5 Replies Latest reply on Oct 20, 2014 2:43 AM by mbabacek

Wildfly 8, mod_cluster & apache integration

mpowell Oct 16, 2014 2:26 PM

I am having problems getting mod_cluster 1.2 to work with Apache.

Symptoms:

When I start Wildfly the console produces the following error every 3-5 seconds:

ERROR [org.jboss.modcluster] (UndertowEventHandlerAdapter - 1) MODCLUSTER000042: Error null sending INFO command to precise32/127.0.1.1:6666, configuration will be reset: null

I can see a corresponding request in my Apache logs as: "INFO / HTTP/1.1" 501 529 "-" "ClusterListener/1.0"

The http://localhost:9191/mod_cluster-manager URL only shows the page title and links, but no cluster info:

mod_cluster/1.2.6.Final

Auto Refresh show DUMP output show INFO output

I am running both jboss and apache on the same virtual server.

Server Info:

Virtual Box 4.3.14 running:

Ubuntu 12.04 LTS

Apache/2.2.22

Wildfly 8.0

I can navigate to my web apps on Wildfly directly without going through Apache and it works fine. If I try and navigate through Apache, I get the following errors in my Apache log:

[Thu Oct 16 03:12:33 2014] [debug] mod_proxy_cluster.c(2231): proxy: byrequests balancer FAILED

[Thu Oct 16 03:12:33 2014] [error] proxy: CLUSTER: (balancer://mycluster). All workers are in error state

[Thu Oct 16 03:12:33 2014] [debug] mod_deflate.c(615): [client 10.0.2.2] Zlib: Compressed 410 to 276 : URL /

My relevant Apache configs look like:

mod_cluster.load:

LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so

</IfModule>

LoadModule advertise_module /usr/lib/apache2/modules/mod_advertise.so

LoadModule manager_module /usr/lib/apache2/modules/mod_manager.so

LoadModule proxy_cluster_module /usr/lib/apache2/modules/mod_proxy_cluster.so

LoadModule slotmem_module /usr/lib/apache2/modules/mod_slotmem.so

mod_cluster.conf:

CreateBalancers 1

Listen 127.0.1.1:6666

ManagerBalancerName mycluster

KeepAliveTimeout 300

MaxKeepAliveRequests 0

AdvertiseFrequency 5

ServerAdvertise On

Order deny,allow

Allow from 127.0.0

</Location>

</VirtualHost>

</IfModule>

virtual host:

#ServerAdmin me@domain.edu

ServerName jboss.cluster

ServerAlias jboss.cluster

	ProxyPass / balancer://mycluster stickysession=JSESSIONID\|jsessionid nofailover=On
	ProxyPassReverse / balancer://mycluster
	ProxyPreserveHost On

Order deny,allow

Allow from All

</Location>

SetHandler mod_cluster-manager

Order deny,allow

#Deny from all

Allow from 127.0.0

</Location>

ErrorLog ${APACHE_LOG_DIR}/jboss_cluster_error.log

LogLevel debug

CustomLog ${APACHE_LOG_DIR}/jboss_access.log combined

</VirtualHost>

standalone.xml:

	<extensions>
	<extension module="org.jboss.as.clustering.infinispan"/>
	<extension module="org.jboss.as.connector"/>
	<extension module="org.jboss.as.deployment-scanner"/>
	<extension module="org.jboss.as.ee"/>
	<extension module="org.jboss.as.ejb3"/>
	<extension module="org.jboss.as.jaxrs"/>
	<extension module="org.jboss.as.jdr"/>
	<extension module="org.jboss.as.jmx"/>
	<extension module="org.jboss.as.jpa"/>
	<extension module="org.jboss.as.jsf"/>
	<extension module="org.jboss.as.logging"/>
	<extension module="org.jboss.as.mail"/>
	<extension module="org.jboss.as.naming"/>
	<extension module="org.jboss.as.pojo"/>
	<extension module="org.jboss.as.remoting"/>
	<extension module="org.jboss.as.sar"/>
	<extension module="org.jboss.as.security"/>
	<extension module="org.jboss.as.transactions"/>
	<extension module="org.jboss.as.webservices"/>
	<extension module="org.jboss.as.weld"/>
	<extension module="org.wildfly.extension.batch"/>
	<extension module="org.jboss.as.modcluster"/>
	<extension module="org.wildfly.extension.io"/>
	<extension module="org.wildfly.extension.undertow"/>
	</extensions>

...

<mod-cluster-config advertise-socket="modcluster" connector="ajp">

<dynamic-load-provider>

<load-metric type="cpu"/>

</dynamic-load-provider>

</mod-cluster-config>

</subsystem>

......

	<interfaces>
	<interface name="management">
	<inet-address value="${jboss.bind.address.management:0.0.0.0}"/>
	</interface>

	<interface name="public">
	<inet-address value="${jboss.bind.address:0.0.0.0}"/>
	</interface>
	<interface name="unsecure">
	<inet-address value="${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="modcluster" port="0" multicast-address="224.0.1.105" multicast-port="23364"/>
	<socket-binding name="http" port="${jboss.http.port:9090}"/>
	<socket-binding name="https" port="${jboss.https.port:8443}"/>
	<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>

vhost error log jboss_cluster_error.log: