Github user karuppayya commented on the issue:
https://github.com/apache/zeppelin/pull/1663
I see the following errors in the SELENIUM test
`org.openqa.selenium.NoSuchElementException: Unable to locate element:
{"method":"xpath","selector":"//i[@tooltip='WebSocket Connected']"}`
`org.openqa.selenium.NoSuchElementException: Unable to locate element:
{"method":"xpath","selector":"(//div[@ng-controller=\"ParagraphCtrl\"])`
Reopening the PR to see it is intermittent
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