patrick.thomas@LIGO.ORG - posted 07:28, Wednesday 09 December 2015 - last comment - 13:16, Wednesday 09 December 2015(24074)
SNEWS alert test in GraceDB
Mike L. called and notified me that there was a SNEWS test alert entered into GraceDB (E206974, see attached screenshot). I did not get a verbal alarm.
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There was no alarm for this in the control room because the script that queries GraceDB (ext_alert.py) will only look back 36000 seconds and the delay for this alarm was 73681.000000sec.
We have been using the default 'lookback' time, but can set to be any value we choose from the command line at the start of ext_alert.py. This delay was a special case, but it might be worth looking back a bit more than 10 hours...
Lookback time code is below if anyone is curious.
actions['run'].add_argument('-l', '--lookback-time', type=float, default=36000,
dest='lookback',
help='how far back in time to query, '
'default: %(default)s')
...(later, in the loop)
# query gracedb
now = gps_time_now(ifo=args.ifo)
start = now - args.lookback
client, events = list(
query_gracedb(start, now, ifo=args.ifo, connection=client,
far=args.far, test=args.test))