Re: psql hanging

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От Martijn van Oosterhout
Тема Re: psql hanging
Дата
Msg-id 20070905200648.GA11604@svana.org
обсуждение исходный текст
Ответ на Re: psql hanging  ("Trevor Talbot" <quension@gmail.com>)
Ответы Re: psql hanging  ("Scott Marlowe" <scott.marlowe@gmail.com>)
Re: psql hanging  ("Trevor Talbot" <quension@gmail.com>)
Список pgsql-general
On Wed, Sep 05, 2007 at 10:44:20AM -0700, Trevor Talbot wrote:
> Unless psql is turning on keepalive or similar, or the OS is forcing
> it on by default, there are no timeouts for idle TCP connections.  If
> the command was transported to the server successfully and psql was
> just waiting for a result, the connection is idle and nothing will
> happen if the server end suddenly goes away.

Well, any TCP implementation has to support keepalives and generally
they are turned on by default, but to something like 2 days. Anything
months old must be caused by something else (overzealous firewall
dropping the RST packets in response to the keepalives?).

Have a nice day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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