| 1 |
#!/usr/bin/perl -w |
| 2 |
|
| 3 |
# ----------------------------------------------------------- |
| 4 |
# i-scream graph generation script |
| 5 |
# http://www.i-scream.org.uk |
| 6 |
# |
| 7 |
# Generates graphs from rrd databases for i-scream data. |
| 8 |
# |
| 9 |
# $Author: tdb $ |
| 10 |
# $Id: graph.pl,v 1.7 2002/03/13 20:50:48 tdb Exp $ |
| 11 |
#------------------------------------------------------------ |
| 12 |
|
| 13 |
## TODO |
| 14 |
# possibly make more configurable? |
| 15 |
# -- allow configurable periods of graphs |
| 16 |
# -- comments, types, etc |
| 17 |
# -- move all to external config file |
| 18 |
|
| 19 |
$| = 1; |
| 20 |
use strict; |
| 21 |
use RRDs; |
| 22 |
|
| 23 |
# Base directory for images |
| 24 |
# (a directory will be constructed for each host under this) |
| 25 |
my($imgdir) = "/home/pkg/iscream/public_html/graphs"; |
| 26 |
|
| 27 |
# Location of RRD databases |
| 28 |
my($rrddir) = "/u1/i-scream/databases"; |
| 29 |
|
| 30 |
# / converted to a decimal then hex'd |
| 31 |
my($hex_slash) = "_2f"; |
| 32 |
# _ converted to a decimal then hex'd |
| 33 |
my($hex_underscore) = "_5f"; |
| 34 |
|
| 35 |
# Read the contents of the base directory |
| 36 |
# and pull out the list of subdirectories (except . and .. :) |
| 37 |
opendir(DIR, $rrddir); |
| 38 |
my(@rrddirlist) = grep { -d "$rrddir/$_" && !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
| 39 |
closedir DIR; |
| 40 |
|
| 41 |
# look through each directoty, as they might |
| 42 |
# contain rrds for a particular machine |
| 43 |
foreach my $machine (@rrddirlist) { |
| 44 |
# Read the contents of the directory |
| 45 |
opendir(DIR, "$rrddir/$machine"); |
| 46 |
my(@rrdlist) = grep { /\.rrd$/ && -f "$rrddir/$machine/$_" } readdir(DIR); |
| 47 |
closedir DIR; |
| 48 |
|
| 49 |
# See what rrd we have, and generate the graphs accordingly |
| 50 |
foreach my $rrd (@rrdlist) { |
| 51 |
chomp $rrd; |
| 52 |
if($rrd =~ /^(cpu)\.rrd$/) { |
| 53 |
my(@data); |
| 54 |
my(@rawdata); |
| 55 |
push @data, "LINE2:$1:idle:idle#00FF00:idle cpu"; |
| 56 |
push @data, "LINE2:$1:user:user#0000FF:user cpu"; |
| 57 |
push @data, "LINE2:$1:kernel:kernel#00FFFF:kernel cpu"; |
| 58 |
push @data, "LINE2:$1:swap:swap#FF00FF:swap cpu"; |
| 59 |
push @data, "LINE2:$1:iowait:iowait#FF0000:iowait cpu"; |
| 60 |
push @rawdata, "--upper-limit=100"; |
| 61 |
&makegraph($machine, $1, "CPU Usage for $machine", \@data, \@rawdata); |
| 62 |
} |
| 63 |
if($rrd =~ /^(mem)\.rrd$/) { |
| 64 |
my(@data); |
| 65 |
my(@rawdata); |
| 66 |
# we don't actually want to display free memory, |
| 67 |
# although we need it to do inuse... |
| 68 |
push @data, "NONE:$1:free:free#CCCCFF:free memory"; |
| 69 |
push @data, "LINE2:$1:total:total#0000FF:total memory"; |
| 70 |
# calculate inuse |
| 71 |
push @rawdata, "CDEF:inuse=total,free,-"; |
| 72 |
# and add it to the graph |
| 73 |
push @rawdata, "AREA:inuse#CCCCFF:memory in use"; |
| 74 |
push @rawdata, "--base=1024"; |
| 75 |
&makegraph($machine, $1, "Memory Usage for $machine", \@data, \@rawdata); |
| 76 |
} |
| 77 |
if($rrd =~ /^(load)\.rrd$/) { |
| 78 |
my(@data); |
| 79 |
push @data, "LINE2:$1:load1:load1#CCCCFF:1 minute load average"; |
| 80 |
push @data, "LINE2:$1:load5:load5#7777FF:5 minute load average"; |
| 81 |
