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

Last updated on DECEMBER 03, 2018

Applies to:

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


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
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
 8. Deadlock Parser Tool (Enterprise Manager)

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