[Users] affects of changing compatibility setting on running cluster
by Charles Weber
Hi everyone,
I believe I need to change my cluster compatibility level and would like to know if I can do this ona live cluster or if I have to change everything to maintenance mode first.
I ran engine setup and upgraded to current engine level then tried to add a new node using the 3.3.4 el6 iso. This resulted in an error:
Host x.x.x.x is installed with VDSM version (4.14) and cannot join cluster Default which is compatible with VDSM versions [4.13,4.9,4.11,4.12,4.10].
My current versions are:
Engine 3.3.4-1.el6 at compatibiltiy version 3.2
2 Nodes running CentOS 6.4 with VDSM 4.10.3-0.36.23.el6
Am I correct that I need to change the compatibility version to 3.3?
This has some production VMs, do I need to turn everything off first or is this a non-interruptive change?
How will this upgrade affect my current 2 hosts at their version?
My original idea was to migrate working VMs to new ovirt ISO node and then re-install original nodes to the same version off the 3.3.4 el6 iso.
I appreciate any advice.
Chuck
10 years, 8 months
Re: [Users] Instructions to add a remote controlled power strip not in the native list?
by Yedidyah Bar David
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Hi,
(Replying also to the list)
----- Original Message -----
> From: "David Smith" <dsmith(a)mypchelp.com>
> To: "Yedidyah Bar David" <didi(a)redhat.com>
> Sent: Monday, March 17, 2014 5:01:55 PM
> Subject: Re: [Users] Instructions to add a remote controlled power strip not
> in the native list?
> Hi Yedidyah,
> Keep in mind it appears that your instructions are assuming some level of in
> depth knowledge of *some* database not described in that thread.
> In other words, for someone not extremely familiar with the oVirt database
> location and tables, would not have a clue as to what you're talking about
> in this email.
> I'm guessing this database is located locally on my ovirt-engine, but I
> wouldn't know where to start in how to get into it without causing major
> problems (ie, do I need to turn off the engine first?) and it would help if
> there were a detailed example with sql commands to make the necessary
> modifications to the dB to add a fence agent completely.
This wasn't my email, it was Eli Mesika's. I just remembered that he sent it so it was easy to find.
I agree that the instructions are not complete.
The database was created during setup - you were asked about that and probably accepted the defaults,
which create a local database called 'engine'. You can connect to it by doing:
su - postgres
psql engine
Obviously, do not change anything before you understand what you are doing and have some good backup.
You can read, and usually update, without taking the engine down.
There is quite a lot of material on the ovirt wiki - please search and read a bit - e.g. for 'ovirt database'.
Do not hesitate to ask (on-list) again if you have questions.
You can also ask on irc for faster help.
Best regards,
--
Didi
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<html><body><div style=3D"font-family: times new roman, new york, times, se=
rif; font-size: 12pt; color: #000000"><div>Hi,<br></div><div><br></div><div=
>(Replying also to the list)</div><div><br></div><hr id=3D"zwchr"><blockquo=
te style=3D"border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;=
color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-f=
amily:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"David Smith=
" <dsmith(a)mypchelp.com><br><b>To: </b>"Yedidyah Bar David" <didi@r=
edhat.com><br><b>Sent: </b>Monday, March 17, 2014 5:01:55 PM<br><b>Subje=
ct: </b>Re: [Users] Instructions to add a remote controlled power strip not=
in the native list?<br><div><br></div><div dir=3D"ltr">Hi Yedidyah,<div>Ke=
ep in mind it appears that your instructions are assuming some level of in =
depth knowledge of *some* database not described in that thread. </div=
></div></blockquote><blockquote style=3D"border-left:2px solid #1010FF;marg=
in-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:norma=
l;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12p=
t;"><div dir=3D"ltr"><div><br></div><div>In other words, for someone not ex=
tremely familiar with the oVirt database location and tables, would not hav=
e a clue as to what you're talking about in this email.</div><div><br></div=
><div>I'm guessing this database is located locally on my ovirt-engine, but=
I wouldn't know where to start in how to get into it without causing major=
