tree 4f644d6f4bfba945beee8e8603f80efc504c2c71
parent bff527b6e8948a1c5e2fd7011069ef0a1cd3f67a
author Valentine Krasnobaeva <vkrasnobaeva@haproxy.com> 1720204929 +0200
committer Willy Tarreau <w@1wt.eu> 1722257762 +0200
encoding latin1

BUG/MEDIUM: init: fix fd_hard_limit default in compute_ideal_maxconn

This commit fixes 41275a691 ("MEDIUM: init: set default for fd_hard_limit via
DEFAULT_MAXFD").

fd_hard_limit is taken in account implicitly via 'ideal_maxconn' value in
all maxconn adjustements, when global.rlimit_memmax is set:

	MIN(global.maxconn, capped by global.rlimit_memmax, ideal_maxconn);

It also caps provided global.rlimit_nofile, if it couldn't be set as a current
process fd limit (see more details in the main() code).

So, lets set the default value for fd_hard_limit only, when there is no any
other haproxy-specific limit provided, i.e. rlimit_memmax, maxconn,
rlimit_nofile. Otherwise we may break users configs.

Please, note, that in master-worker mode, master does not need the
DEFAULT_MAXFD (1048576) as well, as we explicitly limit its maxconn to 100.

Must be backported in all stable versions until v2.6.0, including v2.6.0,
like the commit above.

(cherry picked from commit 16a5fac4bba1cb2bb6cf686066256aa141515feb)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit bfd43e79996fd1aebed8942c2c27456e380f88e4)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 30f1f4e78333d2d2835535a42ca8c854c377f586)
Signed-off-by: Willy Tarreau <w@1wt.eu>