Tag: wildfly

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Local javac path issues on older OpenShift WildFly8.2 based project

I have an app that I created a few months back on OpenShit based on the WildFly 8.2 cartridge. Locally in Eclipse the project builds and compiles fine, but executing mvn directly or in Netbeans (which also builds using your mvn pom.xml), it fails with an error regarding a path to javac:

-------------------------------------------------------------
COMPILATION ERROR : 
-------------------------------------------------------------
Failure executing javac, but could not parse the error:
/bin/sh: ${env.OPENSHIFT_WILDFLY_DIR}usr/lib/jvm/jdk1.8.0_05/bin/javac: bad substitution
1 error

This is obviously setup for building specifically in the OpenShift environment with this property defining the path to javac:

<maven.compiler.executable>${env.OPENSHIFT_WILDFLY_DIR}usr/lib/jvm/jdk1.8.0_05/bin/javac</maven.compiler.executable>

There’s a few posts and discussions about this (e.g. here and I suspect this is related), but I’m guessing the version of the pom.xml I have is older and been changed recently. I created a new OpenShift WildFly based project to compare the created pom.xml, and these two properties are no longer in the pom.xml file:

<maven.compiler.executable>${env.OPENSHIFT_WILDFLY_DIR}usr/lib/jvm/jdk1.8.0_05/bin/javac</maven.compiler.executable>
<maven.compiler.fork>true</maven.compiler.fork>

Removing them fixes my local builds, and pushing the code to OpenShift still seems to build ok too.

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OutOfMemoryError initializing HornetQ on OpenShift WildFly 8.2

Saw this error starting up my JMS queue on WildFly 8.2 running on OpenShift:

2015-01-02 21:03:46,417 WARN  [org.hornetq.ra] (default-threads - 1) HQ152005: Failure in HornetQ activation org.hornetq.ra.inflow.HornetQActivationSpec(ra=org.hornetq.ra.HornetQResourceAdapter@b1dce2 destination=jms/queue/spot destinationType=javax.jms.Queue ack=Auto-acknowledge durable=false clientID=null user=null maxSession=15): java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method) [rt.jar:1.8.0_05]

Based on this thread, a suggestions was to reduce the JMS thread pool – my current config (possibly carried over from my prior deployment on WildFly 8.1)

<subsystem xmlns="urn:jboss:domain:messaging:2.0">            <hornetq-server>
   <journal-file-size>102400</journal-file-size>
   <thread-pool-max-size>${messaging.thread.pool.max.size}</thread-pool-max-size>
   <scheduled-thread-pool-max-size>${messaging.scheduled.thread.pool.max.size}</scheduled-thread-pool-max-size>

So based on the recommendation in the linked post above, I set thread-pool-max-size and scheduled-thread-pool-max-size to 20 and this fixed my OutOfMemory issue.

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JAX-WS endpoint deployment issue on OpenShift WildFly 8.2

When attempting to deploy an app with a JAX-WS endpoint to WildFly on OpenShift, attempting to hit the ?wsdl url to check the generated wsdl gives this error:

22:49:49,502 ERROR [io.undertow.request] (default task-3) UT005023: Exception handling request to /ExampleEndpoint: javax.xml.ws.WebServiceException: JBWS024032: Cannot obtain endpoint jboss.ws:context=,endpoint=example.endpoint.ExampleEndpoint at org.jboss.wsf.stack.cxf.transport.ServletHelper.initServiceEndpoint(ServletHelper.java:82)

From some Googling, it appears this issue is related to the fact that on OpenShift your app is deployed as the root context and so you need to add a jboss-web.xml to define that your app is deployed at the root context (and not at /ROOT/, since the deployed app is ROOT.war) so your wsdl can be found at the expected url.

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Adding a JMS Queue to Wildfly 8.x

The messaging subsystem in Wildfly is enabled in the standalone-full.xml config (not standalone.xml).

To add a new queue, search for <subsystem xmlns=”urn:jboss:domain:messaging:2.0″>, and then within the <hornetq-server> section, add a new <jms-destinations> if it doesn’t exist already, and define your queue name and JNDI lookup:

<jms-destinations>
    <jms-queue name="exampleQueue">
        <entry name="jms/queue/example"/>
        <entry name="java:jboss/exported/jms/queue/example"/>
    </jms-queue>
</jms-destinations>

 

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