| 1 |
#!/usr/bin/perl |
| 2 |
|
| 3 |
package Sack::Server; |
| 4 |
|
| 5 |
use warnings; |
| 6 |
use strict; |
| 7 |
|
| 8 |
my $debug = 0; |
| 9 |
|
| 10 |
use IO::Socket::INET; |
| 11 |
use IO::Select; |
| 12 |
|
| 13 |
use Data::Dump qw(dump); |
| 14 |
use Storable qw(); |
| 15 |
use File::Slurp; |
| 16 |
use Cwd qw(abs_path); |
| 17 |
|
| 18 |
use lib '/srv/Sack/lib'; |
| 19 |
use Sack::Merge; |
| 20 |
use Sack::Server::HTTP; |
| 21 |
use Sack::Server::HTML; |
| 22 |
use Sack::Server::Gnuplot; |
| 23 |
|
| 24 |
my @cloud; |
| 25 |
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 |
@cloud = read_file $cloud_path; |
| 28 |
@cloud = map { chomp $_; $_ } @cloud; |
| 29 |
|
| 30 |
warn "# cloud ",dump( @cloud ); |
| 31 |
|
| 32 |
my $listen_port = 4444; |
| 33 |
my $http_port = 4480; |
| 34 |
|
| 35 |
my $node_path = abs_path $0; |
| 36 |
$node_path =~ s{Server}{Client}; |
| 37 |
|
| 38 |
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 |
my $sel = IO::Select->new($lsn); |
| 41 |
$sel->add( $www ); |
| 42 |
|
| 43 |
my $info; |
| 44 |
sub info { |
| 45 |
my $port = shift; |
| 46 |
push @{ $info->{node}->{$port} }, [ @_ ]; |
| 47 |
} |
| 48 |
|
| 49 |
sub fork_ssh { |
| 50 |
my ( $port, $host ) = @_; |
| 51 |
|
| 52 |
if ( my $pid = fork ) { |
| 53 |
# parent |
| 54 |
info $port => 'forked', $pid; |
| 55 |
return $port; |
| 56 |
|
| 57 |
} elsif ( ! defined $pid ) { |
| 58 |
warn "can't fork $host $port"; |
| 59 |
return; |
| 60 |
} else { |
| 61 |
# child |
| 62 |
my $cmd = qq|ssh -F $cloud_path.ssh -R $port:127.0.0.1:$listen_port $host $node_path $port|; |
| 63 |
warn "# exec: $cmd\n"; |
| 64 |
exec $cmd; |
| 65 |
} |
| 66 |
} |
| 67 |
|
| 68 |
my $node_port = 4000; |
| 69 |
|
| 70 |
foreach my $host ( @cloud ) { |
| 71 |
system "find /srv/Sack/ | cpio --create --dereference | ssh -T -F $cloud_path.ssh $host cpio --extract --make-directories --unconditional"; |
| 72 |
fork_ssh( $node_port++, $host ); |
| 73 |
} |
| 74 |
|
| 75 |
my $session; |
| 76 |
|
| 77 |
sub to_all { |
| 78 |
my $data = shift; |
| 79 |
foreach my $port ( keys %{ $session->{port} } ) { |
| 80 |
warn ">>>> [$port]\n" if $debug; |
| 81 |
Storable::store_fd( $data, $session->{port}->{$port} ); |
| 82 |
} |
| 83 |
} |
| 84 |
|
| 85 |
our @shard_load_queue; |
| 86 |
sub load_shard { |
| 87 |
my $shard = shift @_ || return; |
| 88 |
|
| 89 |
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 |
foreach my $s ( @shards ) { |
| 99 |
if ( my $node = $info->{shard}->{$s} ) { |
| 100 |
next if $node =~ m{^\d+$}; # not node number |
| 101 |
} |
| 102 |
$info->{shard}->{$s} = 'wait'; |
| 103 |
push @shard_load_queue, $s; |
| 104 |
warn "queued $s for loading\n"; |
| 105 |
} |
| 106 |
to_all { load => $shard }; |
| 107 |
