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Large Number of Wnnn Background Processes Are Spawned On 12.1.0.2 And Above (Doc ID 2297950.1)

Last updated on AUGUST 24, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Oracle Database Cloud Schema Service - Version N/A 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
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Goal

Starting 12.1.0.2, large number of Wnnn processes (Space Management Background Secondary) may be spawned, as compared to 11.2.0.4. 
This document describes the changes between versions and what precautions may be necessary.

Solution

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In this Document
Goal
Solution
References


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