Re: [ovirt-users] host timeout for remote colo

2017-08-24 Thread Yaniv Kaul 
On Thu, Aug 24, 2017 at 9:55 PM, Bill James  wrote:

> We have an ovirt master (engine) host in Los Angeles and some remote
> servers in the UK.
> Normally they work fine, but when there is a heavy load on the UK servers
> the management engine has problems with heartbeat and ends up trying to
> restart the nodes.
>

Perhaps the mgmt interface is used for traffic other than mgmt? On small
scale it's OK. For bigger scale and workloads, it's best to separate
traffic to dedicated NICs.


>
> I saw in this thread that I can change vdsHeartbeatInSeconds (
> https://www.mail-archive.com/users@ovirt.org/msg41695.html)
> but I don't really want to change it globally, just for the nodes in UK.
> Also not sure how to get the current setting of that value, only how to
> change it. How do I tell current value?  I heard default is 30 seconds.
>

To change it:
usr/share/ovirt-engine/dbscripts/engine-psql.sh -c "update vdc_options set
option_value = 90 where option_name = 'vdsHeartbeatInSeconds'



>
> ovirt-engine-4.1.0.4-1.el7.centos.noarch
>

I recommend upgrade, though not specifically due to the above issue.


>
> Or maybe its not best practice to have a cluster that far from the engine?
>

We have an Engien in Israel managing hosts in Europe and the US.
Y.


>
>
> 2017-08-24 11:27:51,921-07 WARN [org.ovirt.engine.core.vdsbroker.VdsManager]
> (DefaultQuartzScheduler3) [feefbf3f-d0e2-4a64-b008-80838d04f130] Failed
> to refresh VDS, network error, continuing, vds='ovirt1.evuk.j2noc.com'(d0
> 482635-93fd-4cc3-9c78-523078845f11): VDSGenericException:
> VDSNetworkException: Heartbeat exceeded
>
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Re: [ovirt-users] Host non-responsive - All VMs shutdown

2017-08-24 Thread Yaniv Kaul 
On Thu, Aug 24, 2017 at 11:15 PM, Wesley Stewart 
wrote:

> I saw that, but my entire environment is running on a single host (Even
> the data domain is on the same host).  How would it be possible for the
> host to basically stop talking with itself?  Isn't that a little peculiar?
>

Can you explain the setup, how all is running on a single host?
Also, if you can share the vdsm log and the messages log from the host we
can see if indeed something went down or bad on the host side.
Y.


>
> On Thu, Aug 24, 2017 at 4:09 PM, Douglas Landgraf 
> wrote:
>
>> On Thu, Aug 24, 2017 at 3:32 PM, Wesley Stewart 
>> wrote:
>> > I have noticed this a couple times now.  digging through the logs, it
>> looks
>> > like the host decided to become unresponsive:
>> >
>> > 2017-08-24 12:09:05,365-04 INFO
>> > [org.ovirt.engine.core.bll.VdsEventListener]
>> > (org.ovirt.thread.pool-6-thread-5) [56defee2]
>> > ResourceManager::vdsNotResponding entered for Host
>> > 'a1bf54c1-2890-4aae-a23d-c83ea2c664d2', 'Host IP'
>>
>>
>> Looks like the network is down in the host:
>>
>> Failed to refresh VDS, network error, continuing,
>> vds='OVIRT-Host'(a1bf54c1-2890-4aae-a23d-c83ea2c664d2):
>> java.net.SocketException: Network is unreachable
>>
>>
>>
>> >
>> > Caused by: java.net.ConnectException: Connection refused
>> >
>> > There is a lot more, but I thought dropping it into a pastebin would be
>> > better:
>> > https://pastebin.com/drPNnsGB
>> >
>> > It looks like the host stopped responding somehow but I can't quite tell
>> > how.  Any advice or input would be greatly appreciated!
>> >
>>
>>
>> Few questions:
>>
>> Are you able ping/communicate from host to engine and vice-versa?
>> In the node, do you have the ovirtmgmt interface up?
>> what's the output of systemctl status vdsmd -l  ?
>> Did you change the firewall settings?
>> Which version are you running? Did you upgrade?
>>
>> In the hypervisor, the log /var/log/vdsm/vdsm.log might help us too.
>>
>> Finally, check in the hypervisor if your vms are really down, ps aux |
>> grep qemu-kvm  should return your vms process
>>
>>
>> --
>> Cheers
>> Douglas
>>
>
>
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[ovirt-users] Ovirt 4.1 testing backup and restore Self-hosted Engine

2017-08-24 Thread wodel youchi 
Hi,

I am testing the backup and restore procedure of the Self-hosted Engine,
and I have a problem.

This haw I did the test.

I have two hypervisors hosted-engine. I am used iSCSI disk for the VM
engine.

I followed the procedure described in the Self-hosted Engine document to
execute the backup, I put the first host in maintenance mode, the I create
the backup and save it elsewhere.

Then I've create a new iscsi disk, I reinstalled the first host with the
save IP/hostname, then I followed the restore procedure to get the Manager
up and running again.
- hosted-engine --deploy
- do not execute engine-setup, restore backup first
- execute engine-setup
- remove the host from the manager
- synchronize the restored manger with the host
- finalize deployment.

all went well till this point, but I have a problem with the VM-engine, it
is shown as down in the admin portal. the ovirt-ha-agent cannot retrieve
the VM config from the shared storage.

I think the problem, is that the hosted-engine storage domain is still
pointing to the old disk of the old manager and not the new one. I don't
know where is this information is stored, in the DB or in the Manager's
config files, but when I click Manager hosted-engine domain, I can see the
old LUN grayed and the new one (which is used by the restored Manager) is
not grayed.

How can I fix this?

Regards.


Garanti
sans virus. www.avast.com

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Re: [ovirt-users] Host non-responsive - All VMs shutdown

2017-08-24 Thread Douglas Landgraf 
On Thu, Aug 24, 2017 at 4:15 PM, Wesley Stewart  wrote:
> I saw that, but my entire environment is running on a single host (Even the
> data domain is on the same host).  How would it be possible for the host to
> basically stop talking with itself?  Isn't that a little peculiar?

It should not be an issue at all, it's seems something local. So,
based on your input it looks like Hosted Engine env, please check the
network interface, firewall and others items I have shared in previous
email.


