tuohai666 opened a new issue #2601: Verify the shardingRule at the beginning URL: https://github.com/apache/incubator-shardingsphere/issues/2601 ### Is your feature request related to a problem? Yes. Please refer to https://github.com/apache/incubator-shardingsphere/issues/2597 ### Describe the feature you would like. It's not friendly to fire a NullPointerException in this senario. We'd better verify the shardingRule when the application start. If the **actualDataNodes** don't match the **algorithmExpression**, the application will stop and print some meaningful information.
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