[ovirt-users] SPICE Through a Router? Squid?

Nikolai Sednev nsednev at redhat.com
Tue Jun 2 11:49:42 UTC 2015


Works perfectly fine for me with VPN towards the environment. 
I suppose you should use VPN level security for your connectivity to your data center resources. 


Thanks in advance. 

Best regards, 
Nikolai 
____________________ 
Nikolai Sednev 
Senior Quality Engineer at Compute team 
Red Hat Israel 
34 Jerusalem Road, 
Ra'anana, Israel 43501 

Tel: +972 9 7692043 
Mobile: +972 52 7342734 
Email: nsednev at redhat.com 
IRC: nsednev 

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To: users at ovirt.org 
Sent: Monday, June 1, 2015 2:39:29 AM 
Subject: Users Digest, Vol 44, Issue 127 

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Today's Topics: 

1. Re: gluster config in 4 node cluster (???? ???????????) 
2. SPICE Through a Router? Squid? (alexmcwhirter at triadic.us) 
3. Bug in Snapshot Removing (Soeren Malchow) 
4. Re: gluster config in 4 node cluster (Soeren Malchow) 
5. Re: Bug in Snapshot Removing (Soeren Malchow) 
6. Re: Bug in Snapshot Removing (Soeren Malchow) 


---------------------------------------------------------------------- 

Message: 1 
Date: Sun, 31 May 2015 19:32:39 +0300 
From: ???? ??????????? <y.poltoratskiy at gmail.com> 
To: users at ovirt.org 
Subject: Re: [ovirt-users] gluster config in 4 node cluster 
Message-ID: <556B37A7.1000508 at gmail.com> 
Content-Type: text/plain; charset="utf-8"; Format="flowed" 


Hi, 

As for me, I would build one cluster with gluster service only based on 
two nodes (replica 2), and the other one with virt service only based on 
other two nodes. I think this variant is more scalable in future. 

PS. I am a new in oVirt, so do not except that I am wrong. 


28.05.2015 23:11, paf1 at email.cz ?????: 
> Hello, 
> How to optimal configure 4 node cluster for any one node goes to 
> maintenance without stopping VM ?? 
> 
> a) replica 4 - but it takes a lot of space 
> b) disperse 3+1 ( raid 5 ) - but bad performance and not visible by 
> oVirt 3.7.2 
> c) stripe2+replica2 = but VM paused 
> 
> any other idea ? 
> regs. 
> Pa. 
> 
> 
> _______________________________________________ 
> Users mailing list 
> Users at ovirt.org 
> http://lists.ovirt.org/mailman/listinfo/users 

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Message: 2 
Date: Sun, 31 May 2015 18:54:56 -0400 
From: alexmcwhirter at triadic.us 
To: users at ovirt.org 
Subject: [ovirt-users] SPICE Through a Router? Squid? 
Message-ID: <8bea728a4fb4d5cd804c6aa50cb5e6c8 at triadic.us> 
Content-Type: text/plain; charset=US-ASCII; format=flowed 

I have a dual host setup working right now. Host 1 runs the engine and 
is also a node. Host 2 does DB storage and NFS storage. The WebSockets 
proxy is running on Host1. 

My question is how do I run this behind a router? I am correct in 
understanding that the WebSockets proxy acts as the spice access point 
for all of the nodes in the cluster / datacetner? or does each node host 
need a direct connection for spice? 

the .vv file I receive from the management console specifies the 
engine's private IP address which works fine when inside the ovirt 
management LAN, but it wont route from WAN obviously. 

So essentially i guess i need squid to rewrite the served vv file to the 
public IP and somehow make the ports work correctly, which is difficult 
considering every time a VM is created it also adds its own spice port, 
correct? 


------------------------------ 

Message: 3 
Date: Sun, 31 May 2015 22:56:40 +0000 
From: Soeren Malchow <soeren.malchow at mcon.net> 
To: "libvirt-users at redhat.com" <libvirt-users at redhat.com>, users 
<users at ovirt.org> 
Subject: [ovirt-users] Bug in Snapshot Removing 
Message-ID: <D1915E46.D966%soeren.malchow at mcon.net> 
Content-Type: text/plain; charset="us-ascii" 

Dear all 

I am not sure if the mail just did not get any attention between all the mails and this time it is also going to the libvirt mailing list. 

I am experiencing a problem with VM becoming unresponsive when removing Snapshots (Live Merge) and i think there is a serious problem. 

