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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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how can i extract the start time and end time from an rrdtool acrchive?

I have been given several rrd filed containing cpu load for about a year. using rrdtool info I do see a last_update. would that be the last data point added? If so, awesome, but I don't see anything that tells me the time of the first entry. I am…
General Foch
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Windows monitoring issues in Zenoss

We are running Zenoss 4.2.5 and monitoring all kind of devices. We have an issue with Windows server monitoring; the rrd files are not updating on time. We have been observing the below error messages in all the collectors. Errors: 2017-07-24…
mohanj.2010
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Python 3 Popen calling rrdtool hangs indefinitely

I am trying to use Python's Popen() to retrieve graph data from a multiple rrd files. Due to complexity of app where the following piece of code is utilised, I rely on rrdtool graph parameter -Z for handling missing files for…
doomista
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How can I get rrdtool fetch to print out values using a 1 hr resolution

I'm trying to get rrdtool fetch to print out values with a resolution setting of 1 hr. I've set -r to 3600 (3600 seconds for one hour), and have set the start and end times to multiples of 3600, yet rrdtool just continues to print out values in…
lacrosse1991
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RRD database empty although updating

I am trying to fill a rrd database based on duration and intervals the user commits through a gui. i built a timer which calls the update-function every ... minutes. After the measurement I try to look at the collected data by using the fetch-method…
byteshark17
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Data source in rrdtool

I am trying to fetch logs and statistics data from server using rrd tool and shell script, but unable to set the data source. this is my step to do : rrdtool create latency_db.rrd \ --step 60 \ DS:pl:GAUGE:120:0:100 \ DS:rtt:GAUGE:120:0:10000000…
sachin
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RRDTool give me a blank graph

I have been trying to get this to work via trial and error and research rrdtool create attempt_db.rrd --start 1435125034 --step=10 DS:attempts:GAUGE:600:0:1000 RRA:AVERAGE:0.5:1:24 rrdtool update attempt_db.rrd
cybernard
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How can I find the reason for rrdtool's "ERROR: RPN final stack size != 1"?

I have some complex expression for rrdtool graph that is built by a script. I also think this once worked, but since then I upgraded rrdtool. Unfortunately the only output I get is ERROR: RPN final stack size != 1. Is there a way to get some better…
U. Windl
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rrd tool constellation plot and x axis plot

1) Is it possible to draw constellation plot in rrd tool ? i.e. plotting the values as dot instead of line connecting all data points. 2) Is it possible to store and plot normal integer in x axis of rrdtool graph instead of time? Thanks in advance.
Anand
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Is there a reason for pip to support only version 1.4.7 of rrdtool (and not the latest, 1.6.0)?

We want to use version 1.6.0 and have to install it by running: wget http://ftp.?.debian.org/debian/pool/main/r/rrdtool/python-rrdtool_1.6.0-1+b2_amd64.deb wget http://ftp.?.debian.org/debian/pool/main/r/rrdtool/librrd8_1.6.0-1+b2_amd64.deb wget…
oligopol
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How can i use RRDtool to plot correlated data

For Example : 1. http response times correlated to CPU usage 2. http response times related to java script function response times The objective is to establish a correlation between two variables and then see if one changes the other one follows in…
kamal
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last value becomes 0 sometimes in rrd graph when using IF and UN to set unknown value to 0

I am plotting a graph that includes variables from multiple rrd data files. I also display the last value of each variable on the graph. When I use, for example "CDEF:A=a,UN,0,a,IF,8,", then print last value of the variable A on the graph, depends…
Yue Lu
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What is the simplest way to graph rrd files in Grafana?

I have several Python scripts that output metrics to rrd formatted files. Although I have been using rrdtool for graphing, I am wondering if there is any simple way that I can directly graph rrd files in Grafana. I have found a few possibilities but…
blp
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How to populate RRD database with CPU and MEM usage data?

I have a Lighttpd server (on Centos) and would like to display 4 graphs: lighttpd traffic, lighttpd requests per second, CPU usage and MEM usage. I've set place for rrd database for lighttpd config like this: rrdtool.binary =…
Tom Smykowski
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RRD Time since last non-change of counter

I have a RRD DCOUNTER, which gets its data from the water meter: so many units since start of the program which looks at the meter. So the input might be 2,3,4,5,5,5,5,8,12,13,13,14,14,14,14,14 That means the flow is…
Leif Neland
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