>
> On Thu, Aug 24, 2017 at 4:09 PM, Douglas Landgraf 
> wrote:
>>
>> On Thu, Aug 24, 2017 at 3:32 PM, Wesley Stewart 
>> wrote:
>> > I have noticed this a couple times now.  digging through the logs, it
>> > looks
>> > like the host decided to become unresponsive:
>> >
>> > 2017-08-24 12:09:05,365-04 INFO
>> > [org.ovirt.engine.core.bll.VdsEventListener]
>> > (org.ovirt.thread.pool-6-thread-5) [56defee2]
>> > ResourceManager::vdsNotResponding entered for Host
>> > 'a1bf54c1-2890-4aae-a23d-c83ea2c664d2', 'Host IP'
>>
>>
>> Looks like the network is down in the host:
>>
>> Failed to refresh VDS, network error, continuing,
>> vds='OVIRT-Host'(a1bf54c1-2890-4aae-a23d-c83ea2c664d2):
>> java.net.SocketException: Network is unreachable
>>
>>
>>
>> >
>> > Caused by: java.net.ConnectException: Connection refused
>> >
>> > There is a lot more, but I thought dropping it into a pastebin would be
>> > better:
>> > https://pastebin.com/drPNnsGB
>> >
>> > It looks like the host stopped responding somehow but I can't quite tell
>> > how.  Any advice or input would be greatly appreciated!
>> >
>>
>>
>> Few questions:
>>
>> Are you able ping/communicate from host to engine and vice-versa?
>> In the node, do you have the ovirtmgmt interface up?
>> what's the output of systemctl status vdsmd -l  ?
>> Did you change the firewall settings?
>> Which version are you running? Did you upgrade?
>>
>> In the hypervisor, the log /var/log/vdsm/vdsm.log might help us too.
>>
>> Finally, check in the hypervisor if your vms are really down, ps aux |
>> grep qemu-kvm  should return your vms process
>>
>>
>> --
>> Cheers
>> Douglas
>
>



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Re: [ovirt-users] Host non-responsive - All VMs shutdown

2017-08-24 Thread Wesley Stewart 
I saw that, but my entire environment is running on a single host (Even the
data domain is on the same host).  How would it be possible for the host to
basically stop talking with itself?  Isn't that a little peculiar?

On Thu, Aug 24, 2017 at 4:09 PM, Douglas Landgraf 
wrote:

> On Thu, Aug 24, 2017 at 3:32 PM, Wesley Stewart 
> wrote:
> > I have noticed this a couple times now.  digging through the logs, it
> looks
> > like the host decided to become unresponsive:
> >
> > 2017-08-24 12:09:05,365-04 INFO
> > [org.ovirt.engine.core.bll.VdsEventListener]
> > (org.ovirt.thread.pool-6-thread-5) [56defee2]
> > ResourceManager::vdsNotResponding entered for Host
> > 'a1bf54c1-2890-4aae-a23d-c83ea2c664d2', 'Host IP'
>
>
> Looks like the network is down in the host:
>
> Failed to refresh VDS, network error, continuing,
> vds='OVIRT-Host'(a1bf54c1-2890-4aae-a23d-c83ea2c664d2):
> java.net.SocketException: Network is unreachable
>
>
>
> >
> > Caused by: java.net.ConnectException: Connection refused
> >
> > There is a lot more, but I thought dropping it into a pastebin would be
> > better:
> > https://pastebin.com/drPNnsGB
> >
> > It looks like the host stopped responding somehow but I can't quite tell
> > how.  Any advice or input would be greatly appreciated!
> >
>
>
> Few questions:
>
> Are you able ping/communicate from host to engine and vice-versa?
> In the node, do you have the ovirtmgmt interface up?
> what's the output of systemctl status vdsmd -l  ?
> Did you change the firewall settings?
> Which version are you running? Did you upgrade?
>
> In the hypervisor, the log /var/log/vdsm/vdsm.log might help us too.
>
> Finally, check in the hypervisor if your vms are really down, ps aux |
> grep qemu-kvm  should return your vms process
>
>
> --
> Cheers
> Douglas
>
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Re: [ovirt-users] Host non-responsive - All VMs shutdown

2017-08-24 Thread Douglas Landgraf 
On Thu, Aug 24, 2017 at 3:32 PM, Wesley Stewart  wrote:
> I have noticed this a couple times now.  digging through the logs, it looks
> like the host decided to become unresponsive:
>
> 2017-08-24 12:09:05,365-04 INFO
> [org.ovirt.engine.core.bll.VdsEventListener]
> (org.ovirt.thread.pool-6-thread-5) [56defee2]
> ResourceManager::vdsNotResponding entered for Host
> 'a1bf54c1-2890-4aae-a23d-c83ea2c664d2', 'Host IP'


Looks like the network is down in the host:

Failed to refresh VDS, network error, continuing,
vds='OVIRT-Host'(a1bf54c1-2890-4aae-a23d-c83ea2c664d2):
java.net.SocketException: Network is unreachable



>
> Caused by: java.net.ConnectException: Connection refused
>
> There is a lot more, but I thought dropping it into a pastebin would be
> better:
> https://pastebin.com/drPNnsGB
>
> It looks like the host stopped responding somehow but I can't quite tell
> how.  Any advice or input would be greatly appreciated!
>


Few questions:

Are you able ping/communicate from host to engine and vice-versa?
In the node, do you have the ovirtmgmt interface up?
what's the output of systemctl status vdsmd -l  ?
Did you change the firewall settings?
Which version are you running? Did you upgrade?

In the hypervisor, the log /var/log/vdsm/vdsm.log might help us too.

Finally, check in the hypervisor if your vms are really down, ps aux |
grep qemu-kvm  should return your vms process


-- 
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Douglas
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[ovirt-users] Host non-responsive - All VMs shutdown

2017-08-24 Thread Wesley Stewart 
I have noticed this a couple times now.  digging through the logs, it looks
like the host decided to become unresponsive:

2017-08-24 12:09:05,365-04 INFO
 [org.ovirt.engine.core.bll.VdsEventListener]
(org.ovirt.thread.pool-6-thread-5) [56defee2]
ResourceManager::vdsNotResponding entered for Host
'a1bf54c1-2890-4aae-a23d-c83ea2c664d2', 'Host IP'

Caused by: java.net.ConnectException: Connection refused

There is a lot more, but I thought dropping it into a pastebin would be
better:
https://pastebin.com/drPNnsGB

It looks like the host stopped responding somehow but I can't quite tell
how.  Any advice or input would be greatly appreciated!
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[ovirt-users] host timeout for remote colo

2017-08-24 Thread Bill James 
We have an ovirt master (engine) host in Los Angeles and some remote 
servers in the UK.
Normally they work fine, but when there is a heavy load on the UK 
servers the management engine has problems with heartbeat and ends up 
trying to restart the nodes.


