[horizon][dev] Auto-Refresh Feature Proposal
Santos, Gustavo Faganello
GustavoFaganello.Santos at windriver.com
Wed Aug 18 20:39:58 UTC 2021
I'm here to find out what you think about the addition of a feature in OpenStack Horizon. As you may know, Horizon requires the user to manually update the page in order to get the most recent data in the system, e.g. if an instance is created, deleted or renamed before the page is reloaded, the user has to hit the refresh button in their browser to see those changes in the page. This applies to the majority of Horizon's pages, including, but not limited to, Instances, Volumes, Users and so on.
With that in mind, our team has implemented and tested a prototype of an auto-refresh feature for Horizon. We've been using it for a while now and have received positive feedback from our clients. It automatically updates the information in tables, pie charts (such as the Compute Overview page graphs) and details pages every five seconds, without the need for manually refreshing the page. The information displayed on the page will be replaced by the most recent data without any action from the user or any page reloading. It essentially works by requesting, in the background, the opened page again and again every few seconds through AJAX, and then replacing the old information with the new one if they differ. The feature affects every element in Horizon, except AngularJS ones - the tables in the Compute Images, Key Pairs and Server Groups pages are AngularJS elements and will not be affected by auto-refresh, for example. We are open to looking into this issue in the future, though.
Could you please let us know if you would be open to adding such a feature to Horizon? If so, we'd be willing to do the upstream implementation in OpenStack, and we think it would be a great addition to the end users.
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