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我打日志跑完这句查询耗时1000ms以上
  
并且报这个错 rpc调用出现异常 java.lang.RuntimeException: org.springframework.data.mongodb.UncategorizedMongoDbException:

Too many threads are already waiting for a connection.Max number of threads (maxWaitQueueSize) of 250 has been exceeded.

 

 

 

 

 

 

 

 

 

 

 

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