiatingVDSCommand] 
(ajp--127.0.0.1-8702-4) [31d932f0] FINISH, IsVmDuringInitiatingVDSCommand, 
return: false, log id: 2fbe5c73
2016-07-23 11:30:00,966 INFO  [org.ovirt.engine.core.bll.RunVmCommand] 
(org.ovirt.thread.pool-8-thread-25) [31d932f0] Running command: RunVmCommand 
internal: false. Entities affected :  ID: d6575495-5cb3-41df-9d6e-6b88186dbbb3 
Type: VMAction group VM_BASIC_OPERATIONS with role type USER
2016-07-23 11:30:00,996 INFO  
[org.ovirt.engine.core.vdsbroker.UpdateVmDynamicDataVDSCommand] 
(org.ovirt.thread.pool-8-thread-25) [31d932f0] START, 
UpdateVmDynamicDataVDSCommand(HostName = local_host, HostId = 
953cfb28-41a6-48f1-bcf5-58a741b1213b, 
vmDynamic=org.ovirt.engine.core.common.businessentities.VmDynamic@417b138a), 
log id: 1bca8285
2016-07-23 11:30:01,000 INFO  
[org.ovirt.engine.core.vdsbroker.UpdateVmDynamicDataVDSCommand] 
(org.ovirt.thread.pool-8-thread-25) [31d932f0] FINISH, 
UpdateVmDynamicDataVDSCommand, log id: 1bca8285
2016-07-23 11:30:01,005 INFO  
[org.ovirt.engine.core.vdsbroker.CreateVmVDSCommand] 
(org.ovirt.thread.pool-8-thread-25) [31d932f0] START, 
CreateVmVDSCommand(HostName = local_host, HostId = 
953cfb28-41a6-48f1-bcf5-58a741b1213b, 
vmId=d6575495-5cb3-41df-9d6e-6b88186dbbb3, vm=VM [晓峰]), log id: 196e548a
2016-07-23 11:30:01,010 INFO  
[org.ovirt.engine.core.vdsbroker.vdsbroker.CreateVDSCommand] 
(org.ovirt.thread.pool-8-thread-25) [31d932f0] START, CreateVDSCommand(HostName 
= local_host, HostId = 953cfb28-41a6-48f1-bcf5-58a741b1213b, 
vmId=d6575495-5cb3-41df-9d6e-6b88186dbbb3, vm=VM [晓峰]), log id: 566631a7
2016-07-23 11:30:01,031 INFO