Waits for 'latch free' When RESULT_CACHE_MODE=FORCE. Trace Shows Blocking Latch is 'Result Cache: RC Latch'
(Doc ID 1508700.1)
Last updated on NOVEMBER 07, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.2 to 11.2.0.3 [Release 11.2]Oracle 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 Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
- When result_cache_mode is set to Force, many sessions start waiting on 'latch free' and appear to hang
For example, the following may appear to hang : - Trace shows that the blocking latch is 'Result Cache: RC Latch' in the PROCESS STATE header
- The call stacks and the involved sql matches <Bug 12778309> which is a duplicate of <Bug 12658411>
Applied Patch for <Bug 12658411>, but still the problem occurs.
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |