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#!/usr/bin/perl |
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package Sack::Server; |
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use warnings; |
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use strict; |
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my $debug = 0; |
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use IO::Socket::INET; |
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use IO::Select; |
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use Data::Dump qw(dump); |
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use Storable qw(); |
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use File::Slurp; |
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use Cwd qw(abs_path); |
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use lib '/srv/Sack/lib'; |
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use Sack::Merge; |
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use Sack::Server::HTTP; |
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use Sack::Server::HTML; |
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use Sack::Server::Gnuplot; |
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|
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my @cloud; |
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my $cloud_path = $ENV{CLOUD} || "etc/cloud"; |
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die "start with: CLOUD=etc/cloud perl -I/srv/Sack/lib $0\n" unless -e $cloud_path; |
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@cloud = read_file $cloud_path; |
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@cloud = map { chomp $_; $_ } @cloud; |
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warn "# cloud ",dump( @cloud ); |
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my $listen_port = 4444; |
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my $http_port = 4480; |
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|
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my $node_path = abs_path $0; |
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$node_path =~ s{Server}{Client}; |
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my $lsn = IO::Socket::INET->new(Listen => 1, LocalPort => $listen_port, Reuse => 1) or die "$listen_port $!"; |
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my $www = IO::Socket::INET->new(Listen => 1, LocalPort => $http_port, Reuse => 1) or die "$http_port $!"; |
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my $sel = IO::Select->new($lsn); |
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$sel->add( $www ); |
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my $info; |
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sub fork_ssh { |
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my ( $port, $host ) = @_; |
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if ( my $pid = fork ) { |
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# parent |
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$info->{forked}->{$port} = $pid; |
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$info->{pending}->{$port} = 'forked'; |
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$info->{host}->{$port} = $host; |
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return $port; |
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} elsif ( ! defined $pid ) { |
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warn "can't fork $host $port"; |
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return; |
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} elsif ( $host =~ m/^(127.0.0.1|localhost)$/ ) { |
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warn "# localhost, just execute node\n"; |
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exec $node_path, $port, $listen_port; |
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} else { |
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# child |
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warn "[$port] cpio last version\n"; |
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system "find /srv/Sack/ | cpio --create --dereference | ssh -T -F $cloud_path.ssh $host cpio --extract --make-directories --unconditional"; |
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my $cmd = qq|ssh -F $cloud_path.ssh -R $port:127.0.0.1:$listen_port $host $node_path $port|; |
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warn "# exec: $cmd\n"; |
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exec $cmd; |
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} |
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} |
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my $node_port = 4000; |
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foreach my $host ( @cloud ) { |
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fork_ssh( $node_port++, $host ); |
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} |
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my $session; |
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sub all_ports { keys %{ $session->{port} } } |
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sub to_all { |
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my $data = shift; |
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foreach my $port ( all_ports ) { |
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warn ">>>> [$port]\n" if $debug; |
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Storable::store_fd( $data, $session->{port}->{$port} ); |
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} |
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} |
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our @shard_load_queue; |
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sub load_shard { |
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my $shard = shift @_ || return; |
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warn "# load_shard $shard\n"; |
