Re: [libvirt-users] VM migration upon shutdown in centos 7
On 01/12/2018 11:08 AM, Raman Gupta wrote:
Hi,
> I don't see your service being called.
It started when system started, see logs:
Jan 12 14:59:42 desktop4 systemd: systemd 219 running in system mode. (+PAM
+AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP
+GCRYPT +GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
Jan 12 14:59:42 desktop4 systemd: Detected architecture x86-64.
Jan 12 14:59:42 desktop4 systemd: Set hostname to <desktop4>.
Jan 12 14:59:42 desktop4 systemd: Started Create list of required static
device nodes for the current kernel.
Jan 12 14:59:42 desktop4 systemd: Started *vPreShutdownHook*.
Jan 12 14:59:42 desktop4 systemd: Starting Create Static Device Nodes in
/dev...
Oh, these are new.
> Anyway, look at libvirt-guests.service file. Looks like the following
lines cause systemd to wait for a command to finish:
The libvirt-guests.service is NOT running in either of my nodes, even
though VM is working fine.
I did not say to run the service. I said to take a look at the service
file because it implements what you want - waiting for a command to finish.
I tried starting libvirt-guests.service and added it as Requires target in
vPreShutdownHook.service, but it did not help. On reboot the VM did not
migrated.
It makes no sense to have your service requiring libvrt-guests. Either
libvirt-guests will save all your domains and thus your script has
nothing to migrate, or it will do nothing and then it's just NO-OP.
Michal