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Command used:

[dspace]/bin/dspace update-discovery-index [-cbhf[r <item handle>]]

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Java class:

org.dspace.discovery.IndexClient

Arguments (short and long forms):

Description

 

called without any options, will update/clean an existing index

-b

(re)build index, wiping out current one if it exists

-c

clean existing index removing any documents that no longer exist in the db

-f

if updating existing index, force each handle to be reindexed even if uptodate

-h

print this help message

-o

optimize search core

-r <item handle>

remove an Item, Collection or Community from index based on its handle

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Discovery is built as an application layer on top of the Open Source Enterprise Search Server SOLR. ThereforTherefore, SOLR configuration can be applied to the SOLR cores that are shipped with DSpace.
The DSpace SOLR instance itself now runs two cores. One for collection DSpace Solr based "statistics", the other for Discovery Solr based "search".

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