I saw in this thread that I can change vdsHeartbeatInSeconds 
(https://www.mail-archive.com/users@ovirt.org/msg41695.html)

but I don't really want to change it globally, just for the nodes in UK.
Also not sure how to get the current setting of that value, only how to 
change it. How do I tell current value?  I heard default is 30 seconds.


ovirt-engine-4.1.0.4-1.el7.centos.noarch

Or maybe its not best practice to have a cluster that far from the engine?


2017-08-24 11:27:51,921-07 WARN 
[org.ovirt.engine.core.vdsbroker.VdsManager] (DefaultQuartzScheduler3) 
[feefbf3f-d0e2-4a64-b008-80838d04f130] Failed to refresh VDS, network 
error, continuing, 
vds='ovirt1.evuk.j2noc.com'(d0482635-93fd-4cc3-9c78-523078845f11): 
VDSGenericException: VDSNetworkException: Heartbeat exceeded


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Re: [ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Gianluca Cecchi 
On Thu, Aug 24, 2017 at 3:59 PM, Ralf Schenk  wrote:

> Hello,
>
> I don't want to migrate a "storage domain" but a VM from Host to Host.
> Live migration of a storage domain migrates all the contents of a storage
> domain to another one, as I unterstand.
>
> Bye
>
>
Opsss, sorry: I misunderstood the announcement phrase.
This moreover prevented me from testing it... Now I'm going to try ;-)
Sorry again for the confusion
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Re: [ovirt-users] ovirt reports

2017-08-24 Thread Mahdi Adnan 
Thank you very much Shirly.


--

Respectfully
Mahdi A. Mahdi


From: Shirly Radco 
Sent: Wednesday, August 23, 2017 11:18:14 AM
To: Mahdi Adnan
Cc: Ovirt Users
Subject: Re: [ovirt-users] ovirt reports

Hi Mahdi,

oVirt reports has been deprecated in 4.0.
We are working on the new oVirt metrics store solution.
Please see 
http://www.ovirt.org/develop/release-management/features/metrics/metrics-store/

Best regards,


--

SHIRLY RADCO

BI SOFTWARE ENGINEER

Red Hat Israel

[https://www.redhat.com/files/brand/email/sig-redhat.png]
TRIED. TESTED. TRUSTED.


On Mon, Aug 21, 2017 at 2:20 PM, Mahdi Adnan 
> wrote:

Hi,


Im looking into getting reports out of ovirt, the documentation is not clear on 
how to get started with reporting, and the link to ovirt reports is broken;

http://www.ovirt.org/documentation/how-to/reports/dwh/Ovirt_Reports#documentation
 how to reports dwh Ovirt Reports


Any idea how to get data from DWH ?



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Mahdi A. Mahdi


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[ovirt-users] Failed to deploy hosted-engin wih ISCSI

2017-08-24 Thread Willie Cadete 
Hello,

It's my first time using mailing list, I hope that someone could help me.

I'm trying to deploy hosted-engine on a server, but I can not use ISCSI
storage.

Configuration preview:

 --== CONFIGURATION PREVIEW ==--

  Bridge interface   : eno1
  Engine FQDN: srsp-lab-ovirt01.example.org
  Bridge name: ovirtmgmt
  Host address   : srsp-lab-srv01.example.org
  SSH daemon port: 22
  Firewall manager   : iptables
  Gateway address: 192.168.200.254
  Storage Domain type: iscsi
  LUN ID :
36f01faf000e05ff01f3659483c7c
  Image size GB  : 58
  iSCSI Portal IP Address: 192.168.130.102
  iSCSI Target Name  : iqn.1984-05.com.dell:
powervault.md3600i.6f01faf000e05ff052fd7354
  iSCSI Portal port  : 3260
  Host ID: 1
  iSCSI Portal user  :
  Console type   : vnc
  Memory size MB : 4096
  MAC address: 00:16:3e:18:85:93
  Number of CPUs : 4
  OVF archive (for disk boot): /usr/share/ovirt-engine-
appliance/ovirt-engine-appliance-4.1-20170821.1.el7.centos.ova
  Appliance version  : 4.1-20170821.1.el7.centos
  Restart engine VM after engine-setup: True
  Engine VM timezone : America/Sao_Paulo
  CPU Type   : model_SandyBridge

  Please confirm installation settings (Yes, No)[Yes]:


on hosted-setup I'm having this error message:

[ INFO  ] Creating Volume Group
[ ERROR ] Error creating Volume Group: Failed to initialize physical
device: ("[u'/dev/mapper/36f01faf000e05ff01f3659483c7c']",)
[ ERROR ] Failed to execute stage 'Misc configuration': Failed to
initialize physical device: ("[u'/dev/mapper/36f01faf000e05ff01f3659483
c7c']",)
[ INFO  ] Yum Performing yum transaction rollback
[ INFO  ] Stage: Clean up
[ INFO  ] Generating answer file '/var/lib/ovirt-hosted-engine-
setup/answers/answers-20170824112807.conf'
[ INFO  ] Stage: Pre-termination
[ INFO  ] Stage: Termination
[ ERROR ] Hosted Engine deployment failed: this system is not reliable,
please check the issue,fix and redeploy
  Log file is located at /var/log/ovirt-hosted-engine-
setup/ovirt-hosted-engine-setup-20170824112038-v09rvf.log

Thanks for any help.

Best regards
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[ovirt-users] oVirt web interface events console sorting

2017-08-24 Thread Misak Khachatryan 
Hello,

my events started appear in reverse order lower part of web interface.
Anybody have same issues?


Best regards,
Misak Khachatryan
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Re: [ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Denis Chaplygin 
Hello!

On Thu, Aug 24, 2017 at 3:55 PM, Ralf Schenk  wrote:

> nice to hear it worked for you.
>
> Attached you find the vdsm.log (from migration source) including the
> error and engine.log which looks ok.
>

Yes, most interesting part was in the vdsm log. Do you have anything
interesting in gluster logs?

And another one - can you try to run that vm (or some new vm with drives on
the same SD) on the migration target host? Will it start?
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[ovirt-users] [ANN] oVirt 4.1.6 First Release Candidate is now available

2017-08-24 Thread Lev Veyde 
The oVirt Project is pleased to announce the availability of the First
Release Candidate of oVirt 4.1.6 for testing, as of August 24th, 2017

This update is the sixth in a series of stabilization updates to the 4.1
series.

