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How to Diagnose Issues Where 'enq: TX - row lock contention' Waits are Occurring (Doc ID 1986832.1)

Last updated on JANUARY 13, 2023

Applies to:

Oracle Database - Personal Edition - Version and later
Oracle Database - Enterprise Edition - Version and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A to N/A
Information in this document applies to any platform.


This article outlines how to use various diagnostics to progress issues where "TX" enqueues wait for 'enq: TX - row lock contention' .

Troubleshooting Steps

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In this Document
Troubleshooting Steps
 How to deal with TX lock contention
 Is the system hung?
 ADDM Report
 AWR Report
 ASH Report
 System is Hung:
 System State Dump

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