Lucy::Index::BackgroundMerger - Consolidate index segments in the background.
my $bg_merger = Lucy::Index::BackgroundMerger->new( index => '/path/to/index', ); $bg_merger->commit;
Adding documents to an index is usually fast, but every once in a while the index must be compacted and an update takes substantially longer to complete. See Lucy::Docs::Cookbook::FastUpdates for how to use this class to control worst-case index update performance.
my $bg_merger = Lucy::Index::BackgroundMerger->new( index => '/path/to/index', # required manager => $manager # default: created internally );
Open a new BackgroundMerger.
Commit any changes made to the index. Until this is called, none of the changes made during an indexing session are permanent.
Calls prepare_commit() implicitly if it has not already been called.
Perform the expensive setup for commit() in advance, so that commit() completes quickly.
Towards the end of prepare_commit(), the BackgroundMerger attempts to re-acquire the write lock, which is then held until commit() finishes and releases it.
Optimize the index for search-time performance. This may take a while, as it can involve rewriting large amounts of data.
Lucy::Index::BackgroundMerger isa Lucy::Object::Obj.