check_gwdatafind_latency: allow constraining latency reference using a flag
This MR adds two new command-line options to the check_gwdatafind_latency
plugin:
-
-f/--analysis-flag
- name of a flag to query, whose latest 'active' segment will constrain the reference for the latency measurement -
-s/--dqsegdb-host
- address of the DQSegDB instance to query for-f/--analysis-flag
This is principally to enable checking for the latency of the LIGO Analysis Ready dataset, which is only written during DMT-ANALYSIS_READY
active times.