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The changes are color coded. Orange elements have been changed, Green elements have been added and Red elements have been removed compared to the 17.x release.
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DCM Maintenance App - ErrorExchange added
Dead letter messages that are not supported will now be sent to an errorExchange including queue. These messages will remain there until a maintainer does something with them.
This change is added to prevent infinite loops in the maintenance app. Beacuse of this change the following steps are needed to do.
In the blueriq-dcm-maintenance-app.yml file, an ErrorExchange needs to be added for the dead letter functionality.
blueriq-dcm-maintenance-app.yml
blueriq:
....
dcm:
maintenance:
app:
dlq:
rabbitmq:
queueNames:
....
errorExchange: dlx.dcmMaintenanceApp
In RabbitMQ, define the errorExchange, dead letter queue and a binding between them. Keep in mind that the errorExchange name needs to be the same as in the configuration of the maintenance app. By default the errorExchange is defined as dlx.dcmMaintenanceApp in the blueriq-dcm-maintenance-app.yml.
Known issues
For an overview of known issue please refer to: Known issues.
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