| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: hot_standby = on |
| Date: | 2010-06-08 21:24:46 |
| Message-ID: | 10910.1276032286@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> Well, yes. But then to stop that you could just lock users out using
> pg_hba.conf, no? It just doesn't seem to be buying all that much to me.
The main reason to turn it off is to disable a whole lot of very poorly
tested code, and thereby improve the reliability of your warm standby
server. There might be (almost certainly are) significant performance
benefits as well. I think it'll be at least a couple of release cycles
before any sane DBA would turn it on on standbys where he didn't
positively need it.
regards, tom lane
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