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Re: [libvirt-users] virsh create error : monitor socket did not (Alex Jia)
by Josir Cardoso Gomes 16 Mar '12

16 Mar '12

Hi Alex, when I got this error, it was a vnc listener problem. Is there other actives vms on this server? try to change the port number to see if the problem was solved. <graphics type='vnc' listen='0.0.0.0' port='5909'/> Good Luck. Josir Gomes Date: Thu, 15 Mar 2012 18:07:07 +0800 > From: Alex Jia <ajia(a)redhat.com> > To: ??? <zhanggp(a)neusoft.com> > Cc: "libvirt-users(a)redhat.com" <libvirt-users(a)redhat.com> > Subject: Re: [libvirt-users] ??: ??: virsh create error : monitor > socket did not > Message-ID: <4F61BF4B.2030103(a)redhat.com> > Content-Type: text/plain; charset="gb2312" > > On 03/15/2012 05:39 PM, ??? wrote: > > sorry , i send an error template , our template like this: > It probably is a bug on libvirt 0.8.7, and I haven't met this issue > using your XML template on > rhel6.2 with libvirt-0.9.10-5.el6.x86_64, I'm not sure whether this > issue is fixed on 0.8.7-18.el6_1.4, > maybe, you may upgrade your libvirt and then try it again. > > For libvirtd log, yeah, it will be very big if you set a low debugger > level such as level 1, but > as usual, we need also some debugger information except for error, > maybe, you can filter > some important information or set debugger level to higher level to > avoid a big size log file. > in addition, if you're run virt-manager please close it, otherwise, > libvirt will record many > debugger information into libvirtd.log. > > BTW, if you don't want log file eat your the whole disk space, please > remember to change > libvirtd.conf debugger level then remove libvirtd.log and restart > libvirtd service. > > Regards, > Alex > > <domain type='kvm' > > xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> > > <name>one-9</name> > > <vcpu>1</vcpu> > > <memory>524288</memory> > > <os> > > <type arch='x86_64'>hvm</type> > > <boot dev='hd'/> > > </os> > > <devices> > > <emulator>/usr/bin/kvm</emulator> > > <disk type='file' device='disk'> > > <source file='/one_images/9/images/disk.0'/> > > <target dev='hda'/> > > <driver name='qemu' type='raw' cache='default'/> > > </disk> > > <disk type='file' device='cdrom'> > > <source file='/one_images/9/images/disk.1'/> > > <target dev='hdc'/> > > <readonly/> > > <driver name='qemu' type='raw'/> > > </disk> > > <interface type='bridge'> > > <source bridge='kvmbr0'/> > > <mac address='02:00:0b:01:01:03'/> > > </interface> > > <graphics type='vnc' listen='0.0.0.0' port='5909'/> > > </devices> > > <features> > > <acpi/> > > </features> > > </domain> > > ------------------------------------------------------------------------ > > ??? > > *????* ??? <mailto:zhanggp@neusoft.com> > > *?????* 2012-03-15 17:25 > > *????* Alex Jia <mailto:ajia@redhat.com> > > *???* ??: Re: [libvirt-users] virsh create error : monitor socket > > did not > > Hi? > > my libvirt version is 0.8.7 and qemu-kvm-0.12.1.2 on redhat6.1. > > I don't set libvirt log, so thank you for reminding me. > > I think my template is right ,because my code generate automatically. > > But i would like to share with you and find the problem. > > By the way , i configured the libvirt log, and i find this file kept > > getting bigger. If this file becomes large enough , i don't think it's > > a good thing , so, you must have some advise to handle it ,right? > > Thanks. > > ------------------------------------------------------------------------ > > ??? > > *????* Alex Jia <mailto:ajia@redhat.com> > > *?????* 2012-03-15 16:56 > > *????* ??? <mailto:zhanggp@neusoft.com> > > *???* libvirt-users <mailto:libvirt-users@redhat.com> > > *???* Re: [libvirt-users] virsh create error : monitor socket did not > > On 03/15/2012 11:31 AM, ??? wrote: > >> Hi, > >> Occasionally I run into this situation , i created a vm-template and > >> i use "virsh create vm-template " to start a vm .After a pause , i > >> got this error : > >> virsh create error : monitor socket did not ; > > Could you provide your libvirt & qemu-kvm version ? what's your > > platform? fedora or others? > >> Then i try again with the same template and the same command , my vm > >> created successfully. > >> I try to find something in the file of > >> /var/log/libvrit/qemu/vm-template.log, but i cannot find useful > >> things except some parameters. > > However, it's helpful if you may attach the above log as a attachment. > > in addition, you may add the following lines into > > /etc/libvirt/libvirtd.conf and restart libvirtd service then repeat > > 'virsh create vm-template' again: > > > > log_filters="3:remote 3:event 1:qemu 1:libvirt 1:conf" > > log_outputs="1:file:/var/log/libvirt/libvirtd.log" > > > > Could you attach /var/log/libvirt/libvirtd.log as a attachment in here? > >> So , i wonder whether my host running vms too much ? I make sure that > >> my template is right, and this error occasionally appear a few times. > > But if you can attach your guest XML template as a attachment, maybe, > > I can exclude other reason. > > > > Regards, > > Alex > >> Can someone teach me ? > >> Thanks. > >> Best regards. > >> ------------------------------------------------------------------------ > >> ??? > >> tel: 13718913184 > >> mail: zhanggp(a)neusoft.com <mailto:zhanggp@neusoft.com> > >> ???????? > >> ?????????? > >> http://www.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. > >> > --------------------------------------------------------------------------------------------------- > >> > >> > >> > >> _______________________________________________ > >> libvirt-users mailing list > >> libvirt-users(a)redhat.com > >> https://www.redhat.com/mailman/listinfo/libvirt-users > > > > > --------------------------------------------------------------------------------------------------- > > 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. > > > --------------------------------------------------------------------------------------------------- > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20120315/d9139b5d… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: not available > Type: image/jpeg > Size: 11635 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20120315/d9139b5d… > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 27, Issue 27 > ********************************************* >

