Maybe you need to enable the following flag in nova.conf:<div><br></div><div><span style="font-family:Verdana,Geneva,sans-serif;font-size:13px">resume_guests_state_on_host_boot</span>=True</div><div><br></div><div>The default is False it seems (Didn't confirm it), so if you expect the machines to be in running state when you reboot the host, you should enable that flag. Although it seems your problem seems to be when the host is not rebooted, so it may not help for your case.<br>
<br><div class="gmail_quote">On Thu, Dec 6, 2012 at 5:49 PM, Wangpan <span dir="ltr"><<a href="mailto:hzwangpan@corp.netease.com" target="_blank">hzwangpan@corp.netease.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<u></u>
<div style="LINE-HEIGHT:1.3;BORDER-RIGHT-WIDTH:0px;MARGIN:12px;BORDER-TOP-WIDTH:0px;BORDER-BOTTOM-WIDTH:0px;BORDER-LEFT-WIDTH:0px" marginheight="0" marginwidth="0">
<div><font style="BACKGROUND-COLOR:#cce8cf"><div class="im">
<div>qemu: terminating on signal 15 from pid 1957</div>
</div><div>this means the VM is shutted off by libvirtd/libvirt api, the log of my VM
is same as this,</div>
<div>so you should check who calls the libvirt to shut down your VMs.</div>
<div>I have no other ideas now, good luck, guy!</div></font></div><div class="im">
<div> </div>
<div align="left"><font color="#c0c0c0" face="Verdana">2012-12-06</font></div>
<div align="left"><font face="Verdana">
<hr style="WIDTH:122px;min-height:2px" align="left" size="2">
</font></div>
<div align="left"><font color="#c0c0c0" face="Verdana"><span>Wangpan</span></font></div>
<div><font face="Verdana">
<hr>
</font></div>
<div><font face="Verdana"><strong>发件人：</strong>pyw</font></div>
</div><div><font face="Verdana"><strong>发送时间：</strong><a href="tel:2012-12-06%C2%A017" value="+12012120617" target="_blank">2012-12-06 17</a>:34</font></div>
<div><font face="Verdana"><strong>主题：</strong>Re: Re: [Openstack] Why my vm
often change into shut off status by itself?</font></div>
<div><font face="Verdana"><strong>收件人：</strong>"Wangpan"<<a href="mailto:hzwangpan@corp.netease.com" target="_blank">hzwangpan@corp.netease.com</a>></font></div>
<div><font face="Verdana"><strong>抄送：</strong>"openstack"<<a href="mailto:openstack@lists.launchpad.net" target="_blank">openstack@lists.launchpad.net</a>></font></div><div><div class="h5">
<div><font face="Verdana"></font> </div>
<div><font face="Verdana">Individual virtual machines automatically shutoff
occurs frequently, this time all the virtual machines are automatic
shutoff at the same time.<br>
<div><br></div>
<div>If the nova failed to delete the virtual machine will cause the virtual
machine is shut down?<br></div>
<div class="gmail_extra"><br><br>
<div class="gmail_quote">2012/12/6 Wangpan <span dir="ltr"><<a href="mailto:hzwangpan@corp.netease.com" target="_blank">hzwangpan@corp.netease.com</a>></span><br>
<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote"><u></u>
<div style="LINE-HEIGHT:1.3;BORDER-RIGHT-WIDTH:0px;MARGIN:12px;BORDER-TOP-WIDTH:0px;BORDER-BOTTOM-WIDTH:0px;BORDER-LEFT-WIDTH:0px" marginheight="0" marginwidth="0">
<div><font color="#000000" size="3" face="宋体">are that all VMs shutting down at the
same time?</font></div>
<div>such as '2012-12-04 06:54:27.150+0000: shutting down' or near this
point?<br>if this is true, I guess it may be the host's problem.</div>
<div>
<div> </div>
<div align="left"><font color="#c0c0c0" face="Verdana">2012-12-06</font></div>
<div align="left"><font face="Verdana">
<hr style="MIN-HEIGHT:2px;WIDTH:122px" align="left" size="2">
</font></div>
<div align="left"><font color="#c0c0c0" face="Verdana"><span>Wangpan</span></font></div>
<div><font face="Verdana">
<hr>
</font></div>
<div><font face="Verdana"><strong>发件人：</strong>pyw</font></div></div>
<div><font face="Verdana"><strong>发送时间：</strong><a href="tel:2012-12-06%C2%A017" value="+862012120617" target="_blank">2012-12-06 17</a>:10</font></div>
<div>
<div><font face="Verdana"><strong>主题：</strong>Re: [Openstack] Why my vm often
change into shut off status by itself?</font></div></div>
<div><font face="Verdana"><strong>收件人：</strong>"Veera Reddy"<<a href="mailto:veeraready@gmail.com" target="_blank">veeraready@gmail.com</a>></font></div>
<div><font face="Verdana"><strong>抄送：</strong>"openstack"<<a href="mailto:openstack@lists.launchpad.net" target="_blank">openstack@lists.launchpad.net</a>></font></div>
<div>
<div>
<div><font face="Verdana"></font> </div>
<div><font face="Verdana">
<div>
<div>
<div>Generally if you use virsh to restart the virtual machine，it seems to be
able to use some time before shutoff again。<br></div>
<div><br></div>
<div>$ date</div>
<div>Thu Dec 6 17:04:41 CST 2012</div></div>
