[mrtg] Re: Combining Log Files

Alex van den Bogaerdt alex at ergens.op.het.net
Thu Nov 21 00:05:31 MET 2002

On Wed, Nov 20, 2002 at 11:37:16AM -0800, Eldon Balzer [MRTG] wrote:
> I'm not quite sure where to split the two log files.  I looked at the old 
> log file and cut any data older then that out of the new logfile and 
> combined the two at that point...  no old data visiable... only new data.

At a certain point, the new log file only has zeros.
The old log file will have useful data at that same point.
This is where you split both files and recombine the useful parts.

You MUST have updated both files or else they aren't in sync.

Both files should have the same time stamp in the same lines
except maybe the first three lines or so.   Lines 10 and further
definately should show the same time stamp.  Not *near* the same
line number but *at* the same line number!

> Is there a way of just using the old log files by copying them over the 
> new ones...?  I know I would be missing an new captured data... but 
> there's only 7 days worth I'd be missing then... as that's how old my log 
> files are?  I tried this but none of the old data would show up in the 
> graphs?

Just as you say: copy them over.  Nothing special.  And yes, you will
have lost the recent updates.

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