RE: BUG #17326: Postgres crashed when pg_reload_conf() with ssl certificate parameters

From postgres logs , it show
2021-12-08 03:57:55.826 UTC::@:[1291058]:[9-1]:2021-12-08 03:33:21 UTC:LOG: received SIGHUP, reloading configuration files
2021-12-08 03:58:02.832 UTC::@:[1291058]:[10-1]:2021-12-08 03:33:21 UTC:LOG: received SIGHUP, reloading configuration files
2021-12-08 03:58:03.143 UTC:10.240.212.242(58646):jamet(at)jamet:[1291076]:[9-1]:2021-12-08 03:33:24 UTC:testsubLOG: disconnection: session time: 0:24:38.967 user=jamet database=jamet host=10.240.212.242 port=58646
2021-12-08 03:58:03.147 UTC:[local]:postgres(at)jamet:[1291397]:[3-1]:2021-12-08 03:57:02 UTC:psqlFATAL: terminating connection due to unexpected postmaster exit
2021-12-08 03:58:03.147 UTC:[local]:postgres(at)jamet:[1291397]:[4-1]:2021-12-08 03:57:02 UTC:psqlLOG: disconnection: session time: 0:01:00.405 user=postgres database=jamet host=[local]

James

-----Original Message-----
From: PG Bug reporting form <noreply(at)postgresql(dot)org>
Sent: Wednesday, December 8, 2021 12:03 PM
To: pgsql-bugs(at)lists(dot)postgresql(dot)org
Cc: James Pang (chaolpan) <chaolpan(at)cisco(dot)com>
Subject: BUG #17326: Postgres crashed when pg_reload_conf() with ssl certificate parameters

The following bug has been logged on the website:

Bug reference: 17326
Logged by: James Pang
Email address: chaolpan(at)cisco(dot)com
PostgreSQL version: 13.4
Operating system: RHEL8.4
Description:

we need SSL enabled for our production env, when I test renew a ssl certificate , and reload_conf, it crashed. even with same certificate and ssl parameters, run reload_conf often lead to Postgres crash. For example
:

=# select name,setting from pg_settings where name like 'ssl_%' order by name;
name | setting
----------------------------------------+-------------------------------
----------------------------------------+--------
ssl_ca_file |
/var/lib/pgsql/sslcerts/awstestca.crt
ssl_cert_file |
/var/lib/pgsql/sslcerts/server.crt
ssl_ciphers | HIGH:MEDIUM:+3DES:!aNULL
ssl_crl_file |
ssl_dh_params_file |
ssl_ecdh_curve | prime256v1
ssl_key_file |
/var/lib/pgsql/sslcerts/server.key
ssl_library | OpenSSL
ssl_max_protocol_version |
ssl_min_protocol_version | TLSv1.2
ssl_passphrase_command |
ssl_passphrase_command_supports_reload | off
ssl_prefer_server_ciphers | on
(13 rows)

=# select pg_reload_conf();
pg_reload_conf
----------------
t
(1 row)

=# select pg_reload_conf();
pg_reload_conf
----------------
t
(1 row)

=# select pg_reload_conf();
FATAL: terminating connection due to unexpected postmaster exit server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.