<div><br></div>
<div>$ virsh start instance-0000006e</div>
<div>Domain instance-0000006e started</div>
<div><br></div>
<div>$ virsh list</div>
<div> Id Name
State</div>
<div>----------------------------------</div>
<div>158 instance-0000006e running<br></div></div>
<div><br></div>
<div>/var/log/libvirt/qemu$ sudo tail -f instance-0000006e.log </div>
<div>2012-12-03 06:14:13.488+0000: shutting down</div>
<div>qemu: terminating on signal 15 from pid 1957</div>
<div>2012-12-03 06:14:59.819+0000: starting up</div>
<div>LC_ALL=C
PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-1.0 -cpu
core2duo,+lahf_lm,+aes,+popcnt,+sse4.2,+sse4.1,+cx16,-monitor,-vme -enable-kvm
-m 512 -smp 1,sockets=1,cores=1,threads=1 -name instance-0000006e -uuid
d7798df8-e225-4178-9d0b-f6691d78ce18 -nodefconfig -nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-0000006e.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew
-no-kvm-pit-reinjection -no-shutdown -drive
file=/data0/instances/instance-0000006e/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none
-device
virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
-netdev tap,fd=25,id=hostnet0 -device
rtl8139,netdev=hostnet0,id=net0,mac=fa:16:3e:17:ca:dd,bus=pci.0,addr=0x3
-chardev
file,id=charserial0,path=/data0/instances/instance-0000006e/console.log
-device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1
-device isa-serial,chardev=charserial1,id=serial1 -usb -device
usb-tablet,id=input0 -vnc <a href="http://0.0.0.0:2" target="_blank">0.0.0.0:2</a> -k en-us -vga cirrus -incoming fd:23 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5</div>
<div>char device redirected to /dev/pts/27</div>
<div>qemu: terminating on signal 15 from pid 1957</div>
<div>2012-12-04 06:54:27.150+0000: shutting down</div>
<div>2012-12-06 09:02:46.343+0000: starting up</div>
<div>LC_ALL=C
PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-1.0 -cpu
core2duo,+lahf_lm,+aes,+popcnt,+sse4.2,+sse4.1,+cx16,-monitor,-vme -enable-kvm
-m 512 -smp 1,sockets=1,cores=1,threads=1 -name instance-0000006e -uuid
d7798df8-e225-4178-9d0b-f6691d78ce18 -nodefconfig -nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-0000006e.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew
-no-kvm-pit-reinjection -no-shutdown -drive
file=/data0/instances/instance-0000006e/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none
-device
virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
-netdev tap,fd=23,id=hostnet0 -device
rtl8139,netdev=hostnet0,id=net0,mac=fa:16:3e:17:ca:dd,bus=pci.0,addr=0x3
-chardev
file,id=charserial0,path=/data0/instances/instance-0000006e/console.log
-device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1
-device isa-serial,chardev=charserial1,id=serial1 -usb -device
usb-tablet,id=input0 -vnc <a href="http://0.0.0.0:2" target="_blank">0.0.0.0:2</a> -k en-us -vga cirrus -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5</div>
<div>char device redirected to /dev/pts/30</div>
<div><br></div>
<div>We can see this two log：</div>
<div>...</div>
<div>2012-12-03 06:14:59.819+0000: starting up<br></div>
<div>...</div>
<div>2012-12-04 06:54:27.150+0000: shutting down<br></div>
<div><br></div>
<div>The vm shutoff after running one day.</div>
<div class="gmail_extra"><br><br>
<div class="gmail_quote">2012/12/6 Veera Reddy <span dir="ltr"><<a href="mailto:veeraready@gmail.com" target="_blank">veeraready@gmail.com</a>></span><br>
<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote"><br><br>
<div class="gmail_quote">On Thu, Dec 6, 2012 at 8:29 AM, pyw <span dir="ltr"><<a href="mailto:pengyuwei@gmail.com" target="_blank">pengyuwei@gmail.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px 0.8ex;PADDING-LEFT:1ex" class="gmail_quote">instance-00000040 shut
off</blockquote></div><br><br clear="all">
<div><br></div>Hi,
<div><br></div>
<div>Try to start vm with virsh command</div>
<div><br></div>
<div>" virsh start <span style="FONT-FAMILY:arial,sans-serif;COLOR:rgb(34,34,34);FONT-SIZE:13px"> </span><span style="FONT-FAMILY:arial,sans-serif;COLOR:rgb(34,34,34);FONT-SIZE:13px">instance-00000040"</span></div>
<div><span style="FONT-FAMILY:arial,sans-serif;COLOR:rgb(34,34,34);FONT-SIZE:13px"><br></span></div>
<div><font color="#222222" face="arial, sans-serif">With this we can see
what is actual problem</font></div>
<div><br></div>
<div>Regards,</div>
<div>Veera.</div></blockquote></div><br></div></font></div></div></div></div></blockquote></div><br></div></font></div></div></div></div><br>_______________________________________________<br>
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<br></blockquote></div><br></div>