# Copyright (C) 2020-2021 all contributors
# License: AGPL-3.0+
# Detached/external index cross inbox search indexing support
# read-write counterpart to PublicInbox::ExtSearch
#
# It's based on the same ideas as public-inbox-v2-format(5) using
# over.sqlite3 for dedupe and sharded Xapian. msgmap.sqlite3 is
# missing, so there is no Message-ID conflict resolution, meaning
# no NNTP support for now.
#
# v2 has a 1:1 mapping of index:inbox or msgmap for NNTP support.
# This is intended to be an M:N index:inbox mapping, but it'll likely
# be 1:N in common practice (M==1)
package PublicInbox::ExtSearchIdx;
use strict;
use v5.10.1;
use parent qw(PublicInbox::ExtSearch PublicInbox::Lock);
use Carp qw(croak carp);
use Sys::Hostname qw(hostname);
use POSIX qw(strftime);
use File::Glob qw(bsd_glob GLOB_NOSORT);
use PublicInbox::MultiGit;
use PublicInbox::Search;
use PublicInbox::SearchIdx qw(prepare_stack is_ancestor is_bad_blob);
use PublicInbox::OverIdx;
use PublicInbox::MiscIdx;
use PublicInbox::MID qw(mids);
use PublicInbox::V2Writable;
use PublicInbox::InboxWritable;
use PublicInbox::ContentHash qw(content_hash);
use PublicInbox::Eml;
use PublicInbox::DS qw(now add_timer);
use DBI qw(:sql_types); # SQL_BLOB
sub new {
my (undef, $dir, $opt) = @_;
my $l = $opt->{indexlevel} // 'full';
$l !~ $PublicInbox::SearchIdx::INDEXLEVELS and
die "invalid indexlevel=$l\n";
$l eq 'basic' and die "E: indexlevel=basic not yet supported\n";
my $self = bless {
xpfx => "$dir/ei".PublicInbox::Search::SCHEMA_VERSION,
topdir => $dir,
creat => $opt->{creat},
ibx_map => {}, # (newsgroup//inboxdir) => $ibx
ibx_active => [], # by config section order
ibx_known => [], # by config section order
indexlevel => $l,
transact_bytes => 0,
total_bytes => 0,
current_info => '',
parallel => 1,
lock_path => "$dir/ei.lock",
}, __PACKAGE__;
$self->{shards} = $self->count_shards ||
nproc_shards({ nproc => $opt->{jobs} });
my $oidx = PublicInbox::OverIdx->new("$self->{xpfx}/over.sqlite3");
$self->{-no_fsync} = $oidx->{-no_fsync} = 1 if !$opt->{fsync};
$self->{oidx} = $oidx;
$self
}
sub attach_inbox {
my ($self, $ibx, $types) = @_;
$self->{ibx_map}->{$ibx->eidx_key} //= do {
delete $self->{-ibx_ary_known}; # invalidate cache
delete $self->{-ibx_ary_active}; # invalidate cache
$types //= [ qw(active known) ];
for my $t (@$types) {
push @{$self->{"ibx_$t"}}, $ibx;
}
$ibx;
}
}
sub _ibx_attach { # each_inbox callback
my ($ibx, $self, $types) = @_;
attach_inbox($self, $ibx, $types);
}
sub attach_config {
my ($self, $cfg, $ibxs) = @_;
$self->{cfg} = $cfg;
my $types;
if ($ibxs) {
for my $ibx (@$ibxs) {
$self->{ibx_map}->{$ibx->eidx_key} //= do {
push @{$self->{ibx_active}}, $ibx;
push @{$self->{ibx_known}}, $ibx;
$ibx;
}
}
# invalidate cache
delete $self->{-ibx_ary_known};
delete $self->{-ibx_ary_active};
$types = [ 'known' ];
}
$types //= [ qw(known active) ];
$cfg->each_inbox(\&_ibx_attach, $self, $types);
}
sub check_batch_limit ($) {
my ($req) = @_;
my $self = $req->{self};
my $new_smsg = $req->{new_smsg};
my $n = $self->{transact_bytes} += $new_smsg->{bytes};
# set flag for PublicInbox::V2Writable::index_todo:
${$req->{need_checkpoint}} = 1 if $n >= $self->{batch_bytes};
}
sub apply_boost ($$) {
my ($req, $smsg) = @_;
my $id2pos = $req->{id2pos}; # index in ibx_sorted
my $xr3 = $req->{self}->{oidx}->get_xref3($smsg->{num}, 1);
@$xr3 = sort {
$id2pos->{$a->[0]} <=> $id2pos->{$b->[0]}
||
$a->[1] <=> $b->[1] # break ties with {xnum}
} @$xr3;
my $new_smsg = $req->{new_smsg};
return if $xr3->[0]->[2] ne pack('H*', $new_smsg->{blob}); # loser
# replace the old smsg with the more boosted one
$new_smsg->{num} = $smsg->{num};
$new_smsg->populate($req->{eml}, $req);
$req->{self}->{oidx}->add_overview($req->{eml}, $new_smsg);
}
sub remove_doc ($$) {
my ($self, $docid) = @_;
$self->{oidx}->delete_by_num($docid);
$self->{oidx}->eidxq_del($docid);
$self->idx_shard($docid)->ipc_do('xdb_remove', $docid);
}
sub _unref_doc ($$$$$;$) {
my ($sync, $docid, $ibx, $xnum, $oidbin, $eml) = @_;
my $s = 'DELETE FROM xref3 WHERE ibx_id = ? AND oidbin = ?';
$s .= ' AND xnum = ?' if defined($xnum);
my $del = $sync->{self}->{oidx}->dbh->prepare_cached($s);
$del->bind_param(1, $ibx->{-ibx_id});
$del->bind_param(2, $oidbin, SQL_BLOB);
$del->bind_param(3, $xnum) if defined($xnum);
$del->execute;
my $xr3 = $sync->{self}->{oidx}->get_xref3($docid, 1);
if (scalar(@$xr3) == 0) { # all gone
remove_doc($sync->{self}, $docid);
} else { # enqueue for reindex of remaining messages
my $ekey = $ibx->{-gc_eidx_key} // $ibx->eidx_key;
my $idx = $sync->{self}->idx_shard($docid);
$idx->ipc_do('remove_eidx_info', $docid, $ekey, $eml);
$sync->{self}->{oidx}->eidxq_add($docid); # yes, add
}
@$xr3
}
sub do_xpost ($$) {
my ($req, $smsg) = @_;
my $self = $req->{self};
my $docid = $smsg->{num};
my $oid = $req->{oid};
my $xibx = $req->{ibx};
my $eml = $req->{eml};
if (my $new_smsg = $req->{new_smsg}) { # 'm' on cross-posted message
my $eidx_key = $xibx->eidx_key;
my $xnum = $req->{xnum};
$self->{oidx}->add_xref3($docid, $xnum, $oid, $eidx_key);
my $idx = $self->idx_shard($docid);
$idx->ipc_do('add_eidx_info', $docid, $eidx_key, $eml);
apply_boost($req, $smsg) if $req->{boost_in_use};
} else { # 'd' no {xnum}
$oid = pack('H*', $oid);
_unref_doc($req, $docid, $xibx, undef, $oid, $eml);
}
}
# called by V2Writable::sync_prepare
sub artnum_max { $_[0]->{oidx}->eidx_max }
sub index_unseen ($) {
my ($req) = @_;
my $new_smsg = $req->{new_smsg} or die 'BUG: {new_smsg} unset';
my $eml = delete $req->{eml};
$new_smsg->populate($eml, $req);
my $self = $req->{self};
my $docid = $self->{oidx}->adj_counter('eidx_docid', '+');
$new_smsg->{num} = $docid;
my $idx = $self->idx_shard($docid);
$self->{oidx}->add_overview($eml, $new_smsg);
my $oid = $new_smsg->{blob};
my $ibx = delete $req->{ibx} or die 'BUG: {ibx} unset';
$self->{oidx}->add_xref3($docid, $req->{xnum}, $oid, $ibx->eidx_key);
$idx->index_eml($eml, $new_smsg, $ibx->eidx_key);
check_batch_limit($req);
}
sub do_finalize ($) {
my ($req) = @_;
if (my $indexed = $req->{indexed}) { # duplicated messages
do_xpost($req, $_) for @$indexed;
} elsif (exists $req->{new_smsg}) { # totally unseen messsage
index_unseen($req);
