[mrtg] Re: Graphs reset for no apparent reason

[Grossman, Benjamin]

We have been having this problem lately as well; I will search for possible
file actions, but I find it hard to figure out how some graphs would be
affected and others unaffected --- must mechanisms for file deletion that I
can think of would be more pattern-oriented than what I have see to date.
Any other ideas out there?

Solaris 9/SPARC - MRTG 2.10.5 

Benjamin k Grossman
King County ITS



-----Original Message-----
From: Koelstra, J. (Jan) [mailto:JKoelstra at MINSZW.NL] 
Sent: Wednesday, December 07, 2005 2:50 AM
To: Alex Greg; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: Graphs reset for no apparent reason



Alex,

If you don't use rrdtool the historical data from MRTG is stored in 2 files
per graph: *.log and *.old.

If you remove these 2 files MRTG will create new ones and your graphs lose
all history. My guess is that someone (or some batchjob) removed your  *.old
and *.log files.

You can put some tight security on these files to prevent anybody from
removing them again.

The only way to get history back is to restore the original *.log and *.old
files.

HTH,

Jan.

-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch] On
Behalf Of Alex Greg
Sent: Wednesday, December 07, 2005 10:36 AM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Graphs reset for no apparent reason


Hi all,

We've been successfully using MRTG for over a year to graph over 200 metrics
across our server farm. All in all I've been very happy with it. We're using
version 2.10.5 on Linux.

However, for some reason this morning, between 1:30am and 2:30am, a whole
load of our graphs got reset, i.e. we lost all the history. This is the
first time this is happened in over a year of use and nothing changed in the
config file or on that server recently that I can think might have caused
this.

Can anyone suggest what might have happened (and how we can stop it from
happening again),  and if there's any way to get the history back?

Thanks,

-- Alex

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