If you didn't know it before - there is a nice module which will provide autocomplete functionality to all of the search forms on your Drupal site. Recently i have installed this module on our development box and everything was pretty fine. Today i pushed a new version of the site to the preproduction box and autocomplete stops working with errors:
PHP Fatal error: Uncaught exception 'Exception' with message '"0" Status: Request failed' in /sites/all/modules/apachesolr/Drupal_Apache_Solr_Service.php:272
Stack trace:
#0 /sites/all/modules/apachesolr/SolrPhpClient/Apache/Solr/Service.php(964): Drupal_Apache_Solr_Service->_sendRawGet('http://192.168....')
#1 /sites/all/modules/apachesolr/apachesolr_search.module(246): Apache_Solr_Service->search('finance', 0, '20', Array)
#2 /sites/all/modules/apachesolr/drush/apachesolr.drush.inc(145): apachesolr_search_execute('finance')
#3 [internal function]: apachesolr_drush_solr_search('finance')
#4 /usr/share/drush/includes/drush.inc(51): call_user_func_array('apachesolr_drus...', Array)
#5 /usr/share/drush/drush.php(90): drush_dispatch(Array)
#6 /usr/share/drush/drush.php(40): drush_main()
#7 {main}
thrown in /sites/all/modules/apachesolr/Drupal_Apache_Solr_Service.php on line 272
Drush command could not be completed. I did some investigation and the problem was in the size of headers which were getting passed to solr. Fix in server.xml:
Change:
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
URIEncoding="UTF-8"/>
To:
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
URIEncoding="UTF-8"
maxHttpHeaderSize="8192"/>And restart Tomcat.
Related issues on Drupal.org:
"0" Status: Request failed
Helpful handbook page:
Troubleshooting
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