push @data, "LINE2:$1:load15:load15#0000FF:15 minute load average"; |
| 82 |
&makegraph($machine, $1, "Loads for $machine", \@data); |
| 83 |
} |
| 84 |
if($rrd =~ /^(proc)\.rrd$/) { |
| 85 |
my(@data); |
| 86 |
push @data, "LINE2:$1:cpu:cpu#00FF00:cpu processes"; |
| 87 |
push @data, "LINE2:$1:sleeping:sleeping#0000FF:sleeping processes"; |
| 88 |
push @data, "LINE2:$1:stopped:stopped#00FFFF:stopped processes"; |
| 89 |
push @data, "LINE2:$1:total:total#FF00FF:total processes"; |
| 90 |
push @data, "LINE2:$1:zombie:zombie#FF0000:zombie processes"; |
| 91 |
&makegraph($machine, $1, "Processes on $machine", \@data); |
| 92 |
} |
| 93 |
if($rrd =~ /^(swap)\.rrd$/) { |
| 94 |
my(@data); |
| 95 |
my(@rawdata); |
| 96 |
# we don't actually want to display free swap, |
| 97 |
# although we need it to do inuse... |
| 98 |
push @data, "NONE:$1:free:free#CCCCFF:free swap"; |
| 99 |
push @data, "LINE2:$1:total:total#0000FF:total swap"; |
| 100 |
# calculate inuse |
| 101 |
push @rawdata, "CDEF:inuse=total,free,-"; |
| 102 |
# and add it to the graph |
| 103 |
push @rawdata, "AREA:inuse#CCCCFF:swap in use"; |
| 104 |
push @rawdata, "--base=1024"; |
| 105 |
&makegraph($machine, $1, "Swap Usage for $machine", \@data, \@rawdata); |
| 106 |
} |
| 107 |
if($rrd =~ /^(users)\.rrd$/) { |
| 108 |
my(@data); |
| 109 |
push @data, "AREA:$1:count:count#CCCCFF:user count"; |
| 110 |
&makegraph($machine, $1, "User Count for $machine", \@data); |
| 111 |
} |
| 112 |
if($rrd =~ /^(disk)-(\S+).rrd$/) { |
| 113 |
my(@data); |
| 114 |
my(@rawdata); |
| 115 |
push @data, "LINE2:$1-$2:kbytes:kbytes#0000FF:total size"; |
| 116 |
push @data, "AREA:$1-$2:used:used#CCCCFF:used"; |
| 117 |
push @rawdata, "--base=1024"; |
| 118 |
my($type) = $1; |
| 119 |
my($name) = $2; |
| 120 |
my($nicename) = $2; |
| 121 |
$nicename =~ s/$hex_slash/\//g; |
| 122 |
$nicename =~ s/$hex_underscore/_/g; |
| 123 |
&makegraph($machine, "$type-$name", "Disk Usage for $machine on $nicename", \@data, \@rawdata); |
| 124 |
} |
| 125 |
# probably a queue with a name like this :) |
| 126 |
if($rrd =~ /^(\d+)_0\.rrd$/) { |
| 127 |
my(@data); |
| 128 |
my(@rawdata); |
| 129 |
my($baserrd) = $1; |
| 130 |
my($i) = 0; |
| 131 |
while( -f "$rrddir/$machine/$baserrd\_$i.rrd" ) { |
| 132 |
push @data, "LINE2:$baserrd\_$i:size:size$i" . &get_colour($i) . ":queue$i size "; |
| 133 |
++$i; |
| 134 |
} |
| 135 |
push @data, "LINE2:$baserrd\_0:total:total#FF0000:packets/sec - currently"; |
| 136 |
push @rawdata, "GPRINT:total:LAST:%lf %spackets/sec"; |
| 137 |
my($comment); |
| 138 |
if(-f "$rrddir/$machine/$baserrd.def") { |
| 139 |
open(DEF, "$rrddir/$machine/$baserrd.def"); |
| 140 |
$comment = <DEF>; |
| 141 |
chomp $comment if defined $comment; |
| 142 |
} |
| 143 |
$comment = "unknown queue" if not defined $comment; |
| 144 |
&makegraph($machine, $baserrd, $comment, \@data, \@rawdata); |
| 145 |
} |
| 146 |
} |
| 147 |
} |
| 148 |
|
| 149 |
# |
| 150 |
# subroutine to make some graphs |
| 151 |
# |
| 152 |
# $machine = name of the machine |
| 153 |
# (eg. kernow.ukc.ac.uk) |
| 154 |
# $type = the type of graph for the machine |
| 155 |
# (eg. cpu) |
| 156 |
# $title = the title for the graph |
| 157 |
# (eg. kernow CPU usage) |
| 158 |
# $dataref = a reference to an array containing information for the graph |
| 159 |
