35.3. Log file descriptions
Xen features the
xend
daemon and qemu-dm
process, two utilities that write the multiple log files to the /var/log/xen/
directory:
xend.log
is the log file that contains all the data collected by thexend
daemon, whether it is a normal system event, or an operator initiated action. All virtual machine operations (such as create, shutdown, destroy and so on) appear in this log. Thexend.log
is usually the first place to look when you track down event or performance problems. It contains detailed entries and conditions of the error messages.xend-debug.log
is the log file that contains records of event errors fromxend
and the Virtualization subsystems (such as framebuffer, Python scripts, and so on).
xen-hotplug-log
is the log file that contains data from hotplug events. If a device or a network script does not come online, the event appears here.qemu-dm.[PID].log
is the log file created by theqemu-dm
process for each fully virtualized guest. When using this log file, you must retrieve the givenqemu-dm
process PID, by using theps
command to examine process arguments to isolate theqemu-dm
process on the virtual machine. Note that you must replace the [PID] symbol with the actual PIDqemu-dm
process.
If you encounter any errors with the Virtual Machine Manager, you can review the generated data in the
virt-manager.log
file that resides in the /.virt-manager
directory. Note that every time you start the Virtual Machine Manager, it overwrites the existing log file contents. Make sure to backup the virt-manager.log
file, before you restart the Virtual Machine manager after a system error.