Notice: Undefined variable: http_response_header in Apache_Solr_Service->_sendRawGet() (line 336 of /opt/rh/httpd24/root/var/www/html/drupal/web/sites/all/modules/contrib/islandora_solr_search/SolrPhpClient/Apache/Solr/Service.php).
Error searching Solr index "0" Status: Communication Error
Notice: Undefined variable: http_response_header in Apache_Solr_Service->_sendRawGet() (line 336 of /opt/rh/httpd24/root/var/www/html/drupal/web/sites/all/modules/contrib/islandora_solr_search/SolrPhpClient/Apache/Solr/Service.php).
Error searching Solr index "0" Status: Communication Error