facebook/presto — pull request #1106 by zhenxiao (2014-03-07 20:05:24+00:00)
Title: Refresh PrestoWebUI every 30 seconds, instead of 1 second

Refreshing PrestoWebUI every 1 second consumes so much bandwidth and CPU, since we keep all query related info. Set it to be 30 seconds could be much better.