Summary

The ACS bulk data is part of the Common Software library that provides the software infrastructure that allows data transfer between two o more ACS Components. This is based in a commercial implementation of the DDS (Data Distribution Service) standard of publish-subscribe pattern. The purpose of this project is to investigate ZeroMQ library as an alternative messaging system to transfer data between ALMA subsystems using the similar publish-subscribe pattern.

Objective

  • Analyze the existing code in UTFSM ACSflix Prototype
  • Evaluate the performance of ZeroMQ and this implementation
  • Make a draft implementation of the BulkData/BulkDataNT library using ZeroMQ
    • Needs to be consistent with ACS IDLs and APIs
  • Perform performance analysis using bandwidth throughput and latency metrics

Schedule

  • Week1: Analyze current implementation of ACS BulkData transfer
    •  Functioning of states: start, send, and stop data transfers 
  • Week2: Deploy a ACS test environment to measure performance of bulk data transfer
  • Week3: Assessment of ACSflix prototype
  • Week4: Implementation prototype of BulkData sender library
  • Week5: Implementation prototype of BulkData receiver library
  • Week6: Implementation prototype of BulkData callback library
  • Week7: Deployment of test environment for testing ZeroMQ implementation
  • Week8: Performance analysis of ZeroMQ


Work Log


References

  1. UTFSM ACSflix
  2. ZMQ packages for RHEL 7
  3. RHEL 7 package list
  4. Class_Diagram
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