- https://lucene.apache.org/solr/guide/8_4/uploading-structured-data-store-data-with-the-data-import-handler.html
- https://lucene.apache.org/solr/guide/8_4/configuring-solrconfig-xml.html
- https://lucene.apache.org/solr/guide/8_4/taking-solr-to-production.html#taking-solr-to-production
- https://askubuntu.com/questions/680690/how-to-uninstall-solr
- https://lucene.apache.org/solr/guide/8_4/enabling-ssl.html#enabling-ssl
- Data import Handler error:
