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Questions tagged [rrd]

Round Robin Database is a database that typically holds cyclical data points and remains a constant size over time.

A Round Robin Database is primarily used for monitoring purposes and usually contains time-series data such as network bandwidth, temperatures, and CPU load. The data is stored in the way that system storage footprint remains constant over time as newer data overwrites similar older data. This avoids resource expensive purge jobs and reduces complexity.

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RRD wrong values

I'm playing with RRDTool, but it shows wrong values. I have little python script: import sys import rrdtool import time i = 0 rrdtool.create( 'tempo.rrd', '--step', '10', 'DS:temp:GAUGE:20:-40:100', 'RRA:LAST:0.5:1:1500' ) while…
Taadas
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PHP and rrd : rrd_xport function returning error

I'm trying to use the rrd_xport function to read data from an RRD file. The function rrd_xport takes an array with 'options' as argument, but for the life of me I can't get it to work. It doesn't help that the function is undocumented. All I get out…
Dennis
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RRDtool Percentage calculation

I want to calculate the percentage of usage of some features of my host, by RRD queries.(I have Cacti installed and Cacti stores the monitoring data in RRD). For example if there is 1 GB total swap memory and now I have used 250 MB, the return…
masoumeh
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RRDTOOL configure script not picking up glib-2.0

I'm trying to build rrdtool-1.4.8 on a machine with CentOS 4.1, and when I run the configure script, despite adding -I/usr/include/glib-2.0 and -I/usr/lib64/glib-2.0/include to CPPFLAGS: # ./configure --disable-tcl --disable-python…
SidR
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RRD Tool Graph Highlight NAN value

Is there a way that I can have rrdGraph create a graph that highlights any missing data, rather than just leaving that space blank?
Butters
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What means and how show chart information in Ganglia/RRD Tool?

I'm using Ganglia, which use RRDTool as database, to get chart about my servers, but after installing, setting the things up, I notice that there's a bit of confusion in the way that the data are represented, at least in the Ganglia Web…
Valter Silva
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RRD4J fetch retrieving weird values

I'm trying to use RRD4J but it retrieves weird data. Maybe I'm doing something strange. I have created a database with the following functions: // MAIN DATA SOURCES rrdDef.addDatasource("create", DsType.COUNTER, 600, Double.NaN,…
Fabio A. Mazzarino
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What does the ganglia directory __SummaryInfo__ contain?

Ganglia writes cluster matrices in rrd file and keeps under the location "/var/lib/ganglia/rrds/ClusterName/" (in default configuration). In the above location there are directories for different hosts in the cluster and "__SummaryInfo__" directory …
SachinJose
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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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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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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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Saving 2D Arrays (high frequency) - structure needed

I´m searching for a solution to store 2D (int) Arrays to local disc - doesn´t sound very hard, but the frequency and the size of the arrays keep bothering me. The array size is [1400][400] and at peak times, we´re getting every 50ms an array. How…
Anton Kruk
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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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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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RRD with a high-precision?

Is it possible to use RRDs with a high-precision? And by high-precision I mean e.g. in the range of milli-seconds. If not, are there equally good alternatives to RRD with a C API that work under Linux?
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