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Degraded Performance Inserting into Compressed Large Blob Within An Xa Connection (Doc ID 1175593.1)

Last updated on MARCH 07, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 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 Backup Service - Version N/A and later
Information in this document applies to any platform.

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Symptoms


=== ODM Issue Clarification ===

The write performance to a compressed lob degrades as the size of the lob data
being inserted increases.

This is only observed when using an XA connection.

When a non XA connection is used there is no write performance degradation observed.

Changes

XA connection used with lob stored using storage option : SECUREFILE and COMPRESS.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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