Re: Oracle 18c changed the checkpointing in a physical standby database (with the side effect of a bug).

Hi Rich,

for documentation, I did not find anything beyond this SR and the bug mentioned.

Maybe a PM can bring in more light, or we'd have to set up some tracing in the Frits Hoogland or Stefan Köhler style. :)

Stay safe
Martin

-- 
Martin Klier // Performing Databases GmbH 
Managing Partner // Senior DB Consultant 
Oracle ACE Director 

martin.klier_at_performing-db.com // https://www.performing-databases.com 



> Von: "Rich J" <rjoralist3_at_society.servebeer.com>

> An: "Oracle-L Freelists" <oracle-l_at_freelists.org>

> Gesendet: Mittwoch, 14. August 2019 15:14:40

> Betreff: Re: Oracle 18c changed the checkpointing in a physical standby database


> (with the side effect of a bug).





> On 2019/08/13 08:25, Martin Klier - Performing Databases GmbH wrote:


>> => They changed the way how checkpoints work for MRP (now different to primary)
>> [
>> https://www.usn-it.de/2019/08/13/oracle-database-18c-changed-mrp-checkpointing-from-log-boundary-to-time-based/
>> |
>> https://www.usn-it.de/2019/08/13/oracle-database-18c-changed-mrp-checkpointing-from-log-boundary-to-time-based/
>> ]



> Is that change in behavior documented? There's no mention of it in the "changes"

> section of [

> https://docs.oracle.com/en/database/oracle/oracle-database/18/sbydb/ |

> https://docs.oracle.com/en/database/oracle/oracle-database/18/sbydb/ ] But I

> did notice the few mentions of MRP now reference "Managed Redo Process" instead

> of "Media Recovery Process".

> But the reality is that this seems more than just a minor shift in how MRP

> works. The lack of documentation for such a fundamental change is disappointing

> at best. Thankfully, I'm working on replacing ADG soon...

> Thanks, Martin!


> Rich


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