JIRIAF Meeting Jan. 12 2023

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Agenda:

1. Announcements

1. Streaming CODA
   1. CODA PAAG and SAAG components
   2. JCEdit-5.0: CODA COOL streaming front-end
      1. New CODA types: PAAG and SAAG
   3. AFECS updates to support new CODA types
   4. CODA connection mechanism to a data-processing pipeline
      1. Remote ET FIFO
   5. CODA EPICS interface
      1. ActiveMQ

1. Prototype GEM detector readout
   1. instructions at SAMPA-SRO
   2. DSPDecoder engine (on hold)
   3. Formatting output data in EVIO-6 (in progress)
   4. ML-based anomaly detection: Adaptive sliding window (ADWIN) algorithm-based actor development (completed, testing)
   5. Cluster finding in a stream of data
   6. New GEM detector installation
   7. Integration with the streaming CODA data acquisition system.

1. EJFAT
   1. Port CLAS12 CLARA services into ERSAP (completed)
   2. EJFAT reassemble - ERSAP BE interface (completed)
   3. Successfully run CLAS12 reconstruction application on ejfat-1, streaming data from ejfat-5 through LB on ejfat-1
   4. Corrupted reassembled events
   5. Introducing data lake as a stream-source actor (testing)
   6. PID loop in the BE receiver actor (completed)

1. TriDAS

1. ERSAP planning
   1. Development efforts
      1. Monitoring
         1. Support for InfluxDB (done)
         2. Support for Prometheus (active)
            1. Prometheus ERSAP Exporter (active)
      2. Tiered data storage
         1. Redis as a source actor (on hold)
         2. Data-lake as a source actor
            1. Developed EjfatReaderEngine that includes a large ring buffer. (Testing)
            2. Develop EjfatReaderEngine that talks to ET (designing)
      3. Data stream transport
         1. Implementing Kafka as internal transport (research)
         2. Support for P2P (client-server) communication (on hold)
      4. Transient data format
         1. Use EVIO-6 as default
         2. Evaluate Apache Arrow as a transient data format (active)
         3. EvioArrow, ArrowEvio convertor engines (designing)
      5. Application graphical designer (research)
         1. Extend COOL to describe data-stream processing pipelines
            1. Considering using Spring Boot for web interface and object persistency (research)
         2. Engine provisioning and deployment improvements (on hold)
      6. CLI improvements
      7. New language bindings (on hold)
      8. General-purpose data-stream processing engines (on hold)
      9. Benchmarking and testing (active)
   2. Commissioning and field studies
      1. EIC prototype detector components data stream readout and processing
         1. Upcoming beam tests at the JLAB
2. 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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