-# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# Detached/external index cross inbox search indexing support
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 PublicInbox::Search;
use PublicInbox::SearchIdx qw(crlf_adjust prepare_stack is_ancestor
is_bad_blob);
use PublicInbox::InboxWritable;
use PublicInbox::ContentHash qw(content_hash);
use PublicInbox::Eml;
-use File::Spec;
+use PublicInbox::DS qw(now);
+use DBI qw(:sql_types); # SQL_BLOB
sub new {
my (undef, $dir, $opt) = @_;
- $dir = File::Spec->canonpath($dir);
my $l = $opt->{indexlevel} // 'full';
$l !~ $PublicInbox::SearchIdx::INDEXLEVELS and
die "invalid indexlevel=$l\n";
}, __PACKAGE__;
$self->{shards} = $self->count_shards || nproc_shards($opt->{creat});
my $oidx = PublicInbox::OverIdx->new("$self->{xpfx}/over.sqlite3");
- $oidx->{-no_fsync} = 1 if $opt->{-no_fsync};
+ $self->{-no_fsync} = $oidx->{-no_fsync} = 1 if !$opt->{fsync};
$self->{oidx} = $oidx;
$self
}
sub attach_inbox {
my ($self, $ibx) = @_;
- $ibx = PublicInbox::InboxWritable->new($ibx);
- my $key = $ibx->eidx_key;
- if (!$ibx->over || !$ibx->mm) {
- warn "W: skipping $key (unindexed)\n";
- return;
- }
- if (!defined($ibx->uidvalidity)) {
- warn "W: skipping $key (no UIDVALIDITY)\n";
- return;
- }
- my $ibxdir = File::Spec->canonpath($ibx->{inboxdir});
- if ($ibxdir ne $ibx->{inboxdir}) {
- warn "W: `$ibx->{inboxdir}' canonicalized to `$ibxdir'\n";
- $ibx->{inboxdir} = $ibxdir;
- }
- $ibx = PublicInbox::InboxWritable->new($ibx);
- $self->{ibx_map}->{$key} //= do {
+ $self->{ibx_map}->{$ibx->eidx_key} //= do {
push @{$self->{ibx_list}}, $ibx;
$ibx;
}
my $nr = $self->{oidx}->remove_xref3($docid, $oid, $eidx_key,
\$rm_eidx_info);
if ($nr == 0) {
+ $self->{oidx}->eidxq_del($docid);
$idx->shard_remove($docid);
} elsif ($rm_eidx_info) {
$idx->shard_remove_eidx_info($docid, $eidx_key, $eml);
+ $self->{oidx}->eidxq_add($docid); # yes, add
}
}
}
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_raw(undef, $eml, $new_smsg, $ibx);
+ $idx->index_raw(undef, $eml, $new_smsg, $ibx->eidx_key);
check_batch_limit($req);
}
sub do_step ($) { # main iterator for adding messages to the index
my ($req) = @_;
- my $self = $req->{self};
+ 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)) {
$heads;
}
+sub _ibx_index_reject ($) {
+ 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;
- my $ekey = $ibx->eidx_key;
if ($v == 2) {
- my $epoch_max;
- defined($ibx->git_dir_latest(\$epoch_max)) or return;
- $sync->{epoch_max} = $epoch_max;
+ $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;
- unless (defined $head) {
- warn "E: $ibx->{inboxdir} is not indexed\n";
- return;
- }
+ 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 {
- warn "E: $ekey unsupported inbox version (v$v)\n";
- return;
+ return "E: $ekey unsupported inbox version (v$v)";
}
for my $unit (@{delete($sync->{todo}) // []}) {
last if $sync->{quit};
}
$self->{midx}->index_ibx($ibx) unless $sync->{quit};
$ibx->git->cleanup; # done with this inbox, now
+ undef;
}
-sub unref_doc ($$$$) {
+sub gc_unref_doc ($$$$) {
my ($self, $ibx_id, $eidx_key, $docid) = @_;
my $dbh = $self->{oidx}->dbh;
DELETE FROM xref3 WHERE docid = ? AND ibx_id = ?
