Operations | Monitoring | ITSM | DevOps | Cloud

Troubleshooting ActiveMQ Producer Flow Control Blocks

The alert comes in at 2 AM: your order processing service is unresponsive. The application is not crashed, threads are running, the JVM is healthy, but no messages are being sent. Your operations team traces it to a blocked send() call on an ActiveMQ connection. Hours later, after restarting the application, someone finds this line in the broker log from 11 PM the previous day.

ActiveMQ Protocol Comparison: AMQP vs MQTT vs OpenWire vs STOMP

One of ActiveMQ's most powerful and underappreciated capabilities is its protocol polyglotism: a single broker can simultaneously accept Java JMS clients over OpenWire, Python services over AMQP, IoT sensors over MQTT, and Ruby scripts over STOMP, all routing messages between each other without protocol bridges or translation middleware.

The Real Cost of Custom Code: Why Buying a Unified Middleware Management Platform Protects Enterprise IT Budgets

Building custom middleware monitoring appears cost-effective but creates expensive maintenance debt, fragmented visibility, and operational risk. Enterprise teams spend 60-80% of IT budgets on software maintenance while unified platforms deliver immediate, production-ready capabilities.

The AI Bottleneck: Why Your Modern Models Are Choking on Legacy and Streaming Data Architecture

Enterprise AI struggles not from inadequate models, but from fragmented data architecture. Critical business data remains trapped in legacy systems or lost in streaming complexity. Success requires bridging the gap between modern intelligence layers and underlying systems of record.

The Silent Killer of IBM MQ: How One Leaky App Can Crash Your Entire Estate

A single leaky application can crash your entire IBM MQ estate by consuming OS resources through unclosed connections. Traditional monitoring misses these silent killers. Learn how proactive observability detects OPPROCS anomalies before they trigger infrastructure failures.

Apache ActiveMQ 5.19.7 and 6.2.6

On May 27, the Apache ActiveMQ project shipped two releases on the same day: 5.19.7 and 6.2.6. Look at the changelogs side by side and the story is clear — this isn’t a feature drop. It’s a coordinated security-hardening pass applied to both maintained branches of ActiveMQ Classic at once, with the same fixes deliberately backported so that no supported line is left behind.

Upgrading to ActiveMQ 5.19.7 or 6.2.6

The latest Apache ActiveMQ releases – 5.19.7 and 6.2.6, both from May 27 – are good releases to apply. They close known dependency CVEs and tighten the broker’s default posture. (We covered the full list of changes in our release overview.) But here’s the catch with any “secure-by-default” update: hardening defaults means turning things off.

ActiveMQ Message Persistence: KahaDB, Artemis Journal & JDBC

Every persistent message in ActiveMQ must survive a broker restart. That guarantee is the contract behind DeliveryMode.PERSISTENT is what separates a messaging system from a memory buffer. It is also what makes message persistence configuration the most consequential decision in ActiveMQ architecture.