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Re: [ovirt-users] change network MTU settings without taking all the VMs down?
by Darrell Budic 27 Jan '15

27 Jan '15

Ah, good idea. That will be cleaner than the hack I was considering, I’ll see if I can work that somehow. Thanks! > On Jan 27, 2015, at 2:59 PM, Donny Davis <donny(a)cloudspin.me> wrote: > > I'm on the same.. And I see the issue. Why don't you create a new network with the correct parameters and then move the network the VM is attached to > > On Jan 27, 2015 1:39 PM, Darrell Budic <budic(a)onholyground.com> wrote: >> >> Try changing that custom MTU and hitting OK. I get: >> >> on 3.5 and 3.5.1. What version are you running? >> >>> On Jan 27, 2015, at 2:04 PM, Donny Davis <donny(a)cloudspin.me> wrote: >>> >>> Maybe I missed your question, but I can change the MTU from the gui without any problems. As long as you make sure there are not any vm's on the host you are trying to sync, I have experienced no issues. >>> >>> Donny >>> >>> -----Original Message----- >>> From: Darrell Budic [mailto:budic@onholyground.com] >>> Sent: Tuesday, January 27, 2015 12:30 PM >>> To: Donny Davis >>> Cc: users(a)ovirt.org >>> Subject: Re: [ovirt-users] change network MTU settings without taking all the VMs down? >>> >>> Except you can’t change the network MTU setting in the first place on the network in the GUI. I’ve thought about doing it in the database, with a migration as you mention. Just checking first for better options :) >>> >>> >>>> On Jan 27, 2015, at 12:08 PM, Donny Davis <donny(a)cloudspin.me> wrote: >>>> >>>> Migrate the vms between hosts, and when a host gets to no running VMS you can sync that network. >>>> >>>> Donny D >>>> cloudspin.meOn Jan 27, 2015 10:43 AM, Darrell Budic <budic(a)onholyground.com> wrote: >>>>> >>>>> >>>>> I finally got a couple of networks our from behind a wan based layer 2 bridge that required me to run at MTU 1448, and would like to get back up to MTU 1500. I see the GUI won’t let me do that while the network is in use. Any way around this, clean or otherwise? Restarting VMs to update them is ok, just trying to avoid having to take everything down at the same time. >>>>> >>>>> -Darrell >>>>> _______________________________________________ >>>>> Users mailing list >>>>> Users(a)ovirt.org >>>>> http://lists.ovirt.org/mailman/listinfo/users >>> >>> >>> <Capture.PNG> >> >>

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Re: [ovirt-users] change network MTU settings without taking all the VMs down?
by Donny Davis 27 Jan '15

27 Jan '15

I'm on the same.. And I see the issue. Why don't you create a new network with the correct parameters and then move the network the VM is attached to On Jan 27, 2015 1:39 PM, Darrell Budic <budic(a)onholyground.com> wrote: > > Try changing that custom MTU and hitting OK. I get: > > on 3.5 and 3.5.1. What version are you running? > >> On Jan 27, 2015, at 2:04 PM, Donny Davis <donny(a)cloudspin.me> wrote: >> >> Maybe I missed your question, but I can change the MTU from the gui without any problems. As long as you make sure there are not any vm's on the host you are trying to sync, I have experienced no issues. >> >> Donny >> >> -----Original Message----- >> From: Darrell Budic [mailto:budic@onholyground.com] >> Sent: Tuesday, January 27, 2015 12:30 PM >> To: Donny Davis >> Cc: users(a)ovirt.org >> Subject: Re: [ovirt-users] change network MTU settings without taking all the VMs down? >> >> Except you can’t change the network MTU setting in the first place on the network in the GUI. I’ve thought about doing it in the database, with a migration as you mention. Just checking first for better options :) >> >> >>> On Jan 27, 2015, at 12:08 PM, Donny Davis <donny(a)cloudspin.me> wrote: >>> >>> Migrate the vms between hosts, and when a host gets to no running VMS you can sync that network. >>> >>> Donny D >>> cloudspin.meOn Jan 27, 2015 10:43 AM, Darrell Budic <budic(a)onholyground.com> wrote: >>>> >>>> >>>> I finally got a couple of networks our from behind a wan based layer 2 bridge that required me to run at MTU 1448, and would like to get back up to MTU 1500. I see the GUI won’t let me do that while the network is in use. Any way around this, clean or otherwise? Restarting VMs to update them is ok, just trying to avoid having to take everything down at the same time. >>>> >>>> -Darrell >>>> _______________________________________________ >>>> Users mailing list >>>> Users(a)ovirt.org >>>> http://lists.ovirt.org/mailman/listinfo/users >> >> >> <Capture.PNG> > >

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Changing the engine HA ping address?
by Chris Adams 27 Jan '15

27 Jan '15

I have an up-to-date hosted-engine 3.5.1 setup (CentOS 7 for the nodes, CentOS 6 for the engine), and the engine keeps jumping between the two nodes running the hosted-engine HA (sometimes after just 10-20 minutes, sometimes after a day or two). I figured out that it is failing on pinging the gateway sometimes. The gateway IP is a layer-3 switch, and I think sometimes it just is not responding to ICMP echo request in a timely fashion (traffic is routing just fine though). How is the HA ping implemented? How many requests does it send (and how many responses are required to be considered "good")? If I can't tweak the sensitivity of the ping, I'd like to ping a different IP (on a HA load balancer setup). The oVirt HA config refers to it as "gateway" though; is it really used as a gateway in any case, or is that just the recommended IP? Can I just edit /etc/ovirt-hosted-engine/hosted-engine.conf on the two nodes and restart the ovirt-ha-broker service? -- Chris Adams <cma(a)cmadams.net>

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Re: [ovirt-users] change network MTU settings without taking all the VMs down?
by Darrell Budic 27 Jan '15

27 Jan '15

Except you can’t change the network MTU setting in the first place on the network in the GUI. I’ve thought about doing it in the database, with a migration as you mention. Just checking first for better options :) > On Jan 27, 2015, at 12:08 PM, Donny Davis <donny(a)cloudspin.me> wrote: > > Migrate the vms between hosts, and when a host gets to no running VMS you can sync that network. > > Donny D > cloudspin.meOn Jan 27, 2015 10:43 AM, Darrell Budic <budic(a)onholyground.com> wrote: >> >> I finally got a couple of networks our from behind a wan based layer 2 bridge that required me to run at MTU 1448, and would like to get back up to MTU 1500. I see the GUI won’t let me do that while the network is in use. Any way around this, clean or otherwise? Restarting VMs to update them is ok, just trying to avoid having to take everything down at the same time. >> >> -Darrell >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users

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Re: [ovirt-users] Host remains Non-Responsive after reboot
by Eli Mesika 27 Jan '15

