Re: [libvirt-users] wrong time in guest logs

Lentes, Bernd
Tue, 28 Oct 2014 16:22:57 -0000

Eric wrote:


> -----Ursprüngliche Nachricht-----
> Von: Eric Blake [mailto:eblake@redhat.com]
> Gesendet: Dienstag, 28. Oktober 2014 17:18
> An: Lentes, Bernd; libvirt-ML (libvirt-users@redhat.com)
> Betreff: Re: [libvirt-users] wrong time in guest logs
>
> On 10/28/2014 10:08 AM, Lentes, Bernd wrote:
> > Hi,
>
> [can you convince your mailer to wrap long lines?]
>
> >
> > i have several vm's running on KVM hosts. Recently i found out
that the
> time in the log-files of the guests (/var/log/libvirt/qemu/xxx.log) is
wrong.
> The time on the guest itself is right, just the time in the log-files is
one hour
> back. Windows and linux vm's are affected. Also on another host the
same.
> Changing the clock offset does not have any influence, still the wrong time
in
> the log file.
>
> The time in libvirt logs is ALWAYS tied to UTC, precisely because that is
> unambiguous (any log that outputs timestamps in local time risks being
> misinterpreted if the log is read from a different timezone, especially if
the
> timezone name is not included as part of the timestamp).  Based on you
> email address, it looks like your problem is that Germany is coincident
with
> UTC in the summer, but one hour off in the winter, and that your
"problem"
> (which is not a bug) was made manifest because Germany left daylight
> savings this week.
>

Nearly. In summer we have in germany UTC+2, in winter UTC+1.


Bernd

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