/[Sack]/trunk/lib/Sack/Server.pm
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Annotation of /trunk/lib/Sack/Server.pm

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Revision 245 - (hide annotations)
Thu Nov 26 19:02:01 2009 UTC (14 years, 6 months ago) by dpavlin
File size: 8458 byte(s)
support multiple url args which collapse into array and use it for filter

1 dpavlin 163 #!/usr/bin/perl
2    
3 dpavlin 179 package Sack::Server;
4    
5 dpavlin 163 use warnings;
6     use strict;
7    
8 dpavlin 232 my $debug = 0;
9    
10 dpavlin 163 use IO::Socket::INET;
11     use IO::Select;
12    
13     use Data::Dump qw(dump);
14     use Storable qw();
15 dpavlin 169 use File::Slurp;
16 dpavlin 176 use Cwd qw(abs_path);
17 dpavlin 163
18 dpavlin 200 use lib '/srv/Sack/lib';
19     use Sack::Merge;
20 dpavlin 210 use Sack::Server::HTTP;
21 dpavlin 213 use Sack::Server::HTML;
22 dpavlin 241 use Sack::Server::Gnuplot;
23 dpavlin 200
24 dpavlin 179 my @cloud;
25 dpavlin 209 my $cloud_path = $ENV{CLOUD} || "etc/cloud";
26     die "start with: CLOUD=etc/cloud perl -I/srv/Sack/lib $0\n" unless -e $cloud_path;
27 dpavlin 169 @cloud = read_file $cloud_path;
28     @cloud = map { chomp $_; $_ } @cloud;
29    
30     warn "# cloud ",dump( @cloud );
31    
32 dpavlin 163 my $listen_port = 4444;
33 dpavlin 210 my $http_port = 4480;
34 dpavlin 163
35 dpavlin 176 my $node_path = abs_path $0;
36 dpavlin 181 $node_path =~ s{Server}{Client};
37 dpavlin 163
38 dpavlin 210 my $lsn = IO::Socket::INET->new(Listen => 1, LocalPort => $listen_port, Reuse => 1) or die "$listen_port $!";
39     my $www = IO::Socket::INET->new(Listen => 1, LocalPort => $http_port, Reuse => 1) or die "$http_port $!";
40 dpavlin 163 my $sel = IO::Select->new($lsn);
41 dpavlin 210 $sel->add( $www );
42 dpavlin 163
43 dpavlin 166 my $info;
44     sub info {
45     my $port = shift;
46 dpavlin 211 push @{ $info->{node}->{$port} }, [ @_ ];
47 dpavlin 166 }
48    
49 dpavlin 179 sub fork_ssh {
50 dpavlin 163 my ( $port, $host ) = @_;
51    
52     if ( my $pid = fork ) {
53     # parent
54 dpavlin 166 info $port => 'forked', $pid;
55 dpavlin 163 return $port;
56    
57     } elsif ( ! defined $pid ) {
58     warn "can't fork $host $port";
59     return;
60     } else {
61     # child
62 dpavlin 169 my $cmd = qq|ssh -F $cloud_path.ssh -R $port:127.0.0.1:$listen_port $host $node_path $port|;
63 dpavlin 163 warn "# exec: $cmd\n";
64     exec $cmd;
65     }
66     }
67    
68     my $node_port = 4000;
69    
70 dpavlin 169 foreach my $host ( @cloud ) {
71 dpavlin 176 system "find /srv/Sack/ | cpio --create --dereference | ssh -T -F $cloud_path.ssh $host cpio --extract --make-directories --unconditional";
72 dpavlin 179 fork_ssh( $node_port++, $host );
73 dpavlin 163 }
74    
75     my $session;
76    
77 dpavlin 188 sub to_all {
78     my $data = shift;
79     foreach my $port ( keys %{ $session->{port} } ) {
80 dpavlin 232 warn ">>>> [$port]\n" if $debug;
81 dpavlin 188 Storable::store_fd( $data, $session->{port}->{$port} );
82     }
83     }
84    
85 dpavlin 221 our @shard_load_queue;
86     sub load_shard {
87     my $shard = shift @_ || return;
88 dpavlin 192
89 dpavlin 221 warn "# load_shard $shard\n";
90    
91     my @shards = glob "$shard/*";
92    
93     if ( ! @shards ) {
94     warn "no shards for $shard\n";
95     return;
96     }
97    
98     $info->{shard}->{$_} = 'wait' foreach @shards;
99     warn "loading shard $shard from ", dump( @shards );
100    
101     push @shard_load_queue, @shards;
102     to_all { load => $shard };
103     }
104    
105 dpavlin 232 sub run_view {
106     my ( $path ) = @_;
107     if ( ! -r $path ) {
108     warn "ERROR view $path: $!";
109     return;
110     }
111     my $code = read_file $path;
112     Sack::Merge->clean;
113     delete( $info->{view} );