my $remain = $self->{oidx}->get_xref3($docid);
- my $idx = $self->idx_shard($docid);
- if (@$remain) {
+ if (scalar(@$remain)) {
+ $self->{oidx}->eidxq_add($docid); # enqueue for reindex
for my $oid (@oid) {
warn "I: unref #$docid $eidx_key $oid\n";
- $idx->shard_remove_eidx_info($docid, $eidx_key);
}
} else {
warn "I: remove #$docid $eidx_key @oid\n";
- $idx->shard_remove($docid);
+ $self->idx_shard($docid)->shard_remove($docid);
}
}
warn "I: deleting messages for $eidx_key...\n";
$x3_doc->execute($ibx_id);
while (defined(my $docid = $x3_doc->fetchrow_array)) {
- unref_doc($self, $ibx_id, $eidx_key, $docid);
+ gc_unref_doc($self, $ibx_id, $eidx_key, $docid);
}
$dbh->prepare_cached(<<'')->execute($ibx_id);
DELETE FROM inboxes WHERE ibx_id = ?
done($self);
}
+sub _ibx_for ($$$) {
+ 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";
+ $self->{ibx_list}->[$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)) {
+ my $want = scalar(@{$self->{ibx_list}}) + 64; # estimate
+ my $ret = $want > $soft;
+ if ($ret) {
+ warn <<EOF;
+RLIMIT_NOFILE=$soft insufficient (want: $want), will close DB handles early
+EOF
+ }
+ $ret;
+ } else {
+ warn "Unable to determine RLIMIT_NOFILE: $@\n";
+ 1;
+ }
+ };
+}
+
+sub _reindex_finalize ($$$) {
+ my ($req, $smsg, $eml) = @_;
+ my $sync = $req->{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_raw(undef, $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->shard_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 <<EOF;
+$x->{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";
+ $self->idx_shard($docid)->shard_remove($docid);
+ } elsif (my $next_oid = $req->{xr3r}->[++$req->{ix}]->[2]) {
+ $self->git->cat_async($next_oid, \&_reindex_oid, $req);
+ } else {
+ warn "BUG: #$docid gone (UNEXPECTED)\n";
+ $self->idx_shard($docid)->shard_remove($docid);
+ }
+ return;
+ }
+ my $ci = $self->{current_info};
+ local $self->{current_info} = "$ci #$docid $oid";
+ my $re_smsg = bless { blob => $oid }, 'PublicInbox::Smsg';
+ $re_smsg->{bytes} = $size + crlf_adjust($$bref);
+ 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 ($$$) {
+ my ($self, $sync, $smsg) = @_;
+ my $docid = $smsg->{num};
+ my $xr3 = $self->{oidx}->get_xref3($docid, 1);
+ if (scalar(@$xr3) == 0) { # _reindex_check_stale should've covered this
+ warn <<"";
+BUG? #$docid $smsg->{blob} is not referenced by inboxes during reindex
+
+ $self->{oidx}->delete_by_num($docid);
+ $self->idx_shard($docid)->shard_remove($docid);
+ return;
+ }
+
+ # we sort {xr3r} in the reverse order of {ibx_list} so we can
+ # hit the common case in _reindex_finalize without rereading
+ # from git (or holding multiple messages in memory).
+ my $id2pos = $sync->{id2pos}; # index in {ibx_list}
+ @$xr3 = sort {
+ $id2pos->{$b->[0]} <=> $id2pos->{$a->[0]}
+ ||
+ $b->[1] <=> $a->[1] # break ties with {xnum}
+ } @$xr3;
+ @$xr3 = map { [ $_->[0], $_->[1], unpack('H*', $_->[2]) ] } @$xr3;
+ my $req = { orig_smsg => $smsg, sync => $sync, xr3r => $xr3, ix => 0 };
+ $self->git->cat_async($xr3->[$req->{ix}]->[2], \&_reindex_oid, $req);
+}
+
+sub checkpoint_due ($) {
+ my ($sync) = @_;
+ ${$sync->{need_checkpoint}} || (now() > $sync->{next_check});
+}
+
+sub host_ident () {
+ # I've copied FS images and only changed the hostname before,
+ # so prepend hostname. Use `state' since these a BOFH can change
+ # these while this process is running and we always want to be
+ # able to release locks taken by this process.
