1 # Copyright (C) 2018 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
3 package PublicInbox::SearchIdxPart;
6 use base qw(PublicInbox::SearchIdx);
9 my ($class, $v2writable, $part) = @_;
10 my $self = $class->SUPER::new($v2writable->{-inbox}, 1, $part);
11 # create the DB before forking:
14 $self->{over} = $v2writable->{over};
15 $self->spawn_worker($v2writable, $part) if $v2writable->{parallel};
20 my ($self, $v2writable, $part) = @_;
22 pipe($r, $w) or die "pipe failed: $!\n";
26 defined $pid or die "fork failed: $!\n";
28 $v2writable->atfork_child;
30 close $w or die "failed to close: $!";
32 # F_SETPIPE_SZ = 1031 on Linux; increasing the pipe size here
33 # speeds V2Writable batch imports across 8 cores by nearly 20%
34 fcntl($r, 1031, 1048576) if $^O eq 'linux';
36 eval { partition_worker_loop($self, $r, $part) };
37 die "worker $part died: $@\n" if $@;
38 die "unexpected MM $self->{mm}" if $self->{mm};
43 close $r or die "failed to close: $!";
46 sub partition_worker_loop ($$$) {
47 my ($self, $r, $part) = @_;
48 $0 = "pi-v2-partition[$part]";
49 $self->begin_txn_lazy;
50 while (my $line = $r->getline) {
51 if ($line eq "commit\n") {
52 $self->commit_txn_lazy;
53 } elsif ($line eq "close\n") {
55 } elsif ($line eq "barrier\n") {
56 $self->commit_txn_lazy;
57 print { $self->{over}->{w} } "barrier $part\n" or
58 die "write failed to overview $!\n";
59 } elsif ($line =~ /\AD ([a-f0-9]{40,}) (.+)\n\z/s) {
60 my ($oid, $mid) = ($1, $2);
61 $self->begin_txn_lazy;
62 $self->remove_by_oid($oid, $mid);
65 my ($len, $artnum, $oid, $mid0) = split(/ /, $line);
66 $self->begin_txn_lazy;
67 my $n = read($r, my $msg, $len) or die "read: $!\n";
68 $n == $len or die "short read: $n != $len\n";
69 my $mime = PublicInbox::MIME->new(\$msg);
70 $artnum = int($artnum);
71 $self->add_message($mime, $n, $artnum, $oid, $mid0);
77 # called by V2Writable
79 my ($self, $bytes, $msgref, $artnum, $oid, $mid0, $mime) = @_;
80 if (my $w = $self->{w}) {
81 print $w "$bytes $artnum $oid $mid0\n", $$msgref or die
82 "failed to write partition $!\n";
83 $w->flush or die "failed to flush: $!\n";
86 $self->begin_txn_lazy;
87 $self->add_message($mime, $bytes, $artnum, $oid, $mid0);
92 close $_[0]->{w} or die "failed to close write pipe: $!\n";
95 # called by V2Writable:
98 if (my $w = $self->{w}) {
99 print $w "barrier\n" or die "failed to print: $!";
100 $w->flush or die "failed to flush: $!";
102 $self->commit_txn_lazy;