The bridge data collection is driven by a crontab entry in /usr/local/netdata/crontabs/cronlist.peleus*. It is performed once an hour. Since the list of active bridges is dynamic, it is fetched from CANDO at various times during the day and the data collection program uses this list /usr/local/netdata/sql.data/eb.nodes* to know what nodes to collect data from. Configuration* information, fetched from the bridges at 8:15am daily is also available.
Currently the data is collected and graphed once an hour. These graphs appear under "today".
The analysis for the tabular reports and graphs for yesterday, weekly, and fortnightly are produced between 3 and 8 am daily.
In the analysis, certain data values which exceed thresholds are flagged as alerts, and are extracted for the Daily Summaries.