: When I run the following query : : : http://localhost:8666/solr/select/?q=test+lettre&version=2.2&start=0&rows=10&indent=on&qt=dismax
: HTTP Status 500 - For input string: "" java.lang.NumberFormatException: For : input string: "" at java.lang.NumberFormatException.forInputString( : NumberFormatException.java:48) at java.lang.Integer.parseInt(Integer.java:468) : at java.lang.Integer.<init>(Integer.java:620) at : org.apache.solr.util.SolrPluginUtils.calculateMinShouldMatch( That exception seems to indicate that the value of your "mm" option is set to the empty string. if you had no value specified, then it would default to the string "100%" since there is no "mm" param in the URL you listed, i'm assuming your solrconfig.xml has a default "mm" param specifeid and it is the empty string (or perhaps all whitespace) if you set that to a legal "minShouldMatch" string (or remove it completely) things should work fine. if you'd like, feel free to open a bug requesting a better error message when "mm" can't be parsed cleanly. (please note the "" causes NumFormatException as the motivation for the bug) -Hoss