Starting from 4.1.5 oVirt supports libgfapi [5]. Using libgfapi provides a
real performance boost for ovirt when using GlusterFS .
Due  to a known issue [6], using this will break live storage migration.
This is expected to be fixed soon. If you do not use live storage
migration you can give it a try. Use [7] for more details on how to  enable
it.

This release is available now for:
* Fedora 24 (tech preview)
* Red Hat Enterprise Linux 7.3 or later
* CentOS Linux (or similar) 7.3 or later

This release supports Hypervisor Hosts running:
* Red Hat Enterprise Linux 7.3 or later
* CentOS Linux (or similar) 7.3 or later
* oVirt Node 4.1
* Fedora 24 (tech preview)

See the release notes draft [3] for installation / upgrade instructions and
a list of new features and bugs fixed.

Notes:
- oVirt Appliance is already available
- oVirt Node is already available[4]

Additional Resources:
* Read more about the oVirt 4.1.6 release highlights:
http://www.ovirt.org/release/4.1.6/
* Get more oVirt Project updates on Twitter: https://twitter.com/ovirt
* Check out the latest project news on the oVirt blog:
http://www.ovirt.org/blog/

[1] https://www.ovirt.org/community/
[2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt
[3] http://www.ovirt.org/release/4.1.6/
[4] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/
[5]
http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Features/libgfapi/
[6] https://bugzilla.redhat.com/show_bug.cgi?id=1306562
[7]
http://www.ovirt.org/develop/release-management/features/storage/glusterfs-storage-domain/

Thanks in advance,
-- 

Lev Veyde

Software Engineer, RHCE | RHCVA | MCITP

Red Hat Israel



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Re: [ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Ralf Schenk 
Hello,

I don't want to migrate a "storage domain" but a VM from Host to Host.
Live migration of a storage domain migrates all the contents of a
storage domain to another one, as I unterstand.

Bye


Am 24.08.2017 um 15:55 schrieb Gianluca Cecchi:
>
>
> On Thu, Aug 24, 2017 at 3:07 PM, Ralf Schenk  > wrote:
>
> Dear List,
>
> finally its there : Ovirt VM's can use native gluster via
> libgfapi. I was able to start a vm on gluster after setting
> "engine-config -s LibgfApiSupported=true"
>
>
> [snip] 
>
> But I'm not able to migrate the mashine live to another host in
> the cluster. Manager only states "Migration failed"
>
> I did this already years ago without management interface by only
> using libvirt commands on gluster. Why this is still not working ?
>
> Since gluster is a networked protocol I can't see any reason for it.
>
> I followed all the bugs like
> https://bugzilla.redhat.com/show_bug.cgi?id=1022961
>  since last
> year and saw them being worked on.
>
>
> Based on official announcement here, it is a known problem:
> http://lists.ovirt.org/pipermail/users/2017-August/083771.html
>
> "
> Due  to a known issue [6], using this will break live storage migration.
> This is expected to be fixed soon. If you do not use live storage
> migration you can give it a try.
>
> ...
>
> [6] https://bugzilla.redhat.com/show_bug.cgi?id=1306562
> "
> I see that it is currently in ASSIGNED state with high priority and
> severity
>
> HIH,
> Gianluca
>

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Re: [ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Ralf Schenk 
Hello,

nice to hear it worked for you.

Attached you find the vdsm.log (from migration source) including the
error and engine.log which looks ok.

Hostnames/IP-Adresses are correct and use the ovirtmgmt Network.

I checked (on both hosts):

[root@microcloud22 glusterfs]# gluster volume get gv0 storage.owner-uid
Option  Value
--  -
storage.owner-uid   36
[root@microcloud22 glusterfs]# gluster volume get gv0 storage.owner-gid
Option  Value
--  -
storage.owner-gid   36
[root@microcloud22 glusterfs]# gluster volume get gv0 server.allow-insecure
Option  Value
--  -
server.allow-insecure   on

and /etc/glusterd

root@microcloud22 glusterfs]# cat /etc/glusterfs/glusterd.vol
volume management
    type mgmt/glusterd
    option working-directory /var/lib/glusterd
    option transport-type socket
    option transport.socket.keepalive-time 10
    option transport.socket.keepalive-interval 2
    option transport.socket.read-fail-log off
    option ping-timeout 0
    option event-threads 1
    option rpc-auth-allow-insecure on
#   option transport.address-family inet6
#   option base-port 49152
end-volume

Bye


Am 24.08.2017 um 15:25 schrieb Denis Chaplygin:
> Hello!
>
> On Thu, Aug 24, 2017 at 3:07 PM, Ralf Schenk  > wrote:
>
> Responsiveness of VM is much better (already seen when Updateng OS
> Packages). 
>
> But I'm not able to migrate the mashine live to another host in
> the cluster. Manager only states "Migration failed"
>
>
> Live migration worked for me. 
>
> Cold you please provide some details? Engine/vdsm logs in +/- 10
> minutes in the vicinity of migration failure. 

-- 


*Ralf Schenk*
fon +49 (0) 24 05 / 40 83 70
fax +49 (0) 24 05 / 40 83 759
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Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, Dipl.-Kfm.
Philipp Hermanns
Aufsichtsratsvorsitzender: Wilhelm Dohmen


