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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 24, 2020

Applies to:

Oracle Database - Personal Edition - Version 9.2.0.1 and later
Oracle Database - Enterprise Edition - Version 9.2.0.1 and later
Information in this document applies to any platform.

Purpose

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
Purpose
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
References

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