Hi Jeff, You can delete either by unique id or by a query. It seems that you want to delete all documents having category of monitor.
<delete><query>cat:monitor</query></delete> http://wiki.apache.org/solr/UpdateXmlMessages#A.22delete.22_by_ID_and_by_Query ----- Original Message ----- From: Jeff Zhang <zjf...@gmail.com> To: solr-user@lucene.apache.org Cc: Sent: Monday, May 2, 2011 5:04 AM Subject: Problems of deleting documents from Solr Hi all, I want to update some document, so first I delete these document by invoking command "java -Ddata=args -Dcommit=yes -jar post.jar "<delete><cat>monitor</cat></delete>" The result is that I can not search the deleted documents but I can still see the terms of these document in http://localhost:8983/solr/admin/schema.jsp Even when I restart solr, it's still there, I notice that the *numDocs: * 0 while *maxDoc: * 1 Why's that ? How can I delete the documents correctly ? -- Best Regards Jeff Zhang
