chiark / gitweb /
disk graphs
[rrd-graphs.git] / cgi
diff --git a/cgi b/cgi
index 85c2e5283537657217803c904f480f2a7974645c..e0e90b8d9de18ca00dab42af5e16aed0a769a9e2 100755 (executable)
--- a/cgi
+++ b/cgi
@@ -1,7 +1,9 @@
-#!/usr/bin/perl -w
+#!/usr/bin/speedy -w -- -t100 -M1
 
 use strict qw(vars);
-use CGI qw/:standard/;
+use CGI::SpeedyCGI qw/:standard -no_xhtml/;
+use CGI qw/:standard -no_xhtml/;
+use POSIX;
 
 sub fail ($) {
     print(header(-status=>500),
@@ -12,33 +14,47 @@ sub fail ($) {
     exit 0;
 }
 
+our (@sections, %section_groups, %group_elems, %graphs);
+
+#---------- initialisation code, run once - graphs setup ----------
+
+BEGIN {
+
 our $R= '/var/lib/collectd/rrd/chiark.greenend.org.uk';
+our $SELF= '/home/ijackson/things/rrd-graphs';
 
-my $self= url(-relative=>1);
+our @timeranges= (3600, map { $_*86400 } qw(1 7 28), 13*7+1, 366);
 
-our (@sections, %sections, %graphs);
+sub graph_of_group ($$$$$) {
+    my ($section, $group, $elem, $basis, $args) = @_;
+    $basis->{Args}= $args;
+    $basis->{Slower}= 0 unless exists $basis->{Slower};
+    $basis->{TimeRanges} ||= \@timeranges;
+    $graphs{$section,$group,$elem}= $basis;
+    if (!exists $group_elems{$section,$group}) {
+       # new group then
+       if (!exists $section_groups{$section}) {
+           # new section even
+           push @sections, $section;
+       }
+       push @{ $section_groups{$section} }, $group;
+    }
+    push @{ $group_elems{$section,$group} }, $elem;
+}
 
 sub graph ($$$$) {
     my ($section, $gname, $basis, $args) = @_;
-    $basis->{Args}= $args;
-    $basis->{DefTimeRange} ||= 3600;
-    $basis->{MinTimeRange} ||= 3600;
-    $basis->{MaxTimeRange} ||= 28*86400;
-    $graphs{$section,$gname}= $basis;
-    if (!exists $sections{$section}) {
-       push @sections, $section;
-    }
-    push @{ $sections{$section} }, $gname;
+    graph_of_group($section, $gname,'', $basis, $args);
 }
 
-graph('General', 'Load', { },
+graph('General', 'Load and processes', { },
       [
        "DEF:load=$R/load/load.rrd:shortterm:AVERAGE",
        (map { "DEF:$_=$R/processes/ps_state-$_.rrd:value:AVERAGE" }
            qw(blocked running stopped paging sleeping zombies)),
-       "AREA:running#88f:running processes:STACK",
-       "AREA:blocked#8f8:blocked processes:STACK",
-       "AREA:paging#f88:paging processes:STACK",
+       "AREA:running#88f:running:STACK",
+       "AREA:blocked#8f8:disk wait:STACK",
+       "AREA:paging#f88:paging:STACK",
        "LINE:load#000:load",
        ]);
 
@@ -48,9 +64,9 @@ graph('General', 'Processes', { },
            qw(blocked running stopped paging sleeping zombies)),
        "CDEF:busy=0".(join '', map { ",$_,+" } qw(running blocked paging)),
        "AREA:sleeping#ccc:sleeping:STACK",
-       "AREA:stopped#f00:stopped:STACK",
-       "AREA:zombies#0f0:zombie:STACK",
-       "AREA:busy#f00:busy:STACK",
+       "AREA:stopped#00f:stopped:STACK",
+       "AREA:zombies#ff0:zombie:STACK",
+       "AREA:busy#000:busy:STACK",
        ]);
 
