Issue
I want to set up a standalone Wildfly cluster with 2 nodes. For this purpose I set up 2 fedora22 virtual machines. On both nodes I installed Wildfly 9.0.0.Final and run it with standalone-ha.xml
configuration file. On first node I also installed httpd 2.4 and mod_cluster 1.3.1. Current setting are listed below.
On both machines I disabled firewall and SELinux.
Node1 configuration (192.168.2.240)
mod_cluster.conf
LoadModule cluster_slotmem_module modules/mod_cluster_slotmem.so
LoadModule proxy_cluster_module modules/mod_proxy_cluster.so
LoadModule advertise_module modules/mod_advertise.so
LoadModule manager_module modules/mod_manager.so
CreateBalancers 1
<IfModule manager_module>
Listen 192.168.2.240:6666
ManagerBalancerName mycluster
<VirtualHost 192.168.2.240:6666>
KeepAliveTimeout 300
MaxKeepAliveRequests 0
AdvertiseFrequency 5
ServerAdvertise On
EnableMCPMReceive
<Location />
Require all granted
</Location>
<Location /mod_cluster_manager>
SetHandler mod_cluster-manager
Require all granted
</Location>
</VirtualHost>
httpd.conf
ServerRoot "/etc/httpd"
Listen 80 Include conf.modules.d/*.conf User apache Group apache ServerAdmin root@localhost
<Directory />
AllowOverride none
Require all denied
</Directory>
DocumentRoot "/var/www/html"
<Directory "/var/www">
AllowOverride None
Require all granted
</Directory>
<Directory "/var/www/html">
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
<IfModule dir_module>
DirectoryIndex index.html
</IfModule>
<Files ".ht*">
Require all denied
</Files>
ErrorLog "logs/error_log"
LogLevel debug
<IfModule log_config_module>
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
<IfModule logio_module>
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
</IfModule>
CustomLog "logs/access_log" combined
</IfModule>
<IfModule alias_module>
ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
</IfModule>
<Directory "/var/www/cgi-bin">
AllowOverride None
Options None
Require all granted
</Directory>
<IfModule mime_module>
TypesConfig /etc/mime.types
AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
AddType text/html .shtml
AddOutputFilter INCLUDES .shtml
</IfModule>
AddDefaultCharset UTF-8
<IfModule mime_magic_module>
MIMEMagicFile conf/magic
</IfModule>
EnableSendfile on
#Includes mod_cluster.conf
IncludeOptional conf.d/*.conf
<VirtualHost *:80>
ServerAdmin webmaster@localhost
ProxyPass / balancer://mycluster stickysession=JSESSIONID|jsessionid nofailover=On
ProxyPassReverse / balancer://mycluster
<Location />
Require all granted
</location>
</VirtualHost>
standalone-ha.xml (I am pasting only important parts)
<?xml version='1.0' encoding='UTF-8'?>
<server name="node1" xmlns="urn:jboss:domain:3.0">
<subsystem xmlns="urn:jboss:domain:modcluster:2.0">
<mod-cluster-config advertise-socket="modcluster" connector="ajp">
<dynamic-load-provider>
<load-metric type="cpu"/>
</dynamic-load-provider>
</mod-cluster-config>
</subsystem>
<subsystem xmlns="urn:jboss:domain:undertow:2.0">
<buffer-cache name="default"/>
<server name="default-server">
<ajp-listener name="ajp" socket-binding="ajp"/>
<http-listener name="default" socket-binding="http" redirect-socket="https"/>
<host name="cloudflow" alias="localhost">
<location name="/" handler="welcome-content"/>
<filter-ref name="server-header"/>
<filter-ref name="x-powered-by-header"/>
</host>
</server>
<servlet-container name="default">
<jsp-config/>
<websockets/>
</servlet-container>
<handlers>
<file name="welcome-content" path="${jboss.home.dir}/welcome-content"/>
</handlers>
<filters>
<response-header name="server-header" header-name="Server" header-value="WildFly/9"/>
<response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
</filters>
</subsystem>
<interfaces>
<interface name="management">
<inet-address value="${jboss.bind.address.management:192.168.2.240}"/>
</interface>
<interface name="public">
<inet-address value="${jboss.bind.address:192.168.2.240}"/>
</interface>
<interface name="unsecure">
<inet-address value="${jboss.bind.address.unsecure:127.0.0.1}"/>
</interface>
</interfaces>
<socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">
<socket-binding name="management-http" interface="management" port="${jboss.management.http.port:9990}"/>
<socket-binding name="management-https" interface="management" port="${jboss.management.https.port:9993}"/>
<socket-binding name="ajp" port="${jboss.ajp.port:8009}"/>
<socket-binding name="http" port="${jboss.http.port:8080}"/>
<socket-binding name="https" port="${jboss.https.port:8443}"/>
