Resolving Issues Where Lock Contention for 'enq: TM - contention' Wait Event (TM Enqueue Contention) Using Parallel DML
(Doc ID 1475340.1)
Last updated on JULY 15, 2022
Applies to:
Oracle Database - Standard Edition - Version 9.0.1.0 and laterOracle Database - Enterprise Edition - Version 9.0.1.0 and later
Oracle Database - Personal Edition - Version 9.0.1.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Information in this document applies to any platform.
Purpose
Disclaimer: This note is written in the context that the Performance Guided Resolution tool was used and recommended this article. It may not make as much sense if read standalone or by other audiences.
Troubleshooting Steps
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In this Document
Purpose |
Troubleshooting Steps |
Brief Definition: |
Problem Confirmation: |
'TM' Enqueues and Parallel DML |
Measuring Success |
Known Issues |
References |