lei q: limit concurrency to 4 remote connections

Unfortunately, this isn't a per-host limit, yet; but
nevertheless reduces load on existing PublicInbox::WWW
instances, since requesting a mboxrd is one of the more
expensive operations.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/LeiQuery.pm b/lib/PublicInbox/LeiQuery.pm
index acab3c2c..a7938e8b 100644
--- a/lib/PublicInbox/LeiQuery.pm
+++ b/lib/PublicInbox/LeiQuery.pm
@@ -26,7 +26,7 @@ sub lei_q {
                 my $cb = $lxs->can('prepare_external');
                 $self->_externals_each($cb, $lxs);
         }
-        my $xj = $opt->{thread} ? $lxs->locals : ($lxs->remotes + 1);
+        my $xj = $lxs->concurrency($opt);
         my $ovv = PublicInbox::LeiOverview->new($self) or return;
         $self->atfork_prepare_wq($lxs);
         $lxs->wq_workers_start('lei_xsearch', $xj, $self->oldset);