2017-08-24 15:29:13,761+0200 INFO  (jsonrpc/5) [jsonrpc.JsonRpcServer] RPC call 
Host.getAllVmStats succeeded in 0.00 seconds (__init__:539)
2017-08-24 15:29:13,803+0200 INFO  (jsonrpc/7) [vdsm.api] START 
repoStats(options=None) from=:::172.16.252.200,56136, flow_id=1acd6778, 
task_id=dbf6819c-a29d-4bb7-bb72-a92acd82d887 (api:46)
2017-08-24 15:29:13,803+0200 INFO  (jsonrpc/7) [vdsm.api] FINISH repoStats 
return={u'7c8deaa8-be02-4aaf-b9b4-ddc8da99ad96': {'code': 0, 'actual': True, 
'version': 4, 'acquired': True, 'delay': '0.000297791', 'lastCheck': '0.8', 
'valid': True}, u'2b2a44fc-f2bd-47cd-b7af-00be59e30a35': {'code': 0, 'actual': 
True, 'version': 0, 'acquired': True, 'delay': '0.000710249', 'lastCheck': 
'0.8', 'valid': True}, u'5d99af76-33b5-47d8-99da-1f32413c7bb0': {'code': 0, 
'actual': True, 'version': 4, 'acquired': True, 'delay': '0.000295381', 
'lastCheck': '0.8', 'valid': True}, u'a7fbaaad-7043-4391-9523-3bedcdc4fb0d': 
{'code': 0, 'actual': True, 'version': 0, 'acquired': True, 'delay': 
'0.000791434', 'lastCheck': '0.8', 'valid': True}} 
from=:::172.16.252.200,56136, flow_id=1acd6778, 
task_id=dbf6819c-a29d-4bb7-bb72-a92acd82d887 (api:52)
2017-08-24 15:29:13,807+0200 INFO  (jsonrpc/7) [jsonrpc.JsonRpcServer] RPC call 
Host.getStats succeeded in 0.00 seconds (__init__:539)
2017-08-24 15:29:14,296+0200 INFO  (jsonrpc/1) [vdsm.api] START 
migrate(params={u'incomingLimit': 2, u'src': u'microcloud22.rxmgmt.databay.de', 
u'dstqemu': u'172.16.252.124', u'autoConverge': u'true', u'tunneled': u'false', 
u'enableGuestEvents': True, u'dst': u'microcloud24.rxmgmt.databay.de:54321', 
u'convergenceSchedule': {u'init': [{u'params': [u'100'], u'name': 
u'setDowntime'}], u'stalling': [{u'action': {u'params': [u'150'], u'name': 
u'setDowntime'}, u'limit': 1}, {u'action': {u'params': [u'200'], u'name': 
u'setDowntime'}, u'limit': 2}, {u'action': {u'params': [u'300'], u'name': 
u'setDowntime'}, u'limit': 3}, {u'action': {u'params': [u'400'], u'name': 
u'setDowntime'}, u'limit': 4}, {u'action': {u'params': [u'500'], u'name': 
u'setDowntime'}, u'limit': 6}, {u'action': {u'params': [], u'name': u'abort'}, 
u'limit': -1}]}, u'vmId': u'ffb71f79-54cd-4f0e-b6b5-3670236cb497', 
u'abortOnError': u'true', u'outgoingLimit': 2, u'compressed': u'false', 
u'method': u'online', 'mode': 'remote'}) from=:::172.16.252.200,56136, 
flow_id=6c91f368-aa5d-47f4-8d4a-29f6f3005dc6 (api:46)
2017-08-24 15:29:14,298+0200 INFO  (jsonrpc/1) [vdsm.api] FINISH migrate 
return={'status': {'message': 'Migration in progress', 'code': 0},

Re: [ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Gianluca Cecchi 
On Thu, Aug 24, 2017 at 3:07 PM, Ralf Schenk  wrote:

> Dear List,
>
> finally its there : Ovirt VM's can use native gluster via libgfapi. I was
> able to start a vm on gluster after setting "engine-config -s
> LibgfApiSupported=true"
>
>
[snip]

> But I'm not able to migrate the mashine live to another host in the
> cluster. Manager only states "Migration failed"
>
> I did this already years ago without management interface by only using
> libvirt commands on gluster. Why this is still not working ?
>
> Since gluster is a networked protocol I can't see any reason for it.
>
> I followed all the bugs like https://bugzilla.redhat.com/
> show_bug.cgi?id=1022961 since last year and saw them being worked on.
>
>
Based on official announcement here, it is a known problem:
http://lists.ovirt.org/pipermail/users/2017-August/083771.html

"
Due  to a known issue [6], using this will break live storage migration.
This is expected to be fixed soon. If you do not use live storage
migration you can give it a try.

...

[6] https://bugzilla.redhat.com/show_bug.cgi?id=1306562
"
I see that it is currently in ASSIGNED state with high priority and severity

HIH,
Gianluca
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Re: [ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Denis Chaplygin 
Hello!

On Thu, Aug 24, 2017 at 3:07 PM, Ralf Schenk  wrote:

> Responsiveness of VM is much better (already seen when Updateng OS
> Packages).
>
> But I'm not able to migrate the mashine live to another host in the
> cluster. Manager only states "Migration failed"
>
>
> Live migration worked for me.

Cold you please provide some details? Engine/vdsm logs in +/- 10 minutes in
the vicinity of migration failure.
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Re: [ovirt-users] Ovirtmgmt, webinterfaces and VLANs

2017-08-24 Thread Barak Korren 
On 24 August 2017 at 15:39, Alexis HAUSER
 wrote:
>
> In the way Ovirt is currently designed, is there a way to separate the
> following elements in different VLANs :
>
> 1) Communication betweem nodes (hypervisors) and engine (manager)
> 2) Access to webadmin interface
> 3) access to user web interface
>
> It seems that the following elements all rely on ovirtmgmt, right ?

Only #1. #2 and #3 could be changed AFAIK, depending on where and how
you run the engine (Fir e.g. if you run it on a separate host, you
could attach other interfaces with other VLANs to it).


-- 
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RHV DevOps team , RHCE, RHCi
Red Hat EMEA
redhat.com | TRIED. TESTED. TRUSTED. | redhat.com/trusted
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[ovirt-users] oVirt 4.1.5 Finally GlusterFS via lbgfapi

2017-08-24 Thread Ralf Schenk 
Dear List,

finally its there : Ovirt VM's can use native gluster via libgfapi. I
was able to start a vm on gluster after setting "engine-config -s
LibgfApiSupported=true"

This was the disk definition as seen by "virsh -r dumxml myvm" on the host

   
  
  
    
  
  
  
  9c007b27-0ab7-4474-9317-a294fd04c65f
  
  
  
    

Responsiveness of VM is much better (already seen when Updateng OS
Packages).

But I'm not able to migrate the mashine live to another host in the
cluster. Manager only states "Migration failed"

I did this already years ago without management interface by only using
libvirt commands on gluster. Why this is still not working ?

Since gluster is a networked protocol I can't see any reason for it.

I followed all the bugs like
https://bugzilla.redhat.com/show_bug.cgi?id=1022961 since last year and
saw them being worked on.

Now I'm really disappointed. Running something like MySQL in a VM via
gluster via  FUSE is crap. :-(

Not being able to migrate machines in an ovirt cluster is crap, too if
one wants to stay current. A few VM's on my OVirt are running for ~200
days now while constantly upgrading to latest Ovirt Release. That needs
live migration of course.

Bye


-- 


*Ralf Schenk*
fon +49 (0) 24 05 / 40 83 70
fax +49 (0) 24 05 / 40 83 759
mail *r...@databay.de* 
    
*Databay AG*
Jens-Otto-Krag-Straße 11
D-52146 Würselen
*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


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Re: [ovirt-users] Package dependency issue

2017-08-24 Thread Yedidyah Bar David 
On Thu, Aug 24, 2017 at 3:50 PM, Abi Askushi  wrote:
> I confirm that issue has been resolved now.

