IT:Queues/en: Perbedaan revisi
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The following queues are used within iSIKHNAS to transfer tasks between different elastic servers. | The following queues are used within iSIKHNAS to transfer tasks between different elastic servers. | ||
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==emailouput== | ==emailouput== | ||
Revisi per 2 September 2014 17.08
Queues
The following queues are used within iSIKHNAS to transfer tasks between different elastic servers.
emailinput
emailouput
Messages are placed on this queue by different servers wanting to send an email. They are collected by the email sending daemon on the messaging server. Messages include the To address, subject, message content, and a reference to any attachments in S3.
reportrequest
The report creation daemon listens to this queue and generates output reports.
deadletter
This is a special queue for messages which could not be processed. Normally, un-handled messages are placed back on the queue so another server can process them. However, after 20 attempts, if the message has not been successfully processed, there is either a problem with the message format or with the server. In this case the message is placed in the deadletter queue. Messages from the deadletter queue are reported regularly to administrators for debugging purposes.