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# |
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# i-scream central monitoring system |
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# http://www.i-scream.org |
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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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# ----------------------------------------------------------- |
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# i-scream graph generation script |
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# http://www.i-scream.org.uk |
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# http://www.i-scream.org |
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# |
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# Generates graphs from rrd databases for i-scream data. |
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# |
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# define variables that will be read from the config |
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# nb. keep this insync with the config file! |
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use vars qw{ |
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< |
$imgdir $rrddir |
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use vars qw{ |
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$imgdir $rrddir |
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$maxrrdage $maximgage $deleterrds $deleteimgs |
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$hex_slash $hex_underscore |
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$hex_slash $hex_underscore $hex_space $hex_colon $hex_bslash $hex_rbracket |
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$hex_lbracket $hex_plus |
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$rrdstep $retry_wait |
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$verbose $quiet |
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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, $rrddir); |
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my(@rrddirlist) = grep { -d "$rrddir/$_" && !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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my(@rrddirlist) = sort grep { -d "$rrddir/$_" && !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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closedir DIR; |
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# look through each directoty, as they might |
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# look through each directory, as they might |
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# contain rrds for a particular machine |
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foreach my $machine (@rrddirlist) { |
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# Read the contents of the directory |
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if($rrd =~ /^(cpu)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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push @data, "AREA:$1:swap:swap#FF00FF:OK:swap cpu "; |
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push @data, "STACK:$1:iowait:iowait#FF0000:OK:iowait cpu"; |
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push @data, "STACK:$1:kernel:kernel#00FFFF:OK:kernel cpu"; |
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push @data, "STACK:$1:user:user#0000FF:OK:user 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 $machine", "% cpu time", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(uptime)\.rrd$/) { |
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my(@data); |
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push @data, "LINE2:$1:uptime:uptime#0000FF:OK:uptime"; |
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&makegraph($machine, $1, "Uptime for $machine", "uptime in seconds", \@data); |
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} |
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if($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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# we don't actually want to display free or total memory, |
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# although we need it to work out peruse... |
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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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push @data, "NONE:$1:total:total#0000FF:NONE:total memory\\n"; |
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push @data, "NONE:$1:cache:cache#0000FF:NONE:cache memory\\n"; |
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# calculate peruse - note that we only use 'free' if it's |
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# less or equal to total (this is to avoid negative percentages :) |
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push @rawdata, "CDEF:peruse=total,free,total,LE,free,0,IF,-,total,/,100,*"; |
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push @rawdata, "CDEF:percacuse=cache,total,LE,cache,0,IF,total,/,100,*"; |
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# and add it to the graph |
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push @rawdata, "AREA:inuse#CCCCFF:memory in use"; |
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push @rawdata, "AREA:peruse#CCCCFF:% memory in use"; |
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&addlegend(\@rawdata, "peruse"); |
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push @rawdata, "LINE2:percacuse#0000FF:% memory cache "; |
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&addlegend(\@rawdata, "percacuse"); |
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push @rawdata, "--upper-limit=100"; |
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push @rawdata, "--base=1024"; |
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# add some nice values to the legend |
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&addlegend(\@rawdata, "inuse"); |
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&makegraph($machine, $1, "Memory Usage for $machine", "megabytes", \@data, \@rawdata); |
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# put the total memory on the graph so we can map percentages to real values |
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push @rawdata, "GPRINT:total:LAST:Current total memory\\: \%.2lf %sb\\c"; |
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&makegraph($machine, $1, "Memory Usage for $machine", "% memory in use", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(load)\.rrd$/) { |
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my(@data); |
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} |
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if($rrd =~ /^(proc)\.rrd$/) { |
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my(@data); |
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push @data, "LINE2:$1:cpu:cpu#00FF00: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, "AREA:$1:stopped:stopped#00FFFF:OK:stopped processes "; |
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push @data, "STACK:$1:zombie:zombie#FF0000:OK:zombie processes "; |
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push @data, "STACK:$1:cpu:cpu#00FF00:OK:cpu processes "; |
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push @data, "STACK:$1:sleeping:sleeping#0000FF:OK:sleeping 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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# we don't actually want to display free or total swap, |
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# although we need it to work out peruse... |
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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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push @data, "NONE:$1:total:total#0000FF:NONE:total swap\\n"; |
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# calculate peruse - note that we only use 'free' if it's |
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# less or equal to total (this is to avoid negative percentages :) |
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push @rawdata, "CDEF:peruse=total,free,total,LE,free,0,IF,-,total,/,100,*"; |
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# and add it to the graph |
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push @rawdata, "AREA:inuse#CCCCFF:swap in use"; |
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push @rawdata, "AREA:peruse#CCCCFF:% swap in use"; |
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push @rawdata, "--upper-limit=100"; |
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push @rawdata, "--base=1024"; |
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# add some nice values to the legend |
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&addlegend(\@rawdata, "inuse"); |
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&makegraph($machine, $1, "Swap Usage for $machine", "megabytes", \@data, \@rawdata); |