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$shard .= '/*' if -d $shard; |
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my @shards = glob $shard; |
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if ( ! @shards ) { |
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warn "no shards for $shard\n"; |
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return; |
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} |
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foreach my $s ( @shards ) { |
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if ( my $node = $info->{shard}->{$s} ) { |
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next if $node =~ m{^\d+$}; # not node number |
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} |
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$info->{shard}->{$s} = 'wait'; |
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push @shard_load_queue, $s; |
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warn "queued $s for loading\n"; |
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} |
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dpavlin |
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# XXX depriciated but not removed yet |
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if ( 0 ) { |
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to_all { load => $shard }; |
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$info->{pending}->{$_} = 'load' foreach all_ports; |
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return; |
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} |
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my @nodes = all_ports; |
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my $chunk = int( ( $#shard_load_queue + 1 ) / $#nodes ); |
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my $pid_port; |
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foreach my $port ( all_ports ) { |
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$info->{pending}->{$port} = 'load'; |
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my @shards = splice @shard_load_queue, 0, $chunk; |
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my $sock = $session->{port}->{$port}; |
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if ( my $pid = fork ) { |
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$pid_port->{$pid} = $port; |
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# parent |
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} elsif ( ! defined $pid ) { |
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die "can't fork $!"; |
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} else { |
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# child |
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warn ">>>> [$port] bulk_load ", $#shards + 1, " shards\n"; |
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Storable::store_fd( { bulk_load => [ @shards ] }, $sock ); |
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foreach my $s ( @shards ) { |
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warn ">>>> [$port] bulk_load $s\n"; |
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Storable::store_fd( Storable::retrieve( $s ), $sock ); |
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} |
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warn ">>>> [$port] bulk_load finished\n"; |
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exit; |
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} |
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} |
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foreach my $child ( keys %$pid_port ) { |
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warn "waitpid $child\n"; |
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waitpid($child, 0); |
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delete( $info->{pending}->{ $pid_port->{$child} } ); |
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} |
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$info->{pending}->{$_} = 'view' foreach all_ports; |
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to_all { code => "# collect back loaded shards\n", view => 'noop' }; |
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} |
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sub run_view { |
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my ( $path ) = @_; |
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if ( ! -r $path ) { |
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warn "ERROR view $path: $!"; |
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return; |
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} |
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my $code = read_file $path; |
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Sack::Merge->clean; |
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delete( $info->{view} ); |
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dpavlin |
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delete( $info->{merge} ); |
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dpavlin |
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delete( $info->{shard} ); |
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dpavlin |
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$info->{pending}->{$_} = 'view' foreach all_ports; |
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dpavlin |
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to_all { code => $code, view => $path }; |
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}; |
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dpavlin |
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our @responses; |
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dpavlin |
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while (1) { |
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for my $sock ($sel->can_read(1)) { |
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if ($sock == $lsn) { |
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my $new = $lsn->accept; |
