Monitoring activity

System overview (Dashboard)

To see an overview of the operation of the i2 TextChart Server system, navigate to the Dashboard page:

The panels in this display are updated every few seconds. They provide the following information:

Panel	Description
	Shows the number of clusters that are active and ready to accept documents.
	Shows the number of worker nodes that are active, relative to the number of registered nodes.
	Shows the amount of data queued for processing. If a maximum queue size has been specified, shows the percentage of that size that is queued. If no maximum size is set, shows the percentage of disk space used on the file system where the documents are queued.
	Shows the number of processing errors that have occurred.
	Shows the overall throughput performance of the i2 TextChart Server system since manager startup.
	Shows the amount of data and the number of documents that have been processed through the i2 TextChart Server system since manager startup.

Real-time monitoring (Monitor)

To see a real-time graphical view of system performance, navigate to the Monitor page:

The panels show different aspects of system performance:

• System: Shows thread utilization across the entire system.

• Clusters: Shows thread utilization on a per-cluster basis.

• Queue: Shows the overall amount of data that has been queued for processing.

Errors

If any errors occur during document processing, a message appears in the Errors page:

The panel shows when the error occurred, which cluster and worker node it happened on, the name of the file being processed, and a message indicating the type of error.

The table shows only the simple filename, but you can hover over the name to see the full path. Click the trashcan icon to clear the error log.