Re: increasing the default WAL segment size

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: David Steele <david(at)pgmasters(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, Prabhat Sahu <prabhat(dot)sahu(at)enterprisedb(dot)com>, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Kuntal Ghosh <kuntalghosh(dot)2007(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: increasing the default WAL segment size
Date: 2017-03-24 04:27:29
Message-ID: a4408acf-5eef-35b0-8bbc-b1e66217edac@2ndquadrant.com
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On 3/23/17 16:58, Stephen Frost wrote:
> The backup tools need to also get the LSN from the pg_stop_backup and
> verify that they have the WAL file associated with that LSN.

There is a function for that.

> They also
> need to make sure that they have all of the WAL files between the
> starting LSN and the ending LSN. Doing that requires understanding how
> the files are named to make sure there aren't any missing.

There is not a function for that, but there could be one.

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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