How to Set Maximum Degree of Parallelism (DOP) by the Resource Manager
(Doc ID 1508338.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
The database may not have sufficient resources to run all queries at the same time at their ideal degree-of-parallelism. When this happens, parallel queries are downgraded or waiting in the parallel statement queue depending on the configuration.
There are several methods to limit the maximum DOP. If Database Resource Manager (DBRM) is enabled, then it is the ultimate deciding factor
in determining the maximum degree of parallelism (DOP).
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