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List:       rrd-users
Subject:    [rrd-users] rrdtool lastupdate, DERIVE, COUNTER
From:       Justin Carroll <justcarroll () gmail ! com>
Date:       2010-09-16 17:01:32
Message-ID: AANLkTin=gXuvpX7EKh9N468_cb-DZGZaThKmyJzK5yvJ () mail ! gmail ! com
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After some frustration I noticed that the rrdtool lastupdate returns the
last value that was updated to the specific rrd file.  I know may people are
saying "yea duh."  Never the less it took a while for me to understand that
in a rrd with a data source of type DERIVE this didn't mean the last value
that was stored in the rrd, it was the last value given to the rrd.

Is there a way to easily get the last value that was stored in the rrd? or
do I just need to fish it out of the data returned from a rrdtool fetch?

Also, is there an explanation anywhere for the information returned from an
rrdtool info query?

If I am wrong with any of this please let me know.

Justin

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After some frustration I noticed that the rrdtool lastupdate returns the last value \
that was updated to the specific rrd file.  I know may people are saying &quot;yea \
duh.&quot;  Never the less it took a while for me to understand that in a rrd with a \
data source of type DERIVE this didn&#39;t mean the last value that was stored in the \
rrd, it was the last value given to the rrd.  <div> <br></div><div>Is there a way to \
easily get the last value that was stored in the rrd? or do I just need to fish it \
out of the data returned from a rrdtool fetch?</div><div><br></div><div>Also, is \
there an explanation anywhere for the information returned from an rrdtool info \
query?</div> <div><br></div><div>If I am wrong with any of this please let me \
know.</div><div><br></div><div>Justin</div><div><div><div><br clear="all"><br><br> \
</div></div></div>



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