114 dpavlin 235 delete( $info->{merge} );
115 dpavlin 232 to_all { code => $code, view => $path };
116     };
117    
118 dpavlin 163 while (1) {
119     for my $sock ($sel->can_read(1)) {
120     if ($sock == $lsn) {
121     my $new = $lsn->accept;
122     $sel->add($new);
123 dpavlin 174 $session->{peerport}->{ $new->peerport } = $new;
124 dpavlin 164 warn "[socket] connect\n";
125 dpavlin 163 Storable::store_fd( { ping => 1 }, $new );
126 dpavlin 210 } elsif ( $sock == $www ) {
127     my $client = $www->accept;
128     Sack::Server::HTTP::request( $client, sub {
129     my ( $send, $method, $param ) = @_;
130 dpavlin 212
131     if ( $method =~ m{views} ) {
132 dpavlin 232 run_view $method;
133 dpavlin 212 print $send "HTTP/1.0 302 $method\r\nLocation: /\r\n\r\n";
134 dpavlin 213 return 1;
135 dpavlin 212 } elsif ( $method =~ m{^/tmp/sack} ) {
136 dpavlin 221 load_shard $method;
137 dpavlin 212 print $send "HTTP/1.0 302 $method\r\nLocation: /\r\n\r\n";
138 dpavlin 213 return 1;
139     } elsif ( $method =~ m{^/out/(.+)} ) {
140     print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n";
141     Sack::Server::HTML::send_out( $send, Sack::Merge->out, $1, $param );
142     return 1;
143 dpavlin 241 } elsif ( $method =~ m{^/gnuplot} ) {
144     eval {
145 dpavlin 245 my $path = Sack::Server::Gnuplot::date( Sack::Merge->out, $param );
146 dpavlin 241 if ( -e $path ) {
147     print $send "HTTP/1.0 200 OK\r\nContent-Type: image/png\r\n\r\n";
148     open(my $fh, '<', $path) || die $path;
149     my $b;
150     while ( read($fh, $b, 4096) ) {
151     print $send $b;
152     }
153     return 1;
154 dpavlin 245 } else {
155     print $send "HTTP/1.0 404 no graph\r\n\r\n";
156     return 1;
157 dpavlin 241 }
158     };
159     warn "ERROR: $@" if $@;
160 dpavlin 212 }
161    
162     print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n";
163    
164 dpavlin 232 print $send qq|
165 dpavlin 212
166 dpavlin 232 <style type="text/css">
167 dpavlin 213
168 dpavlin 232 .running {
169     color: #f00;
170     }
171    
172    
173 dpavlin 219 .forked {
174     color: #f00;
175     }
176 dpavlin 212
177 dpavlin 219 .ping {
178     color: #0f0;
179     }
180 dpavlin 222
181     .shards {
182     font-family: monospace;
183     line-height: 0.8em;
184     color: #0f0;
185     }
186    
187     .send {
188     color: #ff0;
189     }
190    
191     .wait {
192     color: #f00;
193     }
194    
195    
196 dpavlin 219 </style>
197 dpavlin 232
198     |;
199    
200     print $send qq|<h1>Views</h1><ul>|
201     , join("\n", map {
202     my $view = $_;
203     my $html = '';
204     if ( my $s = $info->{view}->{$view} ) {
205     my @nodes = sort keys %$s;
206     my $total = 0;
207 dpavlin 237 $html .= qq|<table><tr><th>node</th><th>rows</th><th>shards</th><th>&sum;</th><th>merge</th></tr>|;
208 dpavlin 232 foreach my $node ( @nodes ) {
209     my $h = '';
210     my $shard = 0;
211     foreach my $path ( sort keys %{ $s->{$node} } ) {
212     my $affected = $s->{$node}->{$path};
213 dpavlin 233 my $n = '?';
214     $n = $1 if $path =~ m{/(\w)\w+/\d+};
215 dpavlin 235 my $class = $affected == 0 ? 'style="color: #888"' : '';
216     $h .= qq|<tt title="$affected $path"$class>$n</tt>|;
217 dpavlin 232 $shard += $affected;
218     $total += $affected;
219     }
220 dpavlin 235 my $merge = $info->{merge}->{$view}->{$node};
221 dpavlin 237 $html .= qq|<tr><td><tt>$node</tt></td><td>$shard</td><td>$h</td><td>$total</td><td>$merge</td></tr>\n|;
222 dpavlin 232 }
223    
224     $html .= qq|</table>|;
225     };
226     qq|<li><a href="$view">$view</a>$html|
227     } glob '/srv/Sack/views/*/*.pl' )
228     , qq|</ul>|
229     ;
230    
231     my $out = Sack::Merge->out;
232 dpavlin 241 if ( my $li = join("\n", map { qq|<li><a href="/out/$_" target="$_">$_</a>| } keys %$out ) ) {