} |
| 108 |
|
| 109 |
sub run_view { |
| 110 |
my ( $path ) = @_; |
| 111 |
if ( ! -r $path ) { |
| 112 |
warn "ERROR view $path: $!"; |
| 113 |
return; |
| 114 |
} |
| 115 |
my $code = read_file $path; |
| 116 |
Sack::Merge->clean; |
| 117 |
delete( $info->{view} ); |
| 118 |
delete( $info->{merge} ); |
| 119 |
delete( $info->{shard} ); |
| 120 |
to_all { code => $code, view => $path }; |
| 121 |
}; |
| 122 |
|
| 123 |
our @responses; |
| 124 |
|
| 125 |
while (1) { |
| 126 |
for my $sock ($sel->can_read(1)) { |
| 127 |
if ($sock == $lsn) { |
| 128 |
my $new = $lsn->accept; |
| 129 |
$sel->add($new); |
| 130 |
$session->{peerport}->{ $new->peerport } = $new; |
| 131 |
warn "[socket] connect\n"; |
| 132 |
Storable::store_fd( { ping => 1 }, $new ); |
| 133 |
} elsif ( $sock == $www ) { |
| 134 |
my $client = $www->accept; |
| 135 |
Sack::Server::HTTP::request( $client, sub { |
| 136 |
my ( $send, $method, $param ) = @_; |
| 137 |
|
| 138 |
if ( $method =~ m{views} ) { |
| 139 |
run_view $method; |
| 140 |
print $send "HTTP/1.0 302 $method\r\nLocation: /\r\n\r\n"; |
| 141 |
return 1; |
| 142 |
} elsif ( $method =~ m{^/tmp/sack} ) { |
| 143 |
load_shard $method; |
| 144 |
print $send "HTTP/1.0 302 $method\r\nLocation: /\r\n\r\n"; |
| 145 |
return 1; |
| 146 |
} elsif ( $method =~ m{^/out/(.+)} ) { |
| 147 |
print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"; |
| 148 |
Sack::Server::HTML::send_out( $send, Sack::Merge->out, $1, $param ); |
| 149 |
return 1; |
| 150 |
} elsif ( $method =~ m{^/gnuplot} ) { |
| 151 |
eval { |
| 152 |
my $path = Sack::Server::Gnuplot::date( Sack::Merge->out, $param ); |
| 153 |
if ( -e $path ) { |
| 154 |
print $send "HTTP/1.0 200 OK\r\nContent-Type: image/png\r\n\r\n"; |
| 155 |
open(my $fh, '<', $path) || die $path; |
| 156 |
my $b; |
| 157 |
while ( read($fh, $b, 4096) ) { |
| 158 |
print $send $b; |
| 159 |
} |
| 160 |
return 1; |
| 161 |
} else { |
| 162 |
print $send "HTTP/1.0 404 no graph\r\n\r\n"; |
| 163 |
return 1; |
| 164 |
} |
| 165 |
}; |
| 166 |
warn "ERROR: $@" if $@; |
| 167 |
} |
| 168 |
|
| 169 |
print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"; |
| 170 |
|
| 171 |
print $send qq| |
| 172 |
|
| 173 |
<style type="text/css"> |
| 174 |
|
| 175 |
.running { |
| 176 |
color: #f00; |
| 177 |
} |
| 178 |
|
| 179 |
|
| 180 |
.forked { |
| 181 |
color: #f00; |
| 182 |
} |
| 183 |
|
| 184 |
.ping { |
| 185 |
color: #0f0; |
| 186 |
} |
| 187 |
|
| 188 |
.shards { |
| 189 |
font-family: monospace; |
| 190 |
// line-height: 0.8em; |
| 191 |
color: #0f0; |
| 192 |
} |
| 193 |
|
| 194 |
.send { |
| 195 |
color: #ff0; |
| 196 |
} |
| 197 |
|
| 198 |
.wait { |
| 199 |
color: #f00; |
| 200 |
} |
| 201 |
|
| 202 |
|
| 203 |
</style> |
| 204 |
|
