[one-users] How to get information of actual VMs from inside a cluster
Hi, I intend to build VM clusters for high-performance computing by OpenNebula. Each cluster shares /home by NFS and run MPI job individually. And I would provide them as private cluster to several users. I expect that NFS configuration can make using some way. (e.g. static config in VM image, dynamic config by context) But, in order to submit MPI job, it is necessary to know actual compute-node (hostname, IP address, cores, etc...). The number of VM of cluster can change on-demand by OpenNebula. But maybe each VM cannot know change of member of cluster. I cannot conceive the smart way how to know information of actual VMs from inside a cluster environment. Does anyone have any idea? Thanks, -- Akihiko Ota ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] How to get information of actual VMs from inside a cluster
Hi, On Wed, 2011-12-14 at 18:24 +0900, Akihiko Ota wrote: I intend to build VM clusters for high-performance computing by OpenNebula. We have a virtual HPC cluster, using the SGE, and the nodes register themselves as SGE hosts during bootup. But, in order to submit MPI job, it is necessary to know actual compute-node (hostname, IP address, cores, etc...). The number of VM of cluster can change on-demand by OpenNebula. But maybe each VM cannot know change of member of cluster. Another possibility would be to run ganglia on the virtual nodes, and query ganglia for the running hosts available for the MPI jobs. Yours, Steffen -- IPB HalleAG Massenspektrometrie Bioinformatik Dr. Steffen Neumann http://www.IPB-Halle.DE Weinberg 3 http://msbi.bic-gh.de 06120 Halle Tel. +49 (0) 345 5582 - 1470 +49 (0) 345 5582 - 0 sneumann(at)IPB-Halle.DE Fax. +49 (0) 345 5582 - 1409 ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Creating virtual machines from scratch
Hi, You can also create an empty image with a template similar to this one (see [1] for more info): NAME = new_img TYPE = DATABLOCK SIZE = 512000 FSTYPE= ext3 Or create an empty disk instead, as explained in [2]. You can change the boot device with the OS/BOOT attribute, see [3]. Regarding your last question, Do I really have to delete and recreate it?, you can change the template with the command 'onetemplate update', and the next instance will use the new boot attribute. Regards. [1] http://opennebula.org/documentation:rel3.0:img_template [2] http://opennebula.org/documentation:rel3.2:template#declaring_the_disk_type [3] http://opennebula.org/documentation:rel3.2:template#os_and_boot_options_section [4] http://lists.opennebula.org/pipermail/users-opennebula.org/2011-April/004893.html [5] http://lists.opennebula.org/pipermail/users-opennebula.org/2011-May/005188.html -- Carlos Martín, MSc Project Engineer OpenNebula - The Open Source Toolkit for Data Center Virtualization www.OpenNebula.org | cmar...@opennebula.org | @OpenNebulahttp://twitter.com/opennebulacmar...@opennebula.org On Fri, Dec 9, 2011 at 5:22 PM, richard -rw- weinberger richard.weinber...@gmail.com wrote: Fabian, On Fri, Dec 9, 2011 at 5:10 PM, Fabian Wenk fab...@wenks.ch wrote: Hello Richard On 08.12.2011 17:45, richard -rw- weinberger wrote: I'm a bit confused how to create a vm from scratch. Assume I want a vm running with CentOS6 and a new virtual hard disk of 500GiB. How can I create a new disk using OpenNebula (especially with Sunstone)? I do not know how to do this steps in Sunstone, I did it with the command line tools. Create the image manually (outside of OpenNebula) with this steps (for KVM): On a system which has KVM available: qemu-img create -f raw servername.img 10G qemu-system-x86_64 -hda servername.img -cdrom /path/to/install.iso -boot d -m 512 Connect through VNC for installation, the above command will report you the used port (default 5900), see blow as qemu-system-x86_64 listen only on localhost for VNC qemu-system-x86_64 servername.img -m 512 # to test after install Connect through VNC login and run 'poweroff' as root or with sudo Now on the front-end: Create an image template (servername-image.one) oneimage register servername-image.one Create an VM template for the host (servername.one) onevm create servername.one Connect to VNC on the cluster node: I do not know about your workstation, but from my Mac client I use Chicken [1], which supports connection through ssh. I guess there is a VNC client for the OS of your workstation available which also can do this. Else you could run it with manual ssh forwarding like this: ssh -L localhost:5900:localhost:5907 server-with-KVM replace 5907 with the port which qemu-system-x86_64 as reported and then use the local VNC client to connect to localhost port 5900. [1] http://sourceforge.net/projects/chicken/ In my setup each vm will have it's own disk image, thus no disk image needs to be copied. Is there a way to enforce this? The best is to register each image in the Image Repository with 'oneimage register ...' A final question, is it possible to change the boot order of a vm? Do I really have to delete and recreate it? You need to shutdown and recreate the VM. Best done with the command line tool 'onevm create template' and the template you can modify. Hmm, I feared these kind of answers. :-( Such a workflow unacceptable for my end-users. -- Thanks, //richard ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] How opennebula use vmware drivers addon to manage esx/esxi4.1?