Thanks for the report!

>
> On Thu, Aug 24, 2017 at 12:34 PM, Abi Askushi 
> wrote:
>>
>> Thanx!
>>
>> On Thu, Aug 24, 2017 at 11:41 AM, Yedidyah Bar David 
>> wrote:
>>>
>>> On Thu, Aug 24, 2017 at 10:53 AM, Abi Askushi 
>>> wrote:
>>> > Hi all,
>>> >
>>> > I have ovirt 4.1 with self hosted engine.
>>> > I have performed lately yum update -y on the hosts and at next yum
>>> > update at
>>> > both hosts I get the following dependency issue:
>>> >
>>> > Error: Package: rubygem-fluent-plugin-secure-forward-0.4.5-1.el7.noarch
>>> > (centos-opstools-release)
>>> >Requires: rubygem(proxifier)
>>> >
>>> > The rubygem-proxifier dependency is already installed:
>>> >
>>> > rubygem-proxifier-1.0.3-1.el7.noarch
>>> >
>>> > I have tried yum update --skip-broken and rpm -Va --nofiles --nodigest
>>> > to
>>> > see if this resolves this but the issue remains.
>>> >
>>> > Any idea how to resolve this?
>>>
>>> The missing package has been tagged for release and will be on CentOS
>>> mirrors in a few hours.
>>>
>>> See also: https://bugzilla.redhat.com/show_bug.cgi?id=1484534
>>>
>>> Best,
>>>
>>> >
>>> > Thanx,
>>> > Abi
>>> >
>>> > ___
>>> > Users mailing list
>>> > Users@ovirt.org
>>> > http://lists.ovirt.org/mailman/listinfo/users
>>> >
>>>
>>>
>>>
>>> --
>>> Didi
>>
>>
>
>
> ___
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> http://lists.ovirt.org/mailman/listinfo/users
>



-- 
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Re: [ovirt-users] Package dependency issue

2017-08-24 Thread Abi Askushi 
I confirm that issue has been resolved now.

On Thu, Aug 24, 2017 at 12:34 PM, Abi Askushi 
wrote:

> Thanx!
>
> On Thu, Aug 24, 2017 at 11:41 AM, Yedidyah Bar David 
> wrote:
>
>> On Thu, Aug 24, 2017 at 10:53 AM, Abi Askushi 
>> wrote:
>> > Hi all,
>> >
>> > I have ovirt 4.1 with self hosted engine.
>> > I have performed lately yum update -y on the hosts and at next yum
>> update at
>> > both hosts I get the following dependency issue:
>> >
>> > Error: Package: rubygem-fluent-plugin-secure-forward-0.4.5-1.el7.noarch
>> > (centos-opstools-release)
>> >Requires: rubygem(proxifier)
>> >
>> > The rubygem-proxifier dependency is already installed:
>> >
>> > rubygem-proxifier-1.0.3-1.el7.noarch
>> >
>> > I have tried yum update --skip-broken and rpm -Va --nofiles --nodigest
>> to
>> > see if this resolves this but the issue remains.
>> >
>> > Any idea how to resolve this?
>>
>> The missing package has been tagged for release and will be on CentOS
>> mirrors in a few hours.
>>
>> See also: https://bugzilla.redhat.com/show_bug.cgi?id=1484534
>>
>> Best,
>>
>> >
>> > Thanx,
>> > Abi
>> >
>> > ___
>> > Users mailing list
>> > Users@ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>> >
>>
>>
>>
>> --
>> Didi
>>
>
>
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[ovirt-users] Ovirtmgmt, webinterfaces and VLANs

2017-08-24 Thread Alexis HAUSER 
Hi, 


In the way Ovirt is currently designed, is there a way to separate the 
following elements in different VLANs : 

1) Communication betweem nodes (hypervisors) and engine (manager) 
2) Access to webadmin interface 
3) access to user web interface 

It seems that the following elements all rely on ovirtmgmt, right ? 


Regards, 
Alexis 
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[ovirt-users] Question on Datacenters / clusters / data domains

2017-08-24 Thread Eduardo Mayoral 
Hi,

First of all, sorry for the naive question, but I have not been able
to find good guidance on the docs.

I come from the VMWare environment, now I am starting to migrate
some workload from VMWare to oVirt (v4.1.4 , CentOS 7.3 hosts).

In VMWare I am used to have one datacenter, several host clusters,
and a bunch of iSCSI Datastores, but we do not map every iSCSI
LUN/datastore to every host. Actually we used to do that, but we hit
limits on the number of iSCSI paths with our infrastructure.

Rather than that, we have groups of LUNs/Datastores mapped to the
ESXi hosts which form a given VMware cluster. Then we have a couple of
datastores mapped to every ESXi in the vmware datacenter, and we use
those to store the ISO images and as storage that we use when we need to
migrate VMs between clusters for some reason.

Given the role of the Master data domain and the SPM in oVIrt it is
my understanding that I cannot replicate this kind of setup in oVirt: a
data domain in an oVirt Data Center must be available to every Host on
the Data Center: Am I right?

So, our current setup is still small, but I am concerned that as it
grows, if I stay with one Datacenter, several clusters and a group of
data domains mapped to every host I may run again into problems with the
number of iSCSI paths (the limit in VMWare was around 1024), it is easy
to reach that limit as it is (number of hosts) * (number of LUNs) *
(number of paths/LUN).

If I split my setup in several datacenters controlled by a single
oVirt-engine in order to keep the number of iSCSI paths reasonable. Can
I manually migrate VMs between Datacenters? I assume that in order to do
that, those datacenters will need to share some data domain , Can this
be done? Maybe with NFS?

Thanks for your help!

