rrd | 易学教程

How to create a rrd file with a specific time?

阅读更多关于 How to create a rrd file with a specific time?

问题 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 \ DS:sum:GAUGE:120:U:U \ RRA:AVERAGE:0.5:1:5856 \ RRA:AVERAGE:0.5:4:20160 \ > RRA:AVERAGE:0.5:40:52704 The first few lines is like >  <row><v>NaN</v></row> >

How to read RRD file to get usage data?

阅读更多关于 How to read RRD file to get usage data?

问题 I have setup a mrtg setup with rrdtool. Now I'm planning to get incoming outgoing usage data from these RRD files and failing to find a correct way to do it. Can anyone show we how to get those usage data from rrd files. Then I can maintain a db to keep those usage data and calculate the cost etc. Thank you! 回答1: you can use rrdtool graph ... PRINT:xxx or rather rrdtool xport ... to get data out of the rrd file. If you want to get to the actual data, use rrdtool fetch . you can find tons of

Convert .rrd file to json in python

阅读更多关于 Convert .rrd file to json in python

问题 Is there any python module available for converting the .rrd file to json format ? 回答1: Following is the code I tried for generating json from rrd file. #!/usr/bin/python import rrdtool import sys def printMetric(): args = ["/var/lib/ganglia/rrds/__SummaryInfo__/cpu_system.rrd", "AVERAGE"] rrdMetric = rrdtool.fetch(args) time = rrdMetric[0][0] step = rrdMetric[0][2] sys.stdout.write(" {\n \"Key1\":\"" + rrdMetric[1][0] +\ "\",\n \"Key2\":\"" + "abcd" +\ "\",\n \"metric_name\":\"" + "cpu

Remove data from RRDTool

阅读更多关于 Remove data from RRDTool

问题 I have several graphs created by RRDTool that collected bad data during a time period of a couple hours. How can I remove the data from the RRD's during that time period so that it no longer displays? 回答1: Best method I found to do this... Use RRDTool Dump to export RRD files to XML. Open the XML file, find and edit the bad data. Restore the RRD file using RRDTool Restore . 回答2: I had a similar problem where I wanted to discard the most recent few hours from my RRDtool databases, so I wrote a

How can I update data with RRDtool?

阅读更多关于 How can I update data with RRDtool?

问题 I am using RRDtool for storing data for displaying graphs. I update the RRD by RRDs::update and this fails when trying to rewrite the information, means update data for a time in the past (e.g. someone moved the system timer back). The error I get is: ERROR: Cannot update /opt/dashboard/rrd/Disk/192.168.120.168_disk_1.rrd with '1228032301:24:24' illegal attempt to update using time 1228032301 when last update time is 1228050001 (minimum one second step) I want to always allow the rewrite, how

Remove data from RRDTool

阅读更多关于 Remove data from RRDTool

I have several graphs created by RRDTool that collected bad data during a time period of a couple hours. How can I remove the data from the RRD's during that time period so that it no longer displays? Best method I found to do this... Use RRDTool Dump to export RRD files to XML. Open the XML file, find and edit the bad data. Restore the RRD file using RRDTool Restore . I had a similar problem where I wanted to discard the most recent few hours from my RRDtool databases, so I wrote a quick script to do it (apologies for the unconventional variable names - coding style inherited from work, sigh)

adding new datasource to an existing RRD

阅读更多关于 adding new datasource to an existing RRD

问题 I have few 100s of rrds and i want to add 5 extra datasource to all of those rrds. Is it advisable to do so Whats the best way and the fastest way to do it -- Soln -- David OBrien replied in the mailing list after searching the archives ( which you should have done first ) and googling I found several people using this... with perl. Install RRD:Simple #!/usr/local/bin/perl use strict; use RRD::Simple (); my $rrd = RRD::Simple->new(); my $rrdfile=$ARGV[0]; my $source=$ARGV[1]; my $type=$ARGV[2