Presto Console¶
Overview¶
The Presto Console is a web-based UI that is included as part of a Presto server installation. To install Presto, see Installing Presto. For information about developing the Presto Console, see Presto Console.
Configuration¶
The default port is 8080. To configure the Presto service to use a
different port, edit the Presto coordinator node’s config.properties
file and change the configuration property http-server.http.port
to
use a different port number. For more information, see
Config Properties.
Open the Presto Console¶
After starting Presto, you can access the web UI at the default port
8080
using the following link in a browser:
http://localhost:8080
![../_images/presto_console.png](../_images/presto_console.png)
Query Viewer¶
Query Viewer displays a query’s details on the Presto Console, including
overview, query plans, stage performance, and splits.
To access the Query Viewer using a web browser, add the path /ui/dev/index.html
to your server IP and port number. For example:
http://localhost:8080/ui/dev/index.html
Use the JSON
tab on the Query Details
page to export and save a query in JSON format.
![../_images/query_details_json.png](../_images/query_details_json.png)
Note: When a Presto server restarts, all the query information is reset.
With the JSON files, you can use the Query Viewer to view the query details.
Access the Query Viewer page. For example:
http://localhost:8080/ui/dev/index.html
Select the
Browse
button and select the JSON file you want to examine. The query information is displayed.Select the
Browse
button to view other JSON files if needed.