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&addlegend(\@rawdata, "peruse"); |
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# put the total swap on the graph so we can map percentages to real values |
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push @rawdata, "GPRINT:total:LAST:Current total swap\\: \%.2lf %sb\\c"; |
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&makegraph($machine, $1, "Swap Usage for $machine", "% swap in use", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(users)\.rrd$/) { |
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my(@data); |
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push @data, "AREA:$1:count:count#CCCCFF:OK:user count"; |
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&makegraph($machine, $1, "User Count for $machine", "no. of users", \@data); |
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} |
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if($rrd =~ /^(disk)-(\S+).rrd$/) { |
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if($rrd =~ /^(paging)\.rrd$/) { |
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my(@data); |
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push @data, "AREA:$1:pageins:pageins#00FF00:OK:pages paged in "; |
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push @data, "LINE2:$1:pageouts:pageouts#0000FF:OK:pages paged out"; |
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&makegraph($machine, $1, "Paging on $machine", "pages per second", \@data); |
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} |
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if($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:NONE:total size\\n"; |
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push @data, "AREA:$1-$2:used:used#CCCCFF:OK:used space"; |
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# we need this lot for our calculations, but we'll never show them |
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push @data, "NONE:$1-$2:total:total#0000FF:NONE:total size\\n"; |
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push @data, "NONE:$1-$2:used:used#CCCCFF:NONE:used space"; |
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push @data, "NONE:$1-$2:totalinodes:totalinodes#000000:NONE:total inodes"; |
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push @data, "NONE:$1-$2:freeinodes:freeinodes#000000:NONE:free inodes"; |
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# calculate peruse, add it to the graph, and add a legend |
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push @rawdata, "CDEF:peruse=used,total,/,100,*"; |
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push @rawdata, "AREA:peruse#CCCCFF:% disk used "; |
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&addlegend(\@rawdata, "peruse"); |
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# put the total space on the graph so we can map percentages to real values |
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push @rawdata, "GPRINT:total:LAST:Current total space\\: \%.2lf %sb\\c"; |
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# calculate perinodeuse, add it to the graph, and add a legend |
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push @rawdata, "CDEF:perinodeuse=totalinodes,freeinodes,totalinodes,LT,freeinodes,0,IF,-,totalinodes,/,100,*"; |
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push @rawdata, "LINE2:perinodeuse#FF4444:% inodes used"; |
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push @rawdata, "--upper-limit=100"; |
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push @rawdata, "--base=1024"; |
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&addlegend(\@rawdata, "perinodeuse"); |
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# put the total inodes on the graph so we can map percentages to real values |
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push @rawdata, "GPRINT:totalinodes:LAST:Current total inodes\\: \%.2lf %s\\c"; |
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# some name tidting |
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my($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 $nicename", "kilobytes", \@data, \@rawdata); |
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$nicename =~ s/$hex_bslash/\\/g; |
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$nicename =~ s/$hex_space/ /g; |
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$nicename =~ s/$hex_colon/:/g; |
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&makegraph($machine, "$type-$name", "Disk Usage for $machine on $nicename", "% usage", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(diskio)-(\S+)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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push @data, "AREA:$1-$2:rbytes:rbytes#00FF00:OK:read bytes "; |
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push @data, "LINE2:$1-$2:wbytes:wbytes#0000FF:OK:write bytes"; |
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push @rawdata, "--base=1024"; |
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# some name tidying |
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my($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/$hex_underscore/_/g; |
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$nicename =~ s/$hex_bslash/\\/g; |
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$nicename =~ s/$hex_space/ /g; |
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$nicename =~ s/$hex_colon/:/g; |
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&makegraph($machine, "$type-$name", "Disk IO for $machine on $nicename", "bytes per second", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(net)-(\S+)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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push @data, "AREA:$1-$2:rx:rx#00FF00:OK:received bytes "; |
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push @data, "LINE2:$1-$2:tx:tx#0000FF:OK:transfered bytes"; |
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push @rawdata, "--base=1024"; |
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# some name tidying |
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my($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/$hex_underscore/_/g; |
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$nicename =~ s/$hex_bslash/\\/g; |
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$nicename =~ s/$hex_space/ /g; |
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$nicename =~ s/$hex_colon/:/g; |
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$nicename =~ s/$hex_lbracket/(/g; |
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$nicename =~ s/$hex_rbracket/)/g; |
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$nicename =~ s/$hex_plus/+/g; |
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&makegraph($machine, "$type-$name", "Network IO for $machine on $nicename", "bytes per second", \@data, \@rawdata); |
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} |
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if($rrd =~ /^(mailq)-(\S+)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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push @data, "LINE2:$1-$2:size:size#0000FF:OK:messages"; |
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&makegraph($machine, "$1-$2", "Mail Queue ($2) Size for $machine", "messages in queue", \@data, \@rawdata); |
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} |
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# probably a queue with a name like this :) |
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if($rrd =~ /^(\d+)_0\.rrd$/) { |
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my(@data); |
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# Read the contents of the graphs directory |
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# and pull out the list of subdirectories (except . and .. :) |
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opendir(DIR, $imgdir); |
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< |
my(@imgdirlist) = grep { -d "$imgdir/$_" && !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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> |
my(@imgdirlist) = sort grep { -d "$imgdir/$_" && !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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closedir DIR; |
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< |
# look through each directoty, as they might |
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> |
# look through each directory, as they might |
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# contain images for a particular machine |
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foreach my $machine (@imgdirlist) { |
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# Read the contents of the directory |
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push @$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 |
