--=_alternative 002D6EBB48257CF4_= Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="US-ASCII" Dear all, I know oVirt Host (VM) can be HA and cluster, all VM can be migrate=20 between all operational Node. Since the main oVirt Engine is standalone, event shelf-hosted engine, it=20 still is a single Engine. I want to ensure my Engine can be HA, how should I do? Do I need to create = a Cluster Linux first? Thanks Best Regards, Kevin Tang ---------------------------------------------------------------------------= ----------------------------------------- AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI University of Macau Tel: (+853) 8397-8035 --=_alternative 002D6EBB48257CF4_= Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="US-ASCII" <font size=3D2 face=3D"sans-serif">Dear all,</font><br><br><font size=3D2 f= ace=3D"sans-serif">I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.</font><br><br>= <font size=3D2 face=3D"sans-serif">Since the main oVirt Engine is standalon= e, event shelf-hosted engine, it still is a single Engine.</font><br><br><font= size=3D2 face=3D"sans-serif">I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?</font><br><br><= font size=3D2 face=3D"sans-serif">Thanks</font><br><font size=3D2 face=3D"s= ans-serif"><br><br>Best Regards,<br>Kevin Tang<br>-------------------------= ---------------------------------------------------------------------------= ----------------<br>AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL = VLSI<br>University of Macau<br>Tel: (+853) 8397-8035</font><BR> --=_alternative 002D6EBB48257CF4_=--
On 06/11/2014 04:16 AM, KevinTang@umac.mo wrote:
Dear all,
I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.
Since the main oVirt Engine is standalone, event shelf-hosted engine, it still is a single Engine.
I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?
hosted-engine has built-in HA mechanism for the engine, so if the host its running on has an issue, another host will launch the hosted engine.
--=_alternative 00358D4A48257CF5_= Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="US-ASCII" Dear all, If not using self hosted-engine solution, my Engine will install in=20 dedicate machine. How should I make the engine become HA? Thanks Best Regards, Kevin Tang ---------------------------------------------------------------------------= ----------------------------------------- AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI University of Macau Tel: (+853) 8397-8035 From: Itamar Heim <iheim@redhat.com> To: KevinTang@umac.mo, users@ovirt.org Date: 06/12/2014 04:07 AM Subject: Re: [ovirt-users] Engine HA? On 06/11/2014 04:16 AM, KevinTang@umac.mo wrote:
Dear all,
I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.
Since the main oVirt Engine is standalone, event shelf-hosted engine, it still is a single Engine.
I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?
hosted-engine has built-in HA mechanism for the engine, so if the host=20 its running on has an issue, another host will launch the hosted engine. --=_alternative 00358D4A48257CF5_= Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="US-ASCII" <font size=3D2 face=3D"sans-serif">Dear all,</font><br><br><font size=3D2 f= ace=3D"sans-serif">If not using self hosted-engine solution, my Engine will install in dedicate machine. How should I make the engine become HA?</font><br><br><font size=3D2 face=3D"sans-serif">Thanks<br><br>B= est Regards,<br>Kevin Tang<br>---------------------------------------------= -----------------------------------------------------------------------<br>= AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI<br>University o= f Macau<br>Tel: (+853) 8397-8035</font><br><br><br><br><font size=3D1 color= =3D#5f5f5f face=3D"sans-serif">From: </font><font size=3D1 face=3D"sans-serif">Itamar Heim <iheim@redha= t.com></font><br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">To: = </font><font size=3D1 face=3D"sans-serif">KevinTang@umac.mo, users@ovirt.org</font><br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif= ">Date: </font><font size=3D1 face=3D"sans-serif">06/12/2014 04:07 AM</font><= br><font size=3D1 color=3D#5f5f5f face=3D"sans-serif">Subject: </font><font size=3D1 face=3D"sans-serif">Re: [ovirt-users] Engine HA?</font><br><hr noshade><br><br><br><tt><font size=3D2>On 06/11/20= 14 04:16 AM, KevinTang@umac.mo wrote:<br>> Dear all,<br>><br>> I k= now oVirt Host (VM) can be HA and cluster, all VM can be migrate<br>> be= tween all operational Node.<br>><br>> Since the main oVirt Engine is = standalone, event shelf-hosted engine, it<br>> still is a single Engine.<br>><br>> I want to ensure my En= gine can be HA, how should I do? Do I need to<br>> create a Cluster Linu= x first?<br>><br><br>hosted-engine has built-in HA mechanism for the eng= ine, so if the host <br>its running on has an issue, another host will launch the hosted engine= .<br><br></font></tt><br><BR> --=_alternative 00358D4A48257CF5_=--
On 06/12/2014 05:44 AM, KevinTang@umac.mo wrote:
Dear all,
If not using self hosted-engine solution, my Engine will install in dedicate machine. How should I make the engine become HA?
easiest would be to run it as a VM on a clustering solution like Red Hat Cluster Suite or similar.
