EPSCI SRO Meeting Sep. 16 2024

Connection Info:

Microsoft Teams Meeting ID: 284 014 929 953 Passcode: hBrrMRYou (Click "Expand" to the right for details -->):

Microsoft Teams
Meeting ID: 284 014 929 953
Passcode: hBrrMRYou

Agenda:

• Announcements
  • SC24 Demo Preparation: Finalizing elements for the upcoming SC24 demo.
• Preparing a new data-stream processing test
  • Reassembly Engine: Integrating with Prometheus for enhanced metrics support.
  • TDP/DPUX as JIRIAF Front-End: Implementing the RTDP/DPUX framework at the JIRIAF front-end for testing.
  • EJFAT Testbed Commissioning: Commissioning the data-stream test on the EJFAT platform.
• Streaming CODA
  • CODA control events
    • Discussion on communicating VTP/ROC configurations (run-type) to the Event Builders (EBs).
    • Strategies for informing EBs when all VTPs or ROCs have entered the prestarted state.
    • Mechanisms to notify CODA components about the end of a run.
  • Role of the load balancer (LB)
    • The LB simplifies CODA component discovery and networking.
    • Control event broadcasting via the Data Plane (DP) is not viable and of limited use.
    • CODA run-control (AFECS) platform as the manager for control events and the streaming DAQ state machine. CODA control events will be handled out-of-band for streaming workflows.
• CODA AFECS platform
  • CODA platform and LB communication
    • Verifying or discovering the readiness of CODA "back-end" components.
    • Investigating the potential for accessing stream source data via the Control Plane (CP).
  • AFECS Pub-Sub servers for CODA-3.x
    • General discussion on cMsg and cMsg rc-domain servers.
    • Evaluating the feasibility of using the LB CP as the sole pub-sub server for streaming CODA, potentially replacing cMsg with gRPC.
• AOT

Useful References

• SRO Meetings
• CLAS12 SRO page
• ERSAP Document
• Vardan's WMS draft
• Graham's Paper describing SRO
• Dave Abbott's slides on data format

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