One UQL sentence can either run as real-time process, or background task. Ultipa's task mechanism helps users to control the running status of the engine and make real-time adjustments to the computing resources.

Non-algorithm commands and algorithms that adopt streaming return (i.e. return clause is used in algo() command) both run as process in real time.

Show Real-time Process

Returned table name: _top
Returned table header: process_id | process_uql | duration (the id, UQL statement and duration (second) of the task)

Syntax:

// To show all real-time processes in the current Ultipa instance
top()

Stop Real-time Process

Syntax:

// To kill all real-time processes in the current Ultipa instance
kill("*")

// To kill a certain real-time process in the current Ultipa instance
kill(<process_id>)