Apache Solr non-ASCII characters

This day I had a problem while indexing French and Russian content with Apache Solr: French and Russian characters where corrupted.

The solution was very simple: I added

URIEncoding="UTF-8"

attribute to the Connector tag which runs Solr in Tomcat's server.xml. Something like

<Connector port="8080" protocol="HTTP/1.1" 

 connectionTimeout="20000" 

 redirectPort="8443" URIEncoding="UTF-8" />

Then Tomcat has to be restarted :-)