Online Monitoring Shift
The Online Monitoring System
The Online Monitoring System is a software system that couples with the Data Acquisition System to monitor the quality of the data as it is read in. The system is responsible for ensuring that the detector systems are producing data of sufficient quality that successful analysis of the data in the offline capable of producing a physics result is likely.
The online monitoring consists primarily of generating numerous histograms that can be viewed by shift takers or analyzed automatically by macros to check the data quality. These are produced by a set of plugins, each representing a different detector or online system. The plugins are attached to processes running on multiple computers in the counting house. The nodes used will vary depending on whether the DAQ is configured to run a L3 trigger and how many nodes are required by the algorithm being run. The node names will be in the pool specified as "L3" in the list maintained on the HallD Online IP Name And Address Conventions page of the GlueX wiki. The monitoring processes will be started and killed automatically by the DAQ system via scripts attached to state transitions.
The definitions of the histograms are ultimately the responsibility of the detector or online system experts.
The individuals responsible for the Online Monitoring are shown in following table. Problems with normal operation of the Online Monitoring should be referred to those individuals and any changes to their settings must be approved by them. Additional experts may be trained by the system owner and their name and signature added to the document residing in the Hall D Counting House.
|Name||Extension||Date of qualification|
|David Lawrence||269-5567||May 28, 2014|