[rrd-developers] Re: FYI re crazyness with identical DS names in the same RRD

[Tobias Oetiker]

Oct 14 you sent me mail regarding [rrd-developers] FYI re crazyness with...:

*> 
*> NRG somehow [1] ended up creating an RRD with duplicate DS names:
*> 
*>  bash% rrdtool dump Abb*rrd.SAVE | grep "<name>"
*>                 <name> input </name>
*>                 <name> output </name>
*>                 <name> input </name>
*>                 <name> output </name>
*> 
*> And it seems "rrdtool update" "saves" data into the first set
*> of DSs and "rrdtool graph" reads (non-existant, er, NaN) data
*> from the second set of DSs.
*> 
*> Call it "user error" if you will.  But it was a very confusing
*> situation.

this should now get caught ...

cheers
tobi

*> 
*> I don't think I even try 
*> 
*>  rrdtool tune Abb*rrd.SAVE --data-source-rename input:crud
*> 
*> =:)
*> 
*> Perhaps rrdtool create should not allow dup DS names and perhaps
*> rrdtool tune should allow DSs to be removed.
*> 
*> later
*> steve
*> - - -
*> systems guy
*> wiscnet.net
*> 
*>  [1] don't ask!  I don't know how it happened!
*> 
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*> 
*> 

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