Query Intermittently Spins on CPU in Function kkscsFindMatchingRange()
(Doc ID 1949350.1)
Last updated on MAY 12, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.4 to 12.1.0.2 [Release 11.2 to 12.1]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
Information in this document applies to any platform.
Symptoms
- Query intermittently spins on CPU, but most of the time runs OK without spinning.
- The execution plan is good and does not change when the problem is hit.
- Errorstacks of the spinning process show that it is stuck in the function kkscsFindMatchingRange(). Call stack in the trace file :
Changes
No actual changes.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |