After applying JBoss EAP 7.2 Update 7, messages are being added to a topic even though there are no subscribers attached

Solution Verified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform
    • 7.2 Update 7

Issue

JMS topic publisher is able to add messages to a JMS topic even though there are no subscribers attached to the topic. After topic subscribers consumed messages messages are not being removed from the topic.

Resolution

Apply Update 8 or later when available.
A one-off patch JBEAP-19005 should be applied on top of Update 7

Root Cause

This content is not included.JBEAP-19001

This issue has been caused by these fixes:

Diagnostic Steps

The issue can be observed when JMS topic publisher is started and starts publishing messages on a topic that has no subscribers. There should be no messages added to the topic and all counters should be set to 0, unfortunately this is not the case. It is possible to observe the following where the message-count, instead of being 0 increments as long as messages are being published.

[standalone@rex:9990 /] /subsystem=messaging-activemq/server=default/jms-topic=testTopic:read-resource(recursive=true,include-defaults=true,include-runtime=true)
{
    "outcome" => "success",
    "result" => {
        "delivering-count" => 0,
        "durable-message-count" => 0,
        "durable-subscription-count" => 0,
        "entries" => [
            "java:/jms/topic/testTopic",
            "java:jboss/exported/jms/topic/testTopic"
        ],
        "legacy-entries" => undefined,
        "message-count" => 546L,
        "messages-added" => 0L,
        "non-durable-message-count" => 0,
        "non-durable-subscription-count" => 0,
        "subscription-count" => 0,
        "temporary" => false,
        "topic-address" => "jms.topic.testTopic"
    }
}
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