<<Are you sure that they use Oracle RDBMS? Just kidding. They DO USE MTS, otherwise hash area would be allocated from the process memory and not from the large pool. The only way that hash heap is allocated from the large pool is if the join is done by the process connected to a shared and not to the dedicated server.>> Well, I can't guarantee they're not using MTS, but since DISPATCHERS, MAX_DISPATCHERS, SHARED_SERVERS, MAX_SHARED_SERVERS, CIRCUITS, and SHARED_SERVER_SESSIONS have never been set (i.e., they're at the default values), I'm making the rash assumption that they're not using MTS. <<Apparently, the instance is haunted.>> No doubt. --Terry ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------