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Posted to dev@eventmesh.apache.org by GitBox <gi...@apache.org> on 2022/12/02 02:28:45 UTC

[GitHub] [incubator-eventmesh] Alonexc opened a new issue, #2381: [Enhancement] Method gets and sets a value of a ConcurrentHashMap in a racy manner

Alonexc opened a new issue, #2381:
URL: https://github.com/apache/incubator-eventmesh/issues/2381

   ### Search before asking
   
   - [X] I had searched in the [issues](https://github.com/apache/eventmesh/issues?q=is%3Aissue) and found no similar issues.
   
   
   ### Enhancement Request
   
   ![image](https://user-images.githubusercontent.com/91315508/205200559-cd48bc1b-9b84-406f-9773-b1e4841df4b1.png)
   located at:
   eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/protocol/grpc/consumer/ConsumerManager.java line 104
   analysis and explanation:
   This method retrieves the value of a key from a ConcurrentHashMap, where the value is itself a collection. It checks this value for null, and if it is so, creates a new collection and places it in the map. This may cause thread race conditions where two threads overwrite each other's values. 
   
   
   ### Describe the solution you'd like
   
   Sould be using ConcurrentHashMap.putIfAbsent(K, V) instead
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!


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[GitHub] [incubator-eventmesh] xwm1992 closed issue #2381: [Enhancement] Method gets and sets a value of a ConcurrentHashMap in a racy manner

Posted by GitBox <gi...@apache.org>.
xwm1992 closed issue #2381: [Enhancement] Method gets and sets a value of a ConcurrentHashMap in a racy manner
URL: https://github.com/apache/incubator-eventmesh/issues/2381


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[GitHub] [incubator-eventmesh] jonyangx commented on issue #2381: [Enhancement] Method gets and sