AER-4181 Fix taskmanager to handle RabbitMQ blocking on memory limit trigger #111
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…trigger When RabbitMQ runs out of memory it will temporary block tasks on the queue. The taskmanager will than get disconnected. It will handle this, but it didn't update this correctly in the load statistics. As a result the taskmanager reported it was busy while it wasn't actually. This will result in few to none new tasks being put on the queue. The fix here is a change in the QueueWatchDog. That class now does the actually watching and calls reset to all relevant processes when a watch dog situation appears. Added unit test to test reset conditions in the different classes. Also update to use the latest aerius parent root pom (to also get ride of junit startup issues in Eclipse).
BertScholten
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Jan 13, 2026
source/taskmanager/src/main/java/nl/aerius/taskmanager/adaptor/WorkerProducer.java
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source/taskmanager/src/main/java/nl/aerius/taskmanager/domain/QueueWatchDog.java
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Would it be also helpful to detect blocked connections and try to handle them gracefully? ( https://www.rabbitmq.com/docs/connection-blocked ) |
BertScholten
approved these changes
Jan 14, 2026
source/taskmanager/src/main/java/nl/aerius/taskmanager/domain/QueueWatchDogListener.java
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When RabbitMQ runs out of memory it will temporary block tasks on the queue. The taskmanager will than get disconnected. It will handle this, but it didn't update this correctly in the load statistics. As a result the taskmanager reported it was busy while it wasn't actually. This will result in few to none new tasks being put on the queue.
The fix here is a change in the QueueWatchDog. That class now does the actually watching and calls reset to all relevant processes when a watch dog situation appears. Added unit test to test reset conditions in the different classes.
Also update to use the latest aerius parent root pom (to also get ride of junit startup issues in Eclipse).