Horton

Re: Standbys, txid_current_snapshot, wraparound

Marko Kreen <markokr@gmail.com>

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From: Marko Kreen <markokr@gmail.com>
To: Simon Riggs <simon@2ndQuadrant.com>
Cc: Daniel Farina <daniel@heroku.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, Andrey Velikoredchanin <uncleandyv@gmail.com>
Date: 2012-03-29T10:12:31Z
Lists: pgsql-hackers 
On Thu, Mar 29, 2012 at 10:37:54AM +0100, Simon Riggs wrote:
> When the standby receives the checkpoint record, it stores the
> information in 2 places:
> i) directly into ControlFile->checkPointCopy
> ii) and then into XLogCtl when a safe restartpoint occurs

In RecoveryRestartPoint() I see:

- memcpy(&XLogCtl->lastCheckPoint, checkPoint, sizeof(CheckPoint));

but I still don't see how are the ckptXid* values updated?

What am I missing?

-- 
marko