+ state $retval = hostname . '-' . do {
+ my $m; # machine-id(5) is systemd
+ if (open(my $fh, '<', '/etc/machine-id')) { $m = <$fh> }
+ # (g)hostid(1) is in GNU coreutils, kern.hostid is most BSDs
+ chomp($m ||= `{ sysctl -n kern.hostid ||
+ hostid || ghostid; } 2>/dev/null`
+ || "no-machine-id-or-hostid-on-$^O");
+ $m;
+ };
+}
+
+sub eidxq_release {
+ my ($self) = @_;
+ my $expect = delete($self->{-eidxq_locked}) or return;
+ my ($owner_pid, undef) = split(/-/, $expect);
+ return if $owner_pid != $$; # 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 = "$$-${\time}-$>-".host_ident;
+ $self->{oidx}->eidx_meta('eidxq_lock', $val);
+ $self->{-eidxq_locked} = $val;
+}
+
+sub eidxq_lock_acquire ($) {
+ my ($self) = @_;
+ my $oidx = $self->{oidx};
+ $oidx->begin_lazy;
+ my $cur = $oidx->eidx_meta('eidxq_lock') || return _eidxq_take($self);
+ if (my $locked = $self->{-eidxq_locked}) { # be lazy
+ return $locked if $locked eq $cur;
+ }
+ my ($pid, $time, $euid, $ident) = split(/-/, $cur, 4);
+ my $t = strftime('%Y-%m-%d %k:%M:%S', gmtime($time));
+ if ($euid == $> && $ident eq host_ident) {
+ if (kill(0, $pid)) {
+ warn <<EOM; return;
+I: PID:$pid (re)indexing Xapian since $t, it will continue our work
+EOM
+ }
+ if ($!{ESRCH}) {
+ warn "I: eidxq_lock is stale ($cur), clobbering\n";
+ return _eidxq_take($self);
+ }
+ warn "E: kill(0, $pid) failed: $!\n"; # fall-through:
+ }
+ my $fn = $oidx->dbh->sqlite_db_filename;
+ warn <<EOF;
+W: PID:$pid, UID:$euid on $ident is indexing Xapian since $t
+W: If this is unexpected, delete `eidxq_lock' from the `eidx_meta' table:
+W: sqlite3 $fn 'DELETE FROM eidx_meta WHERE key = "eidxq_lock"'
+EOF
+ undef;
+}
+
+sub eidxq_process ($$) { # for reindexing
+ my ($self, $sync) = @_;
+
+ return unless eidxq_lock_acquire($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} //= do {
+ my %id2pos;
+ my $pos = 0;
+ $id2pos{$_->{-ibx_id}} = $pos++ for @{$self->{ibx_list}};
+ \%id2pos;
+ };
+ 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->{bytes} = $size + crlf_adjust($$bref);
+ my $eml = $req->{eml} = PublicInbox::Eml->new($bref);
+ $req->{new_smsg} = $new_smsg;
+ $req->{chash} = content_hash($eml);
+ $req->{mids} = mids($eml); # do_step iterates through this
+ do_step($req); # enter the normal indexing flow
+}
+
+# --reindex may catch totally unseen messages, this handles them
+sub reindex_unseen ($$$$) {
+ my ($self, $sync, $ibx, $xsmsg) = @_;
+ my $req = {
+ %$sync, # has {self}
+ autime => $xsmsg->{ds},
+ cotime => $xsmsg->{ts},
+ oid => $xsmsg->{blob},
+ ibx => $ibx,
+ xnum => $xsmsg->{num},
+ # {mids} and {chash} will be filled in at _reindex_unseen
+ };
+ warn "I: reindex_unseen ${\$ibx->eidx_key}:$req->{xnum}:$req->{oid}\n";
+ $self->git->cat_async($xsmsg->{blob}, \&_reindex_unseen, $req);
+}
+
+sub _reindex_check_unseen ($$$) {
+ my ($self, $sync, $ibx) = @_;
+ my $ibx_id = $ibx->{-ibx_id};
+ my $slice = 1000;
+ my ($beg, $end) = (1, $slice);
+
+ # 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 unseen %u/".$ibx->over->max."\n";
+ ${$sync->{nr}} = 0;
+
+ while (scalar(@{$msgs = $ibx->over->query_xover($beg, $end)})) {
+ ${$sync->{nr}} = $beg;
+ $beg = $msgs->[-1]->{num} + 1;
+ $end = $beg + $slice;
+ if (checkpoint_due($sync)) {
+ reindex_checkpoint($self, $sync); # release lock
+ }
+
+ my $inx3 = $self->{oidx}->dbh->prepare_cached(<<'', undef, 1);
+SELECT DISTINCT(docid) FROM xref3 WHERE
+ibx_id = ? AND xnum = ? AND oidbin = ?