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[libvirt-users] no connection driver available for No connection for URI xen:///
by Su Zhang 16 Mar '12

16 Mar '12

Hi all, I am trying to use virt-install to install domU image. However, I encountered the following issue. It seems that a connection driver is needed for Xen. I am new to both libvirt and Xen. Anyone have any ideas on what's wrong with the following error ? # virt-install --connect=xen:/// -p -d Thu, 15 Mar 2012 10:17:55 DEBUG Launched with command line: /usr/bin/virt-install --connect=xen:/// -p -d Thu, 15 Mar 2012 10:17:55 DEBUG Requesting libvirt URI xen:/// Thu, 15 Mar 2012 10:17:55 ERROR no connection driver available for No connection for URI xen:/// Thu, 15 Mar 2012 10:17:55 DEBUG Traceback (most recent call last): File "/usr/bin/virt-install", line 1004, in <module> sys.exit(main()) File "/usr/bin/virt-install", line 984, in main conn = cli.getConnection(options. connect) File "/usr/lib/python2.6/site-packages/virtinst/cli.py", line 327, in getConnection conn = open_connection(uri) File "/usr/lib/python2.6/site-packages/virtinst/cli.py", line 342, in open_connection open_flags) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 102, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: no connection driver available for No connection for URI xen:/// By the way, Xen is installed successfully as both "xm list" and "xm info" can output appropriately. Thanks, -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University

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[libvirt-users] Prevent starting a guest concurrently on multiple hosts when using shared storage
by Andreas Ntaflos 16 Mar '12

16 Mar '12

Hi list, Scenario: Libvirt managing KVM-based guests on multiple physical virtualisation hosts. These hosts are attached to some kind of shared storage, be it NFS, GFS2 or whatever. Guest images live on the shared storage so that VMs can be migrated (live or not) between the physical hosts. Basically all Libvirt hosts have definitions of all guests. How can I prevent the same guest from being started on different hosts concurrently, either by accident or intentionally? As far as I can see there is no locking or similar mechanism that would indicate to the Libvirt daemon that a guest (and its VM image) is already running on/in use by another host. This might be a very basic question but I can't seem to find a satisfying answer. Is it even possible? Or does using a shared storage mean that one has to be really, really careful what to start, and where? Is this even something for which Libvirt should be responsible? Any insight is appreciated. Thanks, Andreas

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[libvirt-users] Host does not support virtualization type 'xen'
by Su Zhang 16 Mar '12

16 Mar '12

Hello Community, I successfully installed and run xen (xm list and xm info (but virt_caps only has hvm) can output appropriately). However, while I was installing domU image by using virt-install -p at domU OS. I encountered an error information" Host does not support virtualization type 'xen' ". I built xen from source. Some of my friends have the same issue, but if they use pre-build xen, the issue will go away. However, I want to insist in using my version of xen (build from source). Does anyone can give any hint about this error? I asked the same question at xen community and they said this is not a issue from xen but libvirt. Meanwhile they told me I need to rebuild libvirt to adapt my current version of Xen. However, after I re-build xen (download, decompress, ./configure, make, make install), the error is still there. Can anyone let me know if I built the libvirt correctly? Do I need to do anything specific to my current version (4.1.2) of Xen? I'll appreciate if any suggestions can be given, Thanks, -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University

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[libvirt-users] Setup a network
by Felix Blanke 15 Mar '12

15 Mar '12

Hello, this isn't a bug report or an advanced usage question. This is just a question from a noob who is new to kvm and needs some help to setup a network between the host and the guests. If you're willing to spend a little time to help me out please continue reading :) See the attached image for more information. I have a host running with a public ip adress. I want to setup some vm for different tasks (webserver, mailserver, database, fileserver). I need to setup a network where the host can speak to the guests, the guest can speak to each other and the guests can speak to the host (meaning to the internet). The host also works as a firewall. Some examples: A) A package for the webserver (port 80) needs to be routed fron the host to the vm1. B) The mailserver needs to access the database. C) The mailserver needs to access the internet for sending an email. So every vm needs one interface. I don't know if it would work if I setup one virtual switch for the guest interconnections and use the host as a router to route the different ports to the vm interfaces. I hope this wasn't so confusing :) What would be the best way to accomplish my goal using virt-install and virsh. Thanks for everyone who is trying to help me out. Kind regards, Felix

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Re: [libvirt-users] 回复: 回复: virsh create error : monitor socket did not
by Alex Jia 15 Mar '12