} else {
# `d' message was already unindexed in the v1/v2 inboxes,
# so it's too noisy to warn, here.
}
# cur_cmt may be undef for unindex_oid, set by V2Writable::index_todo
if (defined(my $cur_cmt = $req->{cur_cmt})) {
${$req->{latest_cmt}} = $cur_cmt;
}
}
sub do_step ($) { # main iterator for adding messages to the index
my ($req) = @_;
my $self = $req->{self} // die 'BUG: {self} missing';
while (1) {
if (my $next_arg = $req->{next_arg}) {
if (my $smsg = $self->{oidx}->next_by_mid(@$next_arg)) {
$req->{cur_smsg} = $smsg;
$self->git->cat_async($smsg->{blob},
\&ck_existing, $req);
return; # ck_existing calls do_step
}
delete $req->{next_arg};
}
die "BUG: {cur_smsg} still set" if $req->{cur_smsg};
my $mid = shift(@{$req->{mids}}) // last;
my ($id, $prev);
$req->{next_arg} = [ $mid, \$id, \$prev ];
# loop again
}
do_finalize($req);
}
sub _blob_missing ($$) { # called when $smsg->{blob} is bad
my ($req, $smsg) = @_;
my $self = $req->{self};
my $xref3 = $self->{oidx}->get_xref3($smsg->{num});
my @keep = grep(!/:$smsg->{blob}\z/, @$xref3);
if (@keep) {
warn "E: $smsg->{blob} gone, removing #$smsg->{num}\n";
$keep[0] =~ /:([a-f0-9]{40,}+)\z/ or
die "BUG: xref $keep[0] has no OID";
my $oidhex = $1;
$self->{oidx}->remove_xref3($smsg->{num}, $smsg->{blob});
$self->{oidx}->update_blob($smsg, $oidhex) or warn <{num} gone ($smsg->{blob} => $oidhex)
EOM
} else {
warn "E: $smsg->{blob} gone, removing #$smsg->{num}\n";
remove_doc($self, $smsg->{num});
}
}
sub ck_existing { # git->cat_async callback
my ($bref, $oid, $type, $size, $req) = @_;
my $smsg = delete $req->{cur_smsg} or die 'BUG: {cur_smsg} missing';
if ($type eq 'missing') {
_blob_missing($req, $smsg);
} elsif (!is_bad_blob($oid, $type, $size, $smsg->{blob})) {
my $self = $req->{self} // die 'BUG: {self} missing';
local $self->{current_info} = "$self->{current_info} $oid";
my $cur = PublicInbox::Eml->new($bref);
if (content_hash($cur) eq $req->{chash}) {
push @{$req->{indexed}}, $smsg; # for do_xpost
} # else { index_unseen later }
}
do_step($req);
}
# is the messages visible in the inbox currently being indexed?
# return the number if so
sub cur_ibx_xnum ($$) {
my ($req, $bref) = @_;
my $ibx = $req->{ibx} or die 'BUG: current {ibx} missing';
$req->{eml} = PublicInbox::Eml->new($bref);
$req->{chash} = content_hash($req->{eml});
$req->{mids} = mids($req->{eml});
for my $mid (@{$req->{mids}}) {
my ($id, $prev);
while (my $x = $ibx->over->next_by_mid($mid, \$id, \$prev)) {
return $x->{num} if $x->{blob} eq $req->{oid};
}
}
undef;
}
sub index_oid { # git->cat_async callback for 'm'
my ($bref, $oid, $type, $size, $req) = @_;
my $self = $req->{self};
local $self->{current_info} = "$self->{current_info} $oid";
return if is_bad_blob($oid, $type, $size, $req->{oid});
my $new_smsg = $req->{new_smsg} = bless {
blob => $oid,
}, 'PublicInbox::Smsg';
$new_smsg->set_bytes($$bref, $size);
defined($req->{xnum} = cur_ibx_xnum($req, $bref)) or return;
++${$req->{nr}};
do_step($req);
}
sub unindex_oid { # git->cat_async callback for 'd'
my ($bref, $oid, $type, $size, $req) = @_;
my $self = $req->{self};
local $self->{current_info} = "$self->{current_info} $oid";
return if is_bad_blob($oid, $type, $size, $req->{oid});
return if defined(cur_ibx_xnum($req, $bref)); # was re-added
do_step($req);
}
# overrides V2Writable::last_commits, called by sync_ranges via sync_prepare
sub last_commits {
my ($self, $sync) = @_;
my $heads = [];
my $ekey = $sync->{ibx}->eidx_key;
my $uv = $sync->{ibx}->uidvalidity;
for my $i (0..$sync->{epoch_max}) {
$heads->[$i] = $self->{oidx}->eidx_meta("lc-v2:$ekey//$uv;$i");
}
$heads;
}
sub _ibx_index_reject ($) {
my ($ibx) = @_;
$ibx->mm // return 'unindexed, no msgmap.sqlite3';
$ibx->uidvalidity // return 'no UIDVALIDITY';
$ibx->over // return 'unindexed, no over.sqlite3';
undef;
}
sub _sync_inbox ($$$) {
my ($self, $sync, $ibx) = @_;
my $ekey = $ibx->eidx_key;
if (defined(my $err = _ibx_index_reject($ibx))) {
return "W: skipping $ekey ($err)";
}
$sync->{ibx} = $ibx;
$sync->{nr} = \(my $nr = 0);
my $v = $ibx->version;
if ($v == 2) {
$sync->{epoch_max} = $ibx->max_git_epoch // return;
sync_prepare($self, $sync); # or return # TODO: once MiscIdx is stable
} elsif ($v == 1) {
my $uv = $ibx->uidvalidity;
my $lc = $self->{oidx}->eidx_meta("lc-v1:$ekey//$uv");
my $head = $ibx->mm->last_commit //
return "E: $ibx->{inboxdir} is not indexed";
my $stk = prepare_stack($sync, $lc ? "$lc..$head" : $head);
my $unit = { stack => $stk, git => $ibx->git };
push @{$sync->{todo}}, $unit;
} else {
return "E: $ekey unsupported inbox version (v$v)";
}
for my $unit (@{delete($sync->{todo}) // []}) {
last if $sync->{quit};
index_todo($self, $sync, $unit);
}
$self->{midx}->index_ibx($ibx) unless $sync->{quit};
$ibx->git->cleanup; # done with this inbox, now
undef;
}
sub eidx_gc_scan_inboxes ($$) {
my ($self, $sync) = @_;
my ($x3_doc, $ibx_ck);
restart:
$x3_doc = $self->{oidx}->dbh->prepare(<{oidx}->dbh->prepare(<execute;
while (my ($ibx_id, $eidx_key) = $ibx_ck->fetchrow_array) {
next if $self->{ibx_map}->{$eidx_key};
$self->{midx}->remove_eidx_key($eidx_key);
warn "I: deleting messages for $eidx_key...\n";
$x3_doc->execute($ibx_id);
my $ibx = { -ibx_id => $ibx_id, -gc_eidx_key => $eidx_key };
while (my ($docid, $xnum, $oid) = $x3_doc->fetchrow_array) {
my $r = _unref_doc($sync, $docid, $ibx, $xnum, $oid);
$oid = unpack('H*', $oid);
$r = $r ? 'unref' : 'remove';
warn "I: $r #$docid $eidx_key $oid\n";
if (checkpoint_due($sync)) {
$x3_doc = $ibx_ck = undef;
reindex_checkpoint($self, $sync);
goto restart;
}
}
$self->{oidx}->dbh->do(<<'', undef, $ibx_id);
DELETE FROM inboxes WHERE ibx_id = ?
# drop last_commit info
my $pat = $eidx_key;
$pat =~ s/([_%\\])/\\$1/g;
$self->{oidx}->dbh->do('PRAGMA case_sensitive_like = ON');
my $lc_i = $self->{oidx}->dbh->prepare(<<'');
SELECT key FROM eidx_meta WHERE key LIKE ? ESCAPE ?
$lc_i->execute("lc-%:$pat//%", '\\');
while (my ($key) = $lc_i->fetchrow_array) {
next if $key !~ m!\Alc-v[1-9]+:\Q$eidx_key\E//!;
warn "I: removing $key\n";
$self->{oidx}->dbh->do(<<'', undef, $key);
DELETE FROM eidx_meta WHERE key = ?
}
warn "I: $eidx_key removed\n";
}
}
sub eidx_gc_scan_shards ($$) { # TODO: use for lei/store
my ($self, $sync) = @_;
my $nr = $self->{oidx}->dbh->do(<<'');
DELETE FROM xref3 WHERE docid NOT IN (SELECT num FROM over)
warn "I: eliminated $nr stale xref3 entries\n" if $nr != 0;
reindex_checkpoint($self, $sync) if checkpoint_due($sync);
# fixup from old bugs:
$nr = $self->{oidx}->dbh->do(<<'');
DELETE FROM over WHERE num > 0 AND num NOT IN (SELECT docid FROM xref3)
warn "I: eliminated $nr stale over entries\n" if $nr != 0;
reindex_checkpoint($self, $sync) if checkpoint_due($sync);
$nr = $self->{oidx}->dbh->do(<<'');
DELETE FROM eidxq WHERE docid NOT IN (SELECT num FROM over)
warn "I: eliminated $nr stale reindex queue entries\n" if $nr != 0;
reindex_checkpoint($self, $sync) if checkpoint_due($sync);
my ($cur) = $self->{oidx}->dbh->selectrow_array(< 0
EOM
$cur // return; # empty
my ($r, $n, %active_shards);
$nr = 0;
while (1) {
$r = $self->{oidx}->dbh->selectcol_arrayref(<<"", undef, $cur);
SELECT num FROM over WHERE num >= ? ORDER BY num ASC LIMIT 10000
last unless scalar(@$r);
while (defined($n = shift @$r)) {
for my $i ($cur..($n - 1)) {
my $idx = idx_shard($self, $i);
$idx->ipc_do('xdb_remove_quiet', $i);
$active_shards{$idx} = $idx;
}
$cur = $n + 1;
}
if (checkpoint_due($sync)) {
for my $idx (values %active_shards) {
$nr += $idx->ipc_do('nr_quiet_rm')
}
%active_shards = ();
reindex_checkpoint($self, $sync);
}
}
warn "I: eliminated $nr stale Xapian documents\n" if $nr != 0;
}
sub eidx_gc {
my ($self, $opt) = @_;
$self->{cfg} or die "E: GC requires ->attach_config\n";
$opt->{-idx_gc} = 1;
my $sync = {
need_checkpoint => \(my $need_checkpoint = 0),
check_intvl => 10,
next_check => now() + 10,
checkpoint_unlocks => 1,
-opt => $opt,
self => $self,
};
$self->idx_init($opt); # acquire lock via V2Writable::_idx_init
eidx_gc_scan_inboxes($self, $sync);
eidx_gc_scan_shards($self, $sync);
done($self);
}
sub _ibx_for ($$$) {
my ($self, $sync, $smsg) = @_;
my $ibx_id = delete($smsg->{ibx_id}) // die '{ibx_id} unset';
my $pos = $sync->{id2pos}->{$ibx_id} // die "$ibx_id no pos";
$self->{-ibx_ary_known}->[$pos] //
die "BUG: ibx for $smsg->{blob} not mapped"
}
sub _fd_constrained ($) {
my ($self) = @_;
$self->{-fd_constrained} //= do {
my $soft;
if (eval { require BSD::Resource; 1 }) {
my $NOFILE = BSD::Resource::RLIMIT_NOFILE();
($soft, undef) = BSD::Resource::getrlimit($NOFILE);
} else {
chomp($soft = `sh -c 'ulimit -n'`);
}
if (defined($soft)) {
# $want is an estimate
my $want = scalar(@{$self->{ibx_active}}) + 64;
my $ret = $want > $soft;