 graph('General', 'CPU', { Units => '[%]' },
@@ -61,26 +77,66 @@ graph('General', 'CPU', { Units => '[%]' },
                (0..7)),
           "CDEF:$thing=0".join('', map { ",$thing$_,+" } (0..7)).",8.0,/";
        } qw(idle interrupt nice softirq steal system user wait)),
-       "AREA:system#00f:system:STACK",
-       "AREA:wait#f88:wait:STACK",
+       "CDEF:allintr=softirq,steal,+,interrupt,+",
+       "AREA:allintr#ff0:interrupt:STACK",
+       "AREA:system#88f:system:STACK",
+       "AREA:user#00f:user:STACK",
        "AREA:nice#ccc:nice:STACK",
-       "AREA:user#080:user:STACK",
-       "AREA:softirq#f0f:softirq:STACK",
-       "AREA:interrupt#ff0:interrupt:STACK",
-       "AREA:steal#0ff:steal:STACK",
+       "AREA:wait#f00:wait:STACK",
+       ]);
+
+graph('General', 'Memory', { },
+      [ '-b',1024,
+       (map { "DEF:swap_$_=$R/swap/swap-$_.rrd:value:AVERAGE" }
+           qw(free used cached)),
+       (map { "DEF:mem_$_=$R/memory/memory-$_.rrd:value:AVERAGE" }
+           qw(buffered free used cached)),
+       "CDEF:c_swap_used=0,swap_used,-",
+       "CDEF:c_swap_cached=0,swap_cached,-",
+       "CDEF:c_swap_free=0,swap_free,-",
+       "AREA:c_swap_used#000:used swap",
+       "AREA:c_swap_cached#888:\"cached\" swap:STACK",
+#       "AREA:c_swap_free#88f:free swap:STACK",
+       "AREA:mem_used#ff0:used memory",
+       "AREA:mem_buffered#00f:page cache:STACK",
+       "AREA:mem_cached#008:buffer cache:STACK",
+       "AREA:mem_free#ccc:unused memory:STACK",
+       ]);
+
+graph('General', 'Network', { Units => '[/sec; tx +ve; errs x1000]' },
+      [
+       (map {
+          ("DEF:tx_$_=$R/interface/if_$_-eth0.rrd:tx:AVERAGE",
+           "DEF:rx_$_=$R/interface/if_$_-eth0.rrd:rx:AVERAGE",
+           "CDEF:mrx_$_=0,rx_$_,-")
+          } qw(octets packets errors)),
+       (map {
+          ("CDEF:${_}_kb=${_}_octets,1024,/",
+           "CDEF:${_}_errsx=${_}_errors,1000,*")
+          } qw(mrx tx)),
+       "AREA:tx_kb#080:kby",
+       "LINE:tx_packets#0f0:pkts",
+       "LINE:tx_errsx#000:errs",
+       "AREA:mrx_kb#008:kby",
+       "LINE:mrx_packets#00f:pkts",
+       "LINE:mrx_errsx#444:errs",
+      ]);
+
+graph('General', 'Users', {  },
+      [
+       "DEF:users=$R/users/users.rrd:users:AVERAGE",
+       "LINE:users#008:users"
        ]);
 
 foreach my $src (<$R/df/df-*.rrd>) {
     my $vol= $src;
+    $vol =~ s,\.rrd$,, or next;
     $vol =~ s,.*/,,;
     $vol =~ s,^df-,,;
-    $vol =~ s,\.rrd$,,;
     graph('Disk space', $vol, {
-            MinTimeRange => 86400,
-            MaxTimeRange => (13*7+1)*86400,
-            DefTimeRange => 7*86400
+            Slower => 1,
           },
-         [
+         [ '-A','-l',0,'-r',
           qw(-b 1024 -l 0),
           (map { "DEF:$_=$src:$_:AVERAGE" } qw(free used)),
           "AREA:used#000:used:STACK",
@@ -88,82 +144,373 @@ foreach my $src (<$R/df/df-*.rrd>) {
           ]);
 }
 
+our %news_name_map;
+
+if (!open NM, '<', "$SELF/data/news/name-map") {
+    die unless $!==&ENOENT;
+} else {
+    while (<NM>) {
+       s/^\s*//; s/\s+$//;
+       next unless m/^[^\#]/;
+       m/^(\S+)\s+(in|out|\*)\s+(\S+)$/ or die;
+       if ($2 eq '*') {
+           $news_name_map{$1,$_}= $3 foreach qw(in out);
+       } else {
+           $news_name_map{$1,$2}= $3;
+       }
+    }
+}
+
+our @news_graphs;
+
+foreach my $src (<$SELF/data/news/*.rrd>) {
+    my $site= $src;
+    $site =~ s,\.rrd$,, or next;
+    $site =~ s,.*/,,;
+    $site =~ s,_(in|out)$,,;
+    my $inout= $1;
+    $site =~ s/^([-.0-9a-z]+)_//;
+    my $us= $1; # all very well but we ignore it
+    my $newsite= $news_name_map{$site,$inout};
+    $site= $newsite if defined $newsite;
+    next if $site eq '-';
+    #my $sk= join '.', reverse split /\./, $site;
+    my $sk= $site;
+    $sk .= " $&" if $sk =~ s/^[^.]*(?:news|nntp|peer)[^.]*\.//;
+    $sk .= " $inout";
+    push @news_graphs, [ $sk, $site, $inout, $src ];
+}
+
+foreach my $siteinfo (sort { $a->[0] cmp $b->[0] } @news_graphs) {
+    my ($sortkey, $site, $inout, $src)= @$siteinfo;
+    graph_of_group("News", $site, $inout,
+         {
+               Units => '[art/s]',
+               TimeRanges => [ map { $_*86400 } qw(1 7 31), 366, 366*3 ]
+           }, $inout eq 'out' ?
+         [
+          (map { "DEF:$_=$src:$_:AVERAGE" }
+               qw(missing deferred unwanted accepted rejected body_missing)),
+          "AREA:accepted#00f:ok",
+          "AREA:body_missing#ff0:miss:STACK",
+          "AREA:rejected#f00:rej:STACK",
+          "AREA:unwanted#aaa:unw:STACK",
+          "AREA:deferred#ddd:defer:STACK",
+          ] :
+         [
+          (map { "DEF:$_=$src:$_:AVERAGE" }
+               qw(accepted refused rejected duplicate)),
+          (map { ("DEF:bytes_$_=$src:${_}_size:AVERAGE",
+                  "CDEF:kb_$_=bytes_$_,1024,/")
+             } qw(accepted duplicate)),
+          "AREA:accepted#00f:ok:STACK",
+          "AREA:rejected#f00:rej:STACK",
+          "AREA:duplicate#000:dupe:STACK",
+          "AREA:refused#aaa:unw:STACK",
+          "CDEF:kb_accepted_smooth=kb_accepted,<interval/60>,TREND",
+          "LINE:kb_duplicate#ff0:kb dupe",
+          "LINE:kb_accepted_smooth#008:~kb",
+          ]);
+}
+
+our %disk_rdev2rrd;
+
+foreach my $physdiskrrd (<$R/disk-*/disk_octets.rrd>) {
+    $physdiskrrd =~ s,octets\.rrd$,, or die;
+    $physdiskrrd =~ m,-([^/]+)/disk_$, or die;
+    my $physdev= "/dev/$1";
+    if (!stat $physdev) {
+        die "$physdev $!" unless $!==&ENOENT;
+        next;
+    }
+    die "$physdev ?" unless S_ISBLK((stat _)[2]);
+    $disk_rdev2rrd{(stat _)[6]}= $physdiskrrd;
+}
+
+our @disk_vgs;
+
+sub lvgraphs {
+    my ($vg, $label, $factor, $rcolour, $wcolour) = @_;
+    my @lvs;
+    my $varname= $vg;
+    $varname =~ s/[^0-9a-zA-Y]/ sprintf "Z%02x", ord($&) /ge;
+    my $vginfo= {
+        Name => $label,
+        Varname => $varname,
