Re: [HACKERS] Measuring replay lag - Mailing list pgsql-hackers

From Thomas Munro
Subject Re: [HACKERS] Measuring replay lag
Date
Msg-id CAEepm=2V2_wCvZ-6K=rsQi3YTqPG4ceCT4XJwgj2PRA6iLGRKA@mail.gmail.com
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In response to Re: [HACKERS] Measuring replay lag  (Thomas Munro <thomas.munro@enterprisedb.com>)
List pgsql-hackers
On Wed, Jan 4, 2017 at 12:22 PM, Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
> The patch streams (time-right-now, end-of-wal) to the standby in every
> outgoing message, and then sees how long it takes for those timestamps
> to be fed back to it.

Correction: we already stream (time-right-now, end-of-wal) to the
standby in every outgoing message.  The patch introduces a new use of
that information by feeding them back upstream.

-- 
Thomas Munro
http://www.enterprisedb.com



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