Re: Impact of checkpoint_segments under continual load conditions

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Christopher Petrilli <petrilli(at)gmail(dot)com>
Cc: PFC <lists(at)boutiquenumerique(dot)com>, Vivek Khera <vivek(at)khera(dot)org>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Impact of checkpoint_segments under continual load conditions
Date: 2005-07-19 18:53:13
Message-ID: 8375.1121799193@sss.pgh.pa.us
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Christopher Petrilli <petrilli(at)gmail(dot)com> writes:
> On 7/19/05, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> How *exactly* are you invoking psql?

> It is a subprocess of a Python process, driven using a pexpect
> interchange. I send the COPY command, then wait for the '=#' to come
> back.

Some weird interaction with pexpect maybe? Try adding "-n" (disable
readline) to the psql command switches.

regards, tom lane

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