init: use Import::run_die instead of system()

[public-inbox.git] / Documentation / public-inbox-xcpdb.pod

diff --git a/Documentation/public-inbox-xcpdb.pod b/Documentation/public-inbox-xcpdb.pod
index a04fd374ce1ba49146d5a14e3932627d7827040d..a13c4efa7bedc41427041cb552afe4c77092d351 100644 (file)
--- a/Documentation/public-inbox-xcpdb.pod
+++ b/Documentation/public-inbox-xcpdb.pod
@@ -21,7 +21,7 @@ L<public-inbox-watch(1)> or L<public-inbox-mda(1)>.
 =item --compact
 
 In addition to performing the copy operation, run L<xapian-compact(1)>
-on each Xapian partition after copying but before finalizing it.
+on each Xapian shard after copying but before finalizing it.
 Compared to the cost of copying a Xapian database, compacting a
 Xapian database takes only around 5% of the time required to copy.
 
@@ -30,6 +30,16 @@ preferable for gigantic inboxes where the coarse-grained lock
 currently required for L<public-inbox-compact(1)> can cause
 the compaction to take hours at-a-time.
 
+=item --reshard=N / -R N
+
+Reshard the Xapian database on a L<v2|public-inbox-v2-format(5)>
+inbox to C<N> shards .  Since L<xapian-compact(1)> is not suitable
+for merging, users can rely on this switch to reshard the
+existing Xapian database(s) to any positive value of C<N>.
+
+This is useful in case the Xapian DB was created with too few or
+too many shards given the capabilities of the current hardware.
+
 =item --blocksize / --no-full / --fuller
 
 These options are passed directly to L<xapian-compact(1)> when