15 Mar '12

On 03/15/2012 05:39 PM, 张光鹏 wrote: > sorry , i send an error template , our template like this: It probably is a bug on libvirt 0.8.7, and I haven't met this issue using your XML template on rhel6.2 with libvirt-0.9.10-5.el6.x86_64, I'm not sure whether this issue is fixed on 0.8.7-18.el6_1.4, maybe, you may upgrade your libvirt and then try it again. For libvirtd log, yeah, it will be very big if you set a low debugger level such as level 1, but as usual, we need also some debugger information except for error, maybe, you can filter some important information or set debugger level to higher level to avoid a big size log file. in addition, if you're run virt-manager please close it, otherwise, libvirt will record many debugger information into libvirtd.log. BTW, if you don't want log file eat your the whole disk space, please remember to change libvirtd.conf debugger level then remove libvirtd.log and restart libvirtd service. Regards, Alex > <domain type='kvm' > xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> > <name>one-9</name> > <vcpu>1</vcpu> > <memory>524288</memory> > <os> > <type arch='x86_64'>hvm</type> > <boot dev='hd'/> > </os> > <devices> > <emulator>/usr/bin/kvm</emulator> > <disk type='file' device='disk'> > <source file='/one_images/9/images/disk.0'/> > <target dev='hda'/> > <driver name='qemu' type='raw' cache='default'/> > </disk> > <disk type='file' device='cdrom'> > <source file='/one_images/9/images/disk.1'/> > <target dev='hdc'/> > <readonly/> > <driver name='qemu' type='raw'/> > </disk> > <interface type='bridge'> > <source bridge='kvmbr0'/> > <mac address='02:00:0b:01:01:03'/> > </interface> > <graphics type='vnc' listen='0.0.0.0' port='5909'/> > </devices> > <features> > <acpi/> > </features> > </domain> > ------------------------------------------------------------------------ > 张光鹏 > *发件人：* 张光鹏 <mailto:zhanggp@neusoft.com> > *发送时间：* 2012-03-15 17:25 > *收件人：* Alex Jia <mailto:ajia@redhat.com> > *主题：* 回复: Re: [libvirt-users] virsh create error : monitor socket > did not > Hi， > my libvirt version is 0.8.7 and qemu-kvm-0.12.1.2 on redhat6.1. > I don't set libvirt log, so thank you for reminding me. > I think my template is right ,because my code generate automatically. > But i would like to share with you and find the problem. > By the way , i configured the libvirt log, and i find this file kept > getting bigger. If this file becomes large enough , i don't think it's > a good thing , so, you must have some advise to handle it ,right? > Thanks. > ------------------------------------------------------------------------ > 张光鹏 > *发件人：* Alex Jia <mailto:ajia@redhat.com> > *发送时间：* 2012-03-15 16:56 > *收件人：* 张光鹏 <mailto:zhanggp@neusoft.com> > *抄送：* libvirt-users <mailto:libvirt-users@redhat.com> > *主题：* Re: [libvirt-users] virsh create error : monitor socket did not > On 03/15/2012 11:31 AM, 张光鹏 wrote: >> Hi, >> Occasionally I run into this situation , i created a vm-template and >> i use "virsh create vm-template " to start a vm .After a pause , i >> got this error : >> virsh create error : monitor socket did not ; > Could you provide your libvirt & qemu-kvm version ? what's your > platform? fedora or others? >> Then i try again with the same template and the same command , my vm >> created successfully. >> I try to find something in the file of >> /var/log/libvrit/qemu/vm-template.log, but i cannot find useful >> things except some parameters. > However, it's helpful if you may attach the above log as a attachment. > in addition, you may add the following lines into > /etc/libvirt/libvirtd.conf and restart libvirtd service then repeat > 'virsh create vm-template' again: > > log_filters="3:remote 3:event 1:qemu 1:libvirt 1:conf" > log_outputs="1:file:/var/log/libvirt/libvirtd.log" > > Could you attach /var/log/libvirt/libvirtd.log as a attachment in here? >> So , i wonder whether my host running vms too much ? I make sure that >> my template is right, and this error occasionally appear a few times. > But if you can attach your guest XML template as a attachment, maybe, > I can exclude other reason. > > Regards, > Alex >> Can someone teach me ? >> Thanks. >> Best regards. >> ------------------------------------------------------------------------ >> 张光鹏 >> tel: 13718913184 >> mail: zhanggp(a)neusoft.com <mailto:zhanggp@neusoft.com> >> 移动互联网事业部 >> 东软集团股份有限公司 >> http://www.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. >> --------------------------------------------------------------------------------------------------- >> >> >> >> _______________________________________________ >> libvirt-users mailing list >> libvirt-users(a)redhat.com >> https://www.redhat.com/mailman/listinfo/libvirt-users > > --------------------------------------------------------------------------------------------------- > 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. > ---------------------------------------------------------------------------------------------------

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[libvirt-users] virsh create error : monitor socket did not
by 张光鹏 15 Mar '12

15 Mar '12

Hi, Occasionally I run into this situation , i created a vm-template and i use "virsh create vm-template " to start a vm .After a pause , i got this error : virsh create error : monitor socket did not ; Then i try again with the same template and the same command , my vm created successfully. I try to find something in the file of /var/log/libvrit/qemu/vm-template.log, but i cannot find useful things except some parameters. So , i wonder whether my host running vms too much ? I make sure that my template is right, and this error occasionally appear a few times. Can someone teach me ? Thanks. Best regards. 张光鹏 tel: 13718913184 mail: zhanggp(a)neusoft.com 移动互联网事业部东软集团股份有限公司 http://www.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. ---------------------------------------------------------------------------------------------------

2 1

Re: [libvirt-users] Memory statistics for DomU's
by inge85＠web.de 15 Mar '12

15 Mar '12

2 1

[libvirt-users] Memory statistics for DomU's
by inge85＠web.de 15 Mar '12

15 Mar '12

2 1

[libvirt-users] Weird behavior with LVM storage pool on host
by Ernesto Domato 15 Mar '12

