https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=39173
Bug ID: 39173
Summary: maxRecordsForFacets doesn't seem to apply to
Elasticsearch, only to Zebra, the docs should clarify
that
Change sponsored?: ---
Product: Koha
Version: Main
Hardware: All
OS: All
Status: NEW
Severity: minor
Priority: P5 - low
Component: Documentation
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected], [email protected]
As in title, the "maxRecordsForFacets" pref has a scary warning about
performance. But the setting seems to be wholly ignored by Elasticsearch (and
it makes sense, you can test by setting the value to some ridiculously low
number while showing facets and then see the counts are much higher, if
searching for "*").
So the pref should mention it's only for Zebra.
And then ALSO, as #2 thing, displayFacetCount, it has this mention:
1. "The relevance of these numbers highly depends on the value of the
maxRecordsForFacets preference."
2. "Showing these numbers can potentially affect the performance of your
searching, so test your system with different values for this preference to see
what works best."
Fix:
1. Only with Zebra. Clarify that with ES, the full proper real number of facet
count will be displayed.
2. Only with Zebra. Explicitly clarify that on ES there's no performance hit to
showing facet counts.
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