View source for WildFly Transaction Subsystem Configuration

=Internal=

* [[WildFly Transaction Subsystem#Subjects|WildFly Transaction Subsystem]]

=Set Unique Node Identifier=

{{External|https://access.redhat.com/solutions/771963}}

If a unique [[WildFly Transaction Subsystem Concepts#Node_Identifier|node identifier]] is not set in domain mode, you'll get this:

<pre>
18:55:02,298 WARN  [org.jboss.as.txn] (ServerService Thread Pool -- 37) JBAS010153: Node identifier property is set to the default value. Please make sure it is unique.
</pre>

To eliminate the warning, configure <tt>[[standalone.xml]]</tt> or <tt>[[domain.xml]]</tt> as follows:

<pre>
    <subsystem xmlns="urn:jboss:domain:transactions:1.5">
        <core-environment node-identifier="${jboss.node.name}">
            ...
        </core-environment>
        ...
    </subsystem>
</pre>

Also see:

{{Internal|WildFly System Properties#jboss.node.name|jboss.node.name}}

Note that "jboss.node.name" has to be explicitly configured at startup. In standalone mode, it can be added in <tt>standalone.conf</tt>:

<pre>
JAVA_OPTS="$JAVA_OPTS -Dstandalone.conf"
</pre>

For domain mode, custom system properties can be declared as described here:
* [[WildFly_System_Properties#Domain_Mode|Declare System Properties in Configuration Files for Domain Mode]]
* [[WildFly_CLI_-_Manipulating_System_Properties#Add.2FRemove_a_per-Server_System_Property|Add/Remove a per-Server System Property with CLI]]