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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 database definition and plotting the data -I need a second opinion

Here is what I am trying to achieve: I read my data once a day (the exact time of the day is not very important). I want to archive the values for this DS for two years back. I need to be able to look back for 2 years and I need the value for every…
MiniMe
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How to convert an array to a list of strings during function call in Ruby?

I'm trying to call RRD.create in Ruby. My RRD variables are stored in a hash and I need to construct an RRD.create call. Here is my code: pool_map = { "cleanup" => "Cleaning up", "leased" => "Leased", "ready" => "Ready" } start =…
Andrey Brindeyev
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PyRRD-0.1.0: how to call RRD.bufferValue() with data tuple?

The PyRRD doc says to call rrd.update(timestamp, value1, value2, ...) rather than listing each single value in the parameter list, I would like to call update() with a tuple, already containing the values:…
joachim weller
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rrd graph configurate query

I am updating my RRD file with some counts... For example: time: value: 12:00 120 12:05 135 12:10 154 12:20 144 12:25 0 12:30 23 13:35 36 here my RRD is updating as below logic: ((current…
Jatin Bodarya
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rrdtool fetch values are note same as entered

Why values used for updating a rrd are different than the fetches values I used this for updating: 1353702000:2000 and I got this when I fetch: 1353702000: 1.6666666667e+00 Is there a way to get the number a entered? Is there a way to format the…
Federico
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Issue with ploting graph with rrd4j

I am using rrd4j to store session count in cyclic manner (one hour cycle), looking at the xml it seems the data is updated successfully, but when i call the RrdGraph the process get struck. My code for Init, modifying and creation is as follows I am…
Vaibhav Jain
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Setting RRD deletion granularity

We currently use RRDtool through munin for trending of our services. We'd like to keep more data than we currently do, that is, we don't want the interstitial points deleted once we get the data gets older than a week. I can't find a flag that I can…
user1739960
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Invalid rpn expression in rrdtool, containing several LT and IF in a CDEF

I'm trying to create a graph with multiple data sources and I'm trying to get the minimal value of all of them. I've tried with two data sources, it's working. Below the version with 2 data sources…
Doomsday
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Converting remote RRD to JSON format

I have a project wherein I need to access remotely hosted RRD files and create a highly interactive dashboard to visualize the data (most likely using Rails/Flot etc..) I've looked into projects such as RRDTool and Jarmon (which seems to be collectd…
Nader Hendawi
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how to create png image file from the memory ？

I create a png image in the memory ,the code like this rrdtool_function_graph(605,0,$graph_data_array) when I run this print rrdtool_function_graph(605,0,$graph_data_array) It will show the png image. the question is ,how to convert it to the…
feythin
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Updates to RRD fail after new datasource added

A little background I have a single RRD that exists to hold aggregated values of 1500+ individual RRDs (there are 1500+ devices i am monitoring). I do this so that I do not hit 1500+ RRDs when I am looking to get values from every monitored device…
au_stan
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RRDtool force the step parameter when xporting data

I'm using a javascript library to visualize rrdtool data and using rrdtool xport to retreive the data from the rrd files. Today I noticed the following: When viewing the data from now-1day: there is a datapoint of 100 but when viewing the data from…
Sam Stoelinga
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How to read RRD with different architecture

I have a set of RRD files in server A and I need to read those data. I have not installed rrrdtool in server A. I tried several ways but I could not find any possible way to install rrdtool in server A. I have already raised about this RRDtool…
Shehan
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How to remove NaN from array in PHP?

How do I remove NaN values from an array in php? $array = [1, 3, 5, 3, float(NaN), 4, float(NaN)]; $desired_result = [1, 3, 5, 3, 4]; To remove any other element, I found this solution, but I can't get it to work for…
Max J.
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"rrdtool graph" command executes with no errors, but no file is created

I am trying to use rrdtool to store and graph the number of BGP updates per origin ASN. I am using the python-rrdtool package to create the RRD and populate it with data parsed from a historical CSV file. The RRD gets created successfully and the…
B Knight
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