- Users - oVirt List Archives

VSDM Hosts Swapspace
by Matt . 19 Oct '14

19 Oct '14

Hi All, As I'm not a big fan of swapping, as most people don't I think, I wonder why the following calculation is made: The default overcommit ratio is 0.5. The recommended size of the swap partition can be determined by: Multiplying the amount of system RAM by the expected overcommit ratio, and adding 2 GB of swap space for systems with 4 GB of RAM or less, or 4 GB of swap space for systems with between 4 GB and 16 GB of RAM, or 8 GB of swap space for systems with between 16 GB and 64 GB of RAM, or 16 GB of swap space for systems with between 64 GB and 256 GB of RAM. Example recommended SWAP calculation for a machine with 16 GB of RAM: (16 GB x 0.5) + 8 GB = 16 GB Would VM's make the Host swap that fast when the mem is overcommitted ? I have tested this and don't see much more than 1,5GB of swap usage. I hope someone can tell me how they see/use this. Matt

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No package ovirt-engine-extension-aaa-ldap available.
by Fumihide Tani 19 Oct '14

19 Oct '14

Hi everyone, After oVirt 3.5 GA fresh installation, then I tried to install the ovirt-engine-extension-aaa-ldap. [root@ovirt ~]# yum install ovirt-engine-extension-aaa-ldap Loaded plugins: fastestmirror, security, versionlock Loading mirror speeds from cached hostfile epel/metalink | 6.1 kB 00:00 ovirt-3.5-epel/metalink | 6.1 kB 00:00 * base: www.ftp.ne.jp * epel: ftp.kddilabs.jp * extras: www.ftp.ne.jp * ovirt-3.5: resources.ovirt.org * ovirt-3.5-epel: ftp.kddilabs.jp * ovirt-3.5-jpackage-6.0-generic: sunsite.informatik.rwth-aachen.de * updates: www.ftp.ne.jp base | 3.7 kB 00:00 epel | 4.4 kB 00:00 http://ftp.kddilabs.jp/Linux/packages/fedora/epel/6/x86_64/repodata/repomd.…: [Errno -1] repomd.xml does not match metalink for epel Trying other mirror. epel | 4.4 kB 00:00 extras | 3.3 kB 00:00 ovirt-3.5 | 2.9 kB 00:00 ovirt-3.5-epel | 4.4 kB 00:00 http://ftp.kddilabs.jp/Linux/packages/fedora/epel/6/x86_64/repodata/repomd.…: [Errno -1] repomd.xml does not match metalink for ovirt-3.5-epel Trying other mirror. ovirt-3.5-epel | 4.4 kB 00:00 ovirt-3.5-glusterfs-epel | 2.9 kB 00:00 ovirt-3.5-glusterfs-noarch-epel | 2.9 kB 00:00 ovirt-3.5-jpackage-6.0-generic | 951 B 00:00 ovirt-3.5-patternfly1-noarch-epel | 3.0 kB 00:00 updates | 3.4 kB 00:00 Setting up Install Process No package ovirt-engine-extension-aaa-ldap available. Error: Nothing to do [root@ovirt ~]# ovirt-3.5 repo does not support ovirt-engine-extension-aaa-ldap? Thanks, Fumihide Tani

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Re: [ovirt-users] oVirt monitoring
by Rene Koch 19 Oct '14

