[ovirt-users] Re: Ovirt cluster unstable; gluster to blame (again)

2018-07-10 Thread Doug Ingham
Hi Jim, Just to throw my 2 cents in, one of my clusters is very similar to yours, & I'm not having any of the issues you complain about. One thing I would strongly recommend you do however is bond your NICs with LACP 802.3ad - either 2x1Gbit for oVirt & 2x1Gbit for Gluster, or bond all of your

[ovirt-users] Re: VM interface bonding (LACP)

2018-05-18 Thread Doug Ingham
t much benefit from single 10Gbit links would be on our distributed storage layer, although with 10 nodes, each with 4x1Gbit LAGGs, even that's holding up quite well. Let's see how the tests go tomorrow... On 05/14/2018 03:03 PM, Doug Ingham wrote: > >> On 14 May 2018 at 15:35, Juan

[ovirt-users] Re: VM interface bonding (LACP)

2018-05-17 Thread Doug Ingham
14, 2018, 11:33 PM Chris Adams <c...@cmadams.net> wrote: > >> Once upon a time, Doug Ingham <dou...@gmail.com> said: >> > Correct! >> > >> > | Single 1Gbit virtual interface >> > | >> > VM Host Switch stack &g

[ovirt-users] Re: VM interface bonding (LACP)

2018-05-14 Thread Doug Ingham
refer to use LACP (mode 4) if possible. > 2018-05-14 16:20 GMT-03:00 Doug Ingham: > >> On 14 May 2018 at 15:03, Vinícius Ferrão wrote: >> >>> You should use better hashing algorithms for LACP. >>> >>> Take a look at this explanation: https://www.ibm.co

[ovirt-users] Re: VM interface bonding (LACP)

2018-05-14 Thread Doug Ingham
p; the switch, but setting up LACP between the VM & the host. For reasons of stability, my 4.1 cluster's switch type is currently "Linux Bridge", not "OVS". Ergo my question, is LACP on the VM possible with that, or will I have to use ALB? Regards, Doug > >

[ovirt-users] Re: VM interface bonding (LACP)

2018-05-14 Thread Doug Ingham
On 14 May 2018 at 15:01, Juan Pablo wrote: > LACP is not intended for maximizing throughtput. > if you are using iscsi, you should use multipathd instead. > > regards, > Umm, maximising the total throughput for multiple concurrent connections is most definitely one of

[ovirt-users] VM interface bonding (LACP)

2018-05-14 Thread Doug Ingham
Hi All, My hosts have all of their interfaces bonded via LACP to maximise throughput, however the VMs are still limited to Gbit virtual interfaces. Is there a way to configure my VMs to take full advantage of the bonded physical interfaces? One way might be adding several VIFs to each VM & using

[ovirt-users] Re: Gluster quorum

2018-05-12 Thread Doug Ingham
The two key errors I'd investigate are these... 2018-05-10 03:24:21,048+02 WARN [org.ovirt.engine.core.vdsbroker.gluster.GlusterVolumesListReturn] > (DefaultQuartzScheduler8) [7715ceda] Could not associate brick '10.104.0.1: > /gluster/brick/brick1' of volume

Re: [ovirt-users] Emergency shutdown script

2018-04-23 Thread Doug Ingham
I've plugged this into our monitoring. When the UPS' are at 50%, it puts the general cluster into global maintenance & then triggers a shutdown action on all of the VMs in the cluster's service group via the monitoring agent (you could use an SNMP trap if you use agentless monitoring). Once all

Re: [ovirt-users] oVirt KVM Guest Definition: How to read these from within a virtual machine?

2018-04-16 Thread Doug Ingham
Err...by reading the hardware specs in the standard manner? eg. dmidecode, etc. On 15 April 2018 at 01:28, TomK wrote: > From within an oVirt (KVM) guest machine, how can I read the guest > specific definitions such as memory, CPU, disk etc configuration that the > guest

Re: [ovirt-users] VM Portal looking for translators

2017-08-22 Thread Doug Ingham
I sent Marek an email with my username last week, offering to do the pt_br translation, however I've still had no response? Rgds, On 22 August 2017 at 09:38, Gianluca Cecchi wrote: > On Mon, Aug 14, 2017 at 8:37 PM, Jakub Niedermertl > wrote: >

[ovirt-users] Pass Discard guest OS support?

2017-08-01 Thread Doug Ingham
Hi All, Just today I noticed that guests can now pass discards to the underlying shared filesystem. http://www.ovirt.org/develop/release-management/features/storage/pass-discard-from-guest-to-underlying-storage/ Is this supported by all of the main Linux guest OS's running the virt agent? And

Re: [ovirt-users] Upgrading HC from 4.0 to 4.1

2017-07-01 Thread Doug Ingham
> Only problem I would like to manage is that I have gluster network shared > with ovirtmgmt one. > Can I move it now with these updated packages? > Are the gluster peers configured with the same hostnames/IPs as your hosts within oVirt? Once they're configured on the same network, separating

Re: [ovirt-users] Seamless SAN HA failovers with oVirt?

