Github user r-kamath commented on the issue:
https://github.com/apache/zeppelin/pull/2881
@zjffdu currently data update and refresh timing in ui grid is not
guaranteed. This issue persists only when the interval is below 1sec. I
modified your example with 2sec delay and the rendering is fine.
However, frequent refreshing of ui table is causing too many
`[Violation] 'setTimeout' handler took <N>ms` and
`[Violation] Added non-passive event listener to a scroll-blocking <some>
event. Consider marking event handler as 'passive' to make the page more
responsive. See <URL>`
About support for Passive Event Listeners:
https://stackoverflow.com/a/39187679
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