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12c ACFS memory consumption is high (Doc ID 2408127.1)

Last updated on JANUARY 24, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata 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.

Symptoms

ACFS is holding millions of files, and all the files are being backedup regularly

In this case slab cache (portions of it related to ACFS) is consuming system memory (over 50GB)

Use slabtop command to list kernel's slab cache details

Please note, that the slab cache was using over 50 GB of RAM



Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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