RE: delayed block cleanout

Hi Russ,

Yes, a bounce will not achieve anything, and neither will a full table scan if it is done in parallel or if 'delayed_logging_block_cleanouts' is TRUE (which is the default at 7.3 and 8.0).

@ Regards,
@ Steve Adams
@ http://www.ixora.com.au/
@ http://www.christianity.net.au/

-----Original Message-----
Sent: Wednesday, 28 February 2001 0:41
To: Multiple recipients of list 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: Steve Adams
  INET: steve.adams_at_ixora.com.au

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