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[Users] cluster.min-free-disk option on gluster 3.4 Was: Re: how to temporarily solve low disk space problem
by Amedeo Salvati 10 Jan '14

10 Jan '14

Il 07/01/2014 18:00, users-request(a)ovirt.org ha scritto: > Date: Tue, 7 Jan 2014 16:21:37 +0100 > From: Gianluca Cecchi<gianluca.cecchi(a)gmail.com> > To: Gadi Ickowicz<gickowic(a)redhat.com> > Cc: users<users(a)ovirt.org> > Subject: Re: [Users] how to temporarily solve low disk space problem > preventing start of VM > Message-ID: > <CAG2kNCxw54+dANqGX79j1HzjLYgPbxujxkb83GwVzZMfj=jNfA(a)mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > On Tue, Jan 7, 2014 at 4:08 PM, Gadi Ickowicz wrote: >> >Hi, >> > >> >The low disk space is controlled by a parameter in the engine called FreeSpaceCriticalLowInGB, and can be configured using the cli tool engine-config. >> > >> >you should be able to set it to something like 4 GB or maybe 3GB so you can start your vms with the following command: >> > >> >engine-config -s FreeSpaceCriticalLowInGB=3 >> > >> >After doing this you have to restart the engine service (service ovirt-engine restart) for the changes to take effect. >> > >> >If you want to see what the current value is use engine-config -g FreeSpaceCriticalLowInGB. >> > >> > >> >To see a list of all configurable values you can use engine-config --list >> > >> >Thanks, >> >Gadi Ickowicz > It did the trick, thanks! > > Could this parameter impact in general only start of new VMs or in any > way also already running VMs? > Gianluca added gluster-users as they can responde to us questions. Gianluca, as you are using glusterfs, and as I can see on your df output: /dev/mapper/fedora-DATA_GLUSTER 30G 23G 7.8G 75% /gluster/DATA_GLUSTER node01.mydomain:gvdata 30G 26G 4.6G 85% /rhev/data-center/mnt/glusterSD/node01.mydomain:gvdata be careful to gluster cluster.min-free-disk option, that on gluster 3.1 and 3.2 it's default option is 0% (good for you!) http://gluster.org/community/documentation//index.php/Gluster_3.2:_Setting_… but I can't find the same documentation for gluster 3.4, that I suppose you're using this gluster version on ovirt; otherwise on red hat storage documentation cluster.min-free-disk default option is 10% (bad for you): https://access.redhat.com/site/documentation/en-US/Red_Hat_Storage/2.1/html… so you fill your gvdata volume up to 90% and let we know if it's stop I/O (or only write) or we can wait for a clarification from gluster guy :-) best regards a -- Amedeo Salvati RHC{DS,E,VA} - LPIC-3 - UCP - NCLA 11 email: amedeo(a)oscert.net email: amedeo(a)linux.com http://plugcomputing.it/redhatcert.php http://plugcomputing.it/lpicert.php

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[Users] virtualized engine / port to self-hosted engine
by Sven Kieske 10 Jan '14

10 Jan '14

Hi, I'm currently planning to setup a libvirt-vm to use as ovirt-engine. OS in the vm would be EL 6.5 Does anybody have any experience with such a setup? I'd also like to know if such a setup could be easily ported to the upcoming self-hosted engine feature or if a physical setup could get ported better? Thanks for any input! -- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen

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[Users] Network unsynchronised
by Alan Murrell 10 Jan '14