| 205 |
|; |
| 206 |
|
| 207 |
print $send qq|<h1>Views</h1><ul>| |
| 208 |
, join("\n", map { |
| 209 |
my $view = $_; |
| 210 |
my $html = ''; |
| 211 |
if ( my $s = $info->{view}->{$view} ) { |
| 212 |
my @nodes = sort keys %$s; |
| 213 |
my $total = 0; |
| 214 |
$html .= qq|<table><tr><th>node</th><th>rows</th><th>shards</th><th>∑</th><th>merge</th></tr>|; |
| 215 |
foreach my $node ( @nodes ) { |
| 216 |
my $h = ''; |
| 217 |
my $shard = 0; |
| 218 |
foreach my $path ( sort keys %{ $s->{$node} } ) { |
| 219 |
my $affected = $s->{$node}->{$path}; |
| 220 |
my $n = '?'; |
| 221 |
$n = $1 if $path =~ m{/(\w)\w+/\d+}; |
| 222 |
my $class = $affected == 0 ? 'style="color: #888"' : ''; |
| 223 |
$h .= qq|<tt title="$affected $path"$class>$n</tt>|; |
| 224 |
$shard += $affected; |
| 225 |
$total += $affected; |
| 226 |
} |
| 227 |
my $merge = $info->{merge}->{$view}->{$node} || '?'; |
| 228 |
$html .= qq|<tr><td><tt>$node</tt></td><td>$shard</td><td>$h</td><td>$total</td><td>$merge</td></tr>\n|; |
| 229 |
} |
| 230 |
|
| 231 |
$html .= qq|</table>|; |
| 232 |
}; |
| 233 |
qq|<li><a href="$view">$view</a>$html| |
| 234 |
} glob '/srv/Sack/views/*/*.pl' ) |
| 235 |
, qq|</ul>| |
| 236 |
; |
| 237 |
|
| 238 |
my $out = Sack::Merge->out; |
| 239 |
if ( my $li = join("\n", map { qq|<li><input type=checkbox name=filter value="$_"><a href="/out/$_" target="$_">$_</a>| } keys %$out ) ) { |
| 240 |
print $send qq|<h1>Results</h1><form method="get" target="gnuplot" action="/gnuplot/"><ul>$li</ul><input type=submit value="Show checked"></form><img src="/gnuplot/">\n|; |
| 241 |
} |
| 242 |
|
| 243 |
print $send qq|<h1>Nodes</h1> |
| 244 |
|, join("\n", map { |
| 245 |
my $class = join(' ', map { $_->[0] } @{ $info->{node}->{$_} }); |
| 246 |
qq|<tt class="$class">$_</tt>|; |
| 247 |
} sort keys %{ $info->{node} } ); |
| 248 |
|
| 249 |
print $send qq|<h1>Shards</h1><ul>|; |
| 250 |
foreach my $path ( glob '/tmp/sack/*' ) { |
| 251 |
print $send qq|<li><a href="$path">$path</a><div class="shards">|; |
| 252 |
foreach my $s ( sort grep { m/$path/ } keys %{ $info->{shard} } ) { |
| 253 |
my $i = $info->{shard}->{$s}; |
| 254 |
print $send qq|<span class="$i" title="$s">$i</span> |; |
| 255 |
} |
| 256 |
print $send qq|</div>|; |
| 257 |
} |
| 258 |
print $send qq|</ul>|; |
| 259 |
|
| 260 |
if ( $param->{info} ) { |
| 261 |
print $send qq|<a href="?info=0">hide info</a>|; |
| 262 |
print $send '<pre>', dump($info), '</pre>' |
| 263 |
} else { |
| 264 |
print $send qq|<a href="?info=1">show info</a>|; |
| 265 |
} |
| 266 |
return 1; |
| 267 |
} ); |
| 268 |
} else { |
| 269 |
my $data = eval { Storable::fd_retrieve( $sock ) }; |
| 270 |
if ( $@ ) { |
| 271 |
delete $session->{$sock}; |
| 272 |
