1 | #!/usr/bin/perl -w #-d
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2 | #
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3 | # sar/iostat graphing tool based on rrdtool
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4 | # (c) 2004 B. Cornec HP <bruno.cornec@hp.com>
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5 | # Licensed under the GPL or Artistic License
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6 | #
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7 | # Common functions
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8 | #
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9 | package sario2rrd;
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10 | use Exporter 'import';
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11 | @EXPORT_OK = qw(create_attr create_gauge update_gauge from_epoch);
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12 |
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13 | use strict;
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14 | use English; # for $UID
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15 | use RRDs; # for data management and graphing
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16 | use Data::Dumper; # for debug
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17 | use Date::Manip; # for timestamp
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18 |
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19 | #
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20 | # Compute the number of fields to create in rrdtool
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21 | # and the mini/maxi timestamp for the start/end (-s/-e option)
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22 | #
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23 | sub create_attr {
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24 |
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25 | my ($t,$attr,$m,$shot,$debug) = @_;
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26 |
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27 | #
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28 | # Initialisation
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29 | #
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30 | if (not (defined $attr->{$m}{mintmst})) {
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31 | $attr->{$m}{mintmst} = 99999999999999;
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32 | }
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33 | if (not (defined $attr->{$m}{maxtmst})) {
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34 | $attr->{$m}{maxtmst} = 0;
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35 | }
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36 | foreach my $ts (keys %{$t}) {
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37 | print "ts: $ts\n" if ($debug > 3);
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38 | #
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39 | # Compute the number of fields for the rrd base
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40 | # and a good timestamp corresponding to the presence
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41 | # of all the fields
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42 | #
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43 | my $nb = keys %{$t->{$ts}};
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44 | if ($nb > $attr->{$m}{nbfields}) {
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45 | $attr->{$m}{nbfields} = $nb;
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46 | $attr->{$m}{goodtmst} = $ts;
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47 | }
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48 | }
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49 | #
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50 | # List of all tags in rrd base
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51 | #
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52 | push @{$attr->{$m}{measures}},(sort keys %{$t->{$attr->{$m}{goodtmst}}});
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53 |
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54 | foreach my $ts (keys %{$t}) {
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55 | #
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56 | # Compute the first/last timestamp
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57 | #
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58 | if ($shot == 1) {
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59 | #
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60 | # Fill empty parts of the hash in case of need for
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61 | # fixed dates in extraction
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62 | #
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63 | foreach my $f (@{$attr->{$m}{measures}}) {
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64 | $t->{$ts}{$f} = 0 if (not (defined $t->{$ts}{$f}));
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65 | }
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66 | }
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67 | my $nb = keys %{$t->{$ts}};
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68 | if ($nb == $attr->{$m}{nbfields}) {
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69 | $attr->{$m}{mintmst} = $ts if ($ts < $attr->{$m}{mintmst});
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70 | $attr->{$m}{maxtmst} = $ts if ($ts > $attr->{$m}{maxtmst});
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71 | }
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72 | }
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73 | #
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74 | # Avoids boundaries problems during update
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75 | #
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76 | $attr->{$m}{mintmst}--;
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77 | $attr->{$m}{maxtmst}++;
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78 |
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79 |
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80 | print Dumper($attr) if ($debug > 1);
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81 | };
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82 |
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83 | #
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84 | # Create the GAUGE entries in the rrd base
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85 | #
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86 | sub create_gauge {
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87 |
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88 | my ($t,$attr,$step,$rrd,$uid,$gid,$m,$debug) = @_;
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89 |
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90 | my @rrdc = ();
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91 | foreach my $k (@{$attr->{$m}{measures}}) {
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92 | my $step4 = $step*4;
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93 | push @rrdc,"DS:$k:GAUGE:$step4:U:U";
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94 | }
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95 |
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96 | print "Creating rrd base $rrd for $m " if ($debug > 0);
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97 | print "rrdc:\n",Dumper(@rrdc) if ($debug > 2);
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98 | #my @rrdc2 = ("RRA:AVERAGE:0.5:1:4800","RRA:MAX:0.5:1:4800","RRA:MIN:0.5:1:4800");
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99 | my @rrdc2 = ("RRA:AVERAGE:0.5:1:4800","RRA:AVERAGE:0.5:6:4900","RRA:MAX:0.5:1:4800","RRA:MAX:0.5:6:4900","RRA:MIN:0.5:1:4800","RRA:MIN:0.5:6:700");
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100 | unlink $rrd;
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101 | RRDs::create ("$rrd","-b $attr->{$m}{mintmst}","-s $step",@rrdc,@rrdc2);
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102 | my $rrderror = RRDs::error;
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103 | die "Problem while updating rrd: $rrderror\n" if ($rrderror);
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104 | printf "(%d fields)\n",$attr->{$m}{nbfields} if ($debug > 0);
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105 | printf "[ ",$attr->{$m}{nbfields} if ($debug > 0);
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106 | foreach my $f (@{$attr->{$m}{measures}}) {
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107 | print "$f " if ($debug > 0);
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108 | }
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109 | printf " ]\n",$attr->{$m}{nbfields} if ($debug > 0);
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110 | chown $uid, $gid, "$rrd" || warn "Unable to chown $rrd to $uid" if ($UID == 0);
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111 | };
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112 |
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113 | #
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114 | # Update the GAUGE entries in the rrd base
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115 | #
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116 | sub update_gauge {
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117 |
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118 | my ($t,$attr,$rrd,$m,$debug) = @_;
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119 |
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120 | print "Updating rrd base for $m\n" if ($debug > 0);
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121 | foreach my $ts (sort keys %{$t}) {
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122 | my $rrdu = "";
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123 | $rrdu .= "$ts";
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124 | foreach my $k (sort keys %{$t->{$ts}}) {
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125 | $rrdu .= ":$t->{$ts}{$k}";
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126 | }
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127 | # Depends on localisation
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128 | $rrdu =~ s/,/./g;
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129 | my $cnt = () = $rrdu =~ /:/g;
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130 | if ($cnt != $attr->{$m}{nbfields}) {
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131 | printf "Skiping update %s ... (%d fields)\n",substr($rrdu,0,15),$cnt if ($debug > 1);
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132 | } else {
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133 | printf "Updating with %s ... (%d fields)\n",substr($rrdu,0,15),$cnt if ($debug > 1);
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134 | printf "rrdu: $rrdu\n" if ($debug > 2);
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135 | RRDs::update("$rrd","$rrdu");
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136 | my $rrderror = RRDs::error;
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137 | die "Problem while updating rrd: $rrderror\n" if ($rrderror);
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138 | }
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139 | }
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140 | };
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141 |
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142 | #
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143 | # Print Date correctly from epoch sec
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144 | #
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145 | sub from_epoch {
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146 |
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147 | my ($t) = @_;
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148 |
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149 | return UnixDate(ParseDate("epoch $t"),"%Y-%m-%d %H:%M:%S");
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150 | };
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151 |
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152 | 1;
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