Difference between revisions of "APEL/MessagingProtocol"
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* the Compute Accounting Record (CAR): see https://twiki.cern.ch/twiki/bin/view/EMI/ComputeAccounting | * the Compute Accounting Record (CAR): see https://twiki.cern.ch/twiki/bin/view/EMI/ComputeAccounting | ||
* the Storage Accounting Record (StAR): see https://twiki.cern.ch/twiki/bin/view/EMI/StorageAccounting | * the Storage Accounting Record (StAR): see https://twiki.cern.ch/twiki/bin/view/EMI/StorageAccounting | ||
Revision as of 16:12, 11 June 2012
Accounting Messaging Protocol
Discussion about this protocol will take place on the mailing list emi-jra1-messaging@eu-emi.eu.
Background
It has been agreed within EMI and EGI to use messaging for transporting accounting data. The APEL team developed software (called SSM) for use with messaging, and although it can be used independently of the message format, it uses a somewhat complex message sequence on top of the STOMP protocol, so it is not easy for other software to interact.
We will discuss ways to simplify the protocol so that it is simple for different accounting software to interact.
We won't consider the message content here - that is covered elsewhere, such as:
- the Compute Accounting Record (CAR): see https://twiki.cern.ch/twiki/bin/view/EMI/ComputeAccounting
- the Storage Accounting Record (StAR): see https://twiki.cern.ch/twiki/bin/view/EMI/StorageAccounting
The current protocol
This document describes the current protocol used by SSM. It may not be entirely well-defined, because it was written after the software.
Please feel free to comment if this document is unclear or if you think it is incorrect, and I will improve it.
Criticisms of the protocol
This document attempts to describe problems with the current protocol and suggestions for improving it.
Please reply with comments about the listed problems and proposals, so that we can make sure any possible issues are addressed properly.
Proposed protocol
When a new protocol is proposed, it will be added here.