warn "[socket] disconnect: $@\n"; |
| 273 |
$sel->remove($sock); |
| 274 |
$sock->close; |
| 275 |
} else { |
| 276 |
warn "<<<< ", dump($data), $/ if $debug; |
| 277 |
|
| 278 |
if ( my $path = $data->{shard} ) { |
| 279 |
$info->{shard}->{ $path } = $data->{port}; |
| 280 |
# FIXME will need push for multiple copies of shards |
| 281 |
} |
| 282 |
|
| 283 |
if ( my $repl = $data->{repl} ) { |
| 284 |
my $response = { repl_pid => $$ }; |
| 285 |
if ( $repl =~ m/ping/ ) { |
| 286 |
to_all { ping => 1 }; |
| 287 |
} elsif ( $repl =~ m/info/ ) { |
| 288 |
$response->{info} = $info; |
| 289 |
} elsif ( $repl =~ m{load\s*(\S+)?} ) { |
| 290 |
load_shard $1; |
| 291 |
} elsif ( $repl =~ m{view\s*(\S+)?} ) { |
| 292 |
run_view $1; |
| 293 |
} elsif ( $repl =~ m{out} ) { |
| 294 |
my $out = Sack::Merge->out; |
| 295 |
warn "out ",dump( $out ); |
| 296 |
$response->{out} = $out; |
| 297 |
} elsif ( $repl =~ m{clean} ) { |
| 298 |
delete $info->{shard}; |
| 299 |
to_all { clean => 1 }; |
| 300 |
} elsif ( $repl eq 'exit' ) { |
| 301 |
to_all { exit => 1 }; |
| 302 |
sleep 1; |
| 303 |
exit; |
| 304 |
} elsif ( $repl eq '.' ) { |
| 305 |
$response->{'.'} = [ @responses ]; |
| 306 |
@responses = (); |
| 307 |
} elsif ( $repl =~ m{(\w+)\s*(.+)?} ) { |
| 308 |
to_all { $1 => $2 }; |
| 309 |
} else { |
| 310 |
$response->{error}->{repl} = $repl; |
| 311 |
} |
| 312 |
Storable::store_fd( $response, $sock ); |
| 313 |
} elsif ( $data->{ping} ) { |
| 314 |
my $port = $data->{port}; |
| 315 |
info $port => 'ping', $port; |
| 316 |
$session->{port}->{ $data->{port} } = $sock; |
| 317 |
} elsif ( defined $data->{load} && $data->{load} eq 'shard' ) { |
| 318 |
if ( my $path = shift @shard_load_queue ) { |
| 319 |
$info->{shard}->{$path} = 'read'; |
| 320 |
my $shard = Storable::retrieve $path; |
| 321 |
$info->{shard}->{$path} = 'send'; |
| 322 |
warn ">>>> [", $data->{port}, "] sending shard $path\n"; |
| 323 |
Storable::store_fd( { path => $path, shard => $shard }, $sock ); |
| 324 |
} else { |
| 325 |
warn "no more shards for [", $data->{port}, "]\n"; |
| 326 |
} |
| 327 |
} elsif ( exists $data->{out} ) { |
| 328 |
my $added = Sack::Merge->add( $data->{out} ) if defined $data->{out}; |
| 329 |
$info->{merge}->{ $data->{view} }->{ $data->{port} } = $added; |
| 330 |
$info->{view }->{ $data->{view} }->{ $data->{port} } = $data->{on_shard}; |
| 331 |
# refresh shard allocation |
| 332 |
$info->{shard}->{ $_ } = $data->{port} foreach keys %{ $data->{on_shard} }; |
| 333 |
} elsif ( exists $data->{port} ) { |
| 334 |
push @responses, $data; |
| 335 |
warn "# ",dump($data),$/; |
| 336 |
} else { |
| 337 |
warn "UNKNOWN ",dump($data); |
| 338 |
} |
| 339 |
} |
| 340 |
} |
| 341 |
} |
| 342 |
} |
Parent Directory
| 
Revision Log