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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/06/29 18:27:59 UTC

[GitHub] [shardingsphere] zjcnb commented on pull request #18677: Refactor ShardingSphereMetaData.databases to ConcurrentHashMap

zjcnb commented on PR #18677:
URL: https://github.com/apache/shardingsphere/pull/18677#issuecomment-1170346140

   I reproduced this problem in my local environment, we have only `server.yaml` and `ShrdingSphere-Proxy `start up success. 
   
   When I connect `Proxy` and excute `DQL` statement. the `databaseName` is null.
   
   <img width="1337" alt="image" src="https://user-images.githubusercontent.com/33742097/176509249-fd97e716-b2b2-4b4a-bfec-6b8af3c21a91.png">
   
   Because `databases` are `ConcurrentHashMap`, so it will throw exception when `key` is null.
   


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