kangkaisen commented on issue #831: Powerful Improve: parallel scan exec instance URL: https://github.com/apache/incubator-doris/issues/831#issuecomment-477894339 @imay Thanks for your reminder. I will not parallel scan exec instance for broadcast join inner table and small size table. As for the `max instances limit`，I want to do this initially, but I don't find a good way to do this. If we want to limit the max instances for All BE, different cluster has different BE number，but we don't have cluster level config and only one server level config couldn't do this limit well. If we want to limit the max instances for one BE, I think we could indirectly do this by `parallel_scan_exec_instance_num` config.
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