April 2011

With Release 11g Oracle introduced the concept of the Automatic Diagnostic Repository (ADR) which (in theory) is an independant directory structure for all kind of logs and traces for the database, listener and other Oracle products. The content is mostly stored twice (as text or traditional trace file and in xml format). So the size of each individual directory can easily become several GB. Nothing to worry for todays disk spaces but annoying if you really need to find some relevant information. The good news is that there is a purge mechanism associated with it so that old logs and […]