+        Colour => { 'read' => $rcolour, 'write' => $wcolour },
+        Lvs => []
+    };
+    foreach my $bo (qw(octets ops)) {
+        foreach my $rw (qw(read write)) {
+            $vginfo->{VarDefs}{$bo}{$rw}= [];
+            $vginfo->{Sumdef}{$bo}{$rw}= '0';
+        }
+    }
+    my $ix=0;
+    foreach my $lvpath (</dev/$vg/*>) {
+        my $lv= $lvpath; $lv =~ s,.*/,,;
+        if (!stat $lvpath) {
+            die "$lvpath $!" unless $!==&ENOENT;
+            next;
+        }
+        die "$lvpath ?" unless S_ISBLK((stat _)[2]);
+        my $rrd= $disk_rdev2rrd{(stat _)[6]};
+        next unless defined $rrd;
+
+        my $lvinfo= { Name => $lv };
+        push @{ $vginfo->{Lvs} }, $lvinfo;
+
+        foreach my $bo (qw(octets ops)) {
+            $lvinfo->{Defs}{$bo}=
+              [
+               (map { ("DEF:$_=${rrd}${bo}.rrd:$_:AVERAGE") } qw(read write)),
+               "CDEF:mwrite=0,write,-",
+               "AREA:read#00f:read",
+               "AREA:mwrite#f00:write"
+               ];
+
+            foreach my $rw (qw(read write)) {
+                $ix++;
+                my $tvar= "lv_${rw}_${bo}_${varname}_${ix}";
+                push @{ $vginfo->{VarDefs}{$bo}{$rw} },
+                    "DEF:$tvar=${rrd}${bo}.rrd:$rw:AVERAGE";
+                $vginfo->{Sumdef}{$bo}{$rw} .= ",$tvar,+";
+            }
+        }
+    }
+    foreach my $bo (qw(octets ops)) {
+        foreach my $rw (qw(read write)) {
+            my $defs= [];
+            push @$defs, @{ $vginfo->{VarDefs}{$bo}{$rw} };
+            push @$defs, "CDEF:${rw}_vg_${varname}=".
+                $vginfo->{Sumdef}{$bo}{$rw}.
+                sprintf(",%f,*", $rw eq 'write' ? -$factor : $factor);
+            $vginfo->{Defs}{$bo}{$rw}= $defs;
+        }
+    }
+    push @disk_vgs, $vginfo;
+}
+
+lvgraphs('vg-main',          'main',     1, qw(00f f00));
+lvgraphs('vg-chiark-stripe', 'stripe', 0.5, qw(008 800));
+
+foreach my $bo (qw(octets ops)) {
+    my @a= ();
+    foreach my $rw (qw(read write)) {
+        my $stack= '';
+        foreach my $vginfo (@disk_vgs) {
+            push @a, @{ $vginfo->{Defs}{$bo}{$rw} };
+            push @a, "AREA:${rw}_vg_$vginfo->{Varname}#".
+                $vginfo->{Colour}{$rw}.
+                ":$vginfo->{Name} ".substr($rw,0,1).
+                $stack;
+            $stack= ':STACK';
+        }
+    }
+    graph_of_group('IO', 'IO', $bo, { Units => '[/s]' }, \@a);
+}
+
+foreach my $vginfo (@disk_vgs) {
+    foreach my $bo (qw(octets ops)) {
+        foreach my $lv (@{ $vginfo->{Lvs} }) {
+            graph_of_group('IO', "$vginfo->{Name} $lv->{Name}",
+                           $bo, { Units => '[/s]' }, $lv->{Defs}{$bo});
+        }
+    }
+}
+
+push @{ $section_groups{General} }, {
+    Section => 'IO',
+    Group => 'IO',
+    UrlParams => "section=IO&sloth=SLOTH"
+};
+
+}
+#---------- right, that was the initialisation ----------
+
+our $self= url(-relative=>1);
+
 if (param('debug')) {
     print "Content-Type: text/plain\n\n";
 }
 
