Hello,
I installed HAProxy 2.2.2 using the below article on two CentOS 7 servers:
make TARGET=linux-glibc USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_CRYPT_H=1 USE_LIBCRYPT=1
sudo make install
sudo mkdir -p /etc/haproxy
sudo mkdir -p /var/lib/haproxy
sudo touch /var/lib/haproxy/stats
sudo ln -s /usr/local/sbin/haproxy /usr/sbin/haproxy
sudo cp examples/haproxy.init /etc/init.d/haproxy
sudo chmod 755 /etc/init.d/haproxy
sudo systemctl daemon-reload
sudo chkconfig haproxy on
sudo useradd -r haproxy
And then clustered them (Pacemaker/Corosync) for high availability
However (months on) i’ve just found out the systemctl reload haproxy command does not work - I am unable to reload the config without restarting haproxy via systemctl restart haproxy.
I found another thread in this forum saying it’s due to HAProxy not being compiled using USE_SYSTEMD=1 and is using init.d which is also confirmed from here:
haproxy -vv
HA-Proxy version 2.2.2 2020/07/31 - https://haproxy.org/
Status: long-term supported branch - will stop receiving fixes around Q2 2025.
Known bugs: http://www.haproxy.org/bugs/bugs-2.2.2.html
Running on: Linux 3.10.0-1127.13.1.el7.x86_64 #1 SMP Tue Jun 23 15:46:38 UTC 202 0 x86_64
Build options :
TARGET = linux-glibc
CPU = generic
CC = gcc
CFLAGS = -O2 -g -Wall -Wextra -Wdeclaration-after-statement -fwrapv -Wno-unus ed-label -Wno-sign-compare -Wno-unused-parameter -Wno-clobbered -Wno-missing-fie ld-initializers -Wtype-limits
OPTIONS = USE_PCRE=1 USE_LIBCRYPT=1 USE_CRYPT_H=1 USE_OPENSSL=1 USE_ZLIB=1
Feature list : +EPOLL -KQUEUE +NETFILTER +PCRE -PCRE_JIT -PCRE2 -PCRE2_JIT +POLL -PRIVATE_CACHE +THREAD -PTHREAD_PSHARED +BACKTRACE -STATIC_PCRE -STATIC_PCRE2 + TPROXY +LINUX_TPROXY +LINUX_SPLICE +LIBCRYPT +CRYPT_H +GETADDRINFO +OPENSSL -LUA +FUTEX +ACCEPT4 +ZLIB -SLZ +CPU_AFFINITY +TFO +NS +DL +RT -DEVICEATLAS -51DEGRE ES -WURFL **-SYSTEMD** -OBSOLETE_LINKER +PRCTL +THREAD_DUMP -EVPORTS
Default settings :
bufsize = 16384, maxrewrite = 1024, maxpollevents = 200
Built with multi-threading support (MAX_THREADS=64, default=4).
Built with OpenSSL version : OpenSSL 1.0.2k-fips 26 Jan 2017
Running on OpenSSL version : OpenSSL 1.0.2k-fips 26 Jan 2017
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports : SSLv3 TLSv1.0 TLSv1.1 TLSv1.2
Built with network namespace support.
Built with zlib version : 1.2.7
Running on zlib version : 1.2.7
Compression algorithms supported : identity("identity"), deflate("deflate"), raw -deflate("deflate"), gzip("gzip")
Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_F REEBIND
Built with PCRE version : 8.32 2012-11-30
Running on PCRE version : 8.32 2012-11-30
PCRE library supports JIT : no (USE_PCRE_JIT not set)
Encrypted password support via crypt(3): yes
Built with gcc compiler version 4.8.5 20150623 (Red Hat 4.8.5-39)
Available polling systems :
epoll : pref=300, test result OK
poll : pref=200, test result OK
select : pref=150, test result OK
Total: 3 (3 usable), will use epoll.
Available multiplexer protocols :
(protocols marked as <default> cannot be specified using 'proto' keyword)
fcgi : mode=HTTP side=BE mux=FCGI
<default> : mode=HTTP side=FE|BE mux=H1
h2 : mode=HTTP side=FE|BE mux=H2
<default> : mode=TCP side=FE|BE mux=PASS
Available services : none
Available filters :
[SPOE] spoe
[COMP] compression
[TRACE] trace
[CACHE] cache
[FCGI] fcgi-app
# systemctl status haproxy
â—Ź haproxy.service - Cluster Controlled haproxy
Loaded: loaded (/etc/rc.d/init.d/haproxy; bad; vendor preset: disabled)
Drop-In: /run/systemd/system/haproxy.service.d
└─50-pacemaker.conf
Active: active (running) since Wed 2020-11-04 20:19:15 GMT; 29min ago
Docs: man:systemd-sysv-generator(8)
Process: 2226 ExecStart=/etc/rc.d/init.d/haproxy start (code=exited, status=0/SUCCESS)
Main PID: 2238 (haproxy)
CGroup: /system.slice/haproxy.service
└─2238 /usr/sbin/haproxy -D -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid
Nov 04 20:19:15 XXXXXX Starting Cluster Controlled haproxy...
Nov 04 20:19:15 XXXXXX haproxy[2226]: Starting haproxy: [ OK ]
Nov 04 20:19:15 XXXXXX systemd[1]: Started Cluster Controlled haproxy.
Is it possible to fix this (enable systemd haproxy?) without completely wiping the server and just doing a fresh install of HAProxy? What would be the steps/commands to run for this?
I’m a complete novice with LINUX so would appreciate any help (literally reddit-style explain like i’m five please!)
Thank you!
