<div dir="ltr"><div>Thanks for hint, but this is working only when invoking at moment of time.<br></div><div>E.g. If I run script </div><div><br></div><div>tt=`jot - 1 30` <br>
for i in $tt <br>do <br>
t=`date +"%s"` <br>rrdtool update testing.rrd $t:5; rrdtool update testing2.rrd N:5; <br>
sleep 63; <br>done </div>
<div><br></div><div>I still see same seesaw graph (I changed from 61 to 63 to make problem more visible).</div><div>The script was run on fresh created two files, according your command. </div><div>The problem (if there is problem) lies somewhere in some rounding time, as it seems appear in both files, when I specify N, and time.</div>
<div>Here's my fresh graphs:</div><div><a href="https://javaz.org/wp-content/testing.rrd-avg.png">https://javaz.org/wp-content/testing.rrd-avg.png</a></div><div><a href="https://javaz.org/wp-content/testing2.rrd-avg.png">https://javaz.org/wp-content/testing2.rrd-avg.png</a></div>
<div><br></div><div>Could you confirm that if you run my script (with real half-hour datamining) you will have same good-looking graph?</div><div><br></div><div>BTW, I'm using rrdtool-1.4.7.</div><div><br></div><div><br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/5/16 Donovan Baarda <br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">G'day Alexander,<div>
<br></div><div>You need to read <a href="http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html" target="_blank">http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html</a>, in particular the bit towards the end about "The Heartbeat and the Step". In particular, heartbeat on the DSS is the *maximum" time between samples, otherwise they are thrown away and recorded as unknown. You can think of step/heartbeat as the "xff" of the input data. In your case I'm guessing using step=60 and heartbeat=120 is probably closest to what you want.</div>
<div><br></div><div>I looked at your seesaw-graphs blog entry and the graph you have looks like a kind of artefact of using a low heartbeat (resulting in very few valid inputs) combined with a low xff or maybe graphing options to interpolate the missing values. When i do the following;</div>
<div><br></div><div>$ rrdtool create -s 60 testing.rrd DS:cnt:GAUGE:120:U:U RRA:AVERAGE:0.5:1:1440 RRA:AVERAGE:0.5:60:720 RRA:AVERAGE:0.5:1440:365</div><div><div>$ t=`date +"%s"`</div><div>$ for ((i=$t; i<$t+60*61; i=$i+61)); do rrdtool update testing.rrd $i:5; done<br>
</div><div><div>$ rrdtool graph testing.png -s $t -S 60 DEF:cnt=testing.rrd:cnt:AVERAGE LINE1:cnt#ff0000:cnt</div></div><div><br></div><div>I get the following graph;</div><div><br></div><div><a href="http://minkirri.apana.org.au/~abo/testing.png" target="_blank"></a><br>
</div></div><div><br></div><div>Which is probably what you expect.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On 15 May 2013 11:03, Alexander Yerenkow <span dir="ltr"><<a href="mailto:yerenkow@gmail.com" target="_blank">yerenkow@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div>Hello list!</div><div>I'm having problem with GAUGE and non-regular updates of values, I described my problem fully here:<br>
</div><br><a href="https://javaz.org/2013/05/rrdtool-strange-rounding-produces-seesaw-graphs/" target="_blank">https://javaz.org/2013/05/rrdtool-strange-rounding-produces-seesaw-graphs/</a><br>
<br><div>I'd appreciate if you point me to right place where I find why I can't get what I need.<br clear="all"></div><div><br></div><div>I already tried to tune heartbeat value, but to no avail.</div><span><font color="#888888"><div>
<br></div>
<br>-- <br>Regards,<br>Alexander Yerenkow
</font></span></div>
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<br></blockquote></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><div><br></div>-- <br>Donovan Baarda </font></span></div>
</blockquote></div><br><br clear="all"><br>-- <br>Regards,<br>Alexander Yerenkow
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