waans11 commented 6 years ago

Currently, the TwitterMap front-end blindly receives a result from the Cloudberry and uses it. So, whenever multiple queries are issued (e.g., a user drags or zooms-in quickly), those results cannot be handled properly. To fix this issue, the following needs to be done.

A query has a unique ID (e.g., UUID).
Front-end sends this unique ID as a part of parameters to Cloudberry.
Cloudberry returns this unique ID as a part of the result for this query.
Before updating the result, front-end checks whether the ID returned from Cloudberry is the same to the current query's ID, and only for that case, update the result.

JavierJia commented 6 years ago

We can reuse or extend the design of the wrap request to add id field. (ctrl+F wrap in our document webpage: http://cloudberry.ics.uci.edu/documentation/.

chenlica commented 6 years ago

@JavierJia already setup the architecture to make such extensions easy. Great job!

baiqiushi commented 6 years ago

ISG-ICS / cloudberry

Handling multiple queries in TwitterMap #460

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