Instance crashed with ORA-481

Bug 11875294  LMS gets stuck during DRM, Instance crashed with ORA-481

 This note gives a brief overview of bug 11875294. 
 The content was last updated on: 20-OCT-2011
 Click here for details of each of the sections below.


Product (Component)Oracle Server (Rdbms)
Range of versions believed to be affectedVersions BELOW 12.1
Versions confirmed as being affected
Platforms affectedGeneric (all / most platforms affected)


This issue is fixed in


Related To:


Rediscovery Notes:
 LMS processes can get stalled during the DRM reconfiguration due to 
 LE shortage, and this can lead to DRM timeout and instance crashes.
  2011-08-25 10:03:45.232033 :Start affinity expansion for pkey 81885.0
  2011-08-25 10:03:46.698163 : Expand failed: pkey 81885.0, 1885 shadows traversed, 853 replayed 1 retries
The fix for this bug takes care of the problem by closing  
anti-locks first and also non-remastered locks to free up more LEs.
 Disable read-mostly locking by setting:
 It is unlikely that interim patches will be produced for this 
 issue. Hence please use the workaround above or move to 
 (or higher) where the issue is fixed.

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