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 FEBRUARY 14, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168 [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.
- 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.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document