10 Jan '14

------_=_NextPart_001_01CF0D12.ACE73C17 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi All. I have a brand new, fresh all-in-one installation that I am using to = evaluate oVirt. I have removed the "VM network" role from the "ovirtmgmt" bridge, as I = want to use it for management only, and no VMs (I plan on using other = networks I am creating with VLAN IDs for handling the VM network). I = can remove the role alright, but when I go in to "Setup Host Network", = the "ovirtmgmt" network is showing as being unsynchronised. When I = click on the pencil icon on the network to edit it, I put a check in = "Sync Network" and clik "OK" but it never seems to sync. Any idea why it will not? Thanks! :-) -Alan ------_=_NextPart_001_01CF0D12.ACE73C17 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Diso-8859-1"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version = 6.5.7654.12"> <TITLE>Network unsynchronised</TITLE> </HEAD> <BODY>  Hi All. I have a brand new, fresh all-in-one installation that I am using to = evaluate oVirt. I have removed the "VM network" role from the = "ovirtmgmt" bridge, as I want to use it for management only, = and no VMs (I plan on using other networks I am creating with VLAN IDs = for handling the VM network).  I can remove the role alright, but = when I go in to "Setup Host Network", the = "ovirtmgmt" network is showing as being unsynchronised.  = When I click on the pencil icon on the network to edit it, I put a check = in "Sync Network" and clik "OK" but it never seems = to sync. Any idea why it will not? Thanks! :-) -Alan </BODY> </HTML> ------_=_NextPart_001_01CF0D12.ACE73C17--

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[Users] Replacing ISO domain
by Gabi C 09 Jan '14

09 Jan '14

Hello! 1 Ovirt-engine + 2 nodes with Glusterfs on them (replicate), 1 ISO domain, 1 Export domain. ISO domain is created at ovirt-setup time on ovirt-engine host.How can I replace this ISO domain with a new, bigger, one on another machine?

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[Users] VM Status "Unknown"
by Ryan Womer 09 Jan '14

09 Jan '14

--_000_6F811DD54D1A4D478D542041B5BC6A0B01D0C2B60DCYEX01CytechS_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable During a migration, the destination host lost connectivity to the san and c= rashed. Once the server came back up, 3 VMs that didn't finish migrating have been = stuck in status "Unknown." Vdsclient doesn't list any of the vms on eithe= r host. Qemu doesn't have them listed as mounted on either host. Action = vm start and stop result in "Status: 409". The disks for all 3 VMs are listed as green in the WebAdmin. I've tried "a= ction vm <name> start" "action vm <name> stop" "update vm <name> --status-= state down" no joy. They remain in "unknown." --_000_6F811DD54D1A4D478D542041B5BC6A0B01D0C2B60DCYEX01CytechS_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang=3D"EN-US" link=3D"blue" vlink=3D"purple"> <div class=3D"WordSection1"> During a migration, the destination host lost connec= tivity to the san and crashed.  <o:p></o:p> <o:p> </o:p> Once the server came back up, 3 VMs that didn’= t finish migrating have been stuck in status “Unknown.” &n= bsp; Vdsclient doesn’t list any of the vms on either host. &nbsp= ; Qemu doesn’t have them listed as mounted on either host.  Acti= on vm start and stop result in “Status: 409”.  <o:p></o:p> <o:p> </o:p> The disks for all 3 VMs are listed as green in the W= ebAdmin.  I’ve tried “action vm <name> start”&= nbsp; “action vm <name> stop” “update vm <name&g= t; --status-state down”  no joy.  They remain in “unk= nown.”<o:p></o:p> <o:p> </o:p> </div> </body> </html> --_000_6F811DD54D1A4D478D542041B5BC6A0B01D0C2B60DCYEX01CytechS_--

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[Users] Creation of preallocated disk with Gluster replication
by gregoire.leroy＠retenodus.net 09 Jan '14