15 Mar '12

Hi list, the problem that I'm having seems to be between libvirtd and udev I have two hosts with LVM. The root partition run over this LVM. After booting the machine, if I do "udevadm settle" it responds almost instantly but then if I launch libvirtd the "udevadm settle" command doesn't respond for about 2 to 3 minutes and the only way to solve this is to restart the uded daemon. This behavior happens on both hosts. The only difference between both is that one has the root partition and storage pool over the same LVM group and disk. The other has separate disks and LVM groups. Have someone experienced something like this or can help me how to debug and solve this problem?. Thanks for all. Ernesto

1 0

[libvirt-users] libvirt with sanlock
by Frido Roose 14 Mar '12

14 Mar '12

Hello, I configured libvirtd with the sanlock lock manager plugin: # rpm -qa | egrep "libvirt-0|sanlock-[01]" libvirt-lock-sanlock-0.9.4-23.el6_2.4.x86_64 sanlock-1.8-2.el6.x86_64 libvirt-0.9.4-23.el6_2.4.x86_64 # egrep -v "^#|^$" /etc/libvirt/qemu-sanlock.conf auto_disk_leases = 1 disk_lease_dir = "/var/lib/libvirt/sanlock" host_id = 4 # mount | grep sanlock /dev/mapper/kvm--shared-sanlock on /var/lib/libvirt/sanlock type gfs2 (rw,noatime,hostdata=jid=0) # cat /etc/sysconfig/sanlock SANLOCKOPTS="-R 1 -o 30" I increased the sanlock io_timeout to 30 seconds (default = 10), because the sanlock dir is on a GFS2 volume and can be blocked for some time while fencing and journal recovery takes place. With the default sanlock io timeout, I get lease timeouts because IO is blocked: Mar 5 15:37:14 raiti sanlock[5858]: 3318 s1 check_our_lease warning 79 last_success 3239 Mar 5 15:37:15 raiti sanlock[5858]: 3319 s1 check_our_lease failed 80 So far, all fine, but when I restart sanlock and libvirtd, it takes about 2 * 30 seconds = 1 minute before libvirtd is usable. "virsh list" hangs during this time. I can still live with that... But it gets worse after a reboot, when running a "virsh list" even takes a couple of minutes (like about 5 minutes) before it responds. After this initial time, virsh is responding normally, so it looks like an initialization issue to me. Is this a configuration issue, a bug, or expected behavior? Thanks for any advice... Frido

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[libvirt-users] message on console by starting virt-manager , gentoo
by Marko Weber 12 Mar '12

12 Mar '12

# virt-manager /usr/share/virt-manager/virt-manager.py:306: DeprecationWarning: Importing dbus.glib to use the GLib main loop with dbus-python is deprecated. Instead, use this sequence: from dbus.mainloop.glib import DBusGMainLoop DBusGMainLoop(set_as_default=True) import dbus.glib ist that for interesr for the developers?

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[libvirt-users] run virsh as non-root user
by Qu, John (IS) 12 Mar '12

