My Oracle Support Banner

Very High Values Listed for Parallel Execution "Servers Requested" and "Servers Allocated" in SQL Monitor Output (Doc ID 3003061.1)

Last updated on FEBRUARY 17, 2024

Applies to:

Oracle Database - Enterprise Edition - Version 19.21.0.0.0 and later
Information in this document applies to any platform.

Symptoms

When viewing details of a particular query, (which is executed high number of times), from SQL Monitor, very high values are seen for "Servers Requested" and "Servers Allocated" in the "Parallel Execution Details".
For example:

The Degree of Parallelism (DOP) however is set correctly to 4, as chosen in the PARALLEL Hint for the query.

The DOP downgrade is also listed as just 3% but we see:

Servers Requested=10600
Servers Allocated=10296

This document explains why the values for "Servers Requested" and "Servers Allocated" are shown as such high values.

Changes

 

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.