if ($ret) {
warn <{sync};
my $self = $sync->{self};
my $by_chash = delete $req->{by_chash} or die 'BUG: no {by_chash}';
my $nr = scalar(keys(%$by_chash)) or die 'BUG: no content hashes';
my $orig_smsg = $req->{orig_smsg} // die 'BUG: no {orig_smsg}';
my $docid = $smsg->{num} = $orig_smsg->{num};
$self->{oidx}->add_overview($eml, $smsg); # may rethread
check_batch_limit({ %$sync, new_smsg => $smsg });
my $chash0 = $smsg->{chash} // die "BUG: $smsg->{blob} no {chash}";
my $stable = delete($by_chash->{$chash0}) //
die "BUG: $smsg->{blob} chash missing";
my $idx = $self->idx_shard($docid);
my $top_smsg = pop @$stable;
$top_smsg == $smsg or die 'BUG: top_smsg != smsg';
my $ibx = _ibx_for($self, $sync, $smsg);
$idx->index_eml($eml, $smsg, $ibx->eidx_key);
for my $x (reverse @$stable) {
$ibx = _ibx_for($self, $sync, $x);
my $hdr = delete $x->{hdr} // die 'BUG: no {hdr}';
$idx->ipc_do('add_eidx_info', $docid, $ibx->eidx_key, $hdr);
}
return if $nr == 1; # likely, all good
warn "W: #$docid split into $nr due to deduplication change\n";
my @todo;
for my $ary (values %$by_chash) {
for my $x (reverse @$ary) {
warn "removing #$docid xref3 $x->{blob}\n";
my $n = $self->{oidx}->remove_xref3($docid, $x->{blob});
die "BUG: $x->{blob} invalidated #$docid" if $n == 0;
}
my $x = pop(@$ary) // die "BUG: #$docid {by_chash} empty";
$x->{num} = delete($x->{xnum}) // die '{xnum} unset';
$ibx = _ibx_for($self, $sync, $x);
if (my $over = $ibx->over) {
my $e = $over->get_art($x->{num});
$e->{blob} eq $x->{blob} or die <{blob} != $e->{blob} (${\$ibx->eidx_key}:$e->{num});
EOF
push @todo, $ibx, $e;
$over->dbh_close if _fd_constrained($self);
} else {
die "$ibx->{inboxdir}: over.sqlite3 unusable: $!\n";
}
}
undef $by_chash;
while (my ($ibx, $e) = splice(@todo, 0, 2)) {
reindex_unseen($self, $sync, $ibx, $e);
}
}
sub _reindex_oid { # git->cat_async callback
my ($bref, $oid, $type, $size, $req) = @_;
my $sync = $req->{sync};
my $self = $sync->{self};
my $orig_smsg = $req->{orig_smsg} // die 'BUG: no {orig_smsg}';
my $expect_oid = $req->{xr3r}->[$req->{ix}]->[2];
my $docid = $orig_smsg->{num};
if (is_bad_blob($oid, $type, $size, $expect_oid)) {
my $remain = $self->{oidx}->remove_xref3($docid, $expect_oid);
if ($remain == 0) {
warn "W: #$docid gone or corrupted\n";
remove_doc($self, $docid);
} elsif (my $next_oid = $req->{xr3r}->[++$req->{ix}]->[2]) {
# n.b. we can't remove_eidx_info here
$self->git->cat_async($next_oid, \&_reindex_oid, $req);
} else {
warn "BUG: #$docid gone (UNEXPECTED)\n";
remove_doc($self, $docid);
}
return;
}
my $ci = $self->{current_info};
local $self->{current_info} = "$ci #$docid $oid";
my $re_smsg = bless { blob => $oid }, 'PublicInbox::Smsg';
$re_smsg->set_bytes($$bref, $size);
my $eml = PublicInbox::Eml->new($bref);
$re_smsg->populate($eml, { autime => $orig_smsg->{ds},
cotime => $orig_smsg->{ts} });
my $chash = content_hash($eml);
$re_smsg->{chash} = $chash;
$re_smsg->{xnum} = $req->{xr3r}->[$req->{ix}]->[1];
$re_smsg->{ibx_id} = $req->{xr3r}->[$req->{ix}]->[0];
$re_smsg->{hdr} = $eml->header_obj;
push @{$req->{by_chash}->{$chash}}, $re_smsg;
if (my $next_oid = $req->{xr3r}->[++$req->{ix}]->[2]) {
$self->git->cat_async($next_oid, \&_reindex_oid, $req);
} else { # last $re_smsg is the highest priority xref3
local $self->{current_info} = "$ci #$docid";
_reindex_finalize($req, $re_smsg, $eml);
}
}
sub _reindex_smsg ($$$) {
my ($self, $sync, $smsg) = @_;
my $docid = $smsg->{num};
my $xr3 = $self->{oidx}->get_xref3($docid, 1);
if (scalar(@$xr3) == 0) { # _reindex_check_stale should've covered this
warn <<"";
BUG? #$docid $smsg->{blob} is not referenced by inboxes during reindex
remove_doc($self, $docid);
return;
}
# we sort {xr3r} in the reverse order of ibx_sorted so we can
# hit the common case in _reindex_finalize without rereading
# from git (or holding multiple messages in memory).
my $id2pos = $sync->{id2pos}; # index in ibx_sorted
@$xr3 = sort {
$id2pos->{$b->[0]} <=> $id2pos->{$a->[0]}
||
$b->[1] <=> $a->[1] # break ties with {xnum}
} @$xr3;
@$xr3 = map { [ $_->[0], $_->[1], unpack('H*', $_->[2]) ] } @$xr3;
my $req = { orig_smsg => $smsg, sync => $sync, xr3r => $xr3, ix => 0 };
$self->git->cat_async($xr3->[$req->{ix}]->[2], \&_reindex_oid, $req);
}
sub checkpoint_due ($) {
my ($sync) = @_;
${$sync->{need_checkpoint}} || (now() > $sync->{next_check});