+
+ for my $xsmsg (@$msgs) {
+ my $oidbin = pack('H*', $xsmsg->{blob});
+ $inx3->bind_param(1, $ibx_id);
+ $inx3->bind_param(2, $xsmsg->{num});
+ $inx3->bind_param(3, $oidbin, SQL_BLOB);
+ $inx3->execute;
+ my $docids = $inx3->fetchall_arrayref;
+ # index messages which were totally missed
+ # the first time around ASAP:
+ if (scalar(@$docids) == 0) {
+ reindex_unseen($self, $sync, $ibx, $xsmsg);
+ } else { # already seen, reindex later
+ for my $r (@$docids) {
+ $self->{oidx}->eidxq_add($r->[0]);
+ }
+ }
+ last if $sync->{quit};
+ }
+ last if $sync->{quit};
+ }
+}
+
+sub _reindex_check_stale ($$$) {
+ my ($self, $sync, $ibx) = @_;
+ my $min = 0;
+ my $pr = $sync->{-opt}->{-progress};
+ my $fetching;
+ my $ekey = $ibx->eidx_key;
+ local $sync->{-regen_fmt} =
+ "$ekey check stale/missing %u/".$ibx->over->max."\n";
+ ${$sync->{nr}} = 0;
+ do {
+ if (checkpoint_due($sync)) {
+ reindex_checkpoint($self, $sync); # release lock
+ }
+ # now, check if there's stale xrefs
+ my $iter = $self->{oidx}->dbh->prepare_cached(<<'', undef, 1);
+SELECT docid,xnum,oidbin FROM xref3 WHERE ibx_id = ? AND docid > ?
+ORDER BY docid,xnum ASC LIMIT 10000
+
+ $iter->execute($ibx->{-ibx_id}, $min);
+ $fetching = undef;
+
+ while (my ($docid, $xnum, $oidbin) = $iter->fetchrow_array) {
+ return if $sync->{quit};
+ ${$sync->{nr}} = $xnum;
+
+ $fetching = $min = $docid;
+ my $smsg = $ibx->over->get_art($xnum);
+ my $oidhex = unpack('H*', $oidbin);
+ my $err;
+ if (!$smsg) {
+ $err = 'stale';
+ } elsif ($smsg->{blob} ne $oidhex) {
+ $err = "mismatch (!= $smsg->{blob})";
+ } else {
+ next; # likely, all good
+ }
+ # current_info already has eidx_key
+ warn "$xnum:$oidhex (#$docid): $err\n";
+ my $del = $self->{oidx}->dbh->prepare_cached(<<'');
+DELETE FROM xref3 WHERE ibx_id = ? AND xnum = ? AND oidbin = ?
