Troubleshooting Database Contention With V$Wait_Chains
(Doc ID 1428210.1)
Last updated on JULY 20, 2023
Applies to:
Oracle Database Backup Service - Version N/A and laterOracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.
Purpose
The purpose of this document is to provide a fast and easy way to troubleshoot database contention and hangs via SQL in version 11g with v$wait_chains.
Troubleshooting Steps
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In this Document
| Purpose |
| Troubleshooting Steps |
| Introduction |
| Basic Information |
| Additional Information (formatted) - Top 100 wait chain processes |
| Final Blocking Session in 11.2 |
| Example of Output of Query 1 using Oracle Enterprise Manager |
| References |