3 public-inbox-extindex - create and update external search indices
7 public-inbox-extindex [OPTIONS] EXTINDEX_DIR INBOX_DIR...
9 public-inbox-extindex [OPTIONS] [EXTINDEX_DIR] --all
13 FIXME: behavior not finalized It should probably write to the
14 config file the first time --all is used.
16 public-inbox-extindex creates and updates an external search and
17 overview database used by the read-only public-inbox PSGI (HTTP),
18 NNTP, and IMAP interfaces. This requires either the
19 L<Search::Xapian> XS bindings OR the L<Xapian> SWIG bindings,
20 along with L<DBD::SQLite> and L<DBI> Perl modules.
30 ... TODO, see L<public-inbox-index(5)>
34 Index all C<publicinbox> entries in C<PI_CONFIG>.
36 C<publicinbox> entries indexed by C<public-inbox-extindex> can
37 have full Xapian searching abilities with the per-C<publicinbox>
38 C<indexlevel> set to C<basic> and their respective Xapian
39 (C<xap15> or C<xapian15>) directories removed. For multiple
40 public-inboxes where cross-posting is common, this allows
41 significant space savings on Xapian indices.
45 Perform garbage collection instead of indexing. Use this if
46 inboxes are removed from the extindex, or if messages are
47 purged or removed from some inboxes.
51 Forces a re-index of all messages in the extindex. This can be
52 used for in-place upgrades and bugfixes while read-only server
53 processes are utilizing the index. Keep in mind this roughly
54 doubles the size of the already-large Xapian database.
56 The extindex locks will be released roughly every 10s to
57 allow L<public-inbox-mda(1)> and L<public-inbox-watch(1)>
58 processes to write to the extindex.
62 Used with C<--reindex>, it will only look for new and stale
63 entries and not touch already-indexed messages.
69 L<public-inbox-extindex-format(5)>
73 ... TODO, see L<public-inbox-index(5)>
81 Used to override the default "~/.public-inbox/config" value.
83 =item XAPIAN_FLUSH_THRESHOLD
85 The number of documents to update before committing changes to
86 disk. This environment is handled directly by Xapian, refer to
87 Xapian API documentation for more details.
89 Setting C<XAPIAN_FLUSH_THRESHOLD> or
90 C<publicinbox.indexBatchSize> for a large C<--reindex> may cause
91 L<public-inbox-mda(1)>, L<public-inbox-learn(1)> and
92 L<public-inbox-watch(1)> tasks to wait long and unpredictable
93 periods of time during C<--reindex>.
95 Default: none, uses C<publicinbox.indexBatchSize>
101 Occasionally, public-inbox will update it's schema version and
102 require a full index by running this command.
106 Feedback welcome via plain-text mail to L<mailto:meta@public-inbox.org>
108 The mail archives are hosted at L<https://public-inbox.org/meta/> and
109 L<http://4uok3hntl7oi7b4uf4rtfwefqeexfzil2w6kgk2jn5z2f764irre7byd.onion/meta/>
113 Copyright 2021 all contributors L<mailto:meta@public-inbox.org>
115 License: AGPL-3.0+ L<https://www.gnu.org/licenses/agpl-3.0.txt>
119 L<Search::Xapian>, L<DBD::SQLite>