19 Oct '14

Hi Ryan, If you want to monitor your oVirt environment (storage domains, data centers, clusters, hosts) using Nagios you can use check_rhev3: https://github.com/ovido/check_rhev3 For monitoring virtual machines with Nagios it's possible to use this plugin as well, but I suggest other (more detailed) methods like nrpe, ssh, snmp or check_mk agent: http://mathias-kettner.de/checkmk.html You can also display all your Nagios check results in oVirt webadmin with the Monitoring UI-plugin: https://github.com/monitoring-ui-plugin/monitoring-ui-plugin Regards, René -----Original message----- From: Shirly Radco <sradco(a)redhat.com> Sent: Sun 10-19-2014 08:32 am Subject: Re: [ovirt-users] oVirt monitoring To: Ryan Nix <ryan.nix(a)gmail.com>; CC: users(a)ovirt.org; > Hi Ryan, > > You can use oVirt reports and dwh packages that collects historical data > and provides reports that enable you to monitor the system currently and over > time. > > http://www.ovirt.org/Ovirt_Reports > > Best regards, > --- > Shirly Radco > BI Software Engineer > Red Hat Israel Ltd. > > > ----- Original Message ----- > > From: "Mooli Tayer" <mtayer(a)redhat.com> > > To: "Ryan Nix" <ryan.nix(a)gmail.com> > > Cc: users(a)ovirt.org > > Sent: Saturday, October 18, 2014 8:27:30 PM > > Subject: Re: [ovirt-users] oVirt monitoring > > > > Hi Ryan, > > > > 1.) The Nagios integration page seems to be back up. > > > > 2.) For monitoring of events available in oVirt-engine's audit log, > > It is possible to register for both email and snmp trap notifications[1]. > > > > A portion of these events are related to managed resources. > > > > Trap notifications allow integration with monitoring systems. > > See: [1], [2] and [3]. > > > > [1] http://www.ovirt.org/Features/engine-snmp > > [2] http://www.ovirt.org/Features/configuration-event-subscribers > > [3] https://bugzilla.redhat.com/show_bug.cgi?id=1136818 > > This RFE allows easier integration with monitoring systems and should > > be available soon. Some work with snmptt can achieve the same result. > > > > Regards, > > Mooli Tayer. > > > > ----- Original Message ----- > > > Hello, > > > > > > I was looking for something to monitor the resources managed by oVirt and > > > not > > > necessarily oVirt itself. It looks like there is a page on Nagios > > > integration, however, I'm getting a 503 when trying to access the site. > > > http://www.ovirt.org/Features/Nagios_Integration > > > > > > Does anyone have any recommendations on monitoring resources managed by > > > oVirt? > > > > > > Thanks, > > > > > > Ryn > > > > > > _______________________________________________ > > > Users mailing list > > > Users(a)ovirt.org > > > http://lists.ovirt.org/mailman/listinfo/users > > > > > _______________________________________________ > > Users mailing list > > Users(a)ovirt.org > > http://lists.ovirt.org/mailman/listinfo/users > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >

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CentOS 7 + oVirt 3.5 + OpenVPN
by Phil Daws 19 Oct '14

19 Oct '14

Hello: have installed oVirt 3.5 VDSM on a CentOS 7 node and then OpenVPN. The problem I have is that when I start OpenVPN I receive the message: Oct 18 13:29:50 kvm01 openvpn[4159]: /usr/sbin/ip link set dev tun0 up mtu 1500 Oct 18 13:29:50 kvm01 openvpn[4159]: /usr/sbin/ip addr add dev tun0 192.168.124.200/25 broadcast 192.168.124.255 Oct 18 13:29:50 kvm01 openvpn[4159]: /usr/sbin/ip route add 192.168.0.0/16 via 192.168.124.1 Oct 18 13:29:50 kvm01 openvpn[4159]: ERROR: Linux route add command failed: external program exited with error status: 2 and if I run the route command manually: [root@kvm01 sysconfig]# /usr/sbin/ip route add 192.168.0.0/16 via 192.168.124.1 RTNETLINK answers: No such process It would appear the tunnel is up: [root@kvm01 sysconfig]# ip add ls 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN link/ether f2:c9:ce:e5:ac:32 brd ff:ff:ff:ff:ff:ff 3: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP qlen 1000 link/ether c8:1f:66:c4:2c:76 brd ff:ff:ff:ff:ff:ff inet6 fe80::ca1f:66ff:fec4:2c76/64 scope link valid_lft forever preferred_lft forever 4: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether c8:1f:66:c4:2c:77 brd ff:ff:ff:ff:ff:ff 6: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN link/ether 46:af:6e:9a:1e:4b brd ff:ff:ff:ff:ff:ff 8: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether c8:1f:66:c4:2c:76 brd ff:ff:ff:ff:ff:ff inet XXX.XXX.XXX.XXX/23 brd 88.150.253.255 scope global ovirtmgmt valid_lft forever preferred_lft forever inet6 fe80::ca1f:66ff:fec4:2c76/64 scope link valid_lft forever preferred_lft forever 10: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 100 link/none inet 192.168.124.200/25 brd 192.168.124.255 scope global tun0 valid_lft forever preferred_lft forever Any thoughts as to why the route will not work ? Rationale for this approach is its a cloud server and wish to use a private network to reach the install VMs on that node. Thanks, Phil

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oVirt monitoring
by Ryan Nix 19 Oct '14

19 Oct '14

Hello, I was looking for something to monitor the resources managed by oVirt and not necessarily oVirt itself. It looks like there is a page on Nagios integration, however, I'm getting a 503 when trying to access the site. http://www.ovirt.org/Features/Nagios_Integration Does anyone have any recommendations on monitoring resources managed by oVirt? Thanks, Ryn

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iSCSI - recommended LUN size?
by Anthony Alba 19 Oct '14

