Re: [HACKERS] Speedup twophase transactions

>> CheckPointTwoPhase() in (5) does not sync this prepared transaction
>> because the checkpointer's KnownPreparedList is empty.
>
> And that's why this needs to be stored in shared memory with a number
> of elements made of max_prepared_xacts...

Yeah. Was thinking about this yesterday. How about adding entries in
TwoPhaseState itself (which become valid later)? Only if it does not
cause a lot of code churn.

The current non-shmem list patch only needs to handle standby
shutdowns correctly. Other aspects like standby promotion/recovery are
handled ok AFAICS.

Regards,
Nikhils
-- Nikhil Sontakke                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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