Hi, VMware Server is a not stand-alone hypervisor, previous to ESX. OpenNebula doesn't currently support full integration with vCenter, although there is work in progress to use it to provide livemigration capabilities with vMotion through OpenNebula. For now, the alternative is to manage each host individually adding them to OpenNebula through onehost create command. Regards, -Tino -- Constantino Vázquez Blanco, MSc Project Engineer OpenNebula - The Open Source Toolkit for Data Center Virtualization www.OpenNebula.org | @tinova79 | @OpenNebula 2011/12/13 张光鹏 zhan...@neusoft.com: Hi: The VMware Drivers Addon enables the management of an OpenNebula cloud based on VMware ESX and/or VMware Server hypervisors. Is VMware Server means vCenter server? I read the document(http://www.opennebula.org/documentation:rel3.0:evmwareg ), i found it introduced the configuration of esx. But my esxesxi hosts are managed by vCenter server , should it work if i follow the comment -When using VMware Server, the connection string set under LIBVIRT_URI needs to have its prefix changed from esx to gsx. I mean some more configuration of how connect to vCenter server should be metioned. How could I configure this file-/etc/one/vmwarerc to connect to vCenter ? Could someone give me some guidance? Thanks All ! Best Regards zhan...@neusoft.com --- Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from your system. Thank you. --- ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Mixed mode UBUNTU+ RH KVM
Hello Nikolay, On Wed, Dec 14, 2011 at 4:06 PM, Nikolay Gar nikolay@gmail.com wrote: Hello folks ., Quick question .. If it possible to use as FrontEnd based on Ubuntu 11.04 and 2 Cluster Nodes on RH ES 6.0 as KVM nodes? Thank a lot Nikolay SSH is used to communicate with the nodes in order to either transfer the VM image, if SSH Transfer Manager is being used of course, or to gather status information about the load/health of the node. If you are using NFS as storage backend the nodes must have a compatible NFS client in order to mount the shares. libvirt is setup on the nodes in order to start/stop/deploy VMs on top of KVM. SSH, NFS are protocols and libvirt is a standard library, so your mix should work. I'm not trying to be condescending or something, just that I'm approaching your question using the mentioned logic. The docs don't specifically talk about mixing distributions. Enjoy life, v -- w: http://databus.ro/blog in: http://www.linkedin.com/pub/valentin-bud/9/881/830 t: https://twitter.com/valentinbud ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Mixed mode UBUNTU+ RH KVM
Hello Nikolay Just a little correction concerning Linux distros. There is no ES/AS in RH version 6.0 - just RH 6.0 32/64 bit. I think ES/AS ended with RH version 4.0. It was a concern of RAM limitations of 16GB in RH ES 4.0. BTW: I would not recommend your setup / IT-softwareinfrastructure as you have to update some time in future and might meet problems with versions. Furthermore you have to pay for updates from Redhat. Ubuntu is free unless you need support. Cheers Poul 2011/12/14 Valentin Bud valentin@gmail.com: Hello Nikolay, On Wed, Dec 14, 2011 at 4:06 PM, Nikolay Gar nikolay@gmail.com wrote: Hello folks ., Quick question .. If it possible to use as FrontEnd based on Ubuntu 11.04 and 2 Cluster Nodes on RH ES 6.0 as KVM nodes? Thank a lot Nikolay SSH is used to communicate with the nodes in order to either transfer the VM image, if SSH Transfer Manager is being used of course, or to gather status information about the load/health of the node. If you are using NFS as storage backend the nodes must have a compatible NFS client in order to mount the shares. libvirt is setup on the nodes in order to start/stop/deploy VMs on top of KVM. SSH, NFS are protocols and libvirt is a standard library, so your mix should work. I'm not trying to be condescending or something, just that I'm approaching your question using the mentioned logic. The docs don't specifically talk about mixing distributions. Enjoy life, v -- w: http://databus.ro/blog in: http://www.linkedin.com/pub/valentin-bud/9/881/830 t: https://twitter.com/valentinbud ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Creating virtual machines from scratch
Hi, Images can be created from Sunstone. Please use this list to ask for support if you are having trouble with this functionality. Regards. -- Carlos Martín, MSc Project Engineer OpenNebula - The Open Source Toolkit for Data Center Virtualization www.OpenNebula.org | cmar...@opennebula.org | @OpenNebulahttp://twitter.com/opennebulacmar...@opennebula.org On Wed, Dec 14, 2011 at 1:02 PM, cat fa boost.subscrib...@gmail.com wrote: You cannot create an image with Sunstone. You should create an image with kvm. 2011/12/9 richard -rw- weinberger richard.weinber...@gmail.com Hi! I'm a bit confused how to create a vm from scratch. Assume I want a vm running with CentOS6 and a new virtual hard disk of 500GiB. How can I create a new disk using OpenNebula (especially with Sunstone)? In my setup each vm will have it's own disk image, thus no disk image needs to be copied. Is there a way to enforce this? A final question, is it possible to change the boot order of a vm? Do I really have to delete and recreate it? -- Thanks, //richard ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
[one-users] [Help] How to reboot a VM when the VM crashes?
