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Troubleshooting "Global Enqueue Services Deadlock detected" (Doc ID 1443482.1)

Last updated on NOVEMBER 28, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Information in this document applies to any platform.

Purpose

This note is to provide some common causes and solutions for message "Global Enqueue Services Deadlock detected" reported in alert log.

Troubleshooting Steps

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In this Document
Purpose
Troubleshooting Steps
 1. TX deadlock in Exclusive(X) mode
 2. TX deadlock in Share(S) mode
 3. TM deadlock
 4. Single resource deadlock for TX , TM, IV or LB
 5. LB deadlock
 6. Known Issues
 7. Further Diagnosis
References

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