# elements of format: "gtype:rrdname:dsname:name#colour:comment with spaces" |
| 160 |
# (if gtype is "NONE" only a DEF of 'name' will be defined, no line will be plotted) |
| 161 |
# $rawcmdref = a reference to an array containing raw rrd commands |
| 162 |
# elements a single command each, no spaces |
| 163 |
# |
| 164 |
|
| 165 |
sub makegraph() { |
| 166 |
my($machine, $type, $title, $dataref, $rawcmdref) = @_; |
| 167 |
# pass in these arrays by reference |
| 168 |
my(@data) = @$dataref if defined $dataref; |
| 169 |
my(@rawcmd) = @$rawcmdref if defined $rawcmdref; |
| 170 |
# check if directory exists for images |
| 171 |
if(! -d "$imgdir/$machine") { |
| 172 |
# not sure on this umask, but it seems to work? |
| 173 |
mkdir "$imgdir/$machine", 0777; |
| 174 |
} |
| 175 |
my(@rrdcmd); |
| 176 |
foreach my $dataitem (@data) { |
| 177 |
# dataitem should be: "gtype:rrdname:dsname:name#colour:comment with spaces" |
| 178 |
# (if gtype is "NONE" only a DEF of 'name' will be defined, no line will be plotted) |
| 179 |
if($dataitem =~ /^(\S+):(\S+):(\S+):(\S+)#(.{6}):(.*)$/) { |
| 180 |
push @rrdcmd, "DEF:$4=$rrddir/$machine/$2.rrd:$3:AVERAGE"; |
| 181 |
if($1 ne "NONE") { |
| 182 |
push @rrdcmd, "$1:$4#$5:$6"; |
| 183 |
} |
| 184 |
} |
| 185 |
} |
| 186 |
push @rrdcmd, "--title=$title"; |
| 187 |
push @rrdcmd, "--imgformat=PNG"; |
| 188 |
push @rrdcmd, "--lower-limit=0"; |
| 189 |
# not entirely convinced this is good... |
| 190 |
push @rrdcmd, "--alt-autoscale-max"; |
| 191 |
# add any further raw commands |
| 192 |
push @rrdcmd, @rawcmd; |
| 193 |
RRDs::graph ("$imgdir/$machine/$type-3h.png", "--start=-10800", @rrdcmd); |
| 194 |
my($err_3h) = RRDs::error; |
| 195 |
print STDERR "Error generating 3h graph for $machine/$type: $err_3h\n" if $err_3h; |
| 196 |
RRDs::graph ("$imgdir/$machine/$type-1d.png", "--start=-86400", @rrdcmd); |
| 197 |
my($err_1d) = RRDs::error; |
| 198 |
print STDERR "Error generating 1d graph for $machine/$type: $err_1d\n" if $err_1d; |
| 199 |
RRDs::graph ("$imgdir/$machine/$type-1w.png", "--start=-604800", @rrdcmd); |
| 200 |
my($err_1w) = RRDs::error; |
| 201 |
print STDERR "Error generating 1w graph for $machine/$type: $err_1w\n" if $err_1w; |
| 202 |
RRDs::graph ("$imgdir/$machine/$type-1m.png", "--start=-2678400", @rrdcmd); |
| 203 |
my($err_1m) = RRDs::error; |
| 204 |
print STDERR "Error generating 1m graph for $machine/$type: $err_1m\n" if $err_1m; |
| 205 |
RRDs::graph ("$imgdir/$machine/$type-1y.png", "--start=-31536000", @rrdcmd); |
| 206 |
my($err_1y) = RRDs::error; |
| 207 |
print STDERR "Error generating 1y graph for $machine/$type: $err_1y\n" if $err_1y; |
| 208 |
return; |
| 209 |
} |
| 210 |
|
| 211 |
# hacky subroutine to return a colour |
| 212 |
# could be done much better somehow :/ |
| 213 |
sub get_colour { |
| 214 |
my($col) = @_; |
| 215 |
if($col == 0) { |
| 216 |
return "#0000FF"; |
| 217 |
} |
| 218 |
elsif($col == 1) { |
| 219 |
return "#00FF00"; |
| 220 |
} |
| 221 |
elsif($col == 2) { |
| 222 |
return "#FF00FF"; |
| 223 |
} |
| 224 |
elsif($col == 3) { |
| 225 |
return "#FFFF00"; |
| 226 |
} |
| 227 |
elsif($col == 4) { |
| 228 |
return "#00FFFF"; |
| 229 |
} |
| 230 |
else { |
| 231 |
return "#000066"; |
| 232 |
} |
| 233 |
} |
