RAC Re: "GC Domain Validation" event
- From: "K Gopalakrishnan" <kaygopal@xxxxxxxxx>
- To: racdba@xxxxxxxxxxxxx
- Date: Sat, 18 Nov 2006 17:50:27 -0800
Ravi,
GC domain validation is a third (or fourth) step during instance recovery.
In instance recovery gc domain validation comes after second pass recovery
and during gc domain validation SMON isses a recovery lock claim to the IDLM
(now GRD) and recovery process proceeds further.
I see no reason for foreground sessions waiting for GC domain validation..
It could be a bug!
-Gopal
On 11/18/06, Ravi_Kulkarni@xxxxxxxx <Ravi_Kulkarni@xxxxxxxx> wrote:
Friends,
Anyone here had issue with this event.
A scheduled job (dbms_job) , which is calling a purge Stored Proc is found
waiting on this event for a long time - causing some of the sessions wait on
Enq TX-Row lock contention.
Did not get any hits (p1=p2=p3=0).
10.1.0.5 on RH Linux - 2.4.21-40.ELhugemem #1 SMP
Wondering if the masters can shed some light on what this does…….
Regards,
Ravi.
--
Best Regards,
K Gopalakrishnan
Co-Author: Oracle Wait Interface, Oracle Press 2004
http://www.amazon.com/exec/obidos/tg/detail/-/007222729X/
Author: Oracle Database 10g RAC Handbook, Oracle Press 2006
http://www.amazon.com/gp/product/007146509X/
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