Karuppayya created ZEPPELIN-1653:
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Summary: Reduce network usage when updating notebooks/ make UI
responsive
Key: ZEPPELIN-1653
URL: https://issues.apache.org/jira/browse/ZEPPELIN-1653
Project: Zeppelin
Issue Type: Improvement
Reporter: Karuppayya
When we do the following operations, the entire notebook is transmitted back to
client.
1) Insert paragraph
2) Remove paragraph
3) Update paragraph
4) Paragraph status update
5) commit paragraph
When the json becomes larger(which happens when stored large output is stored
in the json), the time to transfer the notebook to client is directly
propotional.(we can check this in chrome browser-> dev console-> select ws
request-> on the right pane that opens, select frames tab and observe the
length column)
And since the UI update is based on this new transmitted json, the UI seems
unresponsive/laggy.
The notebook should be sent to browser only when it is loaded in browser for
first time.
All other updates should be selective.
By fixing this,
1) The amount of data transferred over the network decreases significantly
2) UI will seem responsive. The actions will be reflected in UI faster.
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