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List: rrd-users
Subject: [rrd-users] Unbelievable fetch
From: Leonia Klebanov <l.klebanov () f5 ! com>
Date: 2009-06-23 17:03:09
Message-ID: D3EAD5A419F7AA45AC864B43E1BF6D0F616128B453 () exch11 ! olympus ! f5net ! com
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Hi,
Did you receive solution to have rrd graph without interrupts? I mean following question:
Hi everybody,
I've been dealing with rrdtool for 1 week. Tutorials are a good way to
understand how it works.
I'm actually testing something, but the fetch is incorrect for me.
I will try to explain my problem :
1/ First, I create my graph with that :
/usr/local/rrdtool/bin/rrdtool create test.rrd --step 300 --start 1154077200
DS:TotalAccesses:DERIVE:300:0:100000000000 RRA:AVERAGE:0.5:1:600
RRA:MAX:0.5:1:600
2/ I import values on it :
rrdtool update test.rrd --template TotalAccesses 1154077202:15543824
1154077502:15559245 1154077802:15574243 1154078105:15591902
1154078403:15609148 1154078702:15627641 1154079002:15645008
rrdtool update test.rrd --template TotalAccesses 1154079304:15661930
1154079602:15679992 1154079904:15697662 1154080202:15717262
1154080502:15736468 1154080801:15756017 1154081101:15774657
As you can see, values are every 300 seconds approximately (i.e. 5mn).
3/ I try to fetch values from the beginning :
/usr/local/rrdtool/bin/rrdtool fetch test.rrd AVERAGE -r
300 --start=1154077200 --end=1154081101
And I get that :
1154077500: 5.1403333333e+01
1154077800: 5.0002733333e+01
1154078100: nan
1154078400: 5.7872483221e+01
1154078700: 6.1809728177e+01
1154079000: 5.7916396656e+01
1154079300: nan
1154079600: 6.0610738255e+01
1154079900: nan
1154080200: 6.5771812081e+01
1154080500: 6.4031678747e+01
1154080800: 6.5372195764e+01
1154081100: 6.2144159792e+01
1154081400: nan
I think these nan ("Not A Number" I guess) means there are no values for
that timestamp.
I want a "clean graph", with no interruptions in data. I have one value in
the .rrd for every 5 minutes, so I can't see why I dont get what I want.
Maybe this is because some updates are 5mn+5sec after the previous values,
and not 5mn after exactly.
How can I get a graph without any interruptions in my data ?
I hope I have explained my problem as clearly as possible.
Thank you in advance for any help
--
Olivier
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<div class=Section1>
<p class=MsoNormal>Hi,<o:p></o:p></p>
<p class=MsoNormal>Did you receive solution to have rrd graph without interrupts?
I mean following question:<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Hi
everybody,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I've
been dealing with rrdtool for 1 week. Tutorials are a good way to \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>understand how it works.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I'm
actually testing something, but the fetch is incorrect for me.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I
will try to explain my problem :<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>1/
First, I create my graph with that :<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>/usr/local/rrdtool/bin/rrdtool create test.rrd --step 300 --start 1154077200 \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>DS:TotalAccesses:DERIVE:300:0:100000000000 RRA:AVERAGE:0.5:1:600 \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>RRA:MAX:0.5:1:600<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>2/
I import values on it :<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>rrdtool
update test.rrd --template TotalAccesses 1154077202:15543824 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154077502:15559245 1154077802:15574243 1154078105:15591902 \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154078403:15609148 1154078702:15627641 \
1154079002:15645008<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>rrdtool
update test.rrd --template TotalAccesses 1154079304:15661930 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154079602:15679992 1154079904:15697662 1154080202:15717262 \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154080502:15736468 1154080801:15756017 \
1154081101:15774657<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>As you
can see, values are every 300 seconds approximately (i.e. 5mn).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>3/
I try to fetch values from the beginning :<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>/usr/local/rrdtool/bin/rrdtool fetch test.rrd AVERAGE -r <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>300
--start=1154077200 --end=1154081101<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>And
I get that :<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154077500: 5.1403333333e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154077800: 5.0002733333e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154078100: nan<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154078400: 5.7872483221e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154078700: 6.1809728177e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154079000: 5.7916396656e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154079300: nan<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154079600: 6.0610738255e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154079900: nan<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154080200: 6.5771812081e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154080500: 6.4031678747e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154080800: 6.5372195764e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154081100: 6.2144159792e+01<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'>1154081400: nan<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I
think these nan ("Not A Number" I guess) means there are no values
for <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>that
timestamp.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I
want a "clean graph", with no interruptions in data. I have one value
in <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>the
.rrd for every 5 minutes, so I can't see why I dont get what I \
want.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Maybe
this is because some updates are 5mn+5sec after the previous values, \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>and
not 5mn after exactly.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>How
can I get a graph without any interruptions in my data ?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I
hope I have explained my problem as clearly as possible.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Thank
you in advance for any help<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier \
New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>-- \
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Olivier
<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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