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# |
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# i-scream central monitoring system |
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– |
# http://www.i-scream.org.uk |
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# Copyright (C) 2000-2002 i-scream |
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# |
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# This program is free software; you can redistribute it and/or |
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$verbose = 0; |
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} |
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– |
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# Read the contents of the base directory |
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# and pull out the list of subdirectories (except . and .. :) |
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opendir(DIR, $rrddir); |
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if($rrd =~ /^(cpu)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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< |
push @data, "LINE2:$1:idle:idle#00FF00:idle cpu"; |
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< |
push @data, "LINE2:$1:user:user#0000FF:user cpu"; |
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< |
push @data, "LINE2:$1:kernel:kernel#00FFFF:kernel cpu"; |
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< |
push @data, "LINE2:$1:swap:swap#FF00FF:swap cpu"; |
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< |
push @data, "LINE2:$1:iowait:iowait#FF0000:iowait cpu"; |
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> |
push @data, "LINE2:$1:idle:idle#00FF00:OK:idle cpu "; |
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> |
push @data, "LINE2:$1:user:user#0000FF:OK:user cpu "; |
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> |
push @data, "LINE2:$1:kernel:kernel#00FFFF:OK:kernel cpu"; |
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> |
push @data, "LINE2:$1:swap:swap#FF00FF:OK:swap cpu "; |
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> |
push @data, "LINE2:$1:iowait:iowait#FF0000:OK:iowait cpu"; |
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push @rawdata, "--upper-limit=100"; |
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< |
&makegraph($machine, $1, "CPU Usage for $machine", \@data, \@rawdata); |
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> |
&makegraph($machine, $1, "CPU Usage for $machine", "% cpu time", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(mem)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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# we don't actually want to display free memory, |
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# although we need it to do inuse... |
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< |
push @data, "NONE:$1:free:free#CCCCFF:free memory"; |
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< |
push @data, "LINE2:$1:total:total#0000FF:total memory"; |
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> |
push @data, "NONE:$1:free:free#CCCCFF:NONE:free memory"; |
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> |
push @data, "LINE2:$1:total:total#0000FF:NONE:total memory\\n"; |
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# calculate inuse |
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push @rawdata, "CDEF:inuse=total,free,-"; |
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# and add it to the graph |
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push @rawdata, "AREA:inuse#CCCCFF:memory in use"; |
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push @rawdata, "--base=1024"; |
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< |
&makegraph($machine, $1, "Memory Usage for $machine", \@data, \@rawdata); |
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# add some nice values to the legend |
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&addlegend(\@rawdata, "inuse"); |
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&makegraph($machine, $1, "Memory Usage for $machine", "megabytes", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(load)\.rrd$/) { |
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my(@data); |
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push @data, "LINE2:$1:load1:load1#CCCCFF:1 minute load average"; |
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< |
push @data, "LINE2:$1:load5:load5#7777FF:5 minute load average"; |
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push @data, "LINE2:$1:load15:load15#0000FF:15 minute load average"; |
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&makegraph($machine, $1, "Loads for $machine", \@data); |
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push @data, "LINE2:$1:load1:load1#CCCCFF:OK: 1 min load average"; |
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> |
push @data, "LINE2:$1:load5:load5#7777FF:OK: 5 min load average"; |
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> |
push @data, "LINE2:$1:load15:load15#0000FF:OK:15 min load average"; |
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&makegraph($machine, $1, "Loads for $machine", "load average", \@data); |
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} |
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if($rrd =~ /^(proc)\.rrd$/) { |
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my(@data); |
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< |
push @data, "LINE2:$1:cpu:cpu#00FF00:cpu processes"; |
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< |
push @data, "LINE2:$1:sleeping:sleeping#0000FF:sleeping processes"; |
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push @data, "LINE2:$1:stopped:stopped#00FFFF:stopped processes"; |
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push @data, "LINE2:$1:total:total#FF00FF:total processes"; |
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push @data, "LINE2:$1:zombie:zombie#FF0000:zombie processes"; |
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&makegraph($machine, $1, "Processes on $machine", \@data); |
