[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
Launchpad has imported 8 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=591438. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2010-05-12T09:14:50+00:00 M wrote: Description of problem: If I have QEMU/KVM guest started in libvirtd and then restart libvirtd, libvirtd no longer knows mapping between guests and tun devices on host and quering virDomainInterfaceStats do not work. Version-Release number of selected component (if applicable): libvirt version 0.7.1 (Fedora 12 rpm: libvirt-0.7.1-15.fc12.x86_64) also tested with Centos 5.4 and libvirt 0.6.3 How reproducible: every time Steps to Reproduce: 1. Start QEMU/KVM guest with: virsh start vm01 2. restart libvirtd: /sbin/service libvrtd restart 3. Get statistics with virsh domifstat vm01 vnet0 Actual results: [root@kvm01 ~]# virsh domifstat vm01 vnet0 error: Failed to get interface stats vm01 vnet0 error: invalid argument in invalid path, 'vnet0' is not a known interface Expected results: [root@kvm01 ~]# virsh domifstat vm01 vnet0 vnet0 rx_bytes 83980 vnet0 rx_packets 1612 vnet0 rx_errs 0 vnet0 rx_drop 0 vnet0 tx_bytes 3546 vnet0 tx_packets 15 vnet0 tx_errs 0 vnet0 tx_drop 0 Additional info: I found out that after libvirtd forgets mapping for virtual interfaces. Here are the output from virsh dumpxml vm01 before restart: and after restart of libvirtd: the is missing. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/0 On 2010-05-21T17:45:26+00:00 Cole wrote: Thanks for the report, sounds like a real bug. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/1 On 2010-07-12T17:16:31+00:00 Fedora wrote: libvirt-0.8.2-1.fc13 has been submitted as an update for Fedora 13. http://admin.fedoraproject.org/updates/libvirt-0.8.2-1.fc13 Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/2 On 2010-07-12T17:22:20+00:00 Fedora wrote: libvirt-0.8.2-1.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/libvirt-0.8.2-1.fc12 Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/3 On 2010-07-13T07:43:51+00:00 Fedora wrote: libvirt-0.8.2-1.fc12 has been pushed to the Fedora 12 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update libvirt'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/libvirt-0.8.2-1.fc12 Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/4 On 2010-07-13T12:40:35+00:00 Cole wrote: Danpb, has this really been fixed? I don't remember an upstream patch addressing it. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/5 On 2010-07-13T12:54:56+00:00 Daniel wrote: Yep, in this patch: commit 362bc09a4d9441f9abd14956546777f86d8b9d79 Author: Jiri Denemark Date: Tue May 4 15:16:29 2010 +0200 Don't wipe generated iface target in active domains Wipe generated interface target only when reading configuration of inactive domains. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/6 On 2010-07-27T02:48:21+00:00 Fedora wrote: libvirt-0.8.2-1.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/comments/7 ** Changed in: libvirt (Fedora) Status: Unknown => Fix Released ** Changed in: libvirt (Fedora) Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinf
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Tags added: testcase -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/668042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Branch linked: lp:ubuntu/lucid-updates/libvirt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
This bug was fixed in the package libvirt - 0.7.5-5ubuntu27.8 --- libvirt (0.7.5-5ubuntu27.8) lucid-proposed; urgency=low * debian/patches/9903-lp668042.patch: When libvirtd is restarted, do not remove network interface details from active domains. Patched based on upstream git commit. (LP: #668042) -- Dave Walker (Daviey)Thu, 25 Nov 2010 02:41:24 + ** Changed in: libvirt (Ubuntu Lucid) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Tags added: verification-done ** Tags removed: verification-needed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
Confirmed. Before the fix: gi...@voy:~$ virsh start utest-lls32 Domain utest-lls32 started gi...@voy:~$ sudo restart libvirt-bin libvirt-bin start/running, process 8683 gi...@voy:~$ sudo virsh domifstat utest-lls32 vnet0 error: Failed to get interface stats utest-lls32 vnet0 error: invalid argument in invalid path, 'vnet0' is not a known interface After the fix: gi...@voy:~$ apt-cache policy libvirt-bin libvirt-bin: Installed: 0.7.5-5ubuntu27.8 Candidate: 0.7.5-5ubuntu27.8 Version table: *** 0.7.5-5ubuntu27.8 0 500 http://archive.ubuntu.com/ubuntu/ lucid-proposed/main Packages 100 /var/lib/dpkg/status 0.7.5-5ubuntu27.7 0 500 http://ro.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages 500 http://ro.archive.ubuntu.com/ubuntu/ lucid-security/main Packages 0.7.5-5ubuntu27 0 500 http://ro.archive.ubuntu.com/ubuntu/ lucid/main Packages gi...@voy:~$ virsh start utest-lls32 Domain utest-lls32 started gi...@voy:~$ sudo virsh domifstat utest-lls32 vnet0 vnet0 rx_bytes 3294 vnet0 rx_packets 42 vnet0 rx_errs 0 vnet0 rx_drop 0 vnet0 tx_bytes 1912 vnet0 tx_packets 18 vnet0 tx_errs 0 vnet0 tx_drop 0 gi...@voy:~$ sudo restart libvirt-bin libvirt-bin start/running, process 9232 gi...@voy:~$ sudo virsh domifstat utest-lls32 vnet0 vnet0 rx_bytes 3906 vnet0 rx_packets 54 vnet0 rx_errs 0 vnet0 rx_drop 0 vnet0 tx_bytes 1912 vnet0 tx_packets 18 vnet0 tx_errs 0 vnet0 tx_drop 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Branch linked: lp:ubuntu/lucid-proposed/libvirt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