2017-06-06 Thread Doug Ingham
Hey Matthew, I think it's VDSM that handles the pausing & resuming of the VMs. An analogous small-scale scenario...the Gluster layer for one of our smaller oVirt clusters temporarily lost quorum the other week, locking all I/O for about 30 minutes. The VMs all went into pause & then resumed

Re: [ovirt-users] Setting up hosted engine appliance on a bonded interface

2017-03-28 Thread Doug Ingham
Hi Bryan, On 23 March 2017 at 23:54, Bryan Sockel wrote: > > Hi, > > I am attempting to deploy an appliance to a bonded interface, and i > getting this error when it attempts to setup the bridge: > > > [ ERROR ] Failed to execute stage 'Misc configuration': Failed to

Re: [ovirt-users] Trouble installing windows 10

2017-03-17 Thread Doug Ingham
Fedora has signed drivers, however whilst I can't speak for Windows 10, I've still not had any luck getting any of the VirtIO & Spice drivers working on Windows Server 2016. The services are *running*, but there doesn't seem to be any actual communcation going on between the hypervisor & guest...

Re: [ovirt-users] Memory for Engine Machine

2017-02-20 Thread Doug Ingham
16GB is just the recommended amount of memory. The more items your Engine has to manage, the more memory it will consume, so whilst it might not be using that amount of memory at the moment, it will do as you expand your cluster. On 20 February 2017 at 16:22, FERNANDO FREDIANI

Re: [ovirt-users] Importing existing (dirty) storage domains

2017-02-16 Thread Doug Ingham
Hi Nir, On 16 Feb 2017 22:41, "Nir Soffer" <nsof...@redhat.com> wrote: On Fri, Feb 17, 2017 at 3:16 AM, Doug Ingham <dou...@gmail.com> wrote: > Well that didn't go so well. I deleted both dom_md/ids & dom_md/leases in > the cloned volume, and I still can't import

Re: [ovirt-users] Importing existing (dirty) storage domains

2017-02-16 Thread Doug Ingham
5f6610-c759-448b-a53d-9a456f513681=<STORAGE_CONNECTION, ACTION_TYPE_FAILED_OBJECT_LOCKED>]', sharedLocks='null'}' Again, many thanks! Doug On 16 February 2017 at 18:53, Doug Ingham <dou...@gmail.com> wrote: > Hi Nir, > > On 16 February 2017 at 13:55, Nir Soffer <nsof...@red

Re: [ovirt-users] Importing existing (dirty) storage domains

2017-02-16 Thread Doug Ingham
Hi Nir, On 16 February 2017 at 13:55, Nir Soffer <nsof...@redhat.com> wrote: > On Mon, Feb 13, 2017 at 3:35 PM, Doug Ingham <dou...@gmail.com> wrote: > > Hi Sahina, > > > > On 13 February 2017 at 05:45, Sahina Bose <sab...@redhat.com> wrote: > &g

Re: [ovirt-users] Scheduling snapshots

2017-02-15 Thread Doug Ingham
https://github.com/wefixit-AT/oVirtBackup ...although I understand the API calls it uses have been deprecated in 4.1. On 15 February 2017 at 14:38, Pat Riehecky wrote: > Has someone got a script to automate scheduling snapshots of a specific > system (and retaining them for

Re: [ovirt-users] How to enable Global Maintenance via the REST-API?

2017-02-15 Thread Doug Ingham
nance > > Regards, > Andrej > > On 13 February 2017 at 21:17, Doug Ingham <dou...@gmail.com> wrote: > >> Hey Guys, >> I've gone through both oVirt's & Red Hat's API docs, but I can only find >> info on getting the global maintenance state & setting l

[ovirt-users] How to enable Global Maintenance via the REST-API?

