[rrd-users] Re: hwpredict/devpredict problems
pfelt at feltonline.com
Tue Apr 18 19:13:38 MEST 2006
well.... i feel a little stupid. i guess my misunderstanding of the
hw algorithm shows here, but in formulating my answer i found that
devpredict was getting filled out properly. i've upped a graph from the
rrd so you can see what my problem was:
it would appear that i didn't have enough data for hwpredict to kick in?
the last graph that i'd created was before it picked up at about 21:30
last night. it was then that i really started trying to research the
problem and joined the list.
Tobias Oetiker wrote:
> Today Patrick Felt wrote:
>> i've been having problems with hwpredict. the devpredict rra shows as
>> nan all the time. in researching what i've done wrong i found this bug:
>> a note at the bottom, added by tobi, says:
>> The problem seems only to occur when running several updates in one
>> round ... when calling rrdtool updatev once for each number then all is
>> fine. This explains why this problem went undetected for so long I guess.
>> how does on "call rrdtool updatev once for each number" ?
> Hi Pat,
> instead of calling
> rrdtool update a:x b:z
> you call
> rrdtool update a:x
> rrdtool update b:z
> or does your problem not get solved by this ?
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