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From: Fujii Masao <[email protected]>
To: Tomonari Katsumata <[email protected]>
Cc: pgsql-docs <[email protected]>
Subject: Re: disabling log_rotation_age feature.
Date: Thu, 12 Jun 2014 21:26:09 +0900
Message-ID: <CAHGQGwEPVu2T39Zddvh-CubJ9Ghyz4Gf1-JGqqvu5Ja7m5BJ7w@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On Thu, Jun 12, 2014 at 1:43 PM, Tomonari Katsumata
<[email protected]> wrote:
> Hi,
>
> I'm reading about log_rotation_age.
> And I noticed that the setting for disabling the feature is not clear.
>
>
> The document tells us to set it to ZERO if we want to disable the feature.
> However, the feature would be disabled if we set it less than one minute.

That's because log_rotation_age expects the setting value in minutes.

This is not a problem only for log_rotation_age. When setting the parameter
which expects the value in seconds to less than one second, the setting value
is implicitly reset to the default. For example,

postgres=# SHOW tcp_keepalives_idle ;
 tcp_keepalives_idle
---------------------
 7200
(1 row)

postgres=# SET tcp_keepalives_idle TO '10ms';
SET
postgres=# SHOW tcp_keepalives_idle ;
 tcp_keepalives_idle
---------------------
 7200
(1 row)

postgres=# SET tcp_keepalives_idle TO '1024ms';
SET
postgres=# SHOW tcp_keepalives_idle ;
 tcp_keepalives_idle
---------------------
 1
(1 row)

Regards,

-- 
Fujii Masao


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