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rrdpython

pipy_rrdtool

rrdpython

pipy_python-rrdtool

% pip3.7 --proxy http://127.0.0.1:18080 install --upgrade --user rrdtool

• GIT

cli info

http://www.sakito.com/2012/10/rrdtool.html

tip

http://www.itmedia.co.jp/enterprise/articles/0705/25/news013_2.html

check

http://blog.majide.com/2009/02/socket-programming-server/

ネットワークの転送量は
//sys/class/net/eth2/statistics/tx_bytes
/proc/net/dev
のいずれかから

 FreeBSD の場合には
   sysctl -a | grep em1 | grep recvd

pipy_rrdtools - sample

% cat test_CREATE.py

import rrdtool

# Create Round Robin Database
rrdtool.create('test.rrd', '--start', 'now', '--step', '300', 'RRA:AVERAGE:0.5:1:1200', 'DS:temp:GAUGE:600:-273:5000')

# Feed updates to the RRD
rrdtool.update('test.rrd', 'N:32')

% cat ./test_FETCH.py

import rrdtool

result = rrdtool.fetch("test.rrd", "AVERAGE")
start, end, step = result[0]
ds = result[1]
rows = result[2]

print(ds)

print(rows)

% cat ./test_graph.py

import rrdtool

result = rrdtool.graph("graph.png", *args)
width = result[0]
height = result[1]

if result[2] is not None:
   calcpr = result[2]  # list

% cat ./test_info.py

import rrdtool

ret = rrdtool.info("test.rrd")


print(ret)

RRDtols の応用

https://heartbeats.jp/hbblog/2013/02/predict-rrdtool.html

% cat ./test02.sh

rrdtool graph g0002.png \
   --start="-1w" \
   --end="+1w" \
   --imgformat=PNG \
   --title="Load Average (5min)" \
   --height=400 \
   --width=800 \
   --lower-limit=0 \
DEF:load=/var/munin/PXY000/PXY000-load-load-g.rrd:42:MAX \
   CDEF:sm=load,10800,TREND \
   CDEF:cf=86400,-8,3600,sm,PREDICT \
   AREA:load#CC0000:"Load Average (5min)" \
   LINE1:sm#00CC00:"Smoothing" \
   LINE1:cf#0000CC:"Curve Fitting" \
   LINE2:2#CCCCCC:"Limit"

# DEF:load=/var/munin/PXY000/PXY000-load-load-g.rrd:42:AVERAGE \
#  AREA:load#CC0000:"Load Average (5min)" \
#     LINE2:2#CCCCCC:"Limit

python-rrdtool sample

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import rrdtool


def create():
    data_sources = [
       'DS:load1:GAUGE:600:0:U',
       'DS:load5:GAUGE:600:0:U',
       'DS:load15:GAUGE:600:0:U',
   ]
   rras = [
       'RRA:AVERAGE:0.5:1:600',
       'RRA:AVERAGE:0.5:6:700',
       'RRA:AVERAGE:0.5:24:775',
       'RRA:AVERAGE:0.5:288:797',
       'RRA:MAX:0.5:1:600',
       'RRA:MAX:0.5:6:700',
       'RRA:MAX:0.5:24:775',
       'RRA:MAX:0.5:288:797',
       'RRA:MIN:0.5:1:600',
       'RRA:MIN:0.5:6:700',
       'RRA:MIN:0.5:24:775',
       'RRA:MIN:0.5:288:797',
   ]

   rrdtool.create('pyload.rrd',
                  '--step', '300',
                  data_sources,
                  rras)


def main():
   create()

if __name__ == '__main__':
   main()