12 Mar '12

Hi, I have encountered problem running virsh as non-root user. I am using eucalyptus software on top of KVM, eucalyptus requires to run virsh as non-root user. I've found that people had similiar issue posted in the list, but I didn't find the solution. I've tried few things. 1) put user eucalyptus in the libvirt group. 2) even changed owner /var/run/libvirt/libvirt-sock to eucalyptus. it didn't help. the followins showed some debug information. I would appreciate your help. export LIBVIRT_DEBUG=1 [eucalyptus@hp-a ~]$ virsh list 21:48:08.342: 5830: info : libvirt version: 0.9.4, package: 23.el6_2.4 (CentOS BuildSystem <http://bugs.centos.org>, 2012-01-17-10:52:29, c6b18n1.dev.centos.org) 21:48:08.342: 5830: debug : virInitialize:415 : register drivers 21:48:08.342: 5830: debug : virRegisterDriver:770 : driver=0x3848dc5c40 name=Test 21:48:08.342: 5830: debug : virRegisterDriver:794 : registering Test as driver 0 21:48:08.342: 5830: debug : virRegisterNetworkDriver:587 : registering Test as network driver 0 21:48:08.342: 5830: debug : virRegisterInterfaceDriver:620 : registering Test as interface driver 0 21:48:08.342: 5830: debug : virRegisterStorageDriver:653 : registering Test as storage driver 0 21:48:08.342: 5830: debug : virRegisterDeviceMonitor:686 : registering Test as device driver 0 21:48:08.342: 5830: debug : virRegisterSecretDriver:719 : registering Test as secret driver 0 21:48:08.342: 5830: debug : virRegisterNWFilterDriver:752 : registering Test as network filter driver 0 21:48:08.342: 5830: debug : virRegisterDriver:770 : driver=0x3848dc6e00 name=ESX 21:48:08.342: 5830: debug : virRegisterDriver:794 : registering ESX as driver 1 21:48:08.342: 5830: debug : virRegisterInterfaceDriver:620 : registering ESX as interface driver 1 21:48:08.342: 5830: debug : virRegisterNetworkDriver:587 : registering ESX as network driver 1 21:48:08.342: 5830: debug : virRegisterStorageDriver:653 : registering ESX as storage driver 1 21:48:08.342: 5830: debug : virRegisterDeviceMonitor:686 : registering ESX as device driver 1 21:48:08.342: 5830: debug : virRegisterSecretDriver:719 : registering ESX as secret driver 1 21:48:08.342: 5830: debug : virRegisterNWFilterDriver:752 : registering ESX as network filter driver 1 21:48:08.342: 5830: debug : virRegisterDriver:770 : driver=0x3848dc6440 name=remote 21:48:08.342: 5830: debug : virRegisterDriver:794 : registering remote as driver 2 21:48:08.342: 5830: debug : virRegisterNetworkDriver:587 : registering remote as network driver 2 21:48:08.342: 5830: debug : virRegisterInterfaceDriver:620 : registering remote as interface driver 2 21:48:08.342: 5830: debug : virRegisterStorageDriver:653 : registering remote as storage driver 2 21:48:08.342: 5830: debug : virRegisterDeviceMonitor:686 : registering remote as device driver 2 21:48:08.342: 5830: debug : virRegisterSecretDriver:719 : registering remote as secret driver 2 21:48:08.342: 5830: debug : virRegisterNWFilterDriver:752 : registering remote as network filter driver 2 21:48:08.342: 5830: debug : virEventRegisterDefaultImpl:204 : registering default event implementation 21:48:08.342: 5830: debug : virEventPollAddHandle:112 : Add handle fd=4 events=1 cb=0x3848a40cb0 opaque=(nil) 21:48:08.342: 5830: debug : virEventPollAddHandle:116 : Used 0 handle slots, adding at least 10 more 21:48:08.342: 5830: debug : virEventPollInterruptLocked:676 : Skip interrupt, 0 0 21:48:08.342: 5830: debug : virEventRegisterImpl:177 : addHandle=0x3848a41a90 updateHandle=0x3848a40bb0 removeHandle=0x3848a40a70 addTimeout=0x3848a418f0 updateTimeout=0x3848a40cf0 removeTimeout=0x3848a40970 21:48:08.342: 5830: debug : virConnectOpenAuth:1282 : name=(null), auth=0x3848dc5bc0, flags=0 21:48:08.342: 5830: debug : do_open:1019 : no name, allowing driver auto-select 21:48:08.342: 5830: debug : do_open:1056 : trying driver 0 (Test) ... 21:48:08.342: 5830: debug : do_open:1062 : driver 0 Test returned DECLINED 21:48:08.342: 5830: debug : do_open:1056 : trying driver 1 (ESX) ... 21:48:08.342: 5830: debug : do_open:1062 : driver 1 ESX returned DECLINED 21:48:08.342: 5830: debug : do_open:1056 : trying driver 2 (remote) ... 21:48:08.343: 5830: debug : remoteOpen:825 : Auto-probe remote URI 21:48:08.343: 5830: debug : remoteOpen:828 : Auto-spawn user daemon instance 21:48:08.343: 5830: debug : doRemoteOpen:520 : proceeding with name = 21:48:08.343: 5830: debug : doRemoteOpen:530 : Connecting with transport 1 21:48:08.343: 5830: debug : doRemoteOpen:577 : Proceeding with sockname @/home/eucalyptus/.libvirt/libvirt-sock 21:48:08.343: 5830: debug : virCommandRunAsync:2048 : About to run LC_ALL=C PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/java/jdk1.6.0/jre/bin HOME=/home/eucalyptus USER=eucalyptus LOGNAME=eucalyptus /usr/sbin/libvirtd --timeout=30 21:48:08.343: 5830: debug : virCommandRunAsync:2064 : Command result 0, with PID 5831 21:48:08.345: 5830: debug : virCommandRun:1870 : Result status 0, stdout: '(null)' stderr: '(null)' --------------------------------- [eucalyptus@hp-a ~]$ id uid=501(eucalyptus) gid=501(eucalyptus) groups=501(eucalyptus),0(root),502(libvirt) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 ------------------------------------------------------------- Thanks John

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[libvirt-users] 'virsh list' issue
by wangsuyi640 09 Mar '12

09 Mar '12

Dear all: Afer run the command 'qemu-kvm -hda /root/free.img -m 512 -usbdevice tablet -vga qxl -spice port=5930,disable-ticketing' , and the VM starts natrually. Then I run the command 'virsh list' , it shows as follows: [root@localhost ~]# virsh list Id Name State ---------------------------------- [root@localhost ~]# there is no VM running! I am puzzled , can someone help me? Yours Sinerely! suyi

4 4

[libvirt-users] Setting the default Hypervisor
by RaSca 08 Mar '12

08 Mar '12

Hi all, I'm using libvirt with qemu-kvm and virtualbox on the same system. Everything is working, but I want to change the default uri fo virsh. At the moment, if i run: # virsh uri vbox:///system and because of this, if I try to list my vm(s) in this way: # virsh list --all Id Name State ---------------------------------- the output is empty. I need always to pass the uri: # virsh -c qemu:///system list --all Id Name State ---------------------------------- - ubuntu-vm shut off So, is there a way to set the default uri to be qemu:///system? I looked into /etc/default/libvirt-guests and /etc/default/libvirt-bin but I was not able to find an options (setting URIS= does not work). I'm on Debian Squeeze with backports. Thanks a lot, -- RaSca Mia Mamma Usa Linux: Niente è impossibile da capire, se lo spieghi bene! rasca(a)miamammausalinux.org http://www.miamammausalinux.org

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[libvirt-users] where is the libvirt.xml ?
by suyi wang 08 Mar '12

