(I don't know if this is a solr-user or solr-dev matter.) By uncommenting firstSearcher event in solrconfig.xml in trunk (downloaded from hudson Sept.16), as in:
<listener event="firstSearcher" class="solr.QuerySenderListener"> <arr name="queries"> <lst> <str name="q">fast_warm</str> <str name="start">0</str> <str name="rows">10</str> </lst> </arr> </listener> I got this exception: 20-set-2007 21.10.14 org.apache.solr.core.SolrCore parseListener INFO: Searching for listeners: //[EMAIL PROTECTED]"firstSearcher"] java.lang.InstantiationException: org.apache.solr.core.QuerySenderListener at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.apache.solr.core.Config.newInstance(Config.java:304) [...] This issue is easily reproducible by using the example directory, just uncomment firstSearcher and/or newSearcher event in the sorlconfig.xml, and launch solr. -- Walter