2017-02-13 Thread Doug Ingham
Hey Guys, I've gone through both oVirt's & Red Hat's API docs, but I can only find info on getting the global maintenance state & setting local maintenance on specific hosts. Is it not possible to set global maintenance via the API? I'm writing up a new script for our engine-backup routine, but

Re: [ovirt-users] Importing existing (dirty) storage domains

2017-02-13 Thread Doug Ingham
that there is a sanlock daemon that runs with VDSM, independently of the HE, so I'd basically have to bring the volume down & wait for the leases to expire/delete them* before I can import the domain. *I understand removing /dom_md/leases/ should do the job? > > On Thu, Feb 9, 2017 a

Re: [ovirt-users] Gluster storage question

2017-02-11 Thread Doug Ingham
s quorum and heal > operations but your procedure sounds like a sensible way to operate this > cluster. > > Regards, > > Chris. > > > On 2017-02-11 18:08, Doug Ingham wrote: > > > > On 11 February 2017 at 13:32, Bartosiak-Jentys, Chris < > chris.bartosia

Re: [ovirt-users] Gluster storage question

2017-02-11 Thread Doug Ingham
On 11 February 2017 at 13:32, Bartosiak-Jentys, Chris < chris.bartosiak-jen...@certico.co.uk> wrote: > Hello list, > > Just wanted to get your opinion on my ovirt home lab setup. While this is > not a production setup I would like it to run relatively reliably so please > tell me if the following

[ovirt-users] Current state of UI brick management when using dedicated interfaces for ovirtmgmt & gluster?

2017-02-10 Thread Doug Ingham
Hey Guys, I currently use dedicated interfaces & hostnames to separate gluster traffic on my "hyperconverged" hosts. For example, the first node uses "v0" for its management interface & "s0" for its gluster interface. With this setup, I notice that all functions under the "Volumes" tab work,

Re: [ovirt-users] Best way to shutdown and restart hypervisor?

2017-02-10 Thread Doug Ingham
On 9 February 2017 at 10:08, Gianluca Cecchi wrote: > On Wed, Feb 8, 2017 at 10:59 AM, Gianluca Cecchi < > gianluca.cec...@gmail.com> wrote: > >> Hello, >> what is considered the best way to shutdown and restart an hypervisor, >> supposing plain CentOS 7 host? >> >>

Re: [ovirt-users] Manually starting VMs via vdsClient (HE offline)

2017-02-09 Thread Doug Ingham
On 9 February 2017 at 15:48, Yaniv Kaul <yk...@redhat.com> wrote: > > > On Thu, Feb 9, 2017 at 6:00 PM, Doug Ingham <dou...@gmail.com> wrote: > >> >> >> On 9 February 2017 at 12:03, Dan Yasny <dya...@gmail.com> wrote: >> >>> >>&

Re: [ovirt-users] Importing existing (dirty) storage domains

2017-02-09 Thread Doug Ingham
Some interesting output from the vdsm log... 2017-02-09 15:16:24,051 INFO (jsonrpc/1) [storage.StorageDomain] Resource namespace 01_img_60455567-ad30-42e3-a9df-62fe86c7fd25 already registered (sd:731) 2017-02-09 15:16:24,051 INFO (jsonrpc/1) [storage.StorageDomain] Resource namespace

[ovirt-users] Importing existing (dirty) storage domains

2017-02-09 Thread Doug Ingham
Hi All, My original HE died & was proving too much of a hassle to restore, so I've setup a new HE on a new host & now want to import my previous data storage domain with my VMs. The problem is when I try to attach the new domain to the datacenter, it hangs for a minute and then comes back with,

Re: [ovirt-users] Manually starting VMs via vdsClient (HE offline)

2017-02-09 Thread Doug Ingham
On 9 February 2017 at 12:03, Dan Yasny <dya...@gmail.com> wrote: > > On Thu, Feb 9, 2017 at 9:55 AM, Doug Ingham <dou...@gmail.com> wrote: > >> Hi Dan, >> >> On 8 February 2017 at 18:26, Dan Yasny <dya...@gmail.com> wrote: >>> >>> &g

Re: [ovirt-users] Manually starting VMs via vdsClient (HE offline)

2017-02-09 Thread Doug Ingham
Hi Dan, On 8 February 2017 at 18:26, Dan Yasny wrote: > > > But seriously, above all, I'd recommend you backup the engine (it comes > with a utility) often and well. I do it via cron every hour in production, > keeping a rotation of hourly and daily backups, just in case. It

Re: [ovirt-users] Manually starting VMs via vdsClient (HE offline)

2017-02-08 Thread Doug Ingham
Hi Dan, On 8 February 2017 at 18:10, Dan Yasny <dya...@gmail.com> wrote: > > > On Wed, Feb 8, 2017 at 4:07 PM, Doug Ingham <dou...@gmail.com> wrote: > >> Hi Guys, >> My Hosted-Engine has failed & it looks like the easiest solution will be >> to

[ovirt-users] Manually starting VMs via vdsClient (HE offline)

2017-02-08 Thread Doug Ingham
Hi Guys, My Hosted-Engine has failed & it looks like the easiest solution will be to install a new one. Now before I try to re-add the old hosts (still running the guest VMs) & import the storage domain into the new engine, in case things don't go to plan, I want to make sure I'm able to bring up

Re: [ovirt-users] Restoring Hosted-Engine from a stale backup

2017-02-06 Thread Doug Ingham
On 6 February 2017 at 13:30, Simone Tiraboschi wrote: > > >1. What problems can I expect to have with VMs added/modified >since the last backup? > > Modified VMs will be reverted to the previous configuration; >>> additional VMs should be seen as

Re: [ovirt-users] Safe to install/use epel repository?

