mingmwang commented on issue #3033: URL: https://github.com/apache/arrow-datafusion/issues/3033#issuecomment-1206022381
@alamb A single session could have multiple statements run concurrently. And a statement_id is not enough to differ metrics either. For example a single query statement might contain multiple join nodes or multiple parquet scan nodes, each operator node has its own metric set, the node is running by multiple executor instances with many tasks. When Scheduler combine the metrics, need a way to correctly identify metrics from the exact same operator can be combined and merged. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