27 Jan '15

----- Original Message ----- > From: "ILanit Stein" <istein(a)redhat.com> > To: "Artyom Lukianov" <alukiano(a)redhat.com>, "Eli Mesika" <emesika(a)redhat.com> > Cc: users(a)ovirt.org, rabshear(a)citytwist.net > Sent: Tuesday, January 27, 2015 5:19:12 PM > Subject: Fwd: [ovirt-users] Host remains Non-Responsive after reboot > > > Hi Guys, > > Can you please look into this please? Hi >From the logs I can see clearly that host is turned on in 2015-01-26 11:56:51,191 However, there is a stomp exception in 2015-01-26 11:56:53,544 and a connection timeout in 2015-01-26 11:56:53,553 that might be related Piotr, can you please have a look ? > > Thanks, > Ilanit. > ----- Forwarded Message ----- > From: "Rob Abshear" <rabshear(a)citytwist.net> > To: "ILanit Stein" <istein(a)redhat.com> > Sent: Tuesday, January 27, 2015 3:05:56 PM > Subject: Re: [ovirt-users] Host remains Non-Responsive after reboot > > Here are the logs. you requested. The shutdown of the node was at 11:53 > and vdsmd was manually restarted at 12:01 to get the node back online. > > On Tue, Jan 27, 2015 at 2:05 AM, ILanit Stein <istein(a)redhat.com> wrote: > > > It might be a bug, > > Would you please attach the logs, I mentioned bellow, > > that can bring more details on the failure? > > Adding Eli, that may want to give some input on this issue. > > > > Thanks, > > Ilanit. > > > > ----- Original Message ----- > > From: "Rob Abshear" <rabshear(a)citytwist.net> > > To: "ILanit Stein" <istein(a)redhat.com> > > Cc: users(a)ovirt.org > > Sent: Monday, January 26, 2015 9:43:14 PM > > Subject: Re: [ovirt-users] Host remains Non-Responsive after reboot > > > > I have done a bit more investigating on this matter. If I restart the node > > from within oVirt using the power management option "restart", then the > > node restarts and vdsmd DOES NOT start. If I go into the DRAC and issue > > the command to power cycle the machine, then the machine restarts and vdsmd > > DOES start. I can run the following command from another node in the > > cluster: > > fence_drac5 -a 192.168.200.105 -l root -p <password> -x -o reboot > > and the node restarts and vdsmd DOES start. > > > > On Sun, Jan 25, 2015 at 1:56 AM, ILanit Stein <istein(a)redhat.com> wrote: > > > > > Hi Rob, > > > > > > Thanks for this report. > > > > > > Would you please provide these logs, at the time frame, the host failure > > > occur: > > > 1. oVirt Engine: /var/log/ovirt-engine/engine.log > > > 2. host: /var/log/vdsm/vdsm.log > > > > > > If it is reproducible, please add this info as well. > > > > > > You can also check vdsm service status, on host, while host reported as > > > Non responsive, > > > by running on host 'service vdsmd status' > > > There might some problem, that might have prevented from vdsm service to > > > come up, on host. > > > > > > Ilanit. > > > > > > ----- Original Message ----- > > > From: "Rob Abshear" <rabshear(a)citytwist.net> > > > To: users(a)ovirt.org > > > Sent: Friday, January 23, 2015 9:22:42 PM > > > Subject: [ovirt-users] Host remains Non-Responsive after reboot > > > > > > > > > I am running oVirt Engine Version 3.5.0.1-1.el6. I have 4 hosts in the > > > cluster. Each host has a drac5 and it is configured and working. I am > > > trying to simulate a node failure. I am running one HA VM on one of the > > > hosts for testing. I simulate the failure by powering off the host with > > the > > > VM running. > > > > > > Here is what is happening. > > > > > > > > > * Host is powered off > > > * ~4 minutes pass and the host is recognized as not responding > > > * Automatic fence runs and the VM migrates. Another host in the node > > > is chosen as a proxy to execute Status command on the host. > > > * Same host is chosen as proxy to execute Start command on the host. > > > * Same host is chosen as proxy to execute Status command on the host. > > > * The host DOES physically start. > > > * The host never shows status of UP. > > > * I select “confirm host has been rebooted” and I see a manual fence > > > start. > > > * Host stays non-responsive. > > > * I put the host in maintenance and then activate it. > > > * Host still non-responsive > > > * I put the host in maintenance and do a reinstall > > > * Reinstall finishes and host becomes UP > > > > > > So, everything seems to go fine with the HA functionality, but the host > > > never recovers without being reinstalled. Please let me know which logs > > you > > > need to look at to help me out with this. > > > > > > Thanks > > > > > > > > > Sent with Mixmax > > > > > > _______________________________________________ > > > Users mailing list > > > Users(a)ovirt.org > > > http://lists.ovirt.org/mailman/listinfo/users > > > > > >

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Network config
by Koen Vanoppen 27 Jan '15

27 Jan '15

Hello everybody, Just wanted to know if anybody else has the problem, that when you restart your network configuration of a hypervisor, all the settings concerning the bonding are gone... Do I file a bug report for this or is this already a known issue? Kind regards, Koen

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Re: [ovirt-users] change network MTU settings without taking all the VMs down?
by Donny Davis 27 Jan '15

27 Jan '15

Migrate the vms between hosts, and when a host gets to no running VMS you can sync that network. Donny D cloudspin.meOn Jan 27, 2015 10:43 AM, Darrell Budic <budic(a)onholyground.com> wrote: > > I finally got a couple of networks our from behind a wan based layer 2 bridge that required me to run at MTU 1448, and would like to get back up to MTU 1500. I see the GUI won’t let me do that while the network is in use. Any way around this, clean or otherwise? Restarting VMs to update them is ok, just trying to avoid having to take everything down at the same time. > > -Darrell > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users

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3.5.0 to 3.5.1 Upgrade Steps
by Tim Macy 27 Jan '15

27 Jan '15

What are the proper steps to upgrade the engine from 3.5.0.1-1.el6 to 3.5.1-1.el6? engine-upgrade or engine-setup after yum update ovirt-engine-setup?