-my $gname= param('graph');
-my $section= param('section');
-$section ||= $sections[0];
-die unless $sections{$section};
+our @navsettings;
+
+@navsettings= ();
+
+sub navsetting ($) {
+    my ($nav) = @_;
+    my $var= $nav->{Variable};
+    $$var= param($nav->{Param});
+    $$var= $nav->{Default} if !defined $$var;
+    die $nav->{Param} unless grep { $_ eq $$var } @{ $nav->{Values} };
+    push @navsettings, $nav;
+}
+
+our $section;
+
+navsetting({
+    Desc => 'Section',
+    Param => 'section',
+    Variable => \$section,
+    Default => $sections[0],
+    Values => [@sections],
+    Show => sub { return $_[0]; }
+});
+
+
+sub num_param ($$$$) {
+    my ($param,$def,$min,$max) = @_;
+    my $v= param($param);
+    return $def if !defined $v;
+    $v =~ m/^([1-9]\d{0,8})$/ or die;
+    $v= $1;
+    die unless $v >= $min && $v <= $max;
+    return $v + 0;
+}
+
+our $group= param('graph');
 
-if ($gname) {
-    my $g= $graphs{$section,$gname};
+our $elem= param('elem');
+if (defined $elem) {
+    my $g= $graphs{$section,$group,$elem};
     die unless $g;
 
+    my $width= num_param('w',370,100,1600);
+    my $height= num_param('h',200,100,1600);
+
+    my $sloth= param('sloth');
+    die unless defined $sloth;
+    $sloth =~ m/^(\d+)$/ or die;
+    $sloth= $1+0;
+    my $end= $g->{TimeRanges}[$sloth];
+    die unless defined $end;
+
+    my $cacheid= "$section!$group!$elem!$sloth!$width!$height";
+    my $cachepath= "cache/$cacheid.png";
+
     my @args= @{ $g->{Args} };
+    s,\<interval/(\d+)\>, $end/$1 ,ge foreach @args;
+    unshift @args, qw(--end now --start), "end-${end}s";
+    
+    my $title= $group;
+    if (length $elem) { $title.= " $elem"; }
+
+    $title .= " $g->{Units}" if $g->{Units};
+    unshift @args, '-t', $title, '-w',$width, '-h',$height;
+    unshift @args, qw(-a PNG --full-size-mode);
 
-    my $end= param('end');
-    if (defined $end) {
-        $end =~ m/^(\d+)$/ or die;
-        unshift @args, qw(--end now --start), "end-${end}s";
-    }
     if (param('debug')) {
         print((join "\n",@args),"\n"); exit 0;
     }
-    print "Content-Type: image/png\n\n";
 
-    my $title= $gname;
-    $title .= " $g->{Units}" if $g->{Units};
-    unshift @args, '-t', $title;
-    
-    exec qw(rrdtool graph - -a PNG --full-size-mode -w 370 -h 200), @args;
+#print STDERR "||| ",(join ' ', map { "'$_'" } @args)." |||\n";
+    exec(qw(sh -ec), <<'END', 'x', $cachepath, @args);
+        p="$1"; shift
+        rrdtool graph "$p" --lazy "$@" >/dev/null
+       printf "Content-Type: image/png\n\n"
+       exec cat "$p"
+END
     die $!;
 }
 
