APEL Client Requirements


Volatile information publishing, producers will retry publishing if there is no acknowledgement from consumer.

Client types


Producers publishing accounting data, WAN distributed.


Consumer consuming collected accounting data, could be LAN distributed.

Destination types

  • short-term destination type, for example: grid.accounting.cpudata.<ROC-NAME>
  • long-term will be looking at one destination type per type of accounting data

For a give destination type:

  • instances number: at least 1 central instance, maximum 1 instance per NGI plus 1 central (~41)
  • messages content: encrypted accounting data
  • messages size: between ~1kB and 1MB
  • format of the messages body: SMIME wrapper
  • messages lifetime: 0 since producers will resend
  • maximum latency: < 15 seconds
  • permanent vs occasional connections: permanent connections
  • security requirements: none at messaging level

For a given destination instance:

  • 1 producer, 1 consumer, 20 messages per day

For a given destination type:

  • maximum 330 producers, 1 consumer, ~7K messages per day

Programming Languages

Not known

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Topic revision: r6 - 2011-06-22 - AndresAeschlimann
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