Question

I’m having a weird problem, where I can connect to Solr, and index the site (I can search on the Solr Admin area for the indexed content, and it works), but when I search in Drupal, I get the error:

The Apache Solr search engine is not available. Please contact your site administrator.

Does anyone know why this would happen? I can clear connect to Apache Solr, so I’m not sure why this would happen. The error I get in the logs is
“0” Status: Communication Error

which is in no way helpful to me.

Answer 1

There is a code like this in service.php:

$response = new Apache_Solr_Response(@file_get_contents($url, 
false, $this->_postContext), $http_response_header);

To be able to use file_get_contents() in PHP,
the “allow_url_fopen” directive must be enabled.
May be your server did not do that.

Try this :

- Creating php.ini
- Fill it with these lines:
[PHP]
allow_url_fopen = On