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Zachary Cohen wrote:

As originally reported here (https://forum.netgate.com/topic/172972/haproxy-config-changes-not-loaded-pfsense-restart-needed), changes made to the HAProxy configuration require a reboot to take effect.

Also related to: https://forum.netgate.com/topic/184401/haproxy-seems-to-forward-to-wrong-backend-port and #15182

Kris Phillips wrote in #note-2:

Tested this on 23.09.1 with HAProxy 0.63_2. I'm not able to reproduce this. Changing any frontend or backend settings has no bearing on HAProxy's functionality for me. I also deleted and added a new backend. This did not result in any 503 errors.

There must be something specific in configs that are different from the basics that are causing this.

Zachary,

Do you have anything besides an HTTP and OPTIONS check method for health checks? Perhaps the type of health check makes a difference.

Marking as Incomplete for now until we have more information.

Here's a simplified version of the config. This particular frontend/backend has given me trouble in the past.

I only recently added the HTTP check, but the issue occurred before I added it. Most of my backends have their health check set to "none".

<haproxy>
    <ha_backends>
        <item>
            <name>IOT</name>
            <descr><![CDATA[Reverse Proxy for the IOT Interface]]></descr>
            <status>active</status>
            <primary_frontend>Docker</primary_frontend>
            <type>http</type>
            <httpclose>http-keep-alive</httpclose>
            <ssloffloadcert>51001fee6ea42</ssloffloadcert>
            <advanced></advanced>
            <ha_acls>
                <item>
                    <name>ecowitt</name>
                    <expression>host_matches</expression>
                    <value>ecowitt.REDACTED.com</value>
                    <backendservercountbackend>Blackbox-exporter</backendservercountbackend>
                    <_index></_index>
                </item>
            </ha_acls>
            <ha_certificates>
                <item>
                    <ssl_certificate>51001fee6ea42</ssl_certificate>
                    <_index></_index>
                </item>
            </ha_certificates>
            <clientcert_ca></clientcert_ca>
            <clientcert_crl></clientcert_crl>
            <a_extaddr>
                <item>
                    <extaddr>10.0.0.254_ipv4</extaddr>
                    <extaddr_port>443</extaddr_port>
                    <extaddr_ssl>yes</extaddr_ssl>
                    <_index></_index>
                </item>
            </a_extaddr>
            <a_actionitems>
                <item>
                    <action>use_backend</action>
                    <acl>ecowitt</acl>
                    <use_backendbackend>Ecowitt</use_backendbackend>
                    <_index></_index>
                </item>
            </a_actionitems>
            <a_errorfiles></a_errorfiles>
            <forwardfor>yes</forwardfor>
        </item>
    </ha_backends>
    <ha_pools>
        <item>
            <ha_servers>
                <item>
                    <status>active</status>
                    <name>ecowitt</name>
                    <address>10.0.0.28</address>
                    <port>80</port>
                    <id>158</id>
                    <_index></_index>
                </item>
            </ha_servers>
            <a_acl></a_acl>
            <a_actionitems></a_actionitems>
            <errorfiles></errorfiles>
            <advanced></advanced>
            <advanced_backend></advanced_backend>
            <name>Ecowitt</name>
            <balance></balance>
            <balance_urilen></balance_urilen>
            <balance_uridepth></balance_uridepth>
            <balance_uriwhole></balance_uriwhole>
            <transparent_clientip></transparent_clientip>
            <transparent_interface>wan</transparent_interface>
            <check_type>HTTP</check_type>
            <checkinter>60000</checkinter>
            <log-health-checks>yes</log-health-checks>
            <httpcheck_method>GET</httpcheck_method>
            <monitor_uri>/</monitor_uri>
            <monitor_httpversion>HTTP/1.1\r\nHost:\ www</monitor_httpversion>
            <monitor_username></monitor_username>
            <monitor_domain></monitor_domain>
            <monitor_agentport>Ecowitt</monitor_agentport>
            <agent_check></agent_check>
            <agent_port></agent_port>
            <agent_inter></agent_inter>
            <connection_timeout></connection_timeout>
            <server_timeout></server_timeout>
            <retries></retries>
            <stats_enabled></stats_enabled>
            <stats_username></stats_username>
            <stats_password></stats_password>
            <stats_uri></stats_uri>
            <stats_scope></stats_scope>
            <stats_realm></stats_realm>
            <stats_admin></stats_admin>
            <stats_node></stats_node>
            <stats_desc></stats_desc>
            <stats_refresh></stats_refresh>
            <persist_stick_expire></persist_stick_expire>
            <persist_stick_tablesize></persist_stick_tablesize>
            <persist_stick_length></persist_stick_length>
            <persist_stick_cookiename></persist_stick_cookiename>
            <persist_sticky_type>none</persist_sticky_type>
            <persist_cookie_enabled></persist_cookie_enabled>
            <persist_cookie_name></persist_cookie_name>
            <persist_cookie_mode>passive</persist_cookie_mode>
            <persist_cookie_cachable></persist_cookie_cachable>
            <persist_cookie_postonly></persist_cookie_postonly>
            <persist_cookie_httponly></persist_cookie_httponly>
            <persist_cookie_secure></persist_cookie_secure>
            <haproxy_cookie_maxidle></haproxy_cookie_maxidle>
            <haproxy_cookie_maxlife></haproxy_cookie_maxlife>
            <haproxy_cookie_domains></haproxy_cookie_domains>
            <haproxy_cookie_dynamic_cookie_key></haproxy_cookie_dynamic_cookie_key>
            <strict_transport_security></strict_transport_security>
            <cookie_attribute_secure></cookie_attribute_secure>
            <email_level><![CDATA[alert]]></email_level>
            <email_to><![CDATA[REDACTED]]></email_to>
            <id>155</id>
        </item>
    </ha_pools>
    <configversion>00.58</configversion>
    <files></files>
    <email_mailers></email_mailers>
    <dns_resolvers></dns_resolvers>
    <maxconn>1000</maxconn>
    <logfacility>local0</logfacility>
    <loglevel>info</loglevel>
    <nbthread></nbthread>
    <hard_stop_after></hard_stop_after>
    <localstats_refreshtime></localstats_refreshtime>
    <localstats_sticktable_refreshtime></localstats_sticktable_refreshtime>
    <log-send-hostname></log-send-hostname>
    <sslcompatibilitymode>intermediate</sslcompatibilitymode>
    <ssldefaultdhparam></ssldefaultdhparam>
    <email_level></email_level>
    <email_myhostname></email_myhostname>
    <email_from></email_from>
    <email_to></email_to>
    <resolver_retries></resolver_retries>
    <resolver_timeoutretry></resolver_timeoutretry>
    <resolver_holdvalid></resolver_holdvalid>
    <localstatsport>2200</localstatsport>
    <advanced>REDACTED</advanced>
    <remotesyslog>/var/run/log</remotesyslog>
    <enable></enable>
</haproxy>