Apache Solr Reference Guide Covering Apache Solr 6.0

langid.lcmap string none false A space-separated list specifying colon
delimited language code mappings to
apply to the detected languages. For
example, you might use this to map
Chinese, Japanese, and Korean to a
common cjk code, and map both
American and British English to a single
en code by using langid.lcmap=ja:c
jk zh:cjk ko:cjk en_GB:en
en_US:en. This affects both the values
put into the langField and langsFiel
d fields, as well as the field suffixes when
using langid.map, unless overridden
by langid.map.lcmap
langid.threshold float 0.5 no Specifies a threshold value between 0
and 1 that the language identification
score must reach before langid accept
s it. With longer text fields, a high
threshold such at 0.8 will give good
results. For shorter text fields, you may
need to lower the threshold for language
identification, though you will be risking
somewhat lower quality results. We
recommend experimenting with your
data to tune your results.
langid.whitelist string none no Specifies a list of allowed language
identification codes. Use this in
combination with langid.map to ensure
that you only index documents into fields
that are in your schema.
langid.map Boolean false no Enables field name mapping. If true, Solr
will map field names for all fields listed in
langid.fl.
langid.map.fl string none no A comma-separated list of fields for lan
gid.map that is different than the fields
specified in langid.fl.
langid.map.keepOrig Boolean false no If true, Solr will copy the field during the
field name mapping process, leaving the
original field in place.
langid.map.individual Boolean false no If true, Solr will detect and map
languages for each field individually.
langid.map.individual.fl string none no A comma-separated list of fields for use
with langid.map.individual that is
different than the fields specified in lang
id.fl.
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