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Process Outbox and Outbox Poller
The Case-Engine processes messages, such as a "task completed" message from a Runtime. When it processes this message, it sends different resulting messages to the outbox. To guarantee transactionality, all messages (such as new automatic tasks, dcm-lists-updates, trace updates and timeline updates) are stored in the database and processed after the database commit has taken place. The Case-Engine considers the processing of the message to be completed, and an async thread will make sure all messages from the outbox are pushed to the right queues eventually. However, one action could lead to many messages to queue in the outbox, especially when the trace is turned on. Therefore processing the outbox has been made configurable, so upscaling is possible.
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When the process_outbox table contains many records, consider tuning the outbox as explained below. |
Processing outbox can be tuned by increasing/decreasing batchsize, concurrent consumers, async threads and interval. Below there is diagram that shows how whole flow works.
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