LDAP timeout options

From: Roman Khapov <rkhapov(at)yandex-team(dot)ru>
To: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: LDAP timeout options
Date: 2026-06-12 07:08:29
Message-ID: 2A7A01E0-3DE5-4E04-B07D-EAEE48C3D71C@yandex-team.ru
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Hi hackers!

While working on connections stall problems with external LDAP authentication for [0] I made a notice,
that the problem can be relevant for Postgres too: when LDAP timeout options was not set and auth operations is taking
long time, the connection (or backend slot) can be hold for a undefined amount of time, causing various problems on server-side.

Seems like for some installation this times should be configurable, so I made a POC patch (attached), that adds new
LDAP hba options: ldapnetworktimeout and ldaptimeout, which allows to configure LDAP_OPT_SEND_TIMEOUT/LDAP_OPT_NETWORK_TIMEOUT and LDAP_OPT_TIMELIMIT/LDAP_OPT_TIMEOUT for LDAP* objects.

Any thoughts on this?

[0] https://github.com/yandex/odyssey

Attachment Content-Type Size
0001-Add-timeout-options-for-LDAP-authentication-connecti.patch application/octet-stream 9.9 KB
unknown_filename text/plain 31 bytes

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