xfyang1988 commented on issue #4480: Shardingsphere takes a long time to parse simple SQL for the first time URL: https://github.com/apache/incubator-shardingsphere/issues/4480#issuecomment-593093111 > Your time cost maybe not SQL parse only, it seems like the cost of load metadata are added too. > Can you use skywalking or other OpenTracing supported project to trace your SQL parser time? OK, I also saw that the connection delay of MySQL is very small. It should not be caused by this problem. Can the metadata be preloaded?
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