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Portal bad Performance due to hanging portal user sessions (Doc ID 180791.1)

Last updated on APRIL 08, 2025

Applies to:

Portal - Version 3.0.9 to 9.0.4.3 [Release 9iAS to 10g]
Information in this document applies to any platform.

Symptoms

All current portal users hangs and no new connection can be established to portal.
V$SESSION_WAIT and systemstate dump shows that sessions are waiting for 'enqueue' and 'buffer busy waits' on table WWA_MODULE_SESSION_ELEMENTS$ (nested table, child of WWA_MODULE_SESSIONS$ table).

Cause

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