| From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | 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: | 2017-03-17 22:11:23 |
| Message-ID: | 714c26b8-f26d-d7cf-3de2-5d9ec25d3bf8@2ndquadrant.com |
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| Lists: | pgsql-hackers |
On 3/17/17 16:56, Tom Lane wrote:
> Tools could get the segment size out of
> XLogLongPageHeaderData.xlp_seg_size in the first page of the segment.
OK, then pg_standby would have to wait until the file is at least
XLOG_BLCKSZ, then look inside and get the expected final size. A bit
more complicated than now, but seems doable.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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