+
+ $del->bind_param(1, $ibx->{-ibx_id});
+ $del->bind_param(2, $xnum);
+ $del->bind_param(3, $oidbin, SQL_BLOB);
+ $del->execute;
+
+ # get_xref3 over-fetches, but this is a rare path:
+ my $xr3 = $self->{oidx}->get_xref3($docid);
+ my $idx = $self->idx_shard($docid);
+ if (scalar(@$xr3) == 0) { # all gone
+ $self->{oidx}->delete_by_num($docid);
+ $self->{oidx}->eidxq_del($docid);
+ $idx->shard_remove($docid);
+ } else { # enqueue for reindex of remaining messages
+ $idx->shard_remove_eidx_info($docid,
+ $ibx->eidx_key);
+ $self->{oidx}->eidxq_add($docid); # yes, add
+ }
+ }
+ } while (defined $fetching);
+}
+
+sub _reindex_inbox ($$$) {
+ 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_unseen($self, $sync, $ibx);
+ _reindex_check_stale($self, $sync, $ibx) unless $sync->{quit};
+ }
+ delete @$ibx{qw(over mm search git)}; # won't need these for a bit
+}
+
+sub eidx_reindex {
+ my ($self, $sync) = @_;
+
+ # acquire eidxq_lock early because full reindex takes forever
+ # and incremental -extindex processes can run during our checkpoints
+ if (!eidxq_lock_acquire($self)) {
+ warn "E: aborting --reindex\n";
+ return;
+ }
+ for my $ibx (@{$self->{ibx_list}}) {
+ _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);
+}
+
sub eidx_sync { # main entry point
my ($self, $opt) = @_;
- $self->idx_init($opt); # acquire lock via V2Writable::_idx_init
- $self->{oidx}->rethread_prepare($opt);
- my $warn_cb = $SIG{__WARN__} || sub { print STDERR @_ };
+ my $warn_cb = $SIG{__WARN__} || \&CORE::warn;
local $self->{current_info} = '';
local $SIG{__WARN__} = sub {
$warn_cb->($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),
- reindex => $opt->{reindex},
+ 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{QUIT} = $quit;
local $SIG{INT} = $quit;
local $SIG{TERM} = $quit;
+ for my $ibx (@{$self->{ibx_list}}) {
+ $ibx->{-ibx_id} //= $self->{oidx}->ibx_id($ibx->eidx_key);
+ }
+ if (delete($opt->{reindex})) {
+ local $sync->{checkpoint_unlocks} = 1;
+ eidx_reindex($self, $sync);
+ }
# don't use $_ here, it'll get clobbered by reindex_checkpoint
- for my $ibx (@{$self->{ibx_list}}) {
- last if $sync->{quit};
- _sync_inbox($self, $sync, $ibx);
+ if ($opt->{scan} // 1) {
+ for my $ibx (@{$self->{ibx_list}}) {
+ last if $sync->{quit};
+ sync_inbox($self, $sync, $ibx);
+ }
}
$self->{oidx}->rethread_done($opt) unless $sync->{quit};
+ eidxq_process($self, $sync) unless $sync->{quit};
- PublicInbox::V2Writable::done($self);
+ eidxq_release($self);
+ done($self);
+ $sync; # for eidx_watch
}
sub update_last_commit { # overrides V2Writable
return if $self->{idx_shards};
$self->git->cleanup;
-
+ my $mode = 0644;
my $ALL = $self->git->{git_dir}; # ALL.git
- PublicInbox::Import::init_bare($ALL) unless -d $ALL;
+ my $old = -d $ALL;
+ if ($opt->{-private}) { # LeiStore
+ $mode = 0600;
+ if (!$old) {
+ umask 077; # don't bother restoring
+ PublicInbox::Import::init_bare($ALL);
+ $self->git->qx(qw(config core.sharedRepository 0600));
+ }
+ } else {
+ PublicInbox::Import::init_bare($ALL) unless $old;
+ }
my $info_dir = "$ALL/objects/info";
my $alt = "$info_dir/alternates";
- my $mode = 0644;
my (@old, @new, %seen); # seen: st_dev + st_ino
if (-e $alt) {
open(my $fh, '<', $alt) or die "open $alt: $!";
$mode = (stat($fh))[2] & 07777;
while (my $line = <$fh>) {
chomp(my $d = $line);
+
