shenbinglife opened a new issue #1951:
URL: https://github.com/apache/incubator-kyuubi/issues/1951


   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   
   
   ### Search before asking
   
   - [X] I have searched in the 
[issues](https://github.com/apache/incubator-kyuubi/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### Describe the bug
   
   当并发创建会话时,EngineRef判断当前引擎数量为空时,会不会导致并发创建引擎?
   
    getServerHost(zkClient, engineSpace).getOrElse {
           create(zkClient, extraEngineLog)
         }
   
   这段代码在并发上是不是有问题? 
   
   ### Affects Version(s)
   
   1.5.0
   
   ### Kyuubi Server Log Output
   
   _No response_
   
   ### Kyuubi Engine Log Output
   
   _No response_
   
   ### Kyuubi Server Configurations
   
   _No response_
   
   ### Kyuubi Engine Configurations
   
   _No response_
   
   ### Additional context
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!


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