 sub start_page ($) {
     my ($title) = @_;
     print header(), start_html($title);
-    my $delim= '';
-    foreach my $s2 (@sections) {
-       print $delim;
-       if ($s2 eq $section) {
-           print "<b>$section</b>";
-       } else {
-           print "<a href=\"$self";
-           if ($s2 ne $sections[0]) { print "?section=$s2"; }
-           print "\">$s2</a>";
+    my $outerdelim= '';
+    foreach my $nav (@navsettings) {
+       print $outerdelim;
+       print $nav->{Desc}, ": ";
+       my $delim= '';
+       my $current= $nav->{Variable};  $current= $$current;
+       foreach my $couldbe (@{ $nav->{Values} }) {
+           print $delim;
+           my $show= $nav->{Show}($couldbe);
+           if ($couldbe eq $current) {
+               print "<b>$show</b>";
+           } else {
+               my $u= $self;
+               my $delim2= '?';
+               foreach my $nav2 (@navsettings) {
+                   my $current2= $nav2->{Variable};  $current2= $$current2;
+                   $current2= $couldbe if $nav2->{Param} eq $nav->{Param};
+                   next if $current2 eq $nav2->{Default};
+                   $u .= $delim2;  $u .= "$nav2->{Param}=$current2";
+                   $delim2= '&';
+               }
+               print a({href=>$u}, $show);
+           }
+           $delim= ' | ';
        }
-       $delim= ' | ';
+       $outerdelim= "<br>\n";
     }
+    print "\n";
+
     print h1("$title");
 }
 
-my $detail= param('detail');
-if ($detail) {
-    my $g= $graphs{$section,$detail};
-    die unless $g;
-    start_page("$detail graphs");
-    foreach my $end (qw(300 3600 86400 604800 2419200 7948800)) {
-       next if $end < $g->{MinTimeRange};
-       next if $end > $g->{MaxTimeRange};
-        print "<img src=\"$self?graph=$detail&section=$section&end=$end\">\n";
+our $detail= param('detail');
+if (defined $detail) {
+    my $elems= $group_elems{$section,$detail};
+    die unless $elems;
+    start_page("$detail - $section - graphs");
+    foreach my $tsloth (0..5) {
+       foreach my $elem (@$elems) {
+           my $g= $graphs{$section,$detail,$elem};
+           die unless $g;
+           next if $tsloth >= @{ $g->{TimeRanges} };
+           my $imgurl= "$self?graph=$detail&section=$section".
+               "&sloth=$tsloth&elem=$elem";
+           print a({href=>"$imgurl&w=780&h=800"},
+                   img({src=>$imgurl, alt=>''}));
+       }
     }
     print end_html();
     exit 0;
 }
 
+our $sloth;
+
+navsetting({
+    Desc => 'Time interval',
+    Param => 'sloth',
+    Variable => \$sloth,
+    Default => 1,
+    Values => [0..3],
+    Show => sub {
+       my ($sl) = @_;
+       return ('Narrower', 'Normal', 'Wider', 'Extra wide')[$sl];
+    }
+});
+
 if (param('debug')) {
     use Data::Dumper;
     print Dumper(\%graphs);
     exit 0;
 }
 
-start_page("$section graphs");
+start_page("$section graphs");
 
-foreach my $gname (@{ $sections{$section} }) {
-    my $g= $graphs{$section,$gname};
-    print "<a href=\"$self?detail=$gname&section=$section\">"; #,h2($gname),"</a>";
-    print "<img src=\"$self?graph=$gname&section=$section&end=$g->{DefTimeRange}\"></a>\n";
+foreach my $group (@{ $section_groups{$section} }) {
+    my $ref_group= $group;
+    my $ref_section= $section;
+    my $ref_urlparams= "detail=$group&section=$section";
+    if (ref $group) {
+        $ref_group= $group->{Group};
+        $ref_section= $group->{Section};
+        $ref_urlparams= $group->{UrlParams};
+        $ref_urlparams =~ s/\bSLOTH\b/$sloth/;
+    }
+    print a({href=>"$self?$ref_urlparams"});
+    my $imgurl= "$self?graph=$ref_group&section=$ref_section";
+    print "<span style=\"white-space:nowrap\">";
+    my $elems= $group_elems{$ref_section,$ref_group};
+    foreach my $elem (@$elems) {
+       my $g= $graphs{$ref_section,$ref_group,$elem};
+       print img({src=>"$imgurl&elem=$elem&sloth=".($sloth + $g->{Slower}),
+                  alt=>''});
+    }
+    print "</span>";
+    print "</a>\n";
 }