Thanks
Best Regards, Kevin Tang -------------------------------------------------------------------------------------------------------------------- AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI University of Macau Tel: (+853) 8397-8035
From: Itamar Heim <iheim@redhat.com> To: KevinTang@umac.mo, users@ovirt.org Date: 06/12/2014 04:07 AM Subject: Re: [ovirt-users] Engine HA? ------------------------------------------------------------------------
On 06/11/2014 04:16 AM, KevinTang@umac.mo wrote:
Dear all,
I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.
Since the main oVirt Engine is standalone, event shelf-hosted engine, it still is a single Engine.
I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?
hosted-engine has built-in HA mechanism for the engine, so if the host its running on has an issue, another host will launch the hosted engine.
I have already done a POC. I'm going eventually to post inside the mailing list the gory details so that you could check and give feedback and then I go contribute in the wiki. Let me recollect the doc with the steps. Basic system was CentOS 6.5 with Pacemaker and cman. The filesystem resources (for postgres, etc..) were managed in drbd primary/secondary. At the end you would have somethng like this: [root@ovirteng01 ~]# crm_mon -1 Last updated: Thu Jun 12 12:21:13 2014 Last change: Fri Mar 14 15:30:57 2014 via cibadmin on ovirteng01.localdomain.local Stack: cman Current DC: ovirteng02.localdomain.local - partition with quorum Version: 1.1.10-14.el6_5.2-368c726 2 Nodes configured 13 Resources configured Online: [ ovirteng01.localdomain.local ovirteng02.localdomain.local ] Master/Slave Set: ms_OvirtData [OvirtData] Masters: [ ovirteng02.localdomain.local ] Slaves: [ ovirteng01.localdomain.local ] Resource Group: ovirt ip_OvirtData (ocf::heartbeat:IPaddr2): Started ovirteng02.localdomain.local lvm_ovirt (ocf::heartbeat:LVM): Started ovirteng02.localdomain.local fs_OvirtData (ocf::heartbeat:Filesystem): Started ovirteng02.localdomain.local pgsql_OvirtData (lsb:postgresql): Started ovirteng02.localdomain.local p_lsb_nfs (lsb:nfs): Started ovirteng02.localdomain.local p_exportfs_root (ocf::heartbeat:exportfs): Started ovirteng02.localdomain.local p_exportfs_iso (ocf::heartbeat:exportfs): Started ovirteng02.localdomain.local ovirt-engine (lsb:ovirt-engine): Started ovirteng02.localdomain.local ovirt-websocket-proxy (lsb:ovirt-websocket-proxy): Started ovirteng02.localdomain.local httpd (ocf::heartbeat:apache): Started ovirteng02.localdomain.local or with pcs commands: [root@ovirteng01 ~]# pcs resource show --groups ovirt: ip_OvirtData lvm_ovirt fs_OvirtData pgsql_OvirtData p_lsb_nfs p_exportfs_root p_exportfs_iso ovirt-engine ovirt-websocket-proxy httpd [root@ovirteng01 ~]# pcs resource show Master/Slave Set: ms_OvirtData [OvirtData] Masters: [ ovirteng02.localdomain.local ] Slaves: [ ovirteng01.localdomain.local ] Resource Group: ovirt ip_OvirtData (ocf::heartbeat:IPaddr2): Started lvm_ovirt (ocf::heartbeat:LVM): Started fs_OvirtData (ocf::heartbeat:Filesystem): Started pgsql_OvirtData (lsb:postgresql): Started p_lsb_nfs (lsb:nfs): Started p_exportfs_root (ocf::heartbeat:exportfs): Started p_exportfs_iso (ocf::heartbeat:exportfs): Started ovirt-engine (lsb:ovirt-engine): Started ovirt-websocket-proxy (lsb:ovirt-websocket-proxy): Started httpd (ocf::heartbeat:apache): Started the share file system is something like /dev/mapper/VG_OVIRT-LV_OVIRT 5.0G 203M 4.5G 5% /shared and has structure like [root@ovirteng02 ~]# ll /shared total 28 drwxr-xr-x. 6 root root 4096 Mar 1 14:11 etc drwx------. 