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push @data, "LINE2:$1:cpu:cpu#00FF00:OK:cpu processes "; |
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push @data, "LINE2:$1:sleeping:sleeping#0000FF:OK:sleeping processes"; |
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push @data, "LINE2:$1:stopped:stopped#00FFFF:OK:stopped processes "; |
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push @data, "LINE2:$1:total:total#FF00FF:OK:total processes "; |
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push @data, "LINE2:$1:zombie:zombie#FF0000:OK:zombie processes "; |
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&makegraph($machine, $1, "Processes on $machine", "no. of processes", \@data); |
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} |
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if($rrd =~ /^(swap)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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# we don't actually want to display free swap, |
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# although we need it to do inuse... |
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push @data, "NONE:$1:free:free#CCCCFF:free swap"; |
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push @data, "LINE2:$1:total:total#0000FF:total swap"; |
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push @data, "NONE:$1:free:free#CCCCFF:NONE:free swap"; |
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push @data, "LINE2:$1:total:total#0000FF:NONE:total swap\\n"; |
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# calculate inuse |
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push @rawdata, "CDEF:inuse=total,free,-"; |
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# and add it to the graph |
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push @rawdata, "AREA:inuse#CCCCFF:swap in use"; |
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push @rawdata, "--base=1024"; |
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&makegraph($machine, $1, "Swap Usage for $machine", \@data, \@rawdata); |
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# add some nice values to the legend |
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&addlegend(\@rawdata, "inuse"); |
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&makegraph($machine, $1, "Swap Usage for $machine", "megabytes", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(users)\.rrd$/) { |
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my(@data); |
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push @data, "AREA:$1:count:count#CCCCFF:user count"; |
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&makegraph($machine, $1, "User Count for $machine", \@data); |
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push @data, "AREA:$1:count:count#CCCCFF:OK:user count"; |
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&makegraph($machine, $1, "User Count for $machine", "no. of users", \@data); |
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} |
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if($rrd =~ /^(disk)-(\S+).rrd$/) { |
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my(@data); |
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my(@rawdata); |
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< |
push @data, "LINE2:$1-$2:kbytes:kbytes#0000FF:total size"; |
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< |
push @data, "AREA:$1-$2:used:used#CCCCFF:used"; |
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push @data, "LINE2:$1-$2:kbytes:kbytes#0000FF:NONE:total size\\n"; |
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push @data, "AREA:$1-$2:used:used#CCCCFF:OK:used space"; |
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push @rawdata, "--base=1024"; |
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my($type) = $1; |
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my($name) = $2; |
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my($nicename) = $2; |
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$nicename =~ s/$hex_slash/\//g; |
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$nicename =~ s/$hex_underscore/_/g; |
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&makegraph($machine, "$type-$name", "Disk Usage for $machine on $nicename", \@data, \@rawdata); |
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&makegraph($machine, "$type-$name", "Disk Usage for $machine on $nicename", "kilobytes", \@data, \@rawdata); |
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} |
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# probably a queue with a name like this :) |
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if($rrd =~ /^(\d+)_0\.rrd$/) { |
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my($baserrd) = $1; |
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my($i) = 0; |
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while( -f "$rrddir/$machine/$baserrd\_$i.rrd" ) { |
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< |
push @data, "LINE2:$baserrd\_$i:size:size$i" . &get_colour($i) . ":queue$i size "; |
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> |
push @data, "LINE2:$baserrd\_$i:size:size$i" . &get_colour($i) . ":OK:queue$i size "; |
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++$i; |
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} |
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< |
push @data, "LINE2:$baserrd\_0:total:total#FF0000:packets/sec - currently"; |
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< |
push @rawdata, "GPRINT:total:LAST:%lf %spackets/sec"; |
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> |
push @data, "LINE2:$baserrd\_0:total:total#FF0000:OK:packets/sec "; |
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my($comment); |
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if(-f "$rrddir/$machine/$baserrd.def") { |
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open(DEF, "$rrddir/$machine/$baserrd.def"); |
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chomp $comment if defined $comment; |
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} |
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$comment = "unknown queue" if not defined $comment; |