<socket-binding name="jgroups-mping" port="0" multicast-address="${jboss.default.multicast.address:230.0.0.4}" multicast-port="45700"/>
<socket-binding name="jgroups-tcp" port="7600"/>
<socket-binding name="jgroups-tcp-fd" port="57600"/>
<socket-binding name="jgroups-udp" port="55200" multicast-address="${jboss.default.multicast.address:230.0.0.4}" multicast-port="45688"/>
<socket-binding name="jgroups-udp-fd" port="54200"/>
<socket-binding name="modcluster" port="0" multicast-address="224.0.1.105" multicast-port="23364"/>
<socket-binding name="txn-recovery-environment" port="4712"/>
<socket-binding name="txn-status-manager" port="4713"/>
<outbound-socket-binding name="mail-smtp">
<remote-destination host="localhost" port="25"/>
</outbound-socket-binding>
</socket-binding-group>
Node2 configuration (192.168.2.226)
<?xml version='1.0' encoding='UTF-8'?>
<server name="node2" xmlns="urn:jboss:domain:3.0">
<subsystem xmlns="urn:jboss:domain:modcluster:2.0">
<mod-cluster-config advertise-socket="modcluster" connector="ajp">
<dynamic-load-provider>
<load-metric type="cpu"/>
</dynamic-load-provider>
</mod-cluster-config>
</subsystem>
<subsystem xmlns="urn:jboss:domain:undertow:2.0">
<buffer-cache name="default"/>
<server name="default-server">
<ajp-listener name="ajp" socket-binding="ajp"/>
<http-listener name="default" socket-binding="http" redirect-socket="https"/>
<host name="cloudflow" alias="localhost">
<location name="/" handler="welcome-content"/>
<filter-ref name="server-header"/>
<filter-ref name="x-powered-by-header"/>
</host>
</server>
<servlet-container name="default">
<jsp-config/>
<websockets/>
</servlet-container>
<handlers>
<file name="welcome-content" path="${jboss.home.dir}/welcome-content"/>
</handlers>
<filters>
<response-header name="server-header" header-name="Server" header-value="WildFly/9"/>
<response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
</filters>
</subsystem>
<interfaces>
<interface name="management">
<inet-address value="${jboss.bind.address.management:192.168.2.226}"/>
</interface>
<interface name="public">
<inet-address value="${jboss.bind.address:192.168.2.226}"/>
</interface>
<interface name="unsecure">
<inet-address value="${jboss.bind.address.unsecure:127.0.0.1}"/>
</interface>
</interfaces>
<socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">
<socket-binding name="management-http" interface="management" port="${jboss.management.http.port:9990}"/>
<socket-binding name="management-https" interface="management" port="${jboss.management.https.port:9993}"/>
<socket-binding name="ajp" port="${jboss.ajp.port:8009}"/>
<socket-binding name="http" port="${jboss.http.port:8080}"/>
<socket-binding name="https" port="${jboss.https.port:8443}"/>
<socket-binding name="jgroups-mping" port="0" multicast-address="${jboss.default.multicast.address:230.0.0.4}" multicast-port="45700"/>
<socket-binding name="jgroups-tcp" port="7600"/>
<socket-binding name="jgroups-tcp-fd" port="57600"/>
<socket-binding name="jgroups-udp" port="55200" multicast-address="${jboss.default.multicast.address:230.0.0.4}" multicast-port="45688"/>
<socket-binding name="jgroups-udp-fd" port="54200"/>
<socket-binding name="modcluster" port="0" multicast-address="224.0.1.105" multicast-port="23364"/>
<socket-binding name="txn-recovery-environment" port="4712"/>
<socket-binding name="txn-status-manager" port="4713"/>
<outbound-socket-binding name="mail-smtp">
<remote-destination host="localhost" port="25"/>
</outbound-socket-binding>
</socket-binding-group>
my application settings
pom.xml
<contextRoot>/</contextRoot>
jboss-web.xml
<jboss-web>
<context-root>/</context-root>
<virtual-host>cloudflow</virtual-host>
</jboss-web>
jboss-web.xml
<distributable />
I start httpd with systemctl start httpd
and then i run Wildfly with ./standalone.sh -c standalone-ha.xml
.
Servers starts without an error and deploy application. I can see my application on both nodes on localhost:8080
On 192.168.2.240:6666/mod_cluster_manager i can see following screen:
When i want to get my app in browser on address http://192.168.2.240/ but i get 503 Service Unavailable when i restart httpd and page 404 - Not found few seconds letter. On http://192.168.2.240:6666/ i get fedora test page. Error log of httpd dont show any error only debug messages.
I think i have problem in configuration where my app gets deployed.
Solution
Problem was on command: ServerAdvertise On I changed it to: ServerAdvertise On IP:6666
I also delelted whole virtual Host section for port 80 in httpd.conf After that it worked
Answered By - Domen Petrič Answer Checked By - David Marino (WPSolving Volunteer)