Accepted into lucid-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance! ** Tags added: verification-needed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
@Steven, hopefully it should soon hit the -proposed archive which it's currently in the queue for. Then verification needs to be undertaken on that package (your help there would be appreciated!). Once that is done, it should land in -updates shortly afterwards. Until then, it makes sense to keep using my PPA package (which i've intentionality left the version number such that when this does hit -updates you'll upgrade automatically). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
how will I be able to tell when this hits lucid-updates ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
Dave - Ive been running the ppa package for almost a week. I can verify the fix works as expected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/668042 Title: If Libvirtd is restarted, libvirt drops active domains lose network interface info. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
I installed the package Dave. So far so good, ill let it run for a while. Thank you. -- If Libvirtd is restarted, libvirt drops active domains lose network interface info. https://bugs.launchpad.net/bugs/668042 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Changed in: libvirt (Ubuntu Lucid) Status: New => Fix Committed ** Changed in: libvirt (Ubuntu Lucid) Assignee: (unassigned) => Dave Walker (davewalker) ** Changed in: libvirt (Ubuntu) Status: Triaged => Fix Released ** Changed in: libvirt (Ubuntu Lucid) Importance: Undecided => Low -- If Libvirtd is restarted, libvirt drops active domains lose network interface info. https://bugs.launchpad.net/bugs/668042 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Also affects: libvirt (Ubuntu Lucid) Importance: Undecided Status: New -- If Libvirtd is restarted, libvirt drops active domains lose network interface info. https://bugs.launchpad.net/bugs/668042 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Description changed:
- Missing target device info makes it impossible to retrieve network usage
- information about a guest from libvirt.
+ IMPACT: If libvirt daemon is restarted, it forgets about domain interfaces
(breaking domifstat)
+ RESOLUTION: Check that the domain is inactive before wiping knowledge of it.
+ PATCH: Based on upstream commit, attached comment #6.
+ TEST CASE: (Based on Fedora bug report)
- Reproduce:
- Trigger of issue unknown.
+ {{{
+ 1. Start QEMU/KVM guest with: sudo virsh start vm01
+ 2. restart libvirtd: sudo restart libvrtd
+ 3. Get statistics with sudo virsh domifstat vm01 vnet0
- Workaround:
- Restart the guest, and the network device info reappears again.
+ Actual results:
+ $ sudo virsh domifstat vm01 vnet0
+ error: Failed to get interface stats vm01 vnet0
+ error: invalid argument in invalid path, 'vnet0' is not a known interface
- Detect:
- Use virsh with the dumpxml command to view information about a running guest.
+ Expected results:
+ $ sudo virsh domifstat vm01 vnet0
+ vnet0 rx_bytes 83980
+ vnet0 rx_packets 1612
+ vnet0 rx_errs 0
+ vnet0 rx_drop 0
+ vnet0 tx_bytes 3546
+ vnet0 tx_packets 15
+ vnet0 tx_errs 0
+ vnet0 tx_drop 0
- Good result:
- virsh # dumpxml myhost1
- ...
-
-
-
-
-
-
- ...
+ }}}
- Bad result:
- virsh # dumpxml myhost2
- ...
-
-
-
-
-
- ...
-
- I am attaching an image of my munin graphs to illustrate the effects of
- the bug.
+ REGRESSION POTENTIAL: This would seem to be low, the patch adds an
+ extra conditional statement before wiping the domain network interface
+ knowledge. The patch has been in upstream Git since 4/05/2010, and has
+ had at least one upstream release and is also in Maverick.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libvirt-bin 0.7.5-5ubuntu27.6
ProcVersionSignature: Ubuntu 2.6.32-23.37-server 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-server x86_64
Architecture: amd64
Date: Thu Oct 28 13:40:36 2010
InstallationMedia: Ubuntu-Server 10.04 LTS "Lucid Lynx" - Release amd64
(20100427)
ProcEnviron:
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
SourcePackage: libvirt
--
If Libvirtd is restarted, libvirt drops active domains lose network interface
info.
https://bugs.launchpad.net/bugs/668042
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[Bug 668042] Re: If Libvirtd is restarted, libvirt drops active domains lose network interface info.
** Bug watch added: Red Hat Bugzilla #591438 https://bugzilla.redhat.com/show_bug.cgi?id=591438 ** Also affects: libvirt (Fedora) via https://bugzilla.redhat.com/show_bug.cgi?id=591438 Importance: Unknown Status: Unknown -- If Libvirtd is restarted, libvirt drops active domains lose network interface info. https://bugs.launchpad.net/bugs/668042 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
