A debug session is a period of time when HPA will collect and package useful data about Calypso behavior. This aims first to be shared to Nasdaq Calypso support or customer delivery teams.
4 tabs available in the Debug Sessions screen:
- Start/Stop Debug sessions: configure and launch a debug session
- In progress: status about current debug session
- Explore archived Debug sessions: access to debug sessions archive (zip files)
- Disk usage
2 different modes of data exports are available, past data or live data
Available data, depending on mode of data exports, are present on left:
The 
section summarizes the debug session options and allows to launch it.
During a live debug session you can modify the log level, the log categories and generate multiple objects dumps.
So the Calypso performance can be impacted.
Debug session will be applied on the agents selected in 
As memory dumps can be big - please check the available disk space before starting your debug session !
Past periods In that case, data are shared by days, from the first date selected 00 am to the last date selected 00 am.
If we are on the 19th of May 2025, and Last Week is selected
- From will be the 12th of May
- To will be the 19th of May
Data will be exported until the 18th of May - end of day.
Additional data On top of data captured by the monitoring script, logs and customer specific information, debug session archives can include:
- one (live) or many DB extraction results
- one (live) or many snapshots of Calypso configuration files
- HPA specific metrics aka Processing data covering the debug session period
Debug session for Navigators
To make it work, by default please select the navigator name ending by “%1”