etr2460 commented on issue #9190: [SIP-39] Global Async Query Support URL: https://github.com/apache/incubator-superset/issues/9190#issuecomment-590599208 We've seen significant load on both webservers and the metadata database managing the SQL Lab short polling requests. We're quite concerned that if we add short polling for every chart in a dashboard it would have a bunch of performance implications. One option might be to do a bulk short poll on dashboards, making a single short poll to track all the in flight chart requests. Also, we've seen issues around the short polling in SQL Lab where if any short poll fails, then the entire query is marked as failed on the front end. I wonder if the reliability of short polling makes it less ideal here than using websockets that reconnect when dropped
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