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

Last updated on JULY 07, 2021

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 Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - 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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