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#!/usr/bin/perl -w |
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# |
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# This script will create Default files for two vmstat veriants |
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# |
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# 2003-10-27 Dobrica Pavlinusic <dpavlin@rot13.org> |
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# |
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# Due to cricket's eagerness to execute first data sources, your data |
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# *WILL BE* delayed by 5 minutes (or one cricket interval) on your |
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# graphs. Reason is that cricket first tries to read file (from last |
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# run) and then executes vmstat which will produce new file. |
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|
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use strict; |
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use Data::Dumper; |
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|
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# define temp cache file -- this is (mybe) security risk! This file name |
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# is easily guessable and it's called via cat from cricket |
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my $cache = '/tmp/vmstat-\%auto-target-name\%'; |
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|
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|
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|
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my $target = qq( |
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Target --default-- |
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directory-desc = "Report virtual memory statistics" |
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short-desc = "Virtual memory" |
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|
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target-type = vmstat |
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|
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# by default don't use ssh |
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ssh="" |
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|
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# comment following line if you don't want alerts for filespace |
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# to be created in /var/log/cricket/alters |
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# change n to number for low mark and 90 to high mark |
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#monitor-thresholds = "df : value : n : 90 : FILE : /var/log/cricket/alerts" |
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); |
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|
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my $dataSource_fmt = qq( |
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dataSource %s |
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rrd-ds-type = %s |
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rrd-heartbeat = 1800 |
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ds-source = "%s:%s:%s" |
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# rrd-min = 0 |
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# rrd-max = undef |
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precision = integer |
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); # name, type=GAUGE|DERIVE, 0-x, script |
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|
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my $graph_fmt = qq( |
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graph %s |
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draw-as = %s |
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legend = "%s" |
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units = "%s" |
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); # name, AREA|LINE3, legend, y-axis, units |
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|
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|
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my $targetType_fmt = qq( |
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targetType %s |
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ds = "%s" |
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view = "%s" |
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# y-min = 0 |
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# y-max = 100 |
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|
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graph --default-- |
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height = 278 |
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height-hint = 278 |
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); # name, ds (separated by spaces), view (Name: ds ds[,..]) |
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|
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my $target_fmt = qq( |
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target %s |
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ssh = %s |
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); |
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|
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# definition for VM mode (copy/paster from vmstat man page :-) |
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|
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my $ds_type = { |
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'si' => 'ABSOLUTE', |
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'so' => 'ABSOLUTE', |
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'bi' => 'ABSOLUTE', |
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'bo' => 'ABSOLUTE', |
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}; |
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|
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my $definition = qq( |
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Procs |
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r: The number of processes waiting for run time. |
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b: The number of processes in uninterruptible sleep. |
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|
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Memory |
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swpd: the amount of virtual memory used. |
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free: the amount of idle memory. |
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buff: the amount of memory used as buffers. |
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cache: the amount of memory used as cache. |
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# inact: the amount of inactive memory. (-a option) |
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# active: the amount of active memory. (-a option) |
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|
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Swap |
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si: Amount of memory swapped in from disk (/s). |
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so: Amount of memory swapped to disk (/s). |
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|
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IO |
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bi: Blocks received from a block device (blocks/s). |
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bo: Blocks sent to a block device (blocks/s). |
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|
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System |
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in: The number of interrupts per second, including the clock. |
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cs: The number of context switches per second. |
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|
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CPU |
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us: Time spent running non-kernel code. (user time, including nice time) |
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sy: Time spent running kernel code. (system time) |
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id: Time spent idle. Prior to Linux 2.5.41, this includes IO-wait time. |
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wa: Time spent waiting for IO. Prior to Linux 2.5.41, shown as zero. |
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); |
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|
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my @ds; |
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my @views; |
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my $view_ds; |
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my $desc; |
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|
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# start parsing at which element |
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my $ds_max = 0; |
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my $curr_view = "Default"; |
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|
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foreach (split(/[\n\r]+/,$definition)) { |
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chomp; |
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next if (/^$/ || /^#/); |
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if (/^\s*(\w+)\s*$/) { |
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# view definition |
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$curr_view = $1; |
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push @views, $curr_view; |
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} elsif (/^\s+(\w+):\s+(.+)$/) { |
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# source name: description |
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my ($ds,$description) = ($1,$2); |
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$ds_max++; |
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push @ds,$ds; |
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push @{$view_ds->{$curr_view}},$ds; |
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$desc->{$ds} = $description; |
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} else { |
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print STDERR "unparsable line: $_\n"; |
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} |
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} |
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|
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# variant (-s for vmstat -s) |
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my $is_s = 0; |
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|
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my $ssh = shift @ARGV; |
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if ($ssh && $ssh eq "-s") { |
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$ssh = shift @ARGV; |
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$is_s = 1; |
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} |
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|
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# don't use value 0 it's empty! |
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my $vmstat = qq(\%ssh\% vmstat 1 2 | tail -1 | sed 's/ */\\\\n/'g | tee $cache); |
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my $ds_start = 1; |
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|
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#my $vmstats = qq(vmstat -s -S K); |
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|
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|
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# dump Target |
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print $target; |
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|
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|
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# dump targetType |
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my $view_str; |
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foreach (keys %{$view_ds}) { |
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$view_str .= "$_: ".join(" ",@{$view_ds->{$_}}).", "; |
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} |
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$view_str =~ s/, $//; |
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printf($targetType_fmt, 'vmstat', join(", ",@ds), $view_str); |
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|
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|
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# dump dataSource |
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my $i=$ds_start; # start ds on line |
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foreach my $ds (@ds) { |
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my $cmd = $vmstat; |
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my $scheme = "exec"; |
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|
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#if ($i == $ds_start) { |
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# # first ds dumps vmstat and cache in in tmp file |
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# $cmd = $vmstat; |
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#} elsif ($i == $ds_max) { |
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# # last row should also erase cache |
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# $cmd = "cat $cache && rm $cache"; |
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#} else { |
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# # while all other rows just dump cache file |
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# $scheme = "file"; |
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# $cmd = $cache; |
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# #$cmd = "cat $cache"; |
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#} |
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|
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printf($dataSource_fmt, $ds,$ds_type->{$ds} || 'GAUGE',$scheme,$i,$cmd); |
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|
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$i++; |
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} |
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|
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# dump graph(s) |
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foreach my $ds (@ds) { |
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printf($graph_fmt, $ds, 'LINE3', $desc->{$ds}, $ds); |
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} |
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