libvirt users - May 2013 - virtlockd, init script and kill signals

Hi,

I've read in the documentation that virtlockd uses SIGUSR1 to dump its 
state and then re-execs itself.
Now I tried it and this seems to fail because virtlockd is being 
launched without a full path (when using the init script), thus re-exec 
fails with the error:

error : virLockDaemonPreExecRestart:1092 : Unable to restart self: No 
such file or directory

Changing in the init script the PROCESS variable to

PROCESS=/usr/sbin/virtlockd

fixes this.


Also, concerning the init script:
- HUP seems to crash the daemon, so maybe it's better to be replaced by 
SIGUSR1 or removed
- path to process pid file (variable PIDFILE) needed to be changed to 
/var/run/$SERVICE.pid
- the path to the config file needed to be changed 
(/etc/sysconfig/virtlockd) to contain
   VIRTLOCKD_ARGS="-f /etc/libvirt/qemu-lockd.conf"


Hope this helps someone :-)

Franky

Also, since virtlockd needs to be started before libvirtd, the startup 
sequence number for virtlockd should be 96, not 97 for init levels 3,5

Franky

On 2013-05-06 11:29, Franky Van Liedekerke wrote:
> Hi,
> 
> I've read in the documentation that virtlockd uses SIGUSR1 to dump
> its state and then re-execs itself.
> Now I tried it and this seems to fail because virtlockd is being
> launched without a full path (when using the init script), thus
> re-exec fails with the error:
> 
> error : virLockDaemonPreExecRestart:1092 : Unable to restart self: No
> such file or directory
> 
> Changing in the init script the PROCESS variable to
> 
> PROCESS=/usr/sbin/virtlockd
> 
> fixes this.
> 
> 
> Also, concerning the init script:
> - HUP seems to crash the daemon, so maybe it's better to be replaced
> by SIGUSR1 or removed
> - path to process pid file (variable PIDFILE) needed to be changed to
> /var/run/$SERVICE.pid
> - the path to the config file needed to be changed
> (/etc/sysconfig/virtlockd) to contain
>   VIRTLOCKD_ARGS="-f /etc/libvirt/qemu-lockd.conf"
> 
> 
> Hope this helps someone :-)
> 
> Franky
> 
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