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&makegraph($machine, $baserrd, $comment, \@data, \@rawdata); |
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&makegraph($machine, $baserrd, $comment, "", \@data, \@rawdata); |
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} |
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} |
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# have a last check, maybe we can remove the directory now? |
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# (eg. cpu) |
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# $title = the title for the graph |
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# (eg. kernow CPU usage) |
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# $vlabel = the vertical label to apply to the left side of the graph |
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# (eg. kb/s) |
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# $dataref = a reference to an array containing information for the graph |
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# elements of format: "gtype:rrdname:dsname:name#colour:comment with spaces" |
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# elements of format: "gtype:rrdname:dsname:name#colour:legend:comment with spaces" |
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# (if gtype is "NONE" only a DEF of 'name' will be defined, no line will be plotted) |
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# (if legend is "NONE" the latest/average/max/min legend won't be printed) |
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# $rawcmdref = a reference to an array containing raw rrd commands |
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# elements a single command each, no spaces |
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# |
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sub makegraph() { |
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my($machine, $type, $title, $dataref, $rawcmdref) = @_; |
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> |
my($machine, $type, $title, $vlabel, $dataref, $rawcmdref) = @_; |
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# pass in these arrays by reference |
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my(@data) = @$dataref if defined $dataref; |
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my(@rawcmd) = @$rawcmdref if defined $rawcmdref; |
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} |
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my(@rrdcmd); |
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foreach my $dataitem (@data) { |
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# dataitem should be: "gtype:rrdname:dsname:name#colour:comment with spaces" |
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> |
# dataitem should be: "gtype:rrdname:dsname:name#colour:legend:comment with spaces" |
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# (if gtype is "NONE" only a DEF of 'name' will be defined, no line will be plotted) |
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if($dataitem =~ /^(\S+):(\S+):(\S+):(\S+)#(.{6}):(.*)$/) { |
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> |
# (if legend is "NONE" the latest/average/max/min legend won't be printed) |
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> |
if($dataitem =~ /^(\S+):(\S+):(\S+):(\S+)#(.{6}):(\S+):(.*)$/) { |
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push @rrdcmd, "DEF:$4=$rrddir/$machine/$2.rrd:$3:AVERAGE"; |
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if($1 ne "NONE") { |
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< |
push @rrdcmd, "$1:$4#$5:$6"; |
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> |
push @rrdcmd, "$1:$4#$5:$7"; |
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> |
if($6 ne "NONE") { |
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> |
# add some nice values to the legend |
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> |
&addlegend(\@rrdcmd, $4); |
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> |
} |
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} |
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} |
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} |
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push @rrdcmd, "--title=$title"; |
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push @rrdcmd, "--imgformat=PNG"; |
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push @rrdcmd, "--lower-limit=0"; |
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push @rrdcmd, "--vertical-label=$vlabel"; |
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# not entirely convinced this is good... |
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push @rrdcmd, "--alt-autoscale-max"; |
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# add any further raw commands |
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&log("created $imgdir/$machine/$type-1y.png\n") unless $err_1y; |
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&error("Error generating 1y graph for $machine/$type: $err_1y\n") if $err_1y; |
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return; |
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+ |
} |
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+ |
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# subroutine to add a legend |
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# accepts reference to an array and a name |
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sub addlegend() { |
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my($dataref, $name) = @_; |
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push @$dataref, "GPRINT:$name:LAST:Current\\: \%8.2lf %s"; |
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push @$dataref, "GPRINT:$name:AVERAGE:Average\\: \%8.2lf %s"; |
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push @$dataref, "GPRINT:$name:MAX:Max\\: \%8.2lf %s\\n"; |
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#push @$dataref, "GPRINT:$name:MIN:Min\\: \%8.2lf %s\\n"; |
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} |
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# hacky subroutine to return a colour |