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$sel->add($new); |
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dpavlin |
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$session->{peerport}->{ $new->peerport } = $new; |
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dpavlin |
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warn "[socket] connect\n"; |
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Storable::store_fd( { ping => 1 }, $new ); |
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dpavlin |
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} elsif ( $sock == $www ) { |
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my $client = $www->accept; |
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Sack::Server::HTTP::request( $client, sub { |
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my ( $send, $method, $param ) = @_; |
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dpavlin |
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if ( $method =~ m{views} ) { |
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dpavlin |
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run_view $method; |
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dpavlin |
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print $send "HTTP/1.0 302 $method\r\nLocation: /\r\n\r\n"; |
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dpavlin |
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return 1; |
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dpavlin |
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} elsif ( $method =~ m{^/tmp/sack} ) { |
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dpavlin |
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load_shard $method; |
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dpavlin |
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print $send "HTTP/1.0 302 $method\r\nLocation: /\r\n\r\n"; |
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dpavlin |
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return 1; |
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} elsif ( $method =~ m{^/out/(.+)} ) { |
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print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"; |
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Sack::Server::HTML::send_out( $send, Sack::Merge->out, $1, $param ); |
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return 1; |
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dpavlin |
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} elsif ( $method =~ m{^/gnuplot} ) { |
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eval { |
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dpavlin |
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my $path = Sack::Server::Gnuplot::date( Sack::Merge->out, $param ); |
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dpavlin |
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if ( -e $path ) { |
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print $send "HTTP/1.0 200 OK\r\nContent-Type: image/png\r\n\r\n"; |
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open(my $fh, '<', $path) || die $path; |
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my $b; |
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while ( read($fh, $b, 4096) ) { |
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print $send $b; |
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} |
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return 1; |
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dpavlin |
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} else { |
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print $send "HTTP/1.0 404 no graph\r\n\r\n"; |
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return 1; |
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dpavlin |
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} |
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}; |
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warn "ERROR: $@" if $@; |
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dpavlin |
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} elsif ( $method =~ m{^/favicon.ico} ) { |
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print $send "HTTP/1.0 200 OK\r\nContent-Type: image/vnd.microsoft.icon\r\n\r\n", read_file( 'artwork/favicon.ico' ); |
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return 1; |
224 |
dpavlin |
275 |
} elsif ( $method =~ m{/nodes} ) { |
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to_all { ping => 1 }; |
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my @proc = ( 'MemTotal', 'MemFree', 'Buffers', 'Cached', 'VmSize', 'VmPeak' ); |
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print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n", |
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'<table><tr><th>', join('</th><th>', 'node', 'ip', @proc), '</th></tr>'; |
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foreach my $node ( sort { |
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$info->{host}->{$a} cmp $info->{host}->{$b} || # ip |
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$a <=> $b # node |
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} keys %{$info->{proc}} ) { |
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print $send '<tr><td>', join('</td><td align=right>', |
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$node, $info->{host}->{$node}, map { |
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my $kb = $info->{proc}->{$node}->{$_}; |
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$kb =~ s/\s+kb//i; $kb; |
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} @proc ), '</td><tr>'; |
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} |
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print $send '</table>'; |
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return 1; |
241 |
dpavlin |
212 |
} |
242 |
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dpavlin |