09 Jan '14

Hello, I have a Gluster volume in distributed/replicated mode. I have 2 hosts. When I try to create a VM with a preallocated disk, it uses 100% of the available CPU and bandwidth (I have 1 Gigabit network card). The result is I can't even create a preallocated disk because the engine detects a network failure. I get that kind of messages in /var/log/messages : " Jan 2 14:13:54 localhost sanlock[3811]: 2014-01-02 14:13:54+0100 167737 [3811]: s4 kill 21114 sig 15 count 1 Jan 2 14:13:54 localhost wdmd[3800]: test failed rem 51 now 167737 ping 167718 close 167728 renewal 167657 expire 167737 client 3811 sanlock_ef4978d6-5711-4e01-a0ec-7ffbd9 cdbe5d:1 " And that in the Ovirt Gui : " 2014-janv.-02, 15:35 Operation Add-Disk failed to complete. 2014-janv.-02, 15:35 Storage Pool Manager runs on Host HOST2 (Address: X.X.X.X). 2014-janv.-02, 15:35 Invalid status on Data Center GlusterSewan. Setting Data Center status to Non Responsive (On host HOST2, Error: done). 2014-janv.-02, 15:35 State was set to Up for host HOST2. 2014-janv.-02, 15:33 Used Network resources of host HOST2 [98%] exceeded defined threshold [95%]. 2014-janv.-02, 15:33 Add-Disk operation of test_Disk1 was initiated on VM test by admin@internal. I understand that the creation of a 10 Go disk image generates a lot of traffic, but is there a way to limit it so that it doesn't have an impact on the production ? Furthermore, Why does it use so much CPU ressources ? I can see on my monitoring graph a big peak of CPU usage when I launched the operation (probably until 100%). Thank you, Regards, Grégoire Leroy

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Re: [Users] VSDM?s logrotate makes Hosts fill up var, eventually
by Juan Pablo Lorier 09 Jan '14

09 Jan '14

Hi Dan, If my opinion is worth, I use logs all the time as my setup is evolving all the time and have issues quite often, so I rather use space in logging too much than loose information I need in regular bases. Regards,

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[Users] feature: low resolution support
by Einav Cohen 09 Jan '14

09 Jan '14

Hi, You are welcome to review the 'Low Resolution Support' feature page at: http://www.ovirt.org/Features/Design/LowerResolutionSupport feature owner: Alexander Wels (CC'd). [this has just been merged to 'master' and will be available in ovirt-3.4] ---- Thanks, Einav

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[Users] alx driver causes network troubles on VMs after bonding
by Alessandro Bianchi 09 Jan '14

09 Jan '14

Hi all I'm running several F19 hosts with multiple Gigabit NIC's I've discovered on at least two different harware host nodes that alx driver causes troubles in network connection This is related to this Atheros very common onboard hardware (lspci -vv relevant part only) 03:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10) Subsystem: ASUSTeK Computer Inc. Device 8507 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=256K] Region 2: I/O ports at e000 [size=128] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset- DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 unlimited ClockPM+ Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [c0] MSI: Enable- Count=1/16 Maskable+ 64bit+ Address: 00000000fee0f00c Data: 4142 Masking: ffff0000 Pending: 00000000 Capabilities: [d8] MSI-X: Enable- Count=16 Masked- Vector table: BAR=0 offset=00002000 PBA: BAR=0 offset=00003000 Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP- SDES+ TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [180 v1] Device Serial Number ff-d6-66-47-08-60-6e-ff Kernel driver in use: alx When I bond it on the ovirtmgmnt network (two gigabit bond) VMs on local cluster run OK but they fail to mount some gluster mount points I suppose this is related to the alx driver which seems to be not completely working (it still misses counters) Bringing down the relevant interface so that the bond remains with only one NIC (ifdown p4p1) fixes the issue. So be warned: if you have this hardware check very carefully your network mount points inside Vms If you have already tested this configuration and have this working please let me know. Best regards Alessandro Bianchi

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[Users] oVirt 3.4.0 release schedule updated
by Sandro Bonazzola 09 Jan '14

09 Jan '14

oVirt team has updated the release schedule for 3.4.0 [1] These are tentative planning dates and may change General availability: 2014-02-24 oVirt 3.4 Second Test Day: 2014-02-19 RC Build: 2014-02-17 oVirt 3.4 Test Day: 2014-01-27 Beta release: 2014-01-20 Branching / Feature freeze: 2014-01-15 Alpha release: 2014-01-09 more details on test days, etc to come in the next few weeks [1] http://www.ovirt.org/OVirt_3.4_release-management#Timeline -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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