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description of problem:
libvirt should remove the pid file of vm after vm offline if we restart libvirtd after start the vm
Version-Release number of selected component (if applicable):
libvirt-1.2.8-16.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1.prepare a happy vm:
# virsh list
Id Name State
----------------------------------------------------
7 test4 running
2.# cat /var/run/libvirt/qemu/test4.pid
3476
3.restart libvirtd
# service libvirtd restart
Redirecting to /bin/systemctl restart libvirtd.service
4.
# cat /var/run/libvirt/qemu/test4.pid
3476
5.destroy this vm
# virsh destroy test4
Domain test4 destroyed
6.pid file still exist
# cat /var/run/libvirt/qemu/test4.pid
3476
Actual results:
libvirt should remove the pid file of vm after vm offline if we restart libvirtd after start the vm
Expected results:
always remove the pid file when we destroy the vm
infomation:
And moving to POST:
commit 63889e0c775010d8d70b71d25340bab995aa83ce
Author: Michal Privoznik <mprivozn>
AuthorDate: Tue Mar 3 11:51:19 2015 +0100
Commit: Michal Privoznik <mprivozn>
CommitDate: Tue Mar 3 12:10:15 2015 +0100
qemuProcessReconnect: Fill in pid file path
https://bugzilla.redhat.com/show_bug.cgi?id=1197600
So, libvirt uses pid file to track pid of started qemus. Whenever
a domain is started, its pid is put into corresponding pid file.
The pid file path is generated based on domain name and stored
into domain object internals. However, it's not stored in the
status XML and therefore lost on daemon restarts. Hence, later,
when domain is being shut down, the daemon does not know which
pid file to unlink, and the correct pid file is left behind. To
avoid this, lets generate the pid file path again in
qemuProcessReconnect().
Reported-by: Luyao Huang <lhuang>
Signed-off-by: Michal Privoznik <mprivozn>
v1.2.13-39-g63889e0
I can produce this bug with build libvirt-1.2.8-16.el7.x86_64
Verify this with build libvirt-1.2.16-1.el7.x86_64
1. prepare a healthy guest, start it
# virsh list
Id Name State
----------------------------------------------------
10 vm1 running
# cat /var/run/libvirt/qemu/vm1.pid
26848
2. restart libvirtd, and check guest pid exist
# service libvirtd restart
Redirecting to /bin/systemctl restart libvirtd.service
# cat /var/run/libvirt/qemu/vm1.pid
26848
3. destroy guest, check pid disappeared
# virsh destroy vm1
Domain vm1 destroyed
# cat /var/run/libvirt/qemu/vm1.pid
cat: /var/run/libvirt/qemu/vm1.pid: No such file or directory
4. shutdown and managedsave guest to shutoff status, pid all removed automatically
move to verified
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2202.html