263 |
my $refresh = $param->{refresh}; |
244 |
dpavlin |
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$refresh = 1 if grep { $info->{pending}->{$_} ne 'forked' } keys %{ $info->{pending} }; |
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# we don't care about refresh is nodes are stuck in forked state! |
246 |
dpavlin |
263 |
|
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dpavlin |
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print $send "HTTP/1.0 200 OK\r\nContent-Type: text/html" |
248 |
dpavlin |
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, ( $refresh ? "\r\nRefresh: $refresh" : '' ) |
249 |
dpavlin |
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, "\r\n\r\n" |
250 |
dpavlin |
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, ( $refresh ? qq|<span style="color: #888; float:right">$refresh</span>| : '' ) |
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dpavlin |
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; |
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dpavlin |
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|
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dpavlin |
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print $send qq| |
254 |
dpavlin |
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|
255 |
dpavlin |
232 |
<style type="text/css"> |
256 |
dpavlin |
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|
257 |
dpavlin |
232 |
.running { |
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color: #f00; |
259 |
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} |
260 |
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261 |
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262 |
dpavlin |
219 |
.forked { |
263 |
dpavlin |
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color: #888; |
264 |
dpavlin |
263 |
} |
265 |
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266 |
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.ping { |
267 |
dpavlin |
265 |
color: #0f0; |
268 |
dpavlin |
263 |
} |
269 |
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270 |
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.load { |
271 |
dpavlin |
219 |
color: #f00; |
272 |
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} |
273 |
dpavlin |
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|
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dpavlin |
263 |
.view { |
275 |
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color: #00f; |
276 |
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} |
277 |
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278 |
dpavlin |
222 |
.shards { |
279 |
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font-family: monospace; |
280 |
dpavlin |
250 |
// line-height: 0.8em; |
281 |
dpavlin |
222 |
color: #0f0; |
282 |
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} |
283 |
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284 |
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.send { |
285 |
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color: #ff0; |
286 |
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} |
287 |
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288 |
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.wait { |
289 |
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color: #f00; |
290 |
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} |
291 |
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292 |
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293 |
dpavlin |
219 |
</style> |
294 |
dpavlin |
232 |
|
295 |
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|; |
296 |
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297 |
dpavlin |
264 |
my $out = Sack::Merge->out; |
298 |
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if ( my $li = join("\n", map { qq|<li><input type=checkbox name=filter value="$_"><a href="/out/$_" target="$_">$_</a>| } keys %$out ) ) { |
299 |
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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|; |
300 |
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} |
301 |
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302 |
dpavlin |
232 |
print $send qq|<h1>Views</h1><ul>| |
303 |
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, join("\n", map { |
304 |
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my $view = $_; |
305 |
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my $html = ''; |
306 |
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if ( my $s = $info->{view}->{$view} ) { |
307 |
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my @nodes = sort keys %$s; |
308 |
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my $total = 0; |
309 |
dpavlin |
237 |
$html .= qq|<table><tr><th>node</th><th>rows</th><th>shards</th><th>∑</th><th>merge</th></tr>|; |
310 |
dpavlin |
232 |
foreach my $node ( @nodes ) { |
311 |
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my $h = ''; |
312 |
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my $shard = 0; |
313 |
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foreach my $path ( sort keys %{ $s->{$node} } ) { |
314 |
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my $affected = $s->{$node}->{$path}; |
315 |
dpavlin |
233 |
my $n = '?'; |
316 |
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$n = $1 if $path =~ m{/(\w)\w+/\d+}; |
317 |
dpavlin |
235 |
my $class = $affected == 0 ? 'style="color: #888"' : ''; |
318 |
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$h .= qq|<tt title="$affected $path"$class>$n</tt>|; |
319 |
dpavlin |
232 |
$shard += $affected; |
320 |
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$total += $affected; |
321 |
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} |
322 |
dpavlin |
247 |
my $merge = $info->{merge}->{$view}->{$node} || '?'; |
323 |
dpavlin |
237 |
$html .= qq|<tr><td><tt>$node</tt></td><td>$shard</td><td>$h</td><td>$total</td><td>$merge</td></tr>\n|; |
324 |
dpavlin |
232 |
} |
325 |
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326 |
