Monitoring Host Pool and Session Utilization

Overview

As covered in the Reference Architecture, Hydra automatically deploys a Log Analytics Workspace within its resource group. This Log Analytics Workspace contains the following tables:

Hydra_Actions_CL - Contains all of the admin and automated tasks that are seen in the Logs module within the Hydra portal but are not subject to the 14-day limitation.
Hydra_ConcurrentUserUsage_CL - Contains overall concurrent session counts approximately every 10 minutes. This data is automatically deduplicated and can be used to track license utilization.
Hydra_HostPoolStatistics_CL - Contains session and host information per host pool. By default, this is collected every 30 seconds per pool.
Hydra_Logs_CL - Contains the Engine logs, even beyond the last engine restart time.

Accessing the Tables

The most common way to view the tables above is to:

Navigate to Logs > Tables within the Log Analytics Workspace in the Azure Portal.
Highlight the table you wish to query and select Run to query the table.

It may be useful to view some tables in a visual format, such as the Concurrent Usage table. Simply click the Chart tab and adjust the filters as needed:

Data Retention

The Log Analytics Workspace deploys with a default retention period of 90 days. If you wish to retain data beyond that, configure different retention periods for both individual tables and the entire Workspace.