Horton

Re: [HACKERS] make async slave to wait for lsn to be replayed

Andy Fan <zhihuifan1213@163.com>

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From: Andy Fan <zhihuifan1213@163.com>
To: Alexander Korotkov <aekorotkov@gmail.com>
Cc: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>, Kartyshov Ivan <i.kartyshov@postgrespro.ru>, Euler Taveira <euler@eulerto.com>, Thomas Munro <thomas.munro@gmail.com>, Peter Eisentraut <peter@eisentraut.org>, Amit Kapila <amit.kapila16@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>, Peter Smith <smithpb2250@gmail.com>, pgsql-hackers@lists.postgresql.org
Date: 2024-04-03T08:36:33Z
Lists: pgsql-hackers 
> I also can confirm that a lot of users would be very happy to have
> "read your writes consistency" and ready to do something to achieve
> this at an application level.  However, they typically don't know what
> exactly they need.
>
> So, blogging about pg_wal_replay_wait() and spreading words about it
> at conferences would be highly appreciated.

Sure, once it is committed, I promise I can doing a knowledge sharing in
our organization and write a article in chinese language.  

-- 
Best Regards
Andy Fan

Commits

  1. Ensure standby promotion point in 043_wal_replay_wait.pl

  2. Minor cleanup related to pg_wal_replay_wait() procedure

  3. Adjust pg_wal_replay_wait() procedure behavior on promoted standby

  4. pg_wal_replay_wait(): Fix typo in the doc

  5. Implement pg_wal_replay_wait() stored procedure

  6. Revert: Implement pg_wal_replay_wait() stored procedure

  7. Call WaitLSNCleanup() in AbortTransaction()

  8. Clarify what is protected by WaitLSNLock

  9. Use an LWLock instead of a spinlock in waitlsn.c

  10. Use the pairing heap instead of a flat array for LSN replay waiters

  11. Minor improvements for waitlsn.c

  12. Make the order of the header file includes consistent