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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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Sum two graphs, when the second RRD file is started only now

I don't know how to explain my problem.... but I have two RRD files: a.rrd b.rrd I'm trying to sum both of the files and STACK them up in the graph. like: my $bla = RRDs::graph "-", "--title","Test", "--imgformat=PNG", "--width=680", …
Ricky Levi
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rrdtool print (not graph) on same lines?

Is there a way to PRINT: everything on 1 line? Using: PRINT:e:LAST:"Current\:%8.2lf" \ PRINT:e:AVERAGE:"Avg\:%8.2lf" \ PRINT:e:MAX:"Max\:%8.2lf \n" \ I get output that looks like: Current: 32.56 Avg: 44.41 Max: 131.90 \n Current: 28.15 Avg:…
Douglas
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How to prin RRD Graph data with PHP

Thanks in advance for your time and effort. This is my first script with PHP and RRD's. While I was writing a short program for SNMP I came across with RRD a powerful tool for graphical output. I tried to wright a short operating script to imitate…
thanos
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How to calculate given time average only

Curretly I am using below CDEF settings in my rrdcgi to show day time i.e. 7AM to 11 PM. Is there any setting to calculate the average of perticular time period only. I need to show the 7 day graphs so the average should be of 7 day, day time (7AM…
Space
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Converter .rrd to json

I am working on a project where I have a database in .rrd need and converts it to json, so can create graphs with jqueryplot. I tried to use the following code in the documentation could not more, returns me the following error. start time:…
Paulo Vagner
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Collectd: RRD alternative

RRD is the default storage medium. But it is architecture-dependent (arm, x86, x64) - RRD files created from one architecture can't be read, without convertion, by another architecture. Therefore I would like to seek for alternative. However one…
Winston
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rrdtool displays other values as entered

Can anybody explain to me why I get different values when I fetch from my rrd-db than what I filled it with. Here are the commands: a. Create database rrdtool create temperature.rrd --step 300 -b 1374150100 \ DS:temp:GAUGE:300:N:N \ …
appsthatmatter
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Graph showing 1K instead of GB's about Disk's in Ganglia/RRDTool

I'm using Ganglia and RRDTool to show charts in a web page. Everything is fine, but for some machines the graphs about DISK are with some kind of bug. Here is how they look in some machines (both machine are in the same cluster): This one is…
Valter Silva
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RRD library for handling time series data in a Python application

I am working on a simulation engine using Python where I collect a lot of metrics. The simulation runs at a high speed and generates around 100K events/second (I can do some processing by consolidating these events on a per second basis). I am…
Prashanth Ellina
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Python rrdtool.create()

I have a RRD database that I am trying to create, and I have a couple loops written to build the command, which works fine, and produces the expected output. The problem arises when I actually try to run the rrdtool.create command in Python. This…
Butters
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Get a MAX number in a certain period from a rrd file

I have an rrd file in which cpu average loads are stored. I would like to know the Maximum Load during a certain period; let's assume within a day. I wrote: rrdtool fetch test.rrd MAX -r 300 -e 1364712300 -s -1h I got so many MAX numbers, so I…
user2253717
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What is this vague accusation of RRD data loss about?

I want to use CollectD to gather some statistics (about storage) and have Graphite display them nicely. Apparently this can be done either by having CollectD store the data as RRD files and pointing Graphite at those, or using a CollectD plugin to…
AmigoNico
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Import RRD files into cacti

I have rrd files collected from different hosts. Would like to import rrd files into a cacti instance. I followed what is described here http://docs.cacti.net/manual:087:8_rrdtool.05_external_rrds to generate graphs from RRD files. How to update…
Vjy
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Does anyone know of a python library for interacting with RRD files that is also compatible with Google App Engine?

I am writing an application for Google App Engine and I would like to use RRDs as the file format for graphical data. However, I am having trouble locating a GAE-compatible python library for interacting with RRD files. It looks to me like most,…
jpreed00
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Dump and update RRD file in memory

Is there a way to dump and update rrd file in memory. I know we can dump it as xml file and then read + update + restore it back as rrd. But this is not an efficient way for me as i may have to update/correct large amount of "old data" I refer…
Sumit Purohit
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