[Koha-bugs] [Bug 21872] Elasticsearch indexing faster by making it multi-threaded

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=21872

--- Comment #26 from Ere Maijala <ere.maijala at helsinki.fi> ---
(In reply to David Cook from comment #24)
> (In reply to Ere Maijala from comment #17)
> > David, see my attached patch. The mechanism would work regardless of whether
> > it's an incremental indexing process, though there are currently no
> > parameters available to support incremental indexing since it shouldn't be
> > needed.
> > 
> 
> Admittedly I don't use Elasticsearch, but are you saying that the
> incremental indexing uses a different mechanism than this one? So
> misc/search_tools/rebuild_elastic_search.pl only it used for a total
> reindexing of the database? When is that typically required?

Yes. Actually, there's no incremental indexing but changes are sent to ES when
a record is saved. It's pretty fast since ES can take the update and make it
visible later. Rebuild is typically needed only if you change the indexing
rules or import a lot of records somehow without indexing.

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