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sr #107551: Repository clock is about 34 seconds fast

Submitter:  None
Submitted:  Fri 17 Dec 2010 01:44:53 AM UTC
   
 
Category:  Source code repositories - developer access Priority:  5 - Normal
Severity:  3 - Normal Status:  Done
Privacy:  Public Assigned to:  None
Originator Email:  -email is unavailable- Operating System:  None
Open/Closed:  Closed
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Tue 11 Jan 2011 10:52:38 PM UTC, comment #4: 

There's a (new?) issue with Xen at the moment :/
We fixed it by adding an hourly ntpdate in the VMs, as recommended by FSF sysadmins.

Sylvain Beucler <Beuc>
Sat 18 Dec 2010 05:32:15 PM UTC, comment #3: 

It's because the box rebooted, but the drift is not fixed yet.

Sylvain Beucler <Beuc>
Sat 18 Dec 2010 05:13:37 PM UTC, comment #2: 

Thanks, it is synchronized now.

Greg Chicares <chicares>
Fri 17 Dec 2010 07:53:41 PM UTC, comment #1: 

There's an issue with Xen - the master host (dom0) is NTP'd, and all the VMs should follow the master host.  But they aren't.

There seem to be a few work-arounds with random success:
http://wiki.debian.org/Xen#A.27clocksource.2BAC8-0.3ATimewentbackwards.27

I'm contacting the FSF sysadmins who are in charge of the Xen installation to see if they have a recommendation.

Sylvain Beucler <Beuc>
Fri 17 Dec 2010 01:44:53 AM UTC, original submission:  

The clock on the machine that stores svn repositories has
been slightly ahead since recovery from the compromise.
For example, the timestamp here:
  http://svn.savannah.nongnu.org/viewvc?view=rev&root=lmi&revision=5129
is 01:11:46Z, but I checked that revision in
at 01:11:12Z, immediately after synchronizing with
time.nist.gov .

Here's how a similar issue was resolved in 2007:
  http://savannah.gnu.org/support/?func=detailitem&item_id=105799#comment4

The machine for mailing lists maintains the correct time.

Anonymous

 

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Carbon-Copy List
  • -email is unavailable- added by mjflick (Updated the item)
  • -email is unavailable- added by chicares (Posted a comment)
  • -email is unavailable- added by Beuc (Posted a comment)
  • -email is unavailable- added by chicares
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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2011-08-07 mjflick Assigned toBeuc None
        Open/ClosedOpen Closed
    2011-01-11 Beuc StatusNone Done
    2010-12-17 Beuc Assigned toNone Beuc
    2010-12-17 chicares Carbon-Copy- Added chicares

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