If a VM crashes, what can I do? I cannot find any command to reboot that VM. Suppose, I have some import data in that VM. ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Error from quota module when trying to create a vm or instantiate a template
Hi, I've done some more investigating and I've got a handle on what the problem is. My VM templates don't define a CPU attribute (as I'm just letting it use the default values) and therefore the code errors out trying to get a CPU value from my vm template which don't have one. This sounds like a bug to me, I'm assuming I should file it at dev.opennebula.org? Regards, Graeme On Mon, Dec 5, 2011 at 3:36 PM, Graeme Gillies graeme.r.gill...@gmail.com wrote: Hi, I have enabled the quota module on my opennebula 3 installation and now whenever I try and create a vm image, either from a template or file from disk, I get the quota module denying me. I have checked the quota limits for the user are ok. Running the command from the oned.log with ruby debug gives the following error message /var/lib/one/remotes/auth/quota/authorize:38: warning: ambiguous first argument; put parentheses or even spaces /var/lib/one/remotes/auth/quota/authorize:57: warning: ambiguous first argument; put parentheses or even spaces Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems.rb:1113 - no such file to load -- rubygems/defaults/operating_system Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:50 - no such file to load -- Win32API Exception `NoMethodError' at /usr/lib/ruby/1.8/rational.rb:78 - undefined method `gcd' for Rational(1, 2):Rational Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31 - no such file to load -- nokogiri Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31 - no such file to load -- xmlparser Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:38 - no such file to load -- xmlparser Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31 - no such file to load -- sequel /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/model/base.rb:817: warning: `*' interpreted as argument prefix /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/model/base.rb:631: warning: instance variable @dataset not initialized /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/model/base.rb:631: warning: instance variable @dataset not initialized Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31 - no such file to load -- sqlite3 Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31 - no such file to load -- sqlite3/1.8/sqlite3_native Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:38 - no such file to load -- sqlite3/1.8/sqlite3_native Exception `SQLite3::SQLException' at /usr/lib/ruby/gems/1.8/gems/sqlite3-1.3.3/lib/sqlite3/database.rb:91 - index quotas_uid_index already exists Exception `Sequel::DatabaseError' at /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/database/misc.rb:254 - SQLite3::SQLException: index quotas_uid_index already exists Exception `SQLite3::SQLException' at /usr/lib/ruby/gems/1.8/gems/sqlite3-1.3.3/lib/sqlite3/database.rb:91 - index usage_uid_index already exists Exception `Sequel::DatabaseError' at /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/database/misc.rb:254 - SQLite3::SQLException: index usage_uid_index already exists /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/dataset/actions.rb:130: warning: instance variable @row_proc not initialized /usr/lib/ruby/gems/1.8/gems/sequel-3.29.0/lib/sequel/dataset/actions.rb:130: warning: instance variable @row_proc not initialized Exception `TypeError' at /usr/lib/one/ruby/quota.rb:199 - can't convert nil into Float /usr/lib/one/ruby/quota.rb:199:in `Float': can't convert nil into Float (TypeError) from /usr/lib/one/ruby/quota.rb:199:in `send' from /usr/lib/one/ruby/quota.rb:199:in `check_quotas' from /usr/lib/one/ruby/quota.rb:194:in `each' from /usr/lib/one/ruby/quota.rb:194:in `check_quotas' from /usr/lib/one/ruby/quota.rb:184:in `authorize' from /var/lib/one/remotes/auth/quota/authorize:53 from /var/lib/one/remotes/auth/quota/authorize:52:in `each' from /var/lib/one/remotes/auth/quota/authorize:52 output for onequota show 1 uid cpu memory num_vms storage 1 0/3 5120/10240 4/10 0/20480 Any help would be much appreciated. Regards, Graeme ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