233     print $send qq|<h1>Results</h1><ul>$li</ul><img src="/gnuplot/">\n|;
234     }
235 dpavlin 232
236     print $send qq|<h1>Nodes</h1>
237 dpavlin 219 |, join("\n", map {
238     my $class = join(' ', map { $_->[0] } @{ $info->{node}->{$_} });
239     qq|<span class="$class">$_</span>|;
240     } sort keys %{ $info->{node} } );
241    
242 dpavlin 221 print $send qq|<h1>Data</h1><ul>|;
243     foreach my $path ( glob '/tmp/sack/*' ) {
244 dpavlin 222 print $send qq|<li><a href="$path">$path</a><div class="shards">|;
245 dpavlin 221 foreach my $s ( sort grep { m/$path/ } keys %{ $info->{shard} } ) {
246 dpavlin 222 my $i = $info->{shard}->{$s};
247     print $send qq|<span class=$i>$i</span> |;
248 dpavlin 221 }
249 dpavlin 222 print $send qq|</div>|;
250 dpavlin 221 }
251     print $send qq|</ul>|;
252 dpavlin 219
253 dpavlin 233 if ( $param->{info} ) {
254     print $send qq|<a href="?info=0">hide info</a>|;
255     print $send '<pre>', dump($info), '</pre>'
256     } else {
257     print $send qq|<a href="?info=1">show info</a>|;
258     }
259 dpavlin 232 return 1;
260 dpavlin 210 } );
261 dpavlin 163 } else {
262 dpavlin 165 my $data = eval { Storable::fd_retrieve( $sock ) };
263     if ( $@ ) {
264     delete $session->{$sock};
265     warn "[socket] disconnect: $@\n";
266     $sel->remove($sock);
267     $sock->close;
268     } else {
269 dpavlin 232 warn "<<<< ", dump($data), $/ if $debug;
270 dpavlin 196
271     if ( my $path = $data->{shard} ) {
272 dpavlin 211 $info->{shard}->{ $path } = $data->{port};
273     # FIXME will need push for multiple copies of shards
274 dpavlin 196 }
275    
276 dpavlin 192 if ( my $repl = $data->{repl} ) {
277     my $response = { repl_pid => $$ };
278     if ( $repl =~ m/ping/ ) {
279 dpavlin 188 to_all { ping => 1 };
280 dpavlin 192 } elsif ( $repl =~ m/info/ ) {
281 dpavlin 175 $response->{info} = $info;
282 dpavlin 192 } elsif ( $repl =~ m{load\s*(\S+)?} ) {
283 dpavlin 221 load_shard $1;
284 dpavlin 196 } elsif ( $repl =~ m{view\s*(\S+)?} ) {
285 dpavlin 232 run_view $1;
286 dpavlin 196 } elsif ( $repl =~ m{debug\s*(.+)?} ) {
287     to_all { debug => $1 };
288 dpavlin 200 } elsif ( $repl =~ m{out} ) {
289     my $out = Sack::Merge->out;
290     warn "out ",dump( $out );
291     $response->{out} = $out;
292 dpavlin 203 } elsif ( $repl =~ m{clean} ) {
293     delete $info->{shard};
294     to_all { clean => 1 };
295 dpavlin 232 } elsif ( $repl eq 'exit' ) {
296     to_all { exit => 1 };
297     sleep 1;
298     exit;
299 dpavlin 189 } else {
300     $response->{error}->{unknown} = $data;
301 dpavlin 174 }
302 dpavlin 166 Storable::store_fd( $response, $sock );
303     } elsif ( $data->{ping} ) {
304 dpavlin 174 my $port = $data->{port};
305     info $port => 'ping', $port;
306     $session->{port}->{ $data->{port} } = $sock;
307 dpavlin 232 } elsif ( defined $data->{load} && $data->{load} eq 'shard' ) {
308 dpavlin 221 if ( my $path = shift @shard_load_queue ) {
309     $info->{shard}->{$path} = 'read';
310 dpavlin 192 my $shard = Storable::retrieve $path;
311 dpavlin 221 $info->{shard}->{$path} = 'send';
312 dpavlin 192 warn ">>>> [", $data->{port}, "] sending shard $path\n";
313     Storable::store_fd( { path => $path, shard => $shard }, $sock );
314     } else {
315     warn "no more shards for [", $data->{port}, "]\n";
316     }
317 dpavlin 235 } elsif ( exists $data->{out} ) {
318     my $added = Sack::Merge->add( $data->{out} ) if defined $data->{out};
319     $info->{merge}->{ $data->{view} }->{ $data->{port} } = $added;
320     $info->{view }->{ $data->{view} }->{ $data->{port} } = $data->{on_shard};
321 dpavlin 192 } else {
322     warn "UNKNOWN ",dump($data);
323 dpavlin 164 }
324 dpavlin 163 }
325     }
326     }
327     }

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