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19967 Views 2 Replies Latest reply: Jul 5, 2012 9:09 PM by James Pearce RSS
evilk Rank: White Belt
evilk
24 posts since
May 8, 2009
Currently Being Moderated

Jan 29, 2010 5:55 AM

Time zone handling and RRD graphs

Another pesky little problem. My Zenoss server changed country and therefore I had to change timezone. Zenoss itself handled time zone change without problems, but RRD graphs are still living in the old time zone. RRD files contain times as epoch seconds so they are independent of time zone. If I use rrdtool dump to rrd files it shows that data is updated with correct time zone. So somewhere in Zenoss there is a setting that tells rrdtool graph to use specific time zone. Any idea how to change this without deleting & re-adding all devices?

Tags: rrdtool, time_zone
  • evilk Rank: White Belt
    evilk
    24 posts since
    May 8, 2009
    Currently Being Moderated
    1. Jan 29, 2010 8:04 AM (in response to evilk)
    Re: Time zone handling and RRD graphs

    I noticed that RRDTool infact displays the time correctly, the problem is Zenoss/Zope that adds time interval as a comment to RRD graph. You can see the problem in the attached RRD graph. Conflicting times are highlighted.

    Attachments:
  • James Pearce Rank: White Belt
    James Pearce
    13 posts since
    Jan 17, 2011
    Currently Being Moderated
    2. Jul 5, 2012 9:09 PM (in response to evilk)
    Re: Time zone handling and RRD graphs

    I am having a similar problem. I haven't moved timezones, but the RRD graphs are displaying the wrong timezone on the range descriptor exactly as yours (the "2012-07-05 to 2012-07-05" descriptor above the legend). This might have started occuring when I updated to 3.2.1 (I've been ignoring the issue for so long that I've forgotten when it started).

     

    Versions: ZenOSS 3.2.1 on Ubuntu 10.04

     

    Notes:

    • The OS has the right timezone and right time
    • ZenOSS knows the right time (when going into Advanced, the right time is displayed at the top)

     

    How can we change the timezone that is used on the range descriptor in the RRD graphs?

    zenoss1.png

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