+ # expand relative path (/local/ stuff)
+ substr($d, 0, 3) eq '../' and
+ $d = "$ALL/objects/$d";
if (my @st = stat($d)) {
next if $seen{"$st[0]\0$st[1]"}++;
} else {
push @old, $line;
}
}
+
+ # for LeiStore, and possibly some mirror-only state
+ if (opendir(my $dh, my $local = "$self->{topdir}/local")) {
+ # highest numbered epoch first
+ for my $n (sort { $b <=> $a } map { substr($_, 0, -4) + 0 }
+ grep(/\A[0-9]+\.git\z/, readdir($dh))) {
+ my $d = "$local/$n.git/objects"; # absolute path
+ if (my @st = stat($d)) {
+ next if $seen{"$st[0]\0$st[1]"}++;
+ # favor relative paths for rename-friendliness
+ push @new, "../../local/$n.git/objects\n";
+ } else {
+ warn "W: stat($d) failed: $!\n";
+ }
+ }
+ }
for my $ibx (@{$self->{ibx_list}}) {
my $line = $ibx->git->{git_dir} . "/objects\n";
chomp(my $d = $line);
PublicInbox::V2Writable::write_alternates($info_dir, $mode, $o);
}
$self->parallel_init($self->{indexlevel});
- $self->umask_prepare;
$self->with_umask(\&_idx_init, $self, $opt);
$self->{oidx}->begin_lazy;
$self->{oidx}->eidx_prep;
$self->{midx}->begin_txn;
}
+sub _watch_commit { # PublicInbox::DS::add_timer callback
+ my ($self) = @_;
+ delete $self->{-commit_timer};
+ eidxq_process($self, $self->{-watch_sync});
+ eidxq_release($self);
+ delete local $self->{-watch_sync}->{-regen_fmt};
+ reindex_checkpoint($self, $self->{-watch_sync});
+
+ # call event_step => done unless commit_timer is armed
+ PublicInbox::DS::requeue($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} //= PublicInbox::DS::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 $self->{-resync_queue};
+ @{$self->{ibx_list}} = ();
+ %{$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) = @_;
+ $self->{-resync_queue} //= [ @{$self->{ibx_list}} ];
+ 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 = %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 @{$self->{ibx_list}};
+ }
+ $_->subscribe_unlock(__PACKAGE__, $self) for @{$self->{ibx_list}};
+ 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::Sigfd::block_signals();
+ local $self->{current_info} = '';
+ my $cb = $SIG{__WARN__} || \&CORE::warn;
+ local $SIG{__WARN__} = sub { $cb->($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;
+ my $sigfd = PublicInbox::Sigfd->new($sig,
+ $PublicInbox::Syscall::SFD_NONBLOCK);
+ %SIG = (%SIG, %$sig) if !$sigfd;
+ local $self->{-watch_sync} = $sync; # for ->on_inbox_unlock
+ if (!$sigfd) {
+ # wake up every second to accept signals if we don't
+ # have signalfd or IO::KQueue:
+ PublicInbox::Sigfd::sig_setmask($oldset);
+ PublicInbox::DS->SetLoopTimeout(1000);
+ }
+ PublicInbox::DS->SetPostLoopCallback(sub { !$sync->{quit} });
+ $pr->("initial scan complete, entering event loop\n") if $pr;
+ PublicInbox::DS->EventLoop; # calls InboxIdle->event_step
+ done($self);
+}
+
no warnings 'once';
*done = \&PublicInbox::V2Writable::done;
-*umask_prepare = \&PublicInbox::InboxWritable::umask_prepare;
*with_umask = \&PublicInbox::InboxWritable::with_umask;
*parallel_init = \&PublicInbox::V2Writable::parallel_init;
*nproc_shards = \&PublicInbox::V2Writable::nproc_shards;
*count_shards = \&PublicInbox::V2Writable::count_shards;
*atfork_child = \&PublicInbox::V2Writable::atfork_child;
*idx_shard = \&PublicInbox::V2Writable::idx_shard;
+*reindex_checkpoint = \&PublicInbox::V2Writable::reindex_checkpoint;
1;