}
sub host_ident () {
# I've copied FS images and only changed the hostname before,
# so prepend hostname. Use `state' since these a BOFH can change
# these while this process is running and we always want to be
# able to release locks taken by this process.
state $retval = hostname . '-' . do {
my $m; # machine-id(5) is systemd
if (open(my $fh, '<', '/etc/machine-id')) { $m = <$fh> }
# (g)hostid(1) is in GNU coreutils, kern.hostid is most BSDs
chomp($m ||= `{ sysctl -n kern.hostid ||
hostid || ghostid; } 2>/dev/null`
|| "no-machine-id-or-hostid-on-$^O");
$m;
};
}
sub eidxq_release {
my ($self) = @_;
my $expect = delete($self->{-eidxq_locked}) or return;
my ($owner_pid, undef) = split(/-/, $expect);
return if $owner_pid != $$; # shards may fork
my $oidx = $self->{oidx};
$oidx->begin_lazy;
my $cur = $oidx->eidx_meta('eidxq_lock') // '';
if ($cur eq $expect) {
$oidx->eidx_meta('eidxq_lock', '');
return 1;
} elsif ($cur ne '') {
warn "E: eidxq_lock($expect) stolen by $cur\n";
} else {
warn "E: eidxq_lock($expect) released by another process\n";
}
undef;
}
sub DESTROY {
my ($self) = @_;
eidxq_release($self) and $self->{oidx}->commit_lazy;
}
sub _eidxq_take ($) {
my ($self) = @_;
my $val = "$$-${\time}-$>-".host_ident;
$self->{oidx}->eidx_meta('eidxq_lock', $val);
$self->{-eidxq_locked} = $val;
}
sub eidxq_lock_acquire ($) {
my ($self) = @_;
my $oidx = $self->{oidx};
$oidx->begin_lazy;
my $cur = $oidx->eidx_meta('eidxq_lock') || return _eidxq_take($self);
if (my $locked = $self->{-eidxq_locked}) { # be lazy
return $locked if $locked eq $cur;
}
my ($pid, $time, $euid, $ident) = split(/-/, $cur, 4);
my $t = strftime('%Y-%m-%d %k:%M:%S', gmtime($time));
if ($euid == $> && $ident eq host_ident) {
if (kill(0, $pid)) {
warn <dbh->sqlite_db_filename;
warn <{"-ibx_ary_$type"} //= do {
# highest boost first, stable for config-ordering tiebreaker
use sort 'stable';
[ sort {
($b->{boost} // 0) <=> ($a->{boost} // 0)
} @{$self->{'ibx_'.$type} // die "BUG: $type unknown"} ];
}
}
sub prep_id2pos ($) {
my ($self) = @_;
my %id2pos;
my $pos = 0;
$id2pos{$_->{-ibx_id}} = $pos++ for (@{ibx_sorted($self, 'known')});
\%id2pos;
}
sub eidxq_process ($$) { # for reindexing
my ($self, $sync) = @_;
return unless $self->{cfg};
return unless eidxq_lock_acquire($self);
my $dbh = $self->{oidx}->dbh;
my $tot = $dbh->selectrow_array('SELECT COUNT(*) FROM eidxq') or return;
${$sync->{nr}} = 0;
local $sync->{-regen_fmt} = "%u/$tot\n";
my $pr = $sync->{-opt}->{-progress};
if ($pr) {
my $min = $dbh->selectrow_array('SELECT MIN(docid) FROM eidxq');
my $max = $dbh->selectrow_array('SELECT MAX(docid) FROM eidxq');
$pr->("Xapian indexing $min..$max (total=$tot)\n");
}
$sync->{id2pos} //= prep_id2pos($self);
my ($del, $iter);
restart:
$del = $dbh->prepare('DELETE FROM eidxq WHERE docid = ?');
$iter = $dbh->prepare('SELECT docid FROM eidxq ORDER BY docid ASC');
$iter->execute;
while (defined(my $docid = $iter->fetchrow_array)) {
last if $sync->{quit};
if (my $smsg = $self->{oidx}->get_art($docid)) {
_reindex_smsg($self, $sync, $smsg);
} else {
warn "E: #$docid does not exist in over\n";
}
$del->execute($docid);
++${$sync->{nr}};
if (checkpoint_due($sync)) {
$dbh = $del = $iter = undef;
reindex_checkpoint($self, $sync); # release lock
$dbh = $self->{oidx}->dbh;
goto restart;
}
}
$self->git->async_wait_all;
$pr->("reindexed ${$sync->{nr}}/$tot\n") if $pr;
}
sub _reindex_unseen { # git->cat_async callback
my ($bref, $oid, $type, $size, $req) = @_;
return if is_bad_blob($oid, $type, $size, $req->{oid});
my $self = $req->{self} // die 'BUG: {self} unset';
local $self->{current_info} = "$self->{current_info} $oid";
my $new_smsg = bless { blob => $oid, }, 'PublicInbox::Smsg';
$new_smsg->set_bytes($$bref, $size);
my $eml = $req->{eml} = PublicInbox::Eml->new($bref);
$req->{new_smsg} = $new_smsg;
$req->{chash} = content_hash($eml);
$req->{mids} = mids($eml); # do_step iterates through this
do_step($req); # enter the normal indexing flow
}
# --reindex may catch totally unseen messages, this handles them
sub reindex_unseen ($$$$) {
my ($self, $sync, $ibx, $xsmsg) = @_;
my $req = {
%$sync, # has {self}
autime => $xsmsg->{ds},
cotime => $xsmsg->{ts},
oid => $xsmsg->{blob},
ibx => $ibx,
xnum => $xsmsg->{num},
# {mids} and {chash} will be filled in at _reindex_unseen
};
warn "I: reindex_unseen ${\$ibx->eidx_key}:$req->{xnum}:$req->{oid}\n";
$self->git->cat_async($xsmsg->{blob}, \&_reindex_unseen, $req);
}
sub _unref_stale_range ($$$) {
my ($sync, $ibx, $lt_or_gt) = @_;
my $r;
my $lim = 10000;
do {
$r = $sync->{self}->{oidx}->dbh->selectall_arrayref(
<{-ibx_id});
SELECT docid,xnum,oidbin FROM xref3
WHERE ibx_id = ? AND xnum $lt_or_gt LIMIT $lim
EOS
return if $sync->{quit};
for (@$r) { # hopefully rare, not worth optimizing:
my ($docid, $xnum, $oidbin) = @$_;
my $hex = unpack('H*', $oidbin);
warn("# $xnum:$hex (#$docid): stale\n");
_unref_doc($sync, $docid, $ibx, $xnum, $oidbin);
}
} while (scalar(@$r) == $lim);
1;
}
sub _reindex_check_ibx ($$$) {
my ($self, $sync, $ibx) = @_;
my $ibx_id = $ibx->{-ibx_id};
my $slice = 10000;
my $opt = { limit => $slice };
my ($beg, $end) = (1, $slice);
my $err = sync_inbox($self, $sync, $ibx) and return;
my $max = $ibx->over->max;
$end = $max if $end > $max;
# first, check if we missed any messages in target $ibx
my $msgs;
my $pr = $sync->{-opt}->{-progress};
my $ekey = $ibx->eidx_key;
local $sync->{-regen_fmt} = "$ekey checking %u/$max\n";
${$sync->{nr}} = 0;
my $fast = $sync->{-opt}->{fast};
my $dsu; # _unref_stale_range (< $lo) called
my ($lo, $hi);
while (scalar(@{$msgs = $ibx->over->query_xover($beg, $end, $opt)})) {
${$sync->{nr}} = $beg;
$beg = $msgs->[-1]->{num} + 1;
$end = $beg + $slice;
$end = $max if $end > $max;
if (checkpoint_due($sync)) {
reindex_checkpoint($self, $sync); # release lock
}
($lo, $hi) = ($msgs->[0]->{num}, $msgs->[-1]->{num});
$dsu //= _unref_stale_range($sync, $ibx, "< $lo");
my $x3a = $self->{oidx}->dbh->selectall_arrayref(
<<"", undef, $ibx_id, $lo, $hi);
SELECT xnum,oidbin,docid FROM xref3 WHERE
ibx_id = ? AND xnum >= ? AND xnum <= ?
