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Materialized View Refresh Statistics Causing High CPU and Logical Reads (Doc ID 2764909.1)

Last updated on JULY 20, 2024

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

Issue started after applying DBRU for October 2019.

During the "hanging" period, the database executes calls to DBMS_IREFSTATS.PURGE_STATS_MV_RP, which accumulates high quantities of DB Cpu time, associated with high logical read count

 

Changes

 DBRU OCT 2019

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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