08 Mar '12

Hi all: My OS is now Fedora16 , and the spice server is installed on it by rpms. Then I run 'qemu-kvm -hda /root/vaddsoft.img -m 512 -vga qxl -spice port=5930,disable-ticketing' , I want to find out where is the libvirt.xml for the command . Well , I mean that the libvirt.xml is genrated automatically, not by myself manually. Wish your help! Thanks a lot! -- Yours. suyi

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[libvirt-users] tunneled VM migration error
by Shantanu Pavgi 08 Mar '12

08 Mar '12

I am getting following error with tunneled migration command: {{{ $ virsh --connect qemu:///system migrate --verbose --p2p --tunnelled 32 qemu+ssh://kvm-03/system error: operation failed: Failed to connect to remote libvirt URI qemu+ssh://kvm-03/system }}} However I am able to perform other virsh command like list, pool-list, dumpxml using the same remote libvirt URI: {{{ $ virsh --connect qemu+ssh://kvm-03/system list }}} Also, the hypervisor native migration is working fine with following command: {{{ $ virsh --connect qemu:///system migrate 31 qemu+ssh://kvm-03/system }}} I am confused why remote URI worked for some of the commands but not for the migrate command. Am I missing something with the tunneled migration command or libvirtd/qemu configuration file? Any help would be appreciated. Software versions on both systems: * CentOS 6.2 * Libvirt 0.9.4 * qemu-kvm 2:0.12.1.2-2.209.el6_2.4 -- Shantanu

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[libvirt-users] Correctly using libvirt to mount /dev/pts and /dev in an lxc application container
by David Jablonski 08 Mar '12

08 Mar '12

We would like to mount /dev and /dev/pts correctly using the libvirt xml config file instead of doing a bind mount in a container init script we use. Currently the container config is: <domain type='lxc'> <name>CentOS_57</name> <uuid>ff5d3c04-49e6-a3cc-0a14-ff13625eca3c</uuid> <memory>262144</memory> <currentMemory>262144</currentMemory> <vcpu>1</vcpu> <os> <type arch='i686'>exe</type> <init>/bin/lxc-progs</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='//home'/> <target dir='/home'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/archive/centos57-root'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='//archive'/> <target dir='/archive'/> </filesystem> <console type='pty'> <target type='serial' port='0'/> </console> </devices> </domain> The /bin/lxc-progs file is: #!/bin/sh service rsyslog start service sssd start service sshd start mount -t devtmpfs none /dev mount -t devpts none /dev/pts mount -t tmpfs none /dev/shm exec /bin/sh Basically how do we remove the above mount points in the lxc init process and use libvirt to control the mounts instead? Any help would be appreciated. Thank you. -- David W. Jablonski Systems Administrator INOC 608.204.0202 608.663.4555 djablonski(a)inoc.com www.inoc.com *** DELIVERING UPTIME ***

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Re: [libvirt-users] 回复: Re: virsh create error : monitor socket did not show up
by Osier Yang 07 Mar '12

07 Mar '12

On 03/07/2012 06:44 PM, 张光鹏 wrote: > ok,here is my log: > Using CPU model "cpu64-rhel6" > kvm: -device lsi,id=scsi0,bus=pci.0,addr=0x4: Parameter 'driver' expects > a driver name > Try with argument '?' for a list. This tells the "lsi" device is not supported by your qemu. You must configured scsi device in domain XML, and "lsilogic" is the default controller model if you don't configure it. see http://libvirt.org/formatdomain.html#elementsControllers > I had to admit that my template is error ,this is my error part: > > <disk type='file' device='disk' > > xxx > <target dev='hda'> > xxx > </disk> > <disk type='file' device='cdrom' > > <target dev='sdc'/> > </disk> > > Althroug i had handled this error ,bug i didnot quite understand . > ------------------------------------------------------------------------ > 张光鹏 > *发件人：* Osier Yang <mailto:jyang@redhat.com> > *发送时间：* 2012-03-07 19:18 > *收件人：* 张光鹏 <mailto:zhanggp@neusoft.com> > *抄送：* libvirt-users <mailto:libvirt-users@redhat.com> > *主题：* Re: [libvirt-users] virsh create error : monitor socket did not > show up > On 03/07/2012 06:22 PM, 张光鹏 wrote: > > Hi,all > > i get a problem as below when i create a vm: > > virsh create deployment.0 > > error: Failed to create domain from deployment.0 > > error: monitor socket did not show up.: No such file or directory > Generally it tells the qemu failed to start, > could you check if there is error log in > guest log (e.g. /var/log/libvirt/qemu/$guest.log) > Osier > --------------------------------------------------------------------------------------------------- > 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. > ---------------------------------------------------------------------------------------------------

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Re: [libvirt-users] libvirt-users Digest, Vol 27, Issue 11
by Jatin Kumar 07 Mar '12