-- 
Eduardo Mayoral Jimeno (emayo...@arsys.es)
Administrador de sistemas. Departamento de Plataformas. Arsys internet.
+34 941 620 145 ext. 5153

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Re: [ovirt-users] [ANN] oVirt 4.1.5 General Availability Release is now available

2017-08-24 Thread Michal Skrivanek 

> On 24 Aug 2017, at 11:50, Chris Boot  wrote:
> 
> On 22/08/17 15:45, Lev Veyde wrote:
>> Starting 4.1.5 oVirt supports libgfapi [5]. Using libgfapi provides a
>> real performance boost for ovirt when using GlusterFS .
>> Due  to a known issue [6], using this will break live storage
>> migration.  This is expected to be fixed soon. If you do not use live
>> storage  migration you can give it a try. Use [7] for more details on
>> how to  enable it.
> 
> Hi all,
> 
> I've tried to enable this, but can't get it working. Has anyone managed
> to do this and have pointers? The instructions on the linked page seem
> to be a mixture of truly ancient (from 2013) and modern, and it's
> difficult to figure out what one actually needs to do.
> 
> I've set "option rpc-auth-allow-insecure on" in my glusterd.vol and
> "server.allow-insecure" on the relevant volume, then restarted all my
> Gluster daemons. I did a rolling restart as I can't currently shut
> everything down and bring it all back up, but I can use 'qemu-img info
> gluster:///[...]' successfully.
> 
> I've enabled LibgfApiSupported and restarted the engine. Starting VMs
> now fails: it tries to start the VM on each host and fails with the same
> message from libvirt:
> 
> libvirtd[2822]: failed to initialize gluster connection
> (src=0x7f748801ff50 priv=0x7f74880367b0): Success
> 
> Unfortunately I can't see anything of much use in vdsm.log,
> /var/log/messages, or the Gluster logs.
> 
> I'm using oVirt 4.1.5 and GlusterFS 3.10.5 on CentOS 7.3.

aside from gluster,I’d suggest to wait for CentOS 7.4 and qemu-kvm-ev 2.9, 
libvirt 3.2. I would expect few relevant fixes

> 
> Thanks,
> Chris
> 
> -- 
> Chris Boot
> bo...@bootc.net
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> 
> 

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Re: [ovirt-users] [ANN] oVirt 4.1.5 General Availability Release is now available

2017-08-24 Thread Chris Boot 
On 22/08/17 15:45, Lev Veyde wrote:
> Starting 4.1.5 oVirt supports libgfapi [5]. Using libgfapi provides a
> real performance boost for ovirt when using GlusterFS .
> Due  to a known issue [6], using this will break live storage
> migration.  This is expected to be fixed soon. If you do not use live
> storage  migration you can give it a try. Use [7] for more details on
> how to  enable it.

Hi all,

I've tried to enable this, but can't get it working. Has anyone managed
to do this and have pointers? The instructions on the linked page seem
to be a mixture of truly ancient (from 2013) and modern, and it's
difficult to figure out what one actually needs to do.

I've set "option rpc-auth-allow-insecure on" in my glusterd.vol and
"server.allow-insecure" on the relevant volume, then restarted all my
Gluster daemons. I did a rolling restart as I can't currently shut
everything down and bring it all back up, but I can use 'qemu-img info
gluster:///[...]' successfully.

I've enabled LibgfApiSupported and restarted the engine. Starting VMs
now fails: it tries to start the VM on each host and fails with the same
message from libvirt:

libvirtd[2822]: failed to initialize gluster connection
(src=0x7f748801ff50 priv=0x7f74880367b0): Success

Unfortunately I can't see anything of much use in vdsm.log,
/var/log/messages, or the Gluster logs.

I'm using oVirt 4.1.5 and GlusterFS 3.10.5 on CentOS 7.3.

Thanks,
Chris

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Re: [ovirt-users] Package dependency issue

2017-08-24 Thread Abi Askushi 
Thanx!

On Thu, Aug 24, 2017 at 11:41 AM, Yedidyah Bar David 
wrote:

> On Thu, Aug 24, 2017 at 10:53 AM, Abi Askushi 
> wrote:
> > Hi all,
> >
> > I have ovirt 4.1 with self hosted engine.
> > I have performed lately yum update -y on the hosts and at next yum
> update at
> > both hosts I get the following dependency issue:
> >
> > Error: Package: rubygem-fluent-plugin-secure-forward-0.4.5-1.el7.noarch
> > (centos-opstools-release)
> >Requires: rubygem(proxifier)
> >
> > The rubygem-proxifier dependency is already installed:
> >
> > rubygem-proxifier-1.0.3-1.el7.noarch
> >
> > I have tried yum update --skip-broken and rpm -Va --nofiles --nodigest to
> > see if this resolves this but the issue remains.
> >
> > Any idea how to resolve this?
>
> The missing package has been tagged for release and will be on CentOS
> mirrors in a few hours.
>
> See also: https://bugzilla.redhat.com/show_bug.cgi?id=1484534
>
> Best,
>
> >
> > Thanx,
> > Abi
> >
> > ___
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> > Users@ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
>
>
> --
> Didi
>
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Re: [ovirt-users] Package dependency issue

2017-08-24 Thread Yedidyah Bar David 
On Thu, Aug 24, 2017 at 10:53 AM, Abi Askushi  wrote:
> Hi all,
>
> I have ovirt 4.1 with self hosted engine.
> I have performed lately yum update -y on the hosts and at next yum update at
> both hosts I get the following dependency issue:
>
> Error: Package: rubygem-fluent-plugin-secure-forward-0.4.5-1.el7.noarch
> (centos-opstools-release)
>Requires: rubygem(proxifier)
>
> The rubygem-proxifier dependency is already installed:
>
> rubygem-proxifier-1.0.3-1.el7.noarch
>
> I have tried yum update --skip-broken and rpm -Va --nofiles --nodigest to
> see if this resolves this but the issue remains.
>
> Any idea how to resolve this?

The missing package has been tagged for release and will be on CentOS
mirrors in a few hours.

See also: https://bugzilla.redhat.com/show_bug.cgi?id=1484534

Best,

>
> Thanx,
> Abi
>
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[ovirt-users] Package dependency issue

2017-08-24 Thread Abi Askushi 
Hi all,

I have ovirt 4.1 with self hosted engine.
I have performed lately yum update -y on the hosts and at next yum update
at both hosts I get the following dependency issue:

Error: Package: rubygem-fluent-plugin-secure-forward-0.4.5-1.el7.noarch
(centos-opstools-release)
   Requires: rubygem(proxifier)

The rubygem-proxifier dependency is already installed:

rubygem-proxifier-1.0.3-1.el7.noarch

I have tried yum update --skip-broken and rpm -Va --nofiles --nodigest to
see if this resolves this but the issue remains.

Any idea how to resolve this?

Thanx,
Abi
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Re: [ovirt-users] Off hosted-engine destroy virtualization

2017-08-24 Thread Evgenia Tokar 
Hi Nikita!

Did you run hosted-engine --vm-poweroff?
If so, you shut down the hosted engine vm which runs the engine and it will
not be available.
Or did you do something else?

