Warning message on /subsystem=transactions

[aiya0933]

Hi all,

While starting the wildfly 11 app server for my system, i encountered this warning message logged in the server.log.

WARN [org.jboss.as.txn] (ServerService Thread Pool -- 58) WFLYTX0013: The node-identifier attribute on the /subsystem=transactions is set to the default value. This is a danger for environments running multiple servers. Please make sure the attribute value is unique.

Is there any configuration settings we need to do on standalone.xml?

Appreciate any kind advice.

[alban5650]

Hi Angela,

You can set a unique value for your instance in the standalone configuration, default value is 1:

<subsystem xmlns="urn:jboss:domain:transactions:5.0">
  <core-environment node-identifier="${jboss.tx.node.id:1}">
  ...
</subsystem>

Alternatively, you can pass a unique value to the server as a JVM parameter:

-Djboss.tx.node.id=my-unique-server-id

The choice is yours and you should no longer see the warning when starting the server.

[emeuwese]

An other option is to set ${jboss.tx.node.id} in a system-property.

For a standalone configurationyou can set node id value through cli in a system-property

./system-property=jboss.tx.node.id:add(value=111)

or in standalone.xml

<server xmlns="urn:jboss:domain:9.0">
    ...
    <system-properties>
        <property name="jboss.tx.node.id" value="111"/>
    </system-properties>
    ...
</server>

For a domain configuration you can set node id value through cli in a system-property for each server. Just as what was written in a previous topic about this subject Re: JBAS010153: Node identifier property is set to the default value. Please make sure it is unique.

./host=master/server-config=server-one/system-property=jboss.tx.node.id:add(boot-time=true,value=101)
./host=master/server-config=server-two/system-property=jboss.tx.node.id:add(boot-time=true,value=102)

or in host.xml

<host xmlns="urn:jboss:domain:9.0" ...>
    ...
    <servers>
        <server name="server-one" ...>
            <system-properties>
                <property name="jboss.tx.node.id" value="101" boot-time="true"/>
            </system-properties>
            ...
        </server>
        <server name="server-two" ...>
            <system-properties>
                <property name="jboss.tx.node.id" value="102" boot-time="true"/>
            </system-properties>
            ...
        </server>
        ...
    </servers>
    ...
</host>