All requests recent period (the default is three days, including that day):
select * from dc_requests_issued order by time desc limit 10;
The current session:
select * from sessions;
Set way here:
https://www.vertica.com/docs/9.2.x/HTML/Content/Authoring/AdministratorsGuide/Monitoring/Vertica/ConfiguringDataRetentionPolicies.htm
All monitoring-related data collector can be enumerated:
https://www.vertica.com/docs/9.2.x/HTML/Content/Authoring/SQLReferenceManual/SystemTables/MONITOR/DATA_COLLECTOR.htm
Monitoring data table storage request information called dc_requests_issued, which corresponds to the data collector name is RequestsIssued