my %x3m;
for (@$x3a) {
my $k = pack('J', $_->[0]) . $_->[1];
push @{$x3m{$k}}, $_->[2];
}
undef $x3a;
for my $xsmsg (@$msgs) {
my $k = pack('JH*', $xsmsg->{num}, $xsmsg->{blob});
my $docids = delete($x3m{$k});
if (!defined($docids)) {
reindex_unseen($self, $sync, $ibx, $xsmsg);
} elsif (!$fast) {
for my $num (@$docids) {
$self->{oidx}->eidxq_add($num);
}
return if $sync->{quit};
}
}
return if $sync->{quit};
next unless scalar keys %x3m;
# eliminate stale/mismatched entries
my %mismatch = map { $_->{num} => $_->{blob} } @$msgs;
while (my ($k, $docids) = each %x3m) {
my ($xnum, $hex) = unpack('JH*', $k);
my $bin = pack('H*', $hex);
my $exp = $mismatch{$xnum};
my $m = defined($exp) ? "mismatch (!= $exp)" : 'stale';
warn("# $xnum:$hex (#@$docids): $m\n");
for my $i (@$docids) {
_unref_doc($sync, $i, $ibx, $xnum, $bin);
}
}
}
_unref_stale_range($sync, $ibx, "> $hi") if defined($hi);
}
sub _reindex_inbox ($$$) {
my ($self, $sync, $ibx) = @_;
my $ekey = $ibx->eidx_key;
local $self->{current_info} = $ekey;
if (defined(my $err = _ibx_index_reject($ibx))) {
warn "W: cannot reindex $ekey ($err)\n";
} else {
_reindex_check_ibx($self, $sync, $ibx);
}
delete @$ibx{qw(over mm search git)}; # won't need these for a bit
}
sub eidx_reindex {
my ($self, $sync) = @_;
return unless $self->{cfg};
# acquire eidxq_lock early because full reindex takes forever
# and incremental -extindex processes can run during our checkpoints
if (!eidxq_lock_acquire($self)) {
warn "E: aborting --reindex\n";
return;
}
for my $ibx (@{ibx_sorted($self, 'active')}) {
_reindex_inbox($self, $sync, $ibx);
last if $sync->{quit};
}
$self->git->async_wait_all; # ensure eidxq gets filled completely
eidxq_process($self, $sync) unless $sync->{quit};
}
sub sync_inbox {
my ($self, $sync, $ibx) = @_;
my $err = _sync_inbox($self, $sync, $ibx);
delete @$ibx{qw(mm over)};
warn $err, "\n" if defined($err);
$err;
}
sub dd_smsg { # git->cat_async callback
my ($bref, $oid, $type, $size, $dd) = @_;
my $smsg = $dd->{smsg} // die 'BUG: dd->{smsg} missing';
my $self = $dd->{self} // die 'BUG: {self} missing';
my $per_mid = $dd->{per_mid} // die 'BUG: {per_mid} missing';
if ($type eq 'missing') {
_blob_missing($dd, $smsg);
} elsif (!is_bad_blob($oid, $type, $size, $smsg->{blob})) {
local $self->{current_info} = "$self->{current_info} $oid";
my $chash = content_hash(PublicInbox::Eml->new($bref));
push(@{$per_mid->{dd_chash}->{$chash}}, $smsg);
}
return if $per_mid->{last_smsg} != $smsg;
while (my ($chash, $ary) = each %{$per_mid->{dd_chash}}) {
my $keep = shift @$ary;
next if !scalar(@$ary);
$per_mid->{sync}->{dedupe_cull} += scalar(@$ary);
print STDERR
"# <$keep->{mid}> keeping #$keep->{num}, dropping ",
join(', ', map { "#$_->{num}" } @$ary),"\n";
next if $per_mid->{sync}->{-opt}->{'dry-run'};
my $oidx = $self->{oidx};
for my $smsg (@$ary) {
my $gone = $smsg->{num};
$oidx->merge_xref3($keep->{num}, $gone, $smsg->{blob});
remove_doc($self, $gone);
}
}
}
sub eidx_dedupe ($$$) {
my ($self, $sync, $msgids) = @_;
$sync->{dedupe_cull} = 0;
my $candidates = 0;
my $nr_mid = 0;
return unless eidxq_lock_acquire($self);
my ($iter, $cur_mid);
my $min_id = 0;
my $idx = 0;
my ($max_id) = $self->{oidx}->dbh->selectrow_array(<{-regen_fmt} = "dedupe %u/$max_id\n";
# note: we could write this query more intelligently,
# but that causes lock contention with read-only processes
dedupe_restart:
$cur_mid = $msgids->[$idx];
if ($cur_mid eq '') { # all Message-IDs
$iter = $self->{oidx}->dbh->prepare(< ? ORDER BY id ASC
EOS
$iter->execute($min_id);
} else {
$iter = $self->{oidx}->dbh->prepare(< ? ORDER BY id ASC
EOS
$iter->execute($cur_mid, $min_id);
}
while (my ($mid, $id) = $iter->fetchrow_array) {
last if $sync->{quit};
$self->{current_info} = "dedupe $mid";
${$sync->{nr}} = $min_id = $id;
my ($prv, @smsg);
while (my $x = $self->{oidx}->next_by_mid($mid, \$id, \$prv)) {
push @smsg, $x;
}
next if scalar(@smsg) < 2;
my $per_mid = {
dd_chash => {}, # chash => [ary of smsgs]
last_smsg => $smsg[-1],
sync => $sync
};
$nr_mid++;
$candidates += scalar(@smsg) - 1;
for my $smsg (@smsg) {
my $dd = {
per_mid => $per_mid,
smsg => $smsg,
self => $self,
};
$self->git->cat_async($smsg->{blob}, \&dd_smsg, $dd);
