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Re: Streaming replication and non-blocking I/O

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Aidan Van Dyk <aidan(at)highrise(dot)ca>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Streaming replication and non-blocking I/O
Date: 2010-01-15 20:53:16
Message-ID: 20437.1263588796@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Aidan Van Dyk <aidan(at)highrise(dot)ca> writes:
> Maybe an insane question, but why can postmaster just not "exec"
> walreceiver?

It'd greatly complicate access to shared memory.

			regards, tom lane

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