19 Oct '14

Some noob questions on iSCSI as I am doing an evaluation on NFS vs iSCSI. 1. Is there a best practices guide to LUN sizing for oVirt? E.g. N x 200G, N x 500G, N x 1 TB. http://www.ovirt.org/Quick_Start_Guide#Create_an_iSCSI_Data_Domain "oVirt platform supports iSCSI storage domains spanning multiple pre-defined Logical Unit Numbers (LUNs)." 2. Since we can extend the storage domain, I was thinking of multiples of 200G. Any reason not to do it this way? >From the mailing list: https://www.mail-archive.com/users@ovirt.org/msg13638.html "please note: - you can extend a *storage domain* by adding an extra LUN to it from ovirt-engine." 3. Any production experience with LIO target/targetcli as backend? Thanks! - Anthony

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How to fix wrong speed of the Infiniband Interfaces?
by Arman Khalatyan 18 Oct '14

18 Oct '14

Hi, I am using ovirt 3.4.4-1. On the hosts I have 1Gbit(eth),10Gbit(eth) and 40Gbit(QDRInfiniband) interfaces. ib interface is used for the VM migration and iscsi disks. If I go to the network interfaces I can see right speed for eth cards. Unfortunately the IB interface speed is detected as 0b/s. This causes very hi load information on vm migrate face. Which is not true. IB can up to 2GB/s but already on 200MB/s load the hosts interfaces are overloaded. Where can I put the correct speed of IB interface? Thanks, Arman.

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Setting up an ovirt environment
by Andy Michielsen 18 Oct '14

18 Oct '14

Hello, I have a question. I'm been playing around with ovirt an I'm loving it. Now I would like to set up a new environment with two or three nodes with a hosted engine, reliable and fast storage and flexible network with clearly separated storage, ovirt-management and multiple VM subnets. I would like to here what you guy' s would buy and set up. Kind regards.

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failed engine-setup
by Fernando Fuentes 18 Oct '14

18 Oct '14

Team, I am trying to setup ovirt reports (Ovirt 3.4.4) and it fails at the engine setup with: [root@ovirt ~]# engine-setup [ INFO ] Stage: Initializing [ INFO ] Stage: Environment setup Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf'] Log file: /var/log/ovirt-engine/setup/ovirt-engine-setup-20141017174756-nlrnbe.log Version: otopi-1.2.3 (otopi-1.2.3-1.el6) [ INFO ] Stage: Environment packages setup [ INFO ] Stage: Programs detection [ INFO ] Stage: Environment setup [ INFO ] Stage: Environment customization --== PRODUCT OPTIONS ==-- Configure Reports on this host (Yes, No) [Yes]: Configure Data Warehouse on this host (Yes, No) [Yes]: --== PACKAGES ==-- [ INFO ] Checking for product updates... [ ERROR ] Yum: [u'msv-xsdlib-1.2-0.20050722.7.jpp6.noarch requires msv = 1.2-0.20050722.7.jpp6'] [ INFO ] Yum: Performing yum transaction rollback [ ERROR ] Failed to execute stage 'Environment customization': [u'msv-xsdlib-1.2-0.20050722.7.jpp6.noarch requires msv = 1.2-0.20050722.7.jpp6'] [ INFO ] Stage: Clean up Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20141017174756-nlrnbe.log [ INFO ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20141017174854-setup.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ ERROR ] Execution of setup failed Any ideas why is failing? Do I have to install spacewalk-jpp-workaround? Regards.

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oVirt 3.5
by Phil Daws 17 Oct '14

17 Oct '14

------=_Part_71034_1381705891.1413465621918 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hello: I now have two servers that I would like to install CentOS7 on and run the latest release of 3.5 on. Have taken a look at http://resources.ovirt.org/pub/ and there appears to be quite a few different versions. Would http://resources.ovirt.org/pub/ovirt-3.5-snapshot/ be the most appropriate release to use ? And if I may ask which document should I digest for installation ? Thanks, Phil ------=_Part_71034_1381705891.1413465621918 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html><body><div style="font-family: courier new,courier,monaco,monospace,sans-serif; font-size: 10pt; color: #000000">Hello:<br><div><br></div>I now have two servers that I would like to install CentOS7 on and run the latest release of 3.5 on.  Have taken a look at http://resources.ovirt.org/pub/ and there appears to be quite a few different versions.  Would http://resources.ovirt.org/pub/ovirt-3.5-snapshot/ be the most appropriate release to use ? And if I may ask which document should I digest for installation ?<br><div><br></div>Thanks, Phil</div></body></html> ------=_Part_71034_1381705891.1413465621918--

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