Thanks,
Jenny

On Mon, Aug 21, 2017 at 4:09 PM, Spickiy Nikita 
wrote:

> Hi. I try setting hosted-engine. I make cluster of two node. I run
> installation step by step as written in ovirt documentation. I add storage,
> iso domain, etc. Then i create VM. Everything working, all right. Now i
> shutdown hosted-engine and my VM also not avaliable. It normal behavior? Or
> i something doing at wrong?
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Re: [ovirt-users] Trouble with migrating hosted-engine

2017-08-24 Thread Yedidyah Bar David 
On Wed, Aug 23, 2017 at 3:27 PM, Spickiy Nikita  wrote:
> Hi, please, need me help. I trying setting oVirt 4.1 (hosted-engine). I use 
> Supermicro X10DRL-i for virtualization  and Infotrend DS 1012 RE for storage. 
> Storage connected by iscsi.  I setting all hosts (hosted-engine, 
> power-manager, storage, etc). If i shutdown host, on which running 
> hosted-engine, then hosted-engine not automatically start on available hosts. 
> In log agent last string:
>
> MainThread::INFO::2017-08-23 
> 19:19:20,767::ovf_store::112::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
>  Extracting Engine VM OVF from the OVF_STORE
>
> but in vdsm log have warning:
>
> 2017-08-23 19:10:54,820+0700 WARN  (check/loop) [storage.check] Checker 
> u'/rhev/data-center/mnt/hs.pi.local:_var_nfs-ovirt-iso-share_files/64ad0443-5023-4b35-966b-f3cfe55ce135/dom_md/metadata'
>  is blocked for 140.00 seconds (check:279)
>
> Can anyone help me? I add in attach part log.

How long did you wait?

Please wait at least 20 minutes and attach full logs.

Also please check 'hosted-engine --vm-status'.

Thanks and best regards,

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Re: [ovirt-users] OVIRT_ENGINE_DWH org.postgresql.util.PSQLException:ERROR: more than one row returned by a subquery used as an expression

2017-08-24 Thread Yedidyah Bar David 
On Wed, Aug 23, 2017 at 9:06 PM, Charles Gruener  wrote:
> After many attempts and many uninstalls, (wiping of the ovirt_engine_history 
> database, removal of the associated database user, removal of all 
> ovirt-engine-dwh folders and configs in /etc, and so on...) and reinstalls, I 
> can't figure out how to get Data Warehouse to work properly.  The dashboard 
> isn't getting populated with data and this error message constantly shows in 
> Alerts and Events in the Web Administration console:
>
> "ETL service sampling has encountered an error. Please consult the service 
> log for more details."
>
> Also, the file /var/log/ovirt-engine-dwh/ovirt-engine-dwhd.log shows the 
> following error repeatedly:
>
> 2017-XX-XX 
> 13:45:01|BFAPtJ|3TsCll|B5fdZD|OVIRT_ENGINE_DWH|SampleTimeKeepingJob|Default|6|Java
>  Exception|tRunJob_1|java.lang.RuntimeException:Child job running failed|1
> Exception in component tJDBCInput_9
> org.postgresql.util.PSQLException: ERROR: more than one row returned by a 
> subquery used as an expression
> at 
> org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157)
> at 
> org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886)
> at 
> org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
> at 
> org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555)
> at 
> org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:403)
> at 
> org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:283)
> at 
> ovirt_engine_dwh.configurationsync_4_1.ConfigurationSync.tJDBCInput_9Process(ConfigurationSync.java:3727)

This is the first line in the above stack trace that is from dwh (not
from postgresql libraries).

If you check the sources looking at this file around line 3727, you see:

String dbquery_tJDBCInput_9 =
"SELECT\nuser_id,\nfirst_name,\nlast_name,\ndomain,\n
  username,\ndepartment,\nuser_role_title,\nemail,\n
external_id,\nactive,\ncreate_date,\nupdate_date\nFROM
dwh_users_history_view";

globalMap.put("tJDBCInput_9_QUERY",
dbquery_tJDBCInput_9);

java.sql.ResultSet rs_tJDBCInput_9 = null;
try {
rs_tJDBCInput_9 = stmt_tJDBCInput_9

.executeQuery(dbquery_tJDBCInput_9);

So I guess the query selects stuff from dwh_users_history_view. This
view is defined in the engine sources (not dwh), if you search its
name you find it at packaging/dbscripts/create_dwh_views.sql:

CREATE OR REPLACE VIEW dwh_users_history_view AS

SELECT user_id,
name AS first_name,
surname AS last_name,
DOMAIN,
username,
department,
'' AS user_role_title,
email,
external_id,
TRUE AS active,
_create_date AS create_date,
_update_date AS update_date
FROM users
WHERE (
(
_create_date > (
SELECT var_datetime
FROM dwh_history_timekeeping
WHERE (var_name = 'lastSync')
)
)
OR (
_update_date > (
SELECT var_datetime
FROM dwh_history_timekeeping AS history_timekeeping_1
WHERE (var_name = 'lastSync')
)
)
);

So, as you see, it has subqueries selecting from
dwh_history_timekeeping, which is a table in the engine db used by dwh
to track various stuff about its operation.

> at 
> ovirt_engine_dwh.configurationsync_4_1.ConfigurationSync$2.run(ConfigurationSync.java:60001)
> 2017-XX-XX 
> 13:45:01|wqfyxb|3TsCll|76BFD3|OVIRT_ENGINE_DWH|ConfigurationSync|Default|6|Java
>  Exception|tJDBCInput_9|org.postgresql.util.PSQLException:ERROR: more than 
> one row returned by a subquery used as an expression|1
> Exception in component tRunJob_1
> java.lang.RuntimeException: Child job running failed
> at 
> ovirt_engine_dwh.samplerunjobs_4_1.SampleRunJobs.tRunJob_1Process(SampleRunJobs.java:1198)
> at 
> ovirt_engine_dwh.samplerunjobs_4_1.SampleRunJobs.tRunJob_4Process(SampleRunJobs.java:1000)
> at 
> ovirt_engine_dwh.samplerunjobs_4_1.SampleRunJobs.tJDBCConnection_2Process(SampleRunJobs.java:767)
> at 
> ovirt_engine_dwh.samplerunjobs_4_1.SampleRunJobs.tJDBCConnection_1Process(SampleRunJobs.java:642)
> at 
> ovirt_engine_dwh.samplerunjobs_4_1.SampleRunJobs$2.run(SampleRunJobs.java:2683)
> 2017-XX-XX 
> 13:45:01|76BFD3|3TsCll|FlSijV|OVIRT_ENGINE_DWH|SampleRunJobs|Default|6|Java 
> Exception|tRunJob_1|java.lang.RuntimeException:Child job running failed|1
> Exception in component tRunJob_1
> java.lang.RuntimeException: Child job running failed
> at 
>