How to load file “synonyms.txt” present on remote server using solr?

Question

<analyzer type="query">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>

Here file "synonyms.txt" is present in current directory . How to load this file if it's location is on remote server not on local machine ?

Answer 1

Unfortunately, you can't just type in an URL because the ResourceLoader of the SynonymFilterFactory uses a FilesystemResourceLoader .

Thus said, you could still point Solr to anything that looks and behaves like a file, eg an NFS-mounted directory or even a locally synced Dropbox folder.

Answer 2

You can't load resource from remote. Instead you can http post request to put synonyms to your solr server with ManagedSynonymFilterFactory

This featured introduced in Solr 4.8.0

How to Use :

First you have to declare your filter like below

<filter class="solr.ManagedSynonymFilterFactory" managed="english"/>

You can post Synonyms to solr with the below curl request :

curl -X PUT -H 'Content-type:application/json' --data-binary '{"mad":["angry","upset"]}' "http://solr_ip:8983/solr/collection_name/schema/analysis/synonyms/english"

Here change solr_ip and collection_name with yours. and i am putting word synonyms for mad is angry,upset

And you can check your synonyms by a get request.

http://solr_ip:8983/solr/collection_name/schema/analysis/synonyms/english

For more info : https://cwiki.apache.org/confluence/display/solr/Managed+Resources