> When you suck the data out of PostgreSQL, make sure to ORDER BY the date
> in the database. If you pull the data for a single RRD out of order you
> will hit this problem.
>
> I don't think it matters when the RRD was created.
>
> Basically, the problem is that you cannot insert data in an RRD with a
> timestamp prior to the latest datapoint in the RRD. When loading an RRD
> from another source data must be inserted sequentially by timestamp or
> it will not work.

Very good point, Mike.  I've added the ORDER BY to my SQL statement.  I
should have thought of that.

This didn't fix my problem, but is a necessary step as well.  Thanks much!

Benny

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