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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 to create a rrd file with a specific time?

I had created a rrd file with a specific time. But when i convert it into xml, i find the start time is inconsitent with the specified time. The version of rrdtool is 1.5.5. And the code is > rrdtool create abc.rrd \ > step 15 --start 1554122342 \…
wanncy
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Data retrieval/storage & graphing solution selection

Our company have a need to set up some solution, that would allow us to grap almost live (1 second interval) data, from electrical equipment. Currently, the thing we are using, is Cacti, which allows lowest read interval to 1 minute. What would be…
Deele
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Differences of using the rrdtool RRD PDP or RRA consolidation function to calculate the average reading?

I'm updating a rrdtool round-robin database with 1 minute intervals. I want to store the average value of five updates as one RRA entry in rrdtool RRD. One way to do this is like this: $ rrdtool create foo.rrd --start 1000000500 --step 60 \ >…
Martin
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How can you properly read RRD files using Java?

How can you properly read RRD files using Java? We are using tools like JRobin, etc. but my team is having problems with those tools, they don't seem to properly read the RRD files. We need to use RRDTool, and that tool is an importable library for…
Shankar Raju
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How is rrdtool PDP value calculated?

When I create a RRD database and update it with a GAUGE value 100, then value of the PDP value is set to 26.877900000. When I create a RRD database roughly a second later, then PDP value is 17.477500000: usr@PC:~$ rm foo.rrd; rrdtool create foo.rrd…
Martin
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Cacti is not generating the graphics

I have the cacti installed on the ubuntu 18.04 server and it is not generating the graphics. All information is -nan (not a number). I need to help solve it. Ask for the configuration files that I'm adding to the post.
Lucas Catani
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Convert rrd files from 32 bit ARM to x86_64

I have a lot of rrd files which got generated on a 1st Gen Cubieboard (1 GHz CPU, 1 Core, 1 GB RAM), and about a year ago, when I migrated the data loggers to an x86_64 machine, I noticed that I can no longer read those old files. I didn't know…
Daniel F
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store string data in rrd database

is it possible to store string data in rrd database for example , if i want to store Employee Name Employee Address Employee Phone Employee Mac Addr in rrd database using py-rrdtool , if it is possible then how to do that can any give me road…
Hunt
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How could I print the time of a max value in a rrdtool graph?

I've searched so many times that I'm tired to. I've a rrdtool database, with which I'm used to print the MAX, Min, Average value. Now, I would like to print the time of the max value stored in the rrd db. Here is the definition of my rrd (CPU…
Avicen
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Get Maximum and Minimum value from rrd file generated by Cacti

I have an rrd file in which traffic_in and out stats of interfaces are stored. What i want is that i want Max and min values in certain time period. I'm trying this command but it is giving me error ERROR: invalid rpn expression in: v,MAX rrdtool…
Terminator
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Adding values from multiple .rrd file

Problem =====> Basically there are three .rrd which are generated for three departments. From that we fetch three values (MIN, MAX, CURRENT) and print ins 3x3 format. There is a python script which does that. eg - Dept1: Min=10 Max=20 Cur=15 Dept2:…
Flanking Knight
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Unable to access file as a database in django

In my django application structure is as follows: __init__.py __init__.pyc models.py tests.py usage.rrd views.py views.pyc I am trying to access the usage.rrd file in views.py as follows: from django.http import HttpResponse import…
Hunt
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Updating values in an existing RRD file

I have an rrd file working fine under cacti, drawing a graph for me for more than a year from one data source. Today, I discovered that the data in the rrd file is not correct. I have corrected the data source and fixed problem for the future.…
takobaba
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Python rrdtool.OperationalError: invalid x-grid format

The code of graph.py is : # -*- coding: utf-8 -*- #!/usr/bin/python import rrdtool import time # Define the headline above the chart title="Server network traffic flow ("+time.strftime('%Y-%m-%d',time.localtime(time.time()))+")" # Generate a…
Andrew8460958
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Measure the time the temperature is ascending and descending?

Ive got a graph that displays the temperature from my wood pellets stove, what I would like is to get the time the temperature is rising vs cooling down. Anyone know how to get something like the slope of the curve in RRDTool or something similar?
Balroq
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