2 root root 16384 Mar 1 10:29 lost+found drwxr-xr-x. 5 root root 4096 Mar 5 17:10 nfs_info drwxr-xr-x. 3 root root 4096 Mar 1 13:52 var [root@ovirteng02 ~]# ll /shared/etc/ total 16 drwxr-xr-x. 4 root root 4096 Mar 1 17:30 httpd drwxr-xr-x. 15 root root 4096 Mar 1 13:58 ovirt-engine drwxr-xr-x. 2 root root 4096 Mar 1 13:59 ovirt-engine-setup.conf.d drwxr-xr-x. 3 root root 4096 Mar 1 14:03 pki [root@ovirteng02 ~]# ll /shared/var/ total 4 drwxr-xr-x. 6 root root 4096 Mar 6 01:52 lib [root@ovirteng02 ~]# ll /shared/var/lib/ total 16 drwxr-xr-x. 3 root root 4096 Mar 5 18:58 exports drwxr-xr-x. 4 root root 4096 Mar 14 15:28 nfs drwxr-xr-x. 8 ovirt ovirt 4096 Mar 12 00:30 ovirt-engine drwx------. 4 postgres postgres 4096 Mar 1 12:49 pgsql more details in following e-mail. Let me know if it can be of interest. I tried some things like forced panic, relocation while webadmin open, etc... and it seemed consistent. Gianluca On Thu, Jun 12, 2014 at 11:52 AM, Itamar Heim <iheim@redhat.com> wrote:
On 06/12/2014 05:44 AM, KevinTang@umac.mo wrote:
Dear all,
If not using self hosted-engine solution, my Engine will install in dedicate machine. How should I make the engine become HA?
easiest would be to run it as a VM on a clustering solution like Red Hat Cluster Suite or similar.
Thanks
Best Regards, Kevin Tang ------------------------------------------------------------ -------------------------------------------------------- AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI University of Macau Tel: (+853) 8397-8035
From: Itamar Heim <iheim@redhat.com> To: KevinTang@umac.mo, users@ovirt.org Date: 06/12/2014 04:07 AM Subject: Re: [ovirt-users] Engine HA? ------------------------------------------------------------------------
On 06/11/2014 04:16 AM, KevinTang@umac.mo wrote:
Dear all,
I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.
Since the main oVirt Engine is standalone, event shelf-hosted engine, it still is a single Engine.
I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?
hosted-engine has built-in HA mechanism for the engine, so if the host its running on has an issue, another host will launch the hosted engine.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Hi kevin: I'm afraid there's no other better solutions for engine HA without hosted-engine. But do you mean the architecture mentioned in http://www.ovirt.org/Features/Engine_High_Availability ? If yes, I'll say this is a complex task which is currently just some thoughts and need deep research. Thanks plysan 2014-06-12 17:44 GMT+08:00 <KevinTang@umac.mo>:
Dear all,
If not using self hosted-engine solution, my Engine will install in dedicate machine. How should I make the engine become HA?
Thanks
Best Regards, Kevin Tang
-------------------------------------------------------------------------------------------------------------------- AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI University of Macau Tel: (+853) 8397-8035
From: Itamar Heim <iheim@redhat.com> To: KevinTang@umac.mo, users@ovirt.org Date: 06/12/2014 04:07 AM Subject: Re: [ovirt-users] Engine HA? ------------------------------
On 06/11/2014 04:16 AM, KevinTang@umac.mo wrote:
Dear all,
I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.
Since the main oVirt Engine is standalone, event shelf-hosted engine, it still is a single Engine.
I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?
hosted-engine has built-in HA mechanism for the engine, so if the host its running on has an issue, another host will launch the hosted engine.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
This is a multi-part message in MIME format. --------------040701050703000004010201 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Kevin, I found this link while looking for the same solution: http://captainkvm.com/2013/05/providing-high-availability-for-rhev-m/ We now have rhev-m (which is the same thing as the Ovirt engine) running on a server using KVM/Qemu, with my Linux workstation acting as a backup host. The VM image is stored on an NFS share. Simple, possibly even slightly crude, but very effective. Regards, John On 12/06/14 19:44, KevinTang@umac.mo wrote:
Dear all,
If not using self hosted-engine solution, my Engine will install in dedicate machine. How should I make the engine become HA?