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Failed to add storage domain
by Koen Vanoppen 27 Jan '15

27 Jan '15

Dear all, We have a small issue on our ovirt environment. When I try to add a fibre storage pool, I get the following error: 2015-01-21 08:24:48,705 WARN [org.ovirt.engine.core.vdsbroker.irsbroker.IrsProxyData] (org.ovirt.thread.pool-8-thread-22) Storage domain e5d59e58-6408-4f80-911e-a30d0e7ca1fe:BuranIsoDomain is not visible to one or more hosts. Since the domains type is ISO, hosts status will not be changed to non-operational 2015-01-21 08:24:54,764 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.CreateStorageDomainVDSCommand] (ajp--127.0.0.1-8702-3) [2c666536] Command CreateStorageDomainVDSCommand(HostName = saturnus1, HostId = 1180a1f6-635e-47f6-bba1-871d8c432de0, storageDomain=StorageDomainStatic[StoragePoolOracle01, fd6c6779-8353-42f6-b2ff-0c670e4b8a73], args=qEZ3pE-03I3-5w9M-1XFN-ArBH-2d2e-fSVRF3) execution failed. Exception: VDSNetworkException: java.util.concurrent.TimeoutException 2015-01-21 08:24:54,769 ERROR [org.ovirt.engine.core.bll.storage.AddSANStorageDomainCommand] (ajp--127.0.0.1-8702-3) [2c666536] Command org.ovirt.engine.core.bll.storage.AddSANStorageDomainCommand throw Vdc Bll exception. With error message VdcBLLException: org.ovirt.engine.core.vdsbroker.vdsbroker.VDSNetworkException: java.util.concurrent.TimeoutException (Failed with error VDS_NETWORK_ERROR and code 5022) 2015-01-21 08:24:54,810 ERROR [org.ovirt.engine.core.bll.storage.AddSANStorageDomainCommand] (ajp--127.0.0.1-8702-3) [2c666536] Transaction rolled-back for command: org.ovirt.engine.core.bll.storage.AddSANStorageDomainCommand. 2015-01-21 08:24:54,839 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ajp--127.0.0.1-8702-3) [2c666536] Correlation ID: 2c666536, Job ID: 35bc8058-ab79-40b5-be1e-877b88362261, Call Stack: null, Custom Event ID: -1, Message: Failed to add Storage Domain StoragePoolOracle01. (User: admin) 2015-01-21 08:24:55,107 WARN [org.ovirt.engine.core.bll.AddVmFromScratchCommand] (DefaultQuartzScheduler_Worker-25) In the GUI you'll see this error: Error while executing action New SAN Storage Domain: Network error during communication with the Host. All the hosts are up and all the rest of our storage is also up. Kind regards, Koen

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Update to 3.5.1 scrambled multipath.conf?
by Gianluca Cecchi 27 Jan '15

27 Jan '15

Hello, on my all-in-one installation @home I had 3.5.0 with F20. Today I updated to 3.5.1. it seems it modified /etc/multipath.conf preventing me from using my second disk at all... My system has internal ssd disk (sda) for OS and one local storage domain and another disk (sdb) with some partitions (on one of them there is also another local storage domain). At reboot I was put in emergency boot because partitions at sdb disk could not be mounted (they were busy). it took me some time to understand that the problem was due to sdb gone managed as multipath device and so busy for partitions to be mounted. Here you can find how multipath became after update and reboot https://drive.google.com/file/d/0BwoPbcrMv8mvS0FkMnNyMTdVTms/view?usp=shari… No device-mapper-multipath update in yum.log Also it seems that after changing it, it was then reverted at boot again (I don't know if the responsible was initrd/dracut or vdsmd) so in the mean time the only thing I could do was to make the file immutable with chattr +i /etc/multipath.conf and so I was able to reboot and verify that my partitions on sdb were ok and I was able to mount them (for safe I also ran an fsck against them) Update ran around 19:20 and finished at 19:34 here the log in gzip format https://drive.google.com/file/d/0BwoPbcrMv8mvWjJDTXU1YjRWOFk/view?usp=shari… Reboot was done around 21:10-21:14 Here my /var/log/messages in gzip format, where you can see latest days. https://drive.google.com/file/d/0BwoPbcrMv8mvMm1ldXljd3hZWnM/view?usp=shari… Any suggestion appreciated. Current multipath.conf (where I also commented out the getuid_callout that is not used anymore): [root@tekkaman setup]# cat /etc/multipath.conf # RHEV REVISION 1.1 blacklist { devnode "^(sda|sdb)[0-9]*" } defaults { polling_interval 5 #getuid_callout "/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/%n" no_path_retry fail user_friendly_names no flush_on_last_del yes fast_io_fail_tmo 5 dev_loss_tmo 30 max_fds 4096 } Gianluca

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