Re: Speedup twophase transactions

From: Nikhil Sontakke <nikhils(at)2ndquadrant(dot)com>
To: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
Cc: Stas Kelvich <s(dot)kelvich(at)postgrespro(dot)ru>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Re: Speedup twophase transactions
Date: 2017-01-26 08:02:48
Message-ID: CAMGcDxcPTFyBfQ--7tp4zFxqE0Ot0bg3gJ1L7dSxY5knMj0chQ@mail.gmail.com
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>> Umm, AFAICS, CheckPointTwoPhase() does not get called in the "standby
>> promote" code path.
>
> CreateRestartPoint() calls it via CheckPointGuts() while in recovery.

May be that I am missing something.

But, I put the recovery process and the checkpointer process of the
standby under gdb with breakpoints on these functions, but both did
not hit CreateRestartPoint() as well as CheckPointGuts() when I issued
a promote :-|

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

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