v2writable: update comments regarding xcpdb --reshard

Using compact to change shard count was abandoned during
the v2 development phase.

diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 76e61e86931078c41e5999d912efd521df8334bf..db905f924879e78e61e8bf1c4d06405cd09d19bd 100644 (file)
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -58,8 +58,8 @@ sub count_partitions ($) {
        my $xpfx = $self->{xpfx};
 
        # always load existing partitions in case core count changes:
-       # Also, partition count may change while -watch is running
-       # due to -compact
+       # Also, shard count may change while -watch is running
+       # due to "xcpdb --reshard"
        if (-d $xpfx) {
                foreach my $part (<$xpfx/*>) {
                        -d $part && $part =~ m!/[0-9]+\z! or next;
@@ -288,7 +288,7 @@ sub idx_init {
                $self->lock_acquire unless ($opt && $opt->{-skip_lock});
                $over->create;
 
-               # -compact can change partition count while -watch is idle
+               # xcpdb can change shard count while -watch is idle
                my $nparts = count_partitions($self);
                if ($nparts && $nparts != $self->{partitions}) {
                        $self->{partitions} = $nparts;