Here are the previous mails, 

http://lists.ovirt.org/pipermail/users/2015-May/033083.html 

The problem is on a system with everything on the latest version, CentOS 7.1 and ovirt 3.5.2.1 all upgrades applied. 

This Problem did NOT exist before upgrading to CentOS 7.1 with an environment running ovirt 3.5.0 and 3.5.1 and Fedora 20 with the libvirt-preview repo activated. 

I think this is a bug in libvirt, not ovirt itself, but i am not sure. The actual file throwing the exception is in VDSM (/usr/share/vdsm/virt/vm.py, line 697). 

We are very willing to help, test and supply log files in anyway we can. 

Regards 
Soeren 

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Message: 4 
Date: Sun, 31 May 2015 23:32:53 +0000 
From: Soeren Malchow <soeren.malchow at mcon.net> 
To: ???? ??????????? <y.poltoratskiy at gmail.com>, "users at ovirt.org" 
<users at ovirt.org> 
Subject: Re: [ovirt-users] gluster config in 4 node cluster 
Message-ID: <D19165E2.D96E%soeren.malchow at mcon.net> 
Content-Type: text/plain; charset="windows-1251" 

Hi 

For a production environment i would not build a 2 node gluster, i would build at least 3 nodes to have it much easier with the quorum. 

Taking into account that you can use commodity hardware i would also suggest to split the services, but i would go for at least 3 gluster nodes ? which add up to at least 5 nodes for a HA system. 

If you want 4 in any case, then my suggestion would be to go for 4 replicas, each node has anything that it needs to run and you can basically use NFS to localhost for the storage which would make the nodes always access the local storage for the VMS, availability wise it makes no difference. 

Cheers 
Soeren 

From: ???? ??????????? <y.poltoratskiy at gmail.com<mailto:y.poltoratskiy at gmail.com>> 
Date: Sunday 31 May 2015 18:32 
To: "users at ovirt.org<mailto:users at ovirt.org>" <users at ovirt.org<mailto:users at ovirt.org>> 
Subject: Re: [ovirt-users] gluster config in 4 node cluster 


Hi, 

As for me, I would build one cluster with gluster service only based on two nodes (replica 2), and the other one with virt service only based on other two nodes. I think this variant is more scalable in future. 

PS. I am a new in oVirt, so do not except that I am wrong. 


28.05.2015 23:11, paf1 at email.cz<mailto:paf1 at email.cz> ?????: 
Hello, 
How to optimal configure 4 node cluster for any one node goes to maintenance without stopping VM ?? 

a) replica 4 - but it takes a lot of space 
b) disperse 3+1 ( raid 5 ) - but bad performance and not visible by oVirt 3.7.2 
c) stripe2+replica2 = but VM paused 

any other idea ? 
regs. 
Pa. 



_______________________________________________ 
Users mailing list 
Users at ovirt.org<mailto:Users at ovirt.org>http://lists.ovirt.org/mailman/listinfo/users 

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Message: 5 
Date: Sun, 31 May 2015 23:35:36 +0000 
From: Soeren Malchow <soeren.malchow at mcon.net> 
To: Soeren Malchow <soeren.malchow at mcon.net>, 
"libvirt-users at redhat.com" <libvirt-users at redhat.com>, users 
<users at ovirt.org> 
Subject: Re: [ovirt-users] Bug in Snapshot Removing 
Message-ID: <D1916735.D978%soeren.malchow at mcon.net> 
Content-Type: text/plain; charset="windows-1252" 

Small addition again: 

This error shows up in the log while removing snapshots WITHOUT rendering the Vms unresponsive 

? 
Jun 01 01:33:45 mc-dc3ham-compute-02-live.mc.mcon.net libvirtd[1657]: Timed out during operation: cannot acquire state change lock 
Jun 01 01:33:45 mc-dc3ham-compute-02-live.mc.mcon.net vdsm[6839]: vdsm vm.Vm ERROR vmId=`56848f4a-cd73-4eda-bf79-7eb80ae569a9`::Error getting block job info 
Traceback (most recent call last): 
File "/usr/share/vdsm/virt/vm.py", line 5759, in queryBlockJobs? 

? 