2017-01-31 Thread Doug Ingham
On 31 January 2017 at 13:27, Gianluca Cecchi wrote: > This in CentOS 7.3 plain hosts used as hypervisors and intended for oVirt > 4.0 and 4.1 hosts. > In particular for performance related packages such as > bwm-ng > iftop > htop > nethogs > and the like. > Thanks,

[ovirt-users] Location of the gluster client log with libgfapi

2017-01-27 Thread Doug Ingham
Hey guys, Would anyone be able to tell me the name/location of the gluster client log when mounting through libgfapi? Cheers, -- Doug ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] Actual downtime during migration?

2017-01-27 Thread Doug Ingham
> > its memory resynchronised one last time > Actually, thinking about it, rather than diffing *all* of the memory on the first host to resync it at the last moment, the hypervisor probably simultaneously copies the current state of memory & uses copy-on-write (COW) to write all new transactions

Re: [ovirt-users] Actual downtime during migration?

2017-01-27 Thread Doug Ingham
Hi Gianluca, My educated guess...When you live migrate a VM, its state in memory is copied over to the new host, but the VM still remains online during this period to minimise downtime. Once its state in memory is fully copied to the new host, the VM is paused on the original host, its memory

Re: [ovirt-users] safe to reboot ovirt-engine?

2017-01-26 Thread Doug Ingham
Make sure to enable global maintenance mode before doing so! The Hosted-Engine is just a manager for the underlying hypervisors, which will keep running the VMs as usual until the engine comes back online. Disable maintenance mode afterwards. On 26 January 2017 at 13:48, Wout Peeters

Re: [ovirt-users] get UI working throug ALIAS and real hostname

2017-01-24 Thread Doug Ingham
On 24 January 2017 at 15:15, emanuel.santosvar...@mahle.com wrote: > If I access the UI via "ALIAS" I get the Error-Page "The client is not > authorized to request an authorization. It's required to access the system > using FQDN. > > What can I do to get UI working through ALIAS and real

Re: [ovirt-users] Restoring Hosted-Engine from a stale backup

2017-01-24 Thread Doug Ingham
Hey guys, Just giving this a bump in the hope that someone might be able to advise... Hi all, > One of our engines has had a DB failure* & it seems there was an > unnoticed problem in its backup routine, meaning the last backup I've got > is a couple of weeks old. > Luckily, VDSM has kept the

[ovirt-users] Restoring Hosted-Engine from a stale backup

2017-01-20 Thread Doug Ingham
Hi all, One of our engines has had a DB failure* & it seems there was an unnoticed problem in its backup routine, meaning the last backup I've got is a couple of weeks old. Luckily, VDSM has kept the underlying VMs running without any interruptions, so my objective is to get the HE back online &

Re: [ovirt-users] VM listed twice in oVirt UI

2017-01-17 Thread Doug Ingham
, however my HE has since borked itself & I'm now in the process of restoring/redeploying it. I've got access to the logs, but the engine & API are now offline. Doug > On Tue, Jan 17, 2017 at 1:52 PM, Doug Ingham <dou...@gmail.com> wrote: > >> Hi Tomas, >> >>

Re: [ovirt-users] VM listed twice in oVirt UI

2017-01-17 Thread Doug Ingham
management was unaffected. Doug On Mon, Jan 9, 2017 at 8:09 PM, Doug Ingham <dou...@gmail.com> wrote: > Hi all, > We had some hiccups in our datacenter over the new year which caused some > problems with our hosted engine. > > I've managed to get everything back up &

[ovirt-users] oVirt getting confused w/ hosts' gluster bricks on different FQDNs/interfaces?

2017-01-10 Thread Doug Ingham
Hey all, Each of my hosts/nodes also hosts its own gluster bricks for the storage domains, and peers over a dedicated FQDN & interface. For example, the first server is setup like the following... eth0: v0.dc0.example.com (10.10.10.100) eth1: s0.dc0.example.com (10.123.123.100) As it's a

[ovirt-users] VM listed twice in oVirt UI

2017-01-09 Thread Doug Ingham
Hi all, We had some hiccups in our datacenter over the new year which caused some problems with our hosted engine. I've managed to get everything back up & running, however now one of the VMs is listed twice in the UI. When I click on the VM, both items are highlighted & I'm able to configure &