07 Mar '12

How do we allow resource over provisioning in KVM ? I have already posted the same question twice but haven't got any response yet, sorry for repeating it again but its important for me, so if some one could please point me in the right direction. -- Jatin On Wed, Mar 7, 2012 at 4:58 PM, <libvirt-users-request(a)redhat.com> wrote: > Send libvirt-users mailing list submissions to > libvirt-users(a)redhat.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users > or, via email, send a message with subject or body 'help' to > libvirt-users-request(a)redhat.com > > You can reach the person managing the list at > libvirt-users-owner(a)redhat.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of libvirt-users digest..." > > > Today's Topics: > > 1. Re: virsh create error : monitor socket did not show up > (Osier Yang) > 2. virsh create error : monitor socket did not show up (???) > 3. Re: ??: Re: virsh create error : monitor socket did not show > up (Osier Yang) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 07 Mar 2012 19:18:37 +0800 > From: Osier Yang <jyang(a)redhat.com> > To: ??? <zhanggp(a)neusoft.com> > Cc: libvirt-users <libvirt-users(a)redhat.com> > Subject: Re: [libvirt-users] virsh create error : monitor socket did > not show up > Message-ID: <4F57440D.1030009(a)redhat.com> > Content-Type: text/plain; charset=GB2312 > > On 03/07/2012 06:22 PM, ??? wrote: > > Hi,all > > i get a problem as below when i create a vm: > > virsh create deployment.0 > > error: Failed to create domain from deployment.0 > > error: monitor socket did not show up.: No such file or directory > > Generally it tells the qemu failed to start, > could you check if there is error log in > guest log (e.g. /var/log/libvirt/qemu/$guest.log) > > Osier > > > > ------------------------------ > > Message: 2 > Date: Wed, 7 Mar 2012 19:02:07 +0800 > From: ??? <zhanggp(a)neusoft.com> > To: libvirt-users <libvirt-users(a)redhat.com> > Subject: [libvirt-users] virsh create error : monitor socket did not > show up > Message-ID: <201203071902069063017(a)neusoft.com> > Content-Type: text/plain; charset="gb2312" > > Hi,all > i get a problem as below when i create a vm: > virsh create deployment.0 > error: Failed to create domain from deployment.0 > error: monitor socket did not show up.: No such file or directory > > ok,here is my /var/log/libvirt/qemu/guest.log error: > > Using CPU model "cpu64-rhel6" > kvm: -device lsi,id=scsi0,bus=pci.0,addr=0x4: Parameter 'driver' expects a > driver name > Try with argument '?' for a list. > I had to admit that my template is error ,this is my error part: > <disk type='file' device='disk' > > xxx > <target dev='hda'> > xxx > </disk> > <disk type='file' device='cdrom' > > <target dev='sdc'/> > </disk> > Althroug i had handled this error ,bug i didnot quite understand . > > > > > > > ??? > tel: 13718913184 > mail: zhanggp(a)neusoft.com > ???????? > > ?????????? > http://www.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. > > --------------------------------------------------------------------------------------------------- > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20120307/5364fd69… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: 11635_??20??????logo(0(01-16-12-08-11).jpg > Type: image/jpeg > Size: 11635 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20120307/5364fd69… > > > > ------------------------------ > > Message: 3 > Date: Wed, 07 Mar 2012 20:15:09 +0800 > From: Osier Yang <jyang(a)redhat.com> > To: ??? <zhanggp(a)neusoft.com> > Cc: "libvirt-users(a)redhat.com" <libvirt-users(a)redhat.com> > Subject: Re: [libvirt-users] ??: Re: virsh create error : monitor > socket did not show up > Message-ID: <4F57514D.9080507(a)redhat.com> > Content-Type: text/plain; charset=GB2312 > > On 03/07/2012 06:44 PM, ??? wrote: > > ok,here is my log: > > Using CPU model "cpu64-rhel6" > > kvm: -device lsi,id=scsi0,bus=pci.0,addr=0x4: Parameter 'driver' expects > > a driver name > > Try with argument '?' for a list. > > This tells the "lsi" device is not supported by > your qemu. You must configured scsi device in > domain XML, and "lsilogic" is the default controller > model if you don't configure it. see > > http://libvirt.org/formatdomain.html#elementsControllers > > > I had to admit that my template is error ,this is my error part: > > > > <disk type='file' device='disk' > > > xxx > > <target dev='hda'> > > xxx > > </disk> > > <disk type='file' device='cdrom' > > > <target dev='sdc'/> > > </disk> > > > > Althroug i had handled this error ,bug i didnot quite understand . > > ------------------------------------------------------------------------ > > ??? > > *????* Osier Yang <mailto:jyang@redhat.com> > > *?????* 2012-03-07 19:18 > > *????* ??? <mailto:zhanggp@neusoft.com> > > *???* libvirt-users <mailto:libvirt-users@redhat.com> > > *???* Re: [libvirt-users] virsh create error : monitor socket did not > > show up > > On 03/07/2012 06:22 PM, ??? wrote: > > > Hi,all > > > i get a problem as below when i create a vm: > > > virsh create deployment.0 > > > error: Failed to create domain from deployment.0 > > > error: monitor socket did not show up.: No such file or directory > > Generally it tells the qemu failed to start, > > could you check if there is error log in > > guest log (e.g. /var/log/libvirt/qemu/$guest.log) > > Osier > > > --------------------------------------------------------------------------------------------------- > > 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. > > > --------------------------------------------------------------------------------------------------- > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 27, Issue 11 > ********************************************* >

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[libvirt-users] virsh create error : monitor socket did not show up
by 张光鹏 07 Mar '12

07 Mar '12

Hi,all i get a problem as below when i create a vm: virsh create deployment.0 error: Failed to create domain from deployment.0 error: monitor socket did not show up.: No such file or directory but the situation is very few. So,can some tell me about this? I just want to know why has this kind of situation. Thanks. Best Regards! 张光鹏 tel: 13718913184 mail: zhanggp(a)neusoft.com 移动互联网事业部东软集团股份有限公司 http://www.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. ---------------------------------------------------------------------------------------------------