From: Soeren Malchow <soeren.malchow at mcon.net<mailto:soeren.malchow at mcon.net>> 
Date: Monday 1 June 2015 00:56 
To: "libvirt-users at redhat.com<mailto:libvirt-users at redhat.com>" <libvirt-users at redhat.com<mailto:libvirt-users at redhat.com>>, users <users at ovirt.org<mailto:users at ovirt.org>> 
Subject: [ovirt-users] Bug in Snapshot Removing 

Dear all 

I am not sure if the mail just did not get any attention between all the mails and this time it is also going to the libvirt mailing list. 

I am experiencing a problem with VM becoming unresponsive when removing Snapshots (Live Merge) and i think there is a serious problem. 

Here are the previous mails, 

http://lists.ovirt.org/pipermail/users/2015-May/033083.html 

The problem is on a system with everything on the latest version, CentOS 7.1 and ovirt 3.5.2.1 all upgrades applied. 

This Problem did NOT exist before upgrading to CentOS 7.1 with an environment running ovirt 3.5.0 and 3.5.1 and Fedora 20 with the libvirt-preview repo activated. 

I think this is a bug in libvirt, not ovirt itself, but i am not sure. The actual file throwing the exception is in VDSM (/usr/share/vdsm/virt/vm.py, line 697). 

We are very willing to help, test and supply log files in anyway we can. 

Regards 
Soeren 

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Message: 6 
Date: Sun, 31 May 2015 23:39:24 +0000 
From: Soeren Malchow <soeren.malchow at mcon.net> 
To: Soeren Malchow <soeren.malchow at mcon.net>, 
"libvirt-users at redhat.com" <libvirt-users at redhat.com>, users 
<users at ovirt.org> 
Subject: Re: [ovirt-users] Bug in Snapshot Removing 
Message-ID: <D1916815.D97C%soeren.malchow at mcon.net> 
Content-Type: text/plain; charset="windows-1252" 

And sorry, another update, it does kill the VM partly, it was still pingable when i wrote the last mail, but no ssh and no spice console possible 

From: Soeren Malchow <soeren.malchow at mcon.net<mailto:soeren.malchow at mcon.net>> 
Date: Monday 1 June 2015 01:35 
To: Soeren Malchow <soeren.malchow at mcon.net<mailto:soeren.malchow at mcon.net>>, "libvirt-users at redhat.com<mailto:libvirt-users at redhat.com>" <libvirt-users at redhat.com<mailto:libvirt-users at redhat.com>>, users <users at ovirt.org<mailto:users at ovirt.org>> 
Subject: Re: [ovirt-users] Bug in Snapshot Removing 

Small addition again: 

This error shows up in the log while removing snapshots WITHOUT rendering the Vms unresponsive 

? 
Jun 01 01:33:45 mc-dc3ham-compute-02-live.mc.mcon.net libvirtd[1657]: Timed out during operation: cannot acquire state change lock 
Jun 01 01:33:45 mc-dc3ham-compute-02-live.mc.mcon.net vdsm[6839]: vdsm vm.Vm ERROR vmId=`56848f4a-cd73-4eda-bf79-7eb80ae569a9`::Error getting block job info 
Traceback (most recent call last): 
File "/usr/share/vdsm/virt/vm.py", line 5759, in queryBlockJobs? 

? 



From: Soeren Malchow <soeren.malchow at mcon.net<mailto:soeren.malchow at mcon.net>> 
Date: Monday 1 June 2015 00:56 
To: "libvirt-users at redhat.com<mailto:libvirt-users at redhat.com>" <libvirt-users at redhat.com<mailto:libvirt-users at redhat.com>>, users <users at ovirt.org<mailto:users at ovirt.org>> 
Subject: [ovirt-users] Bug in Snapshot Removing 

Dear all 

I am not sure if the mail just did not get any attention between all the mails and this time it is also going to the libvirt mailing list. 

I am experiencing a problem with VM becoming unresponsive when removing Snapshots (Live Merge) and i think there is a serious problem. 

Here are the previous mails, 

http://lists.ovirt.org/pipermail/users/2015-May/033083.html 

The problem is on a system with everything on the latest version, CentOS 7.1 and ovirt 3.5.2.1 all upgrades applied. 

This Problem did NOT exist before upgrading to CentOS 7.1 with an environment running ovirt 3.5.0 and 3.5.1 and Fedora 20 with the libvirt-preview repo activated. 

I think this is a bug in libvirt, not ovirt itself, but i am not sure. The actual file throwing the exception is in VDSM (/usr/share/vdsm/virt/vm.py, line 697). 

We are very willing to help, test and supply log files in anyway we can. 

Regards 
Soeren 

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