}
# need to wait on every single one @smsg contents can get
# invalidated inside dd_smsg for messages with multiple
# Message-IDs.
$self->git->async_wait_all;
if (checkpoint_due($sync)) {
undef $iter;
reindex_checkpoint($self, $sync);
goto dedupe_restart;
}
}
goto dedupe_restart if defined($msgids->[++$idx]);
my $n = delete $sync->{dedupe_cull};
if (my $pr = $sync->{-opt}->{-progress}) {
$pr->("culled $n/$candidates candidates ($nr_mid msgids)\n");
}
${$sync->{nr}} = 0;
}
sub eidx_sync { # main entry point
my ($self, $opt) = @_;
my $warn_cb = $SIG{__WARN__} || \&CORE::warn;
local $self->{current_info} = '';
local $SIG{__WARN__} = sub {
return if PublicInbox::Eml::warn_ignore(@_);
$warn_cb->($self->{current_info}, ': ', @_);
};
$self->idx_init($opt); # acquire lock via V2Writable::_idx_init
$self->{oidx}->rethread_prepare($opt);
my $sync = {
need_checkpoint => \(my $need_checkpoint = 0),
check_intvl => 10,
next_check => now() + 10,
-opt => $opt,
# DO NOT SET {reindex} here, it's incompatible with reused
# V2Writable code, reindex is totally different here
# compared to v1/v2 inboxes because we have multiple histories
self => $self,
-regen_fmt => "%u/?\n",
};
local $SIG{USR1} = sub { $need_checkpoint = 1 };
my $quit = PublicInbox::SearchIdx::quit_cb($sync);
local $SIG{QUIT} = $quit;
local $SIG{INT} = $quit;
local $SIG{TERM} = $quit;
for my $ibx (@{ibx_sorted($self, 'known')}) {
$ibx->{-ibx_id} //= $self->{oidx}->ibx_id($ibx->eidx_key);
}
if (scalar(grep { defined($_->{boost}) } @{$self->{ibx_known}})) {
$sync->{id2pos} //= prep_id2pos($self);
$sync->{boost_in_use} = 1;
}
if (my $msgids = delete($opt->{dedupe})) {
local $sync->{checkpoint_unlocks} = 1;
eidx_dedupe($self, $sync, $msgids);
}
if (delete($opt->{reindex})) {
local $sync->{checkpoint_unlocks} = 1;
eidx_reindex($self, $sync);
}
# don't use $_ here, it'll get clobbered by reindex_checkpoint
if ($opt->{scan} // 1) {
for my $ibx (@{ibx_sorted($self, 'active')}) {
last if $sync->{quit};
sync_inbox($self, $sync, $ibx);
}
}
$self->{oidx}->rethread_done($opt) unless $sync->{quit};
eidxq_process($self, $sync) unless $sync->{quit};
eidxq_release($self);
done($self);
$sync; # for eidx_watch
}
sub update_last_commit { # overrides V2Writable
my ($self, $sync, $stk) = @_;
my $unit = $sync->{unit} // return;
my $latest_cmt = $stk ? $stk->{latest_cmt} : ${$sync->{latest_cmt}};
defined($latest_cmt) or return;
my $ibx = $sync->{ibx} or die 'BUG: {ibx} missing';
my $ekey = $ibx->eidx_key;
my $uv = $ibx->uidvalidity;
my $epoch = $unit->{epoch};
my $meta_key;
my $v = $ibx->version;
if ($v == 2) {
die 'No {epoch} for v2 unit' unless defined $epoch;
$meta_key = "lc-v2:$ekey//$uv;$epoch";
} elsif ($v == 1) {
die 'Unexpected {epoch} for v1 unit' if defined $epoch;
$meta_key = "lc-v1:$ekey//$uv";
} else {
die "Unsupported inbox version: $v";
}
my $last = $self->{oidx}->eidx_meta($meta_key);
if (defined $last && is_ancestor($self->git, $last, $latest_cmt)) {
my @cmd = (qw(rev-list --count), "$last..$latest_cmt");
chomp(my $n = $unit->{git}->qx(@cmd));
return if $n ne '' && $n == 0;
}
$self->{oidx}->eidx_meta($meta_key, $latest_cmt);
}
sub _idx_init { # with_umask callback
my ($self, $opt) = @_;
PublicInbox::V2Writable::_idx_init($self, $opt); # acquires ei.lock
$self->{midx} = PublicInbox::MiscIdx->new($self);
}
sub symlink_packs ($$) {
my ($ibx, $pd) = @_;
my $ret = 0;
my $glob = "$ibx->{inboxdir}/git/*.git/objects/pack/*.idx";
for my $idx (bsd_glob($glob, GLOB_NOSORT)) {
my $src = substr($idx, 0, -length('.idx'));
my $dst = $pd . substr($src, rindex($src, '/'));
if (-f "$src.pack" and
symlink("$src.pack", "$dst.pack") and
symlink($idx, "$dst.idx") and
-f $idx) {
++$ret;
