[I] Dubbo 2.7.12 LFUCache Memory leak bug [dubbo]

via GitHub Wed, 13 Dec 2023 21:20:33 -0800


GuanghuiCong opened a new issue, #13500:
URL: https://github.com/apache/dubbo/issues/13500


   Environment
   Dubbo version: 2.7.12
   Operating System version: linux
   Java version: 1.8
   
   Description
   
使用dubbo2.7.12版本出现内存泄漏Bug，gc也无法回收，在本地通过有感网关桥调用服务，发现有感在请求时会附带generic=true的参数，在服务端generic=true会先进入GenericFilter的invoke函数(104行，PojoUtils.realize(args,
 params, 
method.getGenericParameterTypes()))，做class的序列化，在SerializeClassChecker的validateClass中使用到lfuCache，但是LFUcache存在bug，最终导致内存泄漏。
   产生原因：这个 pr [7967 ](https://github.com/apache/dubbo/pull/7967) 导致了该问题
   
   
![3f03e2b089d67633744f3237c1bc4be9](https://github.com/apache/dubbo/assets/79358121/01e4b57f-83b9-4db2-bdf0-9641cad313e7)
    抓包发现：
   
![image](https://github.com/apache/dubbo/assets/79358121/c8bab51c-8368-42e5-9dcf-49d266d35c69)
   
   
   
   
   


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[I] Dubbo 2.7.12 LFUCache Memory leak bug [dubbo]

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