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Parallel Query Hangs / Error in the Alert Log: ORA-7445[qkaMarkQkn()+5093] (Doc ID 2332410.1)

Last updated on OCTOBER 14, 2022

Applies to:

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 Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

A parallel query with data redistribution fails with the following error in the alert log:

 

Changes

The hidden parameter _nlj_batching_enabled was changed to 0 from a default value of 1.

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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