problems (ie, do I need to turn off the engine first?) and it would help i=
f there were a detailed example with sql commands to make the necessary mod=
ifications to the dB to add a fence agent completely.</div></div></blockquo=
te><div><br></div><div><div>This wasn't my email, it was Eli Mesika's. I ju=
st remembered that he sent it so it was easy to find.</div><div><br></div><=
div>I agree that the instructions are not complete.</div><div><br></div><di=
v>The database was created during setup - you were asked about that and pro=
bably accepted the defaults,</div><div>which create a local database called=
'engine'. You can connect to it by doing:</div><div>su - postgres</div><di=
v>psql engine</div><div><br></div><div>Obviously, do not change anything be=
fore you understand what you are doing and have some good backup.</div><div=
>You can read, and usually update, without taking the engine down.</div><di=
v><br></div><div>There is quite a lot of material on the ovirt wiki - pleas=
e search and read a bit - e.g. for 'ovirt database'.</div><div><br></div><d=
iv>Do not hesitate to ask (on-list) again if you have questions.</div><div>=
<br></div><div>You can also ask on irc for faster help.</div></div><div><br=
></div><div>Best regards,</div><div>-- <br></div><div><span name=3D"x"></sp=
an>Didi<br><span name=3D"x"></span><br></div></div></body></html>
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10 years, 8 months
[Users] migration of VM, which protocol actually works?
by aditya mamidwar
i wanted to learn about the modules so that i could understand how the
engine POSTS and sends data to the backend sql database and other scripts
to perform various options.
for e.g i need to know which code actually collects the storage path for
the ISO s during ISCSI storage domain setup.
also how the hosts, clusters and data centers are made and stored at the
backend.
if i want to add a new UI that bypasses some of these complicated tasks
(again for personal understanding), will I be able to do that.
Also i would like to mention that am working on making a little changes to
how the ISCSI protocol works..
My another doubt is:
when are the NFS/ISCSI/FC protocols actually used in ovirt. like what part
of the VM running state?
are their purpose limited to just copying the ISO from the storage center
to the path required by the Host.
Are the protocols them self responsible for sending and getting data during
VM execution on a node.
The concept of node and migration has left me a little confused.
since each node can run multiple VMs , so during the running/execution of
the VM , do the network protocols actully work, if not , then how is that
achieved.
if yes, again my question arises, which module should i focus on regarding
this issue.
thanks
--
-Aditya Mamidwar
10 years, 8 months
[Users] Request for Wiki - dates
by Bob Doolittle
Hi,
As most are aware, there's a lot of information on the Ovirt Wiki that's
out of date. In spite of our best efforts, that will probably always be
true - it's the nature of Wikis.
When I look for information on our Wiki, I never know where the most
current information is.
I think it would be really helpful if someplace on each Wiki page was a
useful date to let us know the currency of the info. Probably the most
useful date is last-modified, although creation date might also be
useful. Maybe we could even map/display the date to the version number
of whatever the current stable release was at the time for context
(sometimes the content of a page calls out a particular version it's
addressing, but a lot of the time it does not).
Just as an example, I want to find out about migrating my existing
configuration to self-hosted, using 3.4 RC2. A google search shows the
following links (in order shown):
http://www.ovirt.org/Features/Self_Hosted_Engine
http://www.ovirt.org/Migrate_to_Hosted_Engine
http://www.ovirt.org/Hosted_Engine_Howto
...
I'm sure the Features page is ancient at this point. It's hard to tell
about the 2nd page.
Of course the date a page was last modified doesn't directly indicate
how correct/current the information is, but there's a correlation.
Knowing the date would be useful in making a judgment. It might even
help the task of identifying and cleaning up obsolete pages.
Easy to do?
-Bob
10 years, 8 months
[Users] Industry Events: Call for Papers Update, March 17, 2014
by Brian Proffitt
The following is a list of industry events that oVirt community members may want to attend and give presentations. If you are interested in speaking, or if you know of other events not on this list, please contact me at bkp(a)redhat.com.
