After Activation Of DEFAULT_MAINTENANCE_PLAN User Sessions Are Stalled On "Resmgr:Cpu Quantum" (Doc ID 1952762.1)

Last updated on JULY 21, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.
***Checked for relevance on 21-Jul-2017***

Symptoms

After the activation of DEFAULT_MAINTENANCE_PLAN, user sessions are stalled on  "resmgr:cpu quantum"
Process VKRM does run in all situations which confirms that it is not Bug 16392079.
Adding of subplan LOW_GROUP did not solve the issue which confirms that it is not Bug 18190784.

Cause

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