RE: Timeout parameters

From: "Jamison, Kirk" <k(dot)jamison(at)jp(dot)fujitsu(dot)com>
To: "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com>, "Nagaura, Ryohei" <nagaura(dot)ryohei(at)jp(dot)fujitsu(dot)com>
Cc: 'Kyotaro HORIGUCHI' <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, "coelho(at)cri(dot)ensmp(dot)fr" <coelho(at)cri(dot)ensmp(dot)fr>, "robertmhaas(at)gmail(dot)com" <robertmhaas(at)gmail(dot)com>, "MikalaiKeida(at)ibagroup(dot)eu" <MikalaiKeida(at)ibagroup(dot)eu>, "AYahorau(at)ibagroup(dot)eu" <AYahorau(at)ibagroup(dot)eu>, "michael(at)paquier(dot)xyz" <michael(at)paquier(dot)xyz>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: RE: Timeout parameters
Date: 2019-03-29 04:22:16
Message-ID: D09B13F772D2274BB348A310EE3027C6489E6D@g01jpexmbkw24
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>The socket_timeout patch needs the following fixes. Now that others have already tested these patches >successfully, they appear committable to me.

In addition, regarding socket_timeout parameter.
I referred to the doc in libpq.sgml, corrected misspellings,
and rephrased the doc a little bit as below:

Maximum wait in seconds (write as a decimal integer, e.g. 10) for socket read/write operation before closing the connection. A value of zero (the default) turns this off, which means wait indefinitely. The minimum allowed timeout is 2 seconds, so a value of 1 is interpreted as 2.

Although this can be used as a stopgap timeout measure, it is recommended
to set a value higher than the other timeout parameters
(<literal>connect_timeout</literal>, <literal>statement_timeout</literal>,
<literal>TCP_KEEP_ALIVES</literal>, <literal>TCP_USER_TIMEOUT</literal>)
because setting a smaller value will make the other configured timeout
parameters meaningless and can cause undesirable disconnection.

Kirk Jamison

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