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

• 18-01-2021 - 22-01-2021: Summary ACS/BDNT
• 22-01-2021 onwards: Work Log

References

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