---
Open Source Bridge
Jun 24-27
Portland, OR
http://opensourcebridge.org/
Call for papers deadline: 4/4/2014
Call for papers URL: http://opensourcebridge.org/events/2014/proposals
LISA
Nov. 9-14
Seattle, WA
https://www.usenix.org/conference/lisa14
Call for papers deadline: 4/14/2014
Call for papers URL: https://www.usenix.org/conference/lisa14/call-for-participation
DockerConf
June 6
London, UK
http://dockerconf.com/
Call for papers: Open (deadline not known)
Call for papers URL: http://bit.ly/1fnHtSA
LinuxCon/CloudOpen NA
Aug. 20-22
Chicago, IL
http://events.linuxfoundation.org/events/linuxcon-north-america
Call for papers deadline: 5/2/2014
Call for papers URL: http://events.linuxfoundation.org/events/linuxcon-north-america/program/cfp
LinuxCon/CloudOpen Europe
Oct. 13-15
http://events.linuxfoundation.org/events/cloudopen-europe
Dusseldorf, Germany
Call for papers deadline: 7/11/2014
Call for papers URL: http://events.linuxfoundation.org/events/cloudopen-europe/program/cfp
KVM Forum
Oct. 14-16
Dusseldorf, Germany
http://events.linuxfoundation.org/events/kvm-forum
Call for papers: Not Open
Linux.conf.au
Jan. 12-16, 2015
Auckland, NZ
Call for papers: Not Open
--
Brian Proffitt - oVirt Community Manager
Open Source and Standards, Red Hat - http://community.redhat.com
Phone: +1 312 477 4320 / Cell: +1 574 383 9BKP
IRC: bkp
10 years, 8 months
[Users] Migrate simple configuration to self-hosted
by Bob Doolittle
Hi,
I want to migrate my existing deployment to self-hosted. I have a simple
deployment:
A: Machine Fedora 20
B: libvirt VM (hosted on A) RHEL 6.5 running Engine 3.3.4-1
C: Machine RHEL 6.5 acts as Hypervisor/Host/Node (VDSM 4.13.3-4)
ISO NFS Domain is on B
Data (Master) NFS Domain is on C
I want to migrate VM B to Machine C, as self-hosted, and free up Machine A
When I look at these instructions:
http://www.ovirt.org/Migrate_to_Hosted_Engine
It starts with "I installed a new host with fedora 19".
I don't understand this. Won't most people doing this migration want to
start with their existing Hypervisor/Host/Node, and migrate their Engine
to it? Do I really need a new 3rd machine, when my goal is to free up
one of my 2 existing machines?
Or can I go ahead and assume these instructions are fine to apply to an
existing Host already running VDSM 4.13.3-4?
I would have (naively?) imagined that the typical migration would be
something like:
0. Upgrade Engine and Host to 3.4
1. Create a new VM
2. Install OS on new VM, start it up
3. Backup current Engine
4. Stop current Engine (leave Host and VM running), change hostname
(local and DNS), maybe power off for good luck until done
5. Login to new VM (probably using ssh unless there's a way to connect
directly to the VM via Spice/VNC while the Engine is down) to:
A. Assign previous Engine hostname to it (local and DNS), possibly
reboot
B. Set it up as a self-hosted Engine
C. Restore backup to it
D. Start up new engine
What am I missing?
Thanks,
Bob
10 years, 8 months
[Users] Host CPU type is not compatible with Cluster Properties
by Hans Hinrichsen Hills
This is a multipart message in MIME format.
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I'm learning (self-learning) about Ovirt Server, and I had Inatlled in one
IBM Server xSeries 209 with CentOS release 6.5 (Final) 64 bit. I setup ovirt
engine with no problem. In the same server I try to put de same Host and
receive the following messages:
Host MiPrueba moved to Non-Operational state as host does not meet the
cluster's minimum CPU level. Missing CPU Features : <UNKNOWN>.
