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by Ross Mahony.
Original Post: Useful commands to monitor and troubleshoot HornetQ in JBoss EAP 6
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The JBoss Enterprise Application Platform (JBoss EAP) is a Java EE application server runtime platform used for building, deploying, and hosting Java applications and services. JBoss EAP 6 is Java EE 6 certified with Red Hat support.
HornetQ is an open source project to build a multi-protocol, embeddable, very high performance, clustered, asynchronous messaging system and is also developed by Red Hat. HornetQ is the Java Message Service (JMS) provider for JBoss EAP 6 and is configured as the Messaging Subsystem.
The following contains a collection of useful commands and steps in monitoring and troubleshooting HornetQ. Note that the commands below were run on a Windows machine with a default standalone setup of JBoss EAP with the messaging subsytem configured and a test queue created.
Before you continue if you are attempting to do this in a production environment then it is very important to backup your messaging data folders or anything else you may need.
Finding the message count of a queue
Open a command prompt and run the jboss-cli script from within the JBOSS_HOME bin directory:
You can move a message from one queue to another if you know the message id of the message you want to move. You should be able to get this from listing the message as described earlier:
If you need to force commit a prepared transaction you can do so by providing the transaction-as-base-64 value found in the list-prepared-transaction command for the following command:
HornetQ has a number of Java utility applications that can be run in order to perform certain tasks, these classes can be found in the %JBOSS_HOME%\modules\system\layers\base\org\hornetq directory.
ExportJournal
Use this class to export the journal data. You can use it as a main class or through its native method exportJournal(String, String, String, int, int, String), example as main method:
Read XML output generate by the org.hornetq.core.persistence.impl.journal.XmlDataExporter class, create a core session, and send the messages to a running instance of HornetQ, example:
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