2 1

[libvirt-users] virsh create error : monitor socket did not show up
by 张光鹏 07 Mar '12

07 Mar '12

Hi,all i get a problem as below when i create a vm: virsh create deployment.0 error: Failed to create domain from deployment.0 error: monitor socket did not show up.: No such file or directory ok,here is my /var/log/libvirt/qemu/guest.log error: Using CPU model "cpu64-rhel6" kvm: -device lsi,id=scsi0,bus=pci.0,addr=0x4: Parameter 'driver' expects a driver name Try with argument '?' for a list. I had to admit that my template is error ,this is my error part: <disk type='file' device='disk' > xxx <target dev='hda'> xxx </disk> <disk type='file' device='cdrom' > <target dev='sdc'/> </disk> Althroug i had handled this error ,bug i didnot quite understand . 张光鹏 tel: 13718913184 mail: zhanggp(a)neusoft.com 移动互联网事业部东软集团股份有限公司 http://www.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. ---------------------------------------------------------------------------------------------------

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[libvirt-users] libvirt for spice
by suyi wang 07 Mar '12

07 Mar '12

Hi all: I tried kvm on my ubuntu with the libvirt.xml file as follows: <domain type='kvm'> <name>instance-00000011</name> <memory>2097152</memory> <os> <type>hvm</type> <boot dev="hd" /> </os> <features> <acpi/> </features> <vcpu>1</vcpu> <devices> <sound model='ac97'/> <input type='tablet' bus='usb'/> <disk type='file'> <driver type='qcow2'/> <source file='/opt/stack/nova/nova/../ /instances/instance-00000011/disk'/> <target dev='vda' bus='ide'/> </disk> <disk type='file'> <driver type='qcow2'/> <source - Ignored: file='/opt/stack/nova/nova/..//instances/instance-00000011/disk.local'/> <target dev='vdb' bus='ide'/> </disk> <interface type='bridge'> <source bridge='br100'/> <mac address='02:16:3e:44:a1:dd'/> <filterref filter="nova-instance-instance-00000011-02163e44a1dd"> <parameter name="IP" value="10.0.0.2" /> <parameter name="DHCPSERVER" value="10.0.0.1" /> </filterref> </interface>  <serial type="file"> <source path='/opt/stack/nova/nova/..//instances/instance-00000011/console.log'/> <target port='1'/> </serial> <console type='pty' tty='/dev/pts/2'> <source path='/dev/pts/2'/> <target port='0'/> </console> <serial type='pty'> <source path='/dev/pts/2'/> <target port='0'/> </serial> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us' listen='0.0.0.0'/> </devices> </domain> So it works well. Howerver, I want change the remote access method by spice, I simply changed the libvirt.xml as follows: <domain type='kvm'> <name>instance-00000011</name> <memory>2097152</memory> <os> <type>hvm</type> <boot dev="hd" /> </os> <features> <acpi/> </features> <vcpu>1</vcpu> <devices> <sound model='ac97'/> <input type='tablet' bus='usb'/> <disk type='file'> <driver type='qcow2'/> <source file='/opt/stack/nova/nova/..//instances/instance-00000011/disk'/> <target dev='vda' bus='ide'/> </disk> <disk type='file'> <driver type='qcow2'/> <source file='/opt/stack/nova/nova/..//instances/instance-00000011/disk.local'/> <target dev='vdb' bus='ide'/> </disk> <interface type='bridge'> <source bridge='br100'/> <mac address='02:16:3e:44:a1:dd'/> <filterref filter="nova-instance-instance-00000011-02163e44a1dd"> <parameter name="IP" value="10.0.0.2" /> <parameter name="DHCPSERVER" value="10.0.0.1" /> </filterref> </interface>  <serial type="file"> <source path='/opt/stack/nova/nova/..//instances/instance-00000011/console.log'/> <target port='1'/> </serial> <console type='pty' tty='/dev/pts/2'> <source path='/dev/pts/2'/> <target port='0'/> </console> <serial type='pty'> <source path='/dev/pts/2'/> <target port='0'/> </serial> <graphics type='spice' port='-1' autoport='yes' keymap='en-us' listen='0.0.0.0'/> </devices> </domain> As you can see, I just change <graphics type='vnc' port='-1' autoport='yes' keymap='en-us' listen='0.0.0.0'/> to <graphics type='spice' port='-1' autoport='yes' keymap='en-us' listen='0.0.0.0'/> , But it called the error as follows: libvirtError: internal error Process exited while reading console log output: char device redirected to /dev/pts/12 TRACE: do_spice_init: starting 0.8.1 TRACE: do_spice_init: statistics shm_open failed, Permission denied" I wish someone can give me some help! Thanks!

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[libvirt-users] can't add cpu's to virtual guest
by David M. Barlieb 07 Mar '12

07 Mar '12

I have a rhel6.0 server running kvm. I have recently needed to add additional cpu's to some of the guests but cannot do it via virt-manager, can't doit using virt, and can't do it by vi the guest.xml file. Is this a bug or am I missing something? Thanks, DaveB

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[libvirt-users] [help] how can I use libvirt to get cpu usage ratio ?
by hujun_hotmail 07 Mar '12

07 Mar '12

hi experts: I am a freshman of libvirt, I have got a domU's info like: libvirt.open, lookupByID, info. But now I want to use libvirt to get a xen domU 's cpu usage ratio , how can I fulfill it ? I cannot find the API.

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