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Questions tagged [rrdtool]

RRDtool (acronym for round-robin database tool) aims to handle time-series data like network bandwidth, temperatures, CPU load etc.

RRDtool (acronym for round-robin database tool) aims to handle time-series data like network bandwidth, temperatures, CPU load etc. This time series data is then automatically compressed based on the RRA (acronym for round-robin archive) defined at the time of creation. This allows the data to be retrieved at a high rate, but the storage footprint remains the same over time. The downside to this is granularity is lost over time. See the RRDtool documentation for more details.

http://oss.oetiker.ch/rrdtool/doc/index.en.html

http://en.wikipedia.org/wiki/RRDtool

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RRDTool graph command insert into variable

I am using sh(1) shell script to generate RRDTool for day, week, month and year. My question is, how to make this code more effective without repeating the same code? I tried it like this but always get errors, use trailing escape character…
budsz
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RRDTOOL and custom data

I'm trying to use rrdtool to make some graphs. But it's not working as i wanted... Here is the situation: I have a file with data that are collected every 30 seconds but i can access this file only the day after. For example if i want to graph…
Franky
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How to rewrite RRD and apply an operation

I have an RRD DB which I have been writing power consumption data too, however I recently found it is 10 times too large. Is there an easy way to rewrite all of the values in it? Obviously I could export it as XML and modify but that is very…
Darius
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explain me a difference of how MRTG measures incoming data

Everyone knows that MRTG needs at least one value to be passed on it's input. In per-target options MRTG has 'gauge', 'absolute' and default (with no options) behavior of 'what to do with incoming data'. Or, how to count it. Lets look at the…
remort
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tune rrd to increase step and heartbeat (x2)

I've got a bunch of rrds being updated every 5min step = 300 ds[ExeTime].minimal_heartbeat = 600 I need to change this to every 15min. rrdtool tune allows me to change the heartbeat but not the steps. Can I simply change the heartbeat to 1800?…
Douglas
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RRD tool retrieve maximum value

am trying to get the speed and maximum values for all of my interface using rrdtool using rrdtool fetch ... etc but the max value is for the standard time ex : rrdtool fetch xxx.rrd MAX -r 7200 -s 1357041600 -e now i just need to get the highest…
user2387314
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How to create a DS to store the accumulated result of another DS with rrdtool

I want to create a rrd file with two data souces incouded. One stores the original value the data, name it 'dc'. The other stores the accumulated result of 'dc', name it 'total'. The expected formula is current(total) = previous(total) +…
Jeffrey
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RRDTool functions returns void value since PHP 5.4 upgrade

We have a php application that makes a heavy use of RRDTool both in Web scripts and CLI scripts. Since we upgraded to debian wheezy on which php 5.4 is the default, our rrdtool functions return just void at each call, with absolutely no error.…
Grooveek
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Fetch data subset from gmond

This is in the context of a small data-center setup where the number of servers to be monitored are only in double-digits and may grow only slowly to few hundreds (if at all). I am a ganglia newbie and have just completed setting up a small ganglia…
Bharadwaj
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How to record total values with rrdtool

I'm pretty sure this question has been asked several times, but either I did not find the correct answer or I didn't understand the solution. To my current problem: I have a sensor which measures the time a motor is running. The sensor is reset…
TomS
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Perl RRD::Simple no display data

I am new in Perl and also RRDs. I have tried to implement a simple example, and although it seems that is operating correctly the output is not displayed. The pictures are produced normally but there is no data in the graphs. I have been following…
Thanos
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RRD fine tuning

I have used RRD few months back , for my large application where is in I was running around 5k RRD update from my application resulting in huge I?O at my box. I tried many things to improve the performance , but IO and corresponding load just…
Jain Rach
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Which RRDTool DST (data source type) to use for a 0/1 value?

I'm already (successfully) recording and plotting 3 diff. temperature values (preset, room and outside). "rrdtool create " + config.app_dir + "/" + config.rrd_name + " " + // "--start N --step 300 " + // data bucket 5 min long …
Saran
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Jrobin vs rrd4j

I have to use any of java implementation of rrd. I have been going through rrd4j and jrobin but not sure sure which one to use. So can anyone let me know the difference between rrd4j and jrobin? -- Mini
user2823240
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Store total online users in RRDtool given login/logout, checkin/checkout logs

Given a log file with clear check-in and check-out messages per user, how can I feed this data into RRDtool to track the total users logged in to the site? (At this time, I do not care about unique users, but that would be nice too of course!) I…
JasonSmith
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