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$html .= qq|</table>|; |
327 |
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}; |
328 |
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qq|<li><a href="$view">$view</a>$html| |
329 |
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} glob '/srv/Sack/views/*/*.pl' ) |
330 |
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, qq|</ul>| |
331 |
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; |
332 |
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|
333 |
dpavlin |
263 |
print $send qq|<h1>Nodes</h1>|; |
334 |
dpavlin |
270 |
foreach my $node ( sort keys %{ $info->{forked} } ) { |
335 |
dpavlin |
271 |
my $attr = qq| title="$info->{host}->{$node}"|; |
336 |
dpavlin |
265 |
if ( my $pending = $info->{pending}->{$node} ) { |
337 |
dpavlin |
266 |
$attr .= qq| class="$pending"|; |
338 |
dpavlin |
265 |
} |
339 |
dpavlin |
266 |
print $send qq|<tt$attr>$node</tt>\n|; |
340 |
dpavlin |
263 |
} |
341 |
dpavlin |
275 |
print $send qq|<a href=/nodes/>details</a>|; |
342 |
dpavlin |
219 |
|
343 |
dpavlin |
249 |
print $send qq|<h1>Shards</h1><ul>|; |
344 |
dpavlin |
221 |
foreach my $path ( glob '/tmp/sack/*' ) { |
345 |
dpavlin |
222 |
print $send qq|<li><a href="$path">$path</a><div class="shards">|; |
346 |
dpavlin |
221 |
foreach my $s ( sort grep { m/$path/ } keys %{ $info->{shard} } ) { |
347 |
dpavlin |
222 |
my $i = $info->{shard}->{$s}; |
348 |
dpavlin |
249 |
print $send qq|<span class="$i" title="$s">$i</span> |; |
349 |
dpavlin |
221 |
} |
350 |
dpavlin |
222 |
print $send qq|</div>|; |
351 |
dpavlin |
221 |
} |
352 |
|
|
print $send qq|</ul>|; |
353 |
dpavlin |
219 |
|
354 |
dpavlin |
233 |
if ( $param->{info} ) { |
355 |
|
|
print $send qq|<a href="?info=0">hide info</a>|; |
356 |
|
|
print $send '<pre>', dump($info), '</pre>' |
357 |
|
|
} else { |
358 |
|
|
print $send qq|<a href="?info=1">show info</a>|; |
359 |
|
|
} |
360 |
dpavlin |
232 |
return 1; |
361 |
dpavlin |
210 |
} ); |
362 |
dpavlin |
163 |
} else { |
363 |
dpavlin |
165 |
my $data = eval { Storable::fd_retrieve( $sock ) }; |
364 |
|
|
if ( $@ ) { |
365 |
|
|
delete $session->{$sock}; |
366 |
|
|
warn "[socket] disconnect: $@\n"; |
367 |
|
|
$sel->remove($sock); |
368 |
|
|
$sock->close; |
369 |
|
|
} else { |
370 |
dpavlin |
232 |
warn "<<<< ", dump($data), $/ if $debug; |
371 |
dpavlin |
196 |
|
372 |
|
|
if ( my $path = $data->{shard} ) { |
373 |
dpavlin |
211 |
$info->{shard}->{ $path } = $data->{port}; |
374 |
|
|
# FIXME will need push for multiple copies of shards |
375 |
dpavlin |
196 |
} |
376 |
|
|
|
377 |
dpavlin |
192 |
if ( my $repl = $data->{repl} ) { |
378 |
|
|
my $response = { repl_pid => $$ }; |
379 |
|
|
if ( $repl =~ m/ping/ ) { |
380 |
dpavlin |
188 |
to_all { ping => 1 }; |
381 |
dpavlin |
192 |
} elsif ( $repl =~ m/info/ ) { |
382 |
dpavlin |
175 |
$response->{info} = $info; |
383 |
dpavlin |
192 |
} elsif ( $repl =~ m{load\s*(\S+)?} ) { |
384 |
dpavlin |
221 |
load_shard $1; |
385 |
dpavlin |
196 |
} elsif ( $repl =~ m{view\s*(\S+)?} ) { |
386 |
dpavlin |
232 |
run_view $1; |
387 |
dpavlin |
200 |
} elsif ( $repl =~ m{out} ) { |
388 |
|
|
my $out = Sack::Merge->out; |
389 |
|
|
warn "out ",dump( $out ); |
390 |
|
|
$response->{out} = $out; |
391 |
dpavlin |
203 |
} elsif ( $repl =~ m{clean} ) { |
392 |
|
|
delete $info->{shard}; |
393 |
|
|
to_all { clean => 1 }; |
394 |
dpavlin |
232 |
} elsif ( $repl eq 'exit' ) { |
395 |
|
|
to_all { exit => 1 }; |
396 |
|
|
sleep 1; |
397 |
|
|
exit; |
398 |
dpavlin |
247 |
} elsif ( $repl eq '.' ) { |
399 |
|
|
$response->{'.'} = [ @responses ]; |
400 |
|
|
@responses = (); |
401 |
|
|
} elsif ( $repl =~ m{(\w+)\s*(.+)?} ) { |
402 |
|
|
to_all { $1 => $2 }; |
403 |
dpavlin |
189 |
} else { |
404 |
dpavlin |
247 |
$response->{error}->{repl} = $repl; |
405 |
dpavlin |
174 |
} |
406 |
dpavlin |
166 |
Storable::store_fd( $response, $sock ); |
407 |
|
|
} elsif ( $data->{ping} ) { |
408 |
dpavlin |
174 |
my $port = $data->{port}; |
409 |
dpavlin |
275 |
delete( $info->{pending}->{$port} ) if defined $info->{pending}->{$port} && $info->{pending}->{$port} eq 'forked'; |
410 |
dpavlin |
274 |
$session->{port}->{$port} = $sock; |
411 |
|
|
foreach my $name ( keys %{$data->{proc}} ) { |
412 |
|
|
if ( $name eq 'loadavg' ) { |
413 |
|
|
$info->{proc}->{$port}->{loadavg} = [ split(/\s+/, $data->{proc}->{$name}) ]; |
414 |
|
|
} else { |
415 |
|
|
foreach my $line ( split(/\n/,$data->{proc}->{$name}) ) { |
416 |
|
|
my ($n,$v) = split(/:\s+/,$line); |
417 |
|
|
$info->{proc}->{$port}->{$n} = $v; |
418 |
|
|
} |
419 |
|
|
} |
420 |
|
|
} |
421 |
dpavlin |
232 |
} elsif ( defined $data->{load} && $data->{load} eq 'shard' ) { |
422 |
dpavlin |
221 |
if ( my $path = shift @shard_load_queue ) { |
423 |
|
|
$info->{shard}->{$path} = 'read'; |
424 |
dpavlin |
192 |
my $shard = Storable::retrieve $path; |
425 |
dpavlin |
221 |
$info->{shard}->{$path} = 'send'; |
426 |
dpavlin |
192 |
warn ">>>> [", $data->{port}, "] sending shard $path\n"; |
427 |
|
|
Storable::store_fd( { path => $path, shard => $shard }, $sock ); |
428 |
|
|
} else { |
429 |
|
|
warn "no more shards for [", $data->{port}, "]\n"; |
430 |
dpavlin |
263 |
delete $info->{pending}->{ $data->{port} }; |
431 |
dpavlin |
192 |
} |
432 |
dpavlin |
235 |
} elsif ( exists $data->{out} ) { |
433 |
|
|
my $added = Sack::Merge->add( $data->{out} ) if defined $data->{out}; |
434 |
|
|
$info->{merge}->{ $data->{view} }->{ $data->{port} } = $added; |
435 |
|
|
$info->{view }->{ $data->{view} }->{ $data->{port} } = $data->{on_shard}; |
436 |
dpavlin |
248 |
# refresh shard allocation |
437 |
|
|
$info->{shard}->{ $_ } = $data->{port} foreach keys %{ $data->{on_shard} }; |
438 |
dpavlin |
263 |
delete $info->{pending}->{ $data->{port} }; |
439 |
dpavlin |
247 |
} elsif ( exists $data->{port} ) { |
440 |
|
|
push @responses, $data; |
441 |
|
|
warn "# ",dump($data),$/; |
442 |
dpavlin |
192 |
} else { |
443 |
|
|
warn "UNKNOWN ",dump($data); |
444 |
dpavlin |
164 |
} |
445 |
dpavlin |
163 |
} |
446 |
|
|
} |
447 |
|
|
} |
448 |
|
|
} |