# .promisor, .bitmap, .rev and .keep are optional
# XXX should we symlink .keep here?
for my $s (qw(promisor bitmap rev)) {
symlink("$src.$s", "$dst.$s") if -f "$src.$s";
}
} elsif (!$!{EEXIST}) {
warn "W: ln -s $src.{pack,idx} => $dst.*: $!\n";
unlink "$dst.pack", "$dst.idx";
}
}
$ret;
}
sub idx_init { # similar to V2Writable
my ($self, $opt) = @_;
return if $self->{idx_shards};
$self->git->cleanup;
my $mode = 0644;
my $ALL = $self->git->{git_dir}; # topdir/ALL.git
my ($has_new, $alt, $seen);
if ($opt->{-private}) { # LeiStore
my $local = "$self->{topdir}/local"; # lei/store
$self->{mg} //= PublicInbox::MultiGit->new($self->{topdir},
'ALL.git', 'local');
$mode = 0600;
unless (-d $ALL) {
umask 077; # don't bother restoring for lei
PublicInbox::Import::init_bare($ALL);
$self->git->qx(qw(config core.sharedRepository 0600));
}
($alt, $seen) = $self->{mg}->read_alternates(\$mode);
$has_new = $self->{mg}->merge_epochs($alt, $seen);
} else { # extindex has no epochs
$self->{mg} //= PublicInbox::MultiGit->new($self->{topdir},
'ALL.git');
($alt, $seen) = $self->{mg}->read_alternates(\$mode,
$opt->{-idx_gc});
PublicInbox::Import::init_bare($ALL);
}
# git-multi-pack-index(1) can speed up "git cat-file" startup slightly
my $git_midx = 0;
my $pd = "$ALL/objects/pack";
if (opendir(my $dh, $pd)) { # drop stale symlinks
while (defined(my $dn = readdir($dh))) {
if ($dn =~ /\.(?:idx|pack|promisor|bitmap|rev)\z/) {
my $f = "$pd/$dn";
unlink($f) if -l $f && !-e $f;
}
}
} elsif ($!{ENOENT}) {
mkdir($pd) or die "mkdir($pd): $!";
} else {
die "opendir($pd): $!";
}
my $new = '';
for my $ibx (@{ibx_sorted($self, 'active')}) {
# create symlinks for multi-pack-index
$git_midx += symlink_packs($ibx, $pd);
# add new lines to our alternates file
my $d = $ibx->git->{git_dir} . '/objects';
next if exists $alt->{$d};
if (my @st = stat($d)) {
next if $seen->{"$st[0]\0$st[1]"}++;
} else {
warn "W: stat($d) failed (from $ibx->{inboxdir}): $!\n";
next if $opt->{-idx_gc};
}
$new .= "$d\n";
}
($has_new || $new ne '') and
$self->{mg}->write_alternates($mode, $alt, $new);
$git_midx and $self->with_umask(sub {
my @cmd = ('multi-pack-index');
push @cmd, '--no-progress' if ($opt->{quiet}//0) > 1;
my $lk = $self->lock_for_scope;
system('git', "--git-dir=$ALL", @cmd, 'write');
# ignore errors, fairly new command, may not exist
});
$self->parallel_init($self->{indexlevel});
$self->with_umask(\&_idx_init, $self, $opt);
$self->{oidx}->begin_lazy;
$self->{oidx}->eidx_prep;
$self->{midx}->create_xdb if $new ne '';
}
sub _watch_commit { # PublicInbox::DS::add_timer callback
my ($self) = @_;
delete $self->{-commit_timer};
eidxq_process($self, $self->{-watch_sync});
eidxq_release($self);
my $fmt = delete $self->{-watch_sync}->{-regen_fmt};
reindex_checkpoint($self, $self->{-watch_sync});
$self->{-watch_sync}->{-regen_fmt} = $fmt;
# call event_step => done unless commit_timer is armed
PublicInbox::DS::requeue($self);
}
sub on_inbox_unlock { # called by PublicInbox::InboxIdle
my ($self, $ibx) = @_;
my $opt = $self->{-watch_sync}->{-opt};
my $pr = $opt->{-progress};
my $ekey = $ibx->eidx_key;
local $0 = "sync $ekey";
$pr->("indexing $ekey\n") if $pr;
$self->idx_init($opt);
sync_inbox($self, $self->{-watch_sync}, $ibx);
$self->{-commit_timer} //= add_timer($opt->{'commit-interval'} // 10,
\&_watch_commit, $self);
}
sub eidx_reload { # -extindex --watch SIGHUP handler
my ($self, $idler) = @_;
if ($self->{cfg}) {
my $pr = $self->{-watch_sync}->{-opt}->{-progress};
$pr->('reloading ...') if $pr;
delete $self->{-resync_queue};
delete $self->{-ibx_ary_known};
delete $self->{-ibx_ary_active};
$self->{ibx_known} = [];
$self->{ibx_active} = [];
%{$self->{ibx_map}} = ();
delete $self->{-watch_sync}->{id2pos};
my $cfg = PublicInbox::Config->new;
attach_config($self, $cfg);
$idler->refresh($cfg);
$pr->(" done\n") if $pr;
} else {
warn "reload not supported without --all\n";
}
}
sub eidx_resync_start ($) { # -extindex --watch SIGUSR1 handler
my ($self) = @_;
$self->{-resync_queue} //= [ @{ibx_sorted($self, 'active')} ];
PublicInbox::DS::requeue($self); # trigger our ->event_step
}
sub event_step { # PublicInbox::DS::requeue callback
my ($self) = @_;
if (my $resync_queue = $self->{-resync_queue}) {
if (my $ibx = shift(@$resync_queue)) {
on_inbox_unlock($self, $ibx);
PublicInbox::DS::requeue($self);
} else {
delete $self->{-resync_queue};
_watch_commit($self);
}
} else {
done($self) unless $self->{-commit_timer};
}
}
sub eidx_watch { # public-inbox-extindex --watch main loop
my ($self, $opt) = @_;
local @SIG{keys %SIG} = values %SIG;
for my $sig (qw(HUP USR1 TSTP QUIT INT TERM)) {
$SIG{$sig} = sub { warn "SIG$sig ignored while scanning\n" };
}
require PublicInbox::InboxIdle;
require PublicInbox::DS;
require PublicInbox::Syscall;
require PublicInbox::Sigfd;
my $idler = PublicInbox::InboxIdle->new($self->{cfg});
if (!$self->{cfg}) {
$idler->watch_inbox($_) for (@{ibx_sorted($self, 'active')});
}
for my $ibx (@{ibx_sorted($self, 'active')}) {
$ibx->subscribe_unlock(__PACKAGE__, $self)
}
my $pr = $opt->{-progress};
$pr->("performing initial scan ...\n") if $pr;
my $sync = eidx_sync($self, $opt); # initial sync
return if $sync->{quit};
my $oldset = PublicInbox::DS::block_signals();
local $self->{current_info} = '';
my $cb = $SIG{__WARN__} || \&CORE::warn;
local $SIG{__WARN__} = sub {
return if PublicInbox::Eml::warn_ignore(@_);
$cb->($self->{current_info}, ': ', @_);
};
my $sig = {
HUP => sub { eidx_reload($self, $idler) },
USR1 => sub { eidx_resync_start($self) },
TSTP => sub { kill('STOP', $$) },
};
my $quit = PublicInbox::SearchIdx::quit_cb($sync);
$sig->{QUIT} = $sig->{INT} = $sig->{TERM} = $quit;
local $self->{-watch_sync} = $sync; # for ->on_inbox_unlock
PublicInbox::DS->SetPostLoopCallback(sub { !$sync->{quit} });
$pr->("initial scan complete, entering event loop\n") if $pr;
# calls InboxIdle->event_step:
PublicInbox::DS::event_loop($sig, $oldset);
done($self);
}
no warnings 'once';
*done = \&PublicInbox::V2Writable::done;
*with_umask = \&PublicInbox::InboxWritable::with_umask;
*parallel_init = \&PublicInbox::V2Writable::parallel_init;
*nproc_shards = \&PublicInbox::V2Writable::nproc_shards;
*sync_prepare = \&PublicInbox::V2Writable::sync_prepare;
*index_todo = \&PublicInbox::V2Writable::index_todo;
*count_shards = \&PublicInbox::V2Writable::count_shards;
*atfork_child = \&PublicInbox::V2Writable::atfork_child;
*idx_shard = \&PublicInbox::V2Writable::idx_shard;
*reindex_checkpoint = \&PublicInbox::V2Writable::reindex_checkpoint;
*checkpoint = \&PublicInbox::V2Writable::checkpoint;
1;