Re: delayed block cleanout

From: <nlzanen1_at_ey.nl>
Date: Tue, 27 Feb 2001 07:36:31 -0800
Message-ID: <F001.002BE60F.20010227070528@fatcity.com>

Hi,

You are right bouncing the database won't do the trick. The next access to the block will do the cleanout no matter if the database has gone down in between.

Jack

                                                                                       
                                    
                    Russell Brooks                                                     
                                    
                    <russell.brooks_at_amctechn       To:     Multiple recipients of list 
ORACLE-L <ORACLE-L_at_fatcity.com>     
                    ology.com>                     cc:                                 
                                    
                    Sent by:                       Subject:     delayed block cleanout 
                                    
                    root_at_fatcity.com                                                   
                                    
                                                                                       
                                    
                                                                                       
                                    
                    27-02-2001 15:40                                                   
                                    
                    Please respond to                                                  
                                    
                    ORACLE-L

Hi,
In order to avoid ORA-1555s due to delayed block cleanout during a particular conversion, we are running full table scans before the conversion. Someone has asked if bouncing the system prior to the conversion, which would be much faster, would suffice. I think the rollback
segment entries are already flagged as commited, and the header of the data blocks would still contain the pointer to the RBS. Even if you bounce the system, I think you still get to wait until the next access of the block. Does anyone else have an opinion?

Cheers,
Russ Brooks
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Author: Russell Brooks
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