diff options
| author | Robin Houston <robin.houston@gmail.com> | 2012-01-19 13:50:26 +0000 |
|---|---|---|
| committer | Robin Houston <robin.houston@gmail.com> | 2012-01-19 13:50:26 +0000 |
| commit | 22b2db48c005be1d1b87dd6b58f830a2a74d2108 (patch) | |
| tree | 2355e7d73515b38ecd0edf1616498f4e62b82cd4 /vendor/plugins | |
| parent | 69a2ea41c7c723ba11690ee6ed148cda012f8358 (diff) | |
Limit Xapian wildcard expansions
Wildcard searches in Xapian can expand uncontrollably, consuming
all available RAM and crashing the server. This has been a real
problem on WhatDoTheyKnow.com. The underlying issue is tracked
in http://trac.xapian.org/ticket/350
This changeset imposes a limit on wildcard expansion. The type-ahead
search will first try a wildcard query, and if that fails because
of too much expansion will fall back to a plain non-wildcard search.
Diffstat (limited to 'vendor/plugins')
| -rw-r--r-- | vendor/plugins/acts_as_xapian/lib/acts_as_xapian.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/vendor/plugins/acts_as_xapian/lib/acts_as_xapian.rb b/vendor/plugins/acts_as_xapian/lib/acts_as_xapian.rb index 38bfb7c98..dd033a112 100644 --- a/vendor/plugins/acts_as_xapian/lib/acts_as_xapian.rb +++ b/vendor/plugins/acts_as_xapian/lib/acts_as_xapian.rb @@ -143,6 +143,7 @@ module ActsAsXapian @@query_parser.stemming_strategy = Xapian::QueryParser::STEM_SOME @@query_parser.database = @@db @@query_parser.default_op = Xapian::Query::OP_AND + @@query_parser.set_max_wildcard_expansion(1000) @@stopper = Xapian::SimpleStopper.new @@stopper.add("and") |