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Long-Running Background Processes Like 'o00n' (Doc ID 2226855.1)

Last updated on APRIL 27, 2021

Applies to:

Oracle Database Cloud Service - Version N/A and later
Oracle SuperCluster M7 Hardware - Version All Versions and later
Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

In all of the databases in SC, have background processes from normal users which are active for almost 7 days.

if we kill these session, they appear again after sometime.

Ex:

PID SPID PROGRAM PGA_USED_MEM PGA_ALLOC_MEM PGA_MAX_MEM
---- ------ ------------------------- ------------ ------------- -----------
52 12487 oracle@dbadm01 (O000) 1043654 1117038 1117038
63 14622 oracle@dbadm01 (O001) 1030302 1117038 1117038
306 22108 oracle@dbadm01 (O002) 1030302 1117038 1117038

 

Changes

 none

Cause

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