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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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Combine separate RRD files to a single graph

Using rrd4j, how can I combine several .rrd files either into a single .rrd or (ideally) to a single graph? More details: I have several copies of essentially the same .rrd. Each file records several sensor data readings, all with the name…
Toby
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Is rrdtool also suitable for data analysis?

I use rrdtool to store bandwidth, cpu load and temperature metrics and graph them nicely. But I want to perform some analysis on that stored data, ie resample it to a minute boundry (I'm sampling every 5 seconds) and then use this data to see if a…
Daniel F
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passing a char ** to a function(const char **) in C++

I am trying to use the function rrd_update_r of the round robin database. int rrd_update_r(const char *filename,const char *_template, int argc,const char **argv); The function accepts the as 3rd and 4th…
nass
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rrdtool graph resolution changes when plotting yesterday

I am having problem with graph that plots yesterday. The resolution of Y axis looks like 1 hour. Graph is created with: rrdtool graph /ram/temperature/sensors-yesterday.png \ --end 00:00 \ --rigid \ --width 638 --height 337 \ --border 0 \ --font…
RoSi
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Using RRDTool to graph RSS feeds

I have some RSS feeds that are periodically fetched, but the time between each check is essentially random. After each fetch, the number of new items is logged along with the time of the fetch. I want to make a graph using RRDTool which combines…
hololeap
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How to get Ganglia metrics from Java code

Statement I have a cluster with an installed Ganglia monitoring service. Now I want to create a simple frontend visualisation tool which can take metrics data from Ganglia backend and graph this data. This visualisation tool is written in Java and…
maxteneff
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How to get max in and max out values from rrd files in single rrd command

We have MRTG set up to monitor the network .So for that we are using RRD tool to fetch an plotting the graph data. Now i have created a script which actually fetch data from RRD files , so from fetched data i need max in and and max out in 24 Hours.…
Vish
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RRD Tool : Add 2 rrd graphs

I have 3 RRD graphs for ipTraffic. I want to add those three RRD graphs as one to display the total ipTraffic graph. Please can someone guide me on this?
Megamind
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MRTG: rrdtool xport - Problems with exporting in/out traffic

I want to monitor + export in/out traffic data to XML with MRTG and rrdtool xport. I have several problems: The exported XML has the same timestamp for start and end in the meta section. I specified --start 1429862400 --end 1429894800, the output…
Simon Lischka
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RRDTool Value, Graph Empty

I am working with a lot of rrd files, and I just noticed that some of my rrd graphs show empty graphs despite having a very recent lastupdate. I just did a rrdtool info on my rrd files, and found something interesting. In the rrd files that have…
Jed Tan
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RRD Tool Structure and understanding

I am currently monitoring 5 different buildings, for each building there are around 300 rooms. Each room has 4 sensors, three which monitor temperature at different points of the room and one for the amount of power (killowatts) the room is…
Jack Brown
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PHP-RRD Wasn't Work

I am trying to create rrd graph by php5-rrd libraires. I am trying to draw (LASTHOUR,LASTDAY,LASTWEEK,LASTMONTH) graphs. but not work well, (maybe my RRA settings are missing). i try to use "rrd_update" function. but doesn't work. so try to use…
DingGGu
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How can I use Perl and RRD to plot ping times?

I'm trying to do my first rrd graph through Perl. I have tried RRD::Simple and rrds and just can't get either one to work. Here's what I have so far: use strict; use RRD::Simple (); # Create an interface object my $rrd = RRD::Simple->new( file =>…
Chris Muench
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plot area graph using javascriptRRD library

I am using javascriptRRD library ( http://javascriptrrd.sourceforge.net/ ) to read a rrd file and draw the graph from it. I am using javascriptrrd.wlibs.js file that is available in download section. I am using below code to call the library file …
Bhupendra
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How to change the storage path from rrdtool on the Ganglia?

How to change the storage path from rrdtool on the Ganglia? For example: I have a default configuration in my file gmetad.conf, but I want to change to other storage. how to alter this path? Where gmetad stores its round-robin databases default:…
Haschid
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