In the console, the host is market with Host CPU type is not compatible with
Cluster Properties
cpuFlags =
'fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clf
lush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,lm,constant_tsc,pebs
,bts,pni,dtes64,monitor,ds_cpl,est,cid,cx16,xtpr,lahf_lm,model_coreduo'
I need to know if I can use this server to ovirt-engine
Saludos cordiales,
Hans Hinrichsen Hills
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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US>I’m learning (self-learning) about Ovirt Server, and =
I had Inatlled in one IBM Server xSeries 209 with CentOS release 6.5 =
(Final) 64 bit. I setup ovirt engine with no problem. In the same server =
I try to put de same Host and receive the following =
messages:<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Host MiPrueba moved to Non-Operational state as host does =
not meet the cluster’s minimum CPU level. Missing CPU Features : =
<UNKNOWN>.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>In the console, the host is market with Host CPU type is =
not compatible with Cluster Properties<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p> </o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>cpuFlags =3D =
'fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,=
clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,lm,constant_ts=
c,pebs,bts,pni,dtes64,monitor,ds_cpl,est,cid,cx16,xtpr,lahf_lm,model_core=
duo'<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>I need to know if I can use this server to =
ovirt-engine<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal =
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style=3D'font-size:10.0pt;font-family:"Verdana","sans-serif";color:#40404=
0;mso-fareast-language:ES-CL'>Saludos cordiales,<br>Hans Hinrichsen =
Hills<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DES><o:p> </o:p></span></p></div></body></html>
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10 years, 8 months
[Users] Ovirt 3.4rc + Qemu Live snapshot : Problem to delete a Snapshot
by Eric Bollengier
Hello,
I upgraded to Ovirt 3.4rc allinone on centos6, and I compiled/installed
the qemu-kvm-rhev to be able to take live snapshots.
Taking the snapshot is OK, but I would like to delete them, and the
button and the menu are disabled (grey) until I shutdown the VM.
Once powered off, actions are available, and I'm able to delete snapshots.
When looking the Snapshot Actions Matrix:
http://www.ovirt.org/Live_Snapshots
Is the "Revert" operation needed to delete a snapshot ? (Deleting a
snapshot file implies to write changes from the snapshot file to the
parent file, looks to be "Commit" for me).
If not, should I have to upgrade something else, like libvirt, to be
able to delete snapshots?
Thanks in advance
Best Regards,
Eric
ovirt-engine-setup-plugin-ovirt-engine-common-3.4.0-0.13.rc.el6.noarch
ovirt-iso-uploader-3.4.0-1.el6.noarch
ovirt-engine-tools-3.4.0-0.13.rc.el6.noarch
ovirt-engine-backend-3.4.0-0.13.rc.el6.noarch
ovirt-host-deploy-1.1.3-1.el6.noarch
ovirt-host-deploy-java-1.1.3-1.el6.noarch
ovirt-engine-cli-3.3.0.6-1.el6.noarch
ovirt-host-deploy-offline-1.1.3-1.el6.noarch
ovirt-engine-setup-base-3.4.0-0.13.rc.el6.noarch
ovirt-engine-setup-plugin-ovirt-engine-3.4.0-0.13.rc.el6.noarch
ovirt-engine-setup-plugin-allinone-3.4.0-0.13.rc.el6.noarch
ovirt-log-collector-3.4.1-1.el6.noarch
ovirt-engine-setup-plugin-websocket-proxy-3.4.0-0.13.rc.el6.noarch
ovirt-engine-webadmin-portal-3.4.0-0.13.rc.el6.noarch
ovirt-engine-userportal-3.4.0-0.13.rc.el6.noarch
ovirt-engine-dbscripts-3.4.0-0.13.rc.el6.noarch
ovirt-engine-3.4.0-0.13.rc.el6.noarch
ovirt-engine-lib-3.4.0-0.13.rc.el6.noarch
ovirt-engine-setup-3.4.0-0.13.rc.el6.noarch
ovirt-image-uploader-3.4.0-1.el6.noarch
ovirt-engine-websocket-proxy-3.4.0-0.13.rc.el6.noarch
ovirt-engine-restapi-3.4.0-0.13.rc.el6.noarch
ovirt-release-11.0.2-1.noarch
vdsm-4.13.3-4.el6.x86_64
qemu-img-rhev-0.12.1.2-2.415.el6.5.x86_64
qemu-kvm-rhev-0.12.1.2-2.415.el6.5.x86_64
qemu-kvm-rhev-tools-0.12.1.2-2.415.el6.5.x86_64
libvirt-0.10.2-29.el6_5.5.x86_64
libvirt-lock-sanlock-0.10.2-29.el6_5.5.x86_64
10 years, 8 months