Thanks
Best Regards, Kevin Tang -------------------------------------------------------------------------------------------------------------------- AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI University of Macau Tel: (+853) 8397-8035
From: Itamar Heim <iheim@redhat.com> To: KevinTang@umac.mo, users@ovirt.org Date: 06/12/2014 04:07 AM Subject: Re: [ovirt-users] Engine HA? ------------------------------------------------------------------------
On 06/11/2014 04:16 AM, KevinTang@umac.mo wrote:
Dear all,
I know oVirt Host (VM) can be HA and cluster, all VM can be migrate between all operational Node.
Since the main oVirt Engine is standalone, event shelf-hosted engine, it still is a single Engine.
I want to ensure my Engine can be HA, how should I do? Do I need to create a Cluster Linux first?
hosted-engine has built-in HA mechanism for the engine, so if the host its running on has an issue, another host will launch the hosted engine.
______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
--------------040701050703000004010201 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi Kevin,<br> <br> I found this link while looking for the same solution: <a class="moz-txt-link-freetext" href="http://captainkvm.com/2013/05/providing-high-availability-for-rhev-m/">http://captainkvm.com/2013/05/providing-high-availability-for-rhev-m/</a><br> <br> We now have rhev-m (which is the same thing as the Ovirt engine) running on a server using KVM/Qemu, with my Linux workstation acting as a backup host. The VM image is stored on an NFS share. Simple, possibly even slightly crude, but very effective.<br> <br> Regards,<br> John<br> <br> <br> <div class="moz-cite-prefix">On 12/06/14 19:44, <a class="moz-txt-link-abbreviated" href="mailto:KevinTang@umac.mo">KevinTang@umac.mo</a> wrote:<br> </div> <blockquote cite="mid:OF59E5C510.B3977A5A-ON48257CF5.0035653D-48257CF5.00358D4B@umac.mo" type="cite"><font face="sans-serif" size="2">Dear all,</font><br> <br> <font face="sans-serif" size="2">If not using self hosted-engine solution, my Engine will install in dedicate machine. How should I make the engine become HA?</font><br> <br> <font face="sans-serif" size="2">Thanks<br> <br> Best Regards,<br> Kevin Tang<br> --------------------------------------------------------------------------------------------------------------------<br> AMSV - STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI<br> University of Macau<br> Tel: (+853) 8397-8035</font><br> <br> <br> <br> <font face="sans-serif" size="1" color="#5f5f5f">From: </font><font face="sans-serif" size="1">Itamar Heim <a class="moz-txt-link-rfc2396E" href="mailto:iheim@redhat.com"><iheim@redhat.com></a></font><br> <font face="sans-serif" size="1" color="#5f5f5f">To: </font><font face="sans-serif" size="1"><a class="moz-txt-link-abbreviated" href="mailto:KevinTang@umac.mo">KevinTang@umac.mo</a>, <a class="moz-txt-link-abbreviated" href="mailto:users@ovirt.org">users@ovirt.org</a></font><br> <font face="sans-serif" size="1" color="#5f5f5f">Date: </font><font face="sans-serif" size="1">06/12/2014 04:07 AM</font><br> <font face="sans-serif" size="1" color="#5f5f5f">Subject: </font><font face="sans-serif" size="1">Re: [ovirt-users] Engine HA?</font><br> <hr noshade="noshade"><br> <br> <br> <tt><font size="2">On 06/11/2014 04:16 AM, <a class="moz-txt-link-abbreviated" href="mailto:KevinTang@umac.mo">KevinTang@umac.mo</a> wrote:<br> > Dear all,<br> ><br> > I know oVirt Host (VM) can be HA and cluster, all VM can be migrate<br> > between all operational Node.<br> ><br> > Since the main oVirt Engine is standalone, event shelf-hosted engine, it<br> > still is a single Engine.<br> ><br> > I want to ensure my Engine can be HA, how should I do? Do I need to<br> > create a Cluster Linux first?<br> ><br> <br> hosted-engine has built-in HA mechanism for the engine, so if the host <br> its running on has an issue, another host will launch the hosted engine.<br> <br> </font></tt><br> <br> <br clear="all"> ______________________________________________________________________<br> This email has been scanned by the Symantec Email Security.cloud service.<br> For more information please visit <a class="moz-txt-link-freetext" href="http://www.symanteccloud.com">http://www.symanteccloud.com</a><br> ______________________________________________________________________<br> <br> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ Users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users@ovirt.org</a> <a class="moz-txt-link-freetext" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a> </pre> </blockquote> <br> </body> </html> --------------040701050703000004010201--
participants (5)
-
Gianluca Cecchi -
Itamar Heim -
John Gardeniers -
KevinTang＠umac.mo -
plysan