Many RAC sessions in long wait, with root session waiting for 'gc current request'
(Doc ID 1907369.1)
Last updated on MARCH 07, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 11.1.0.7 and laterOracle Database Cloud Schema 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
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
In a RAC database, a session may get stuck waiting for 'gc current request', with no obvious blocker. This can cause many sessions to pile up waiting so that there appears to be a database hang. Hanganalyze will show that the root session is waiting for 'gc current request'.
Example chain in hanganalyze output:
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |