{subsection: Condor Quill}
Quill stores job history data persistently in a database and allows Condor tools to query the database.
See: CondorQuill
+{subsection: Condor DBQ}
+Condor DBQ provides a relational database management system interface to Condor.
+See: CondorDbq
{subsection: Condor Pigeon}
Pigeon allows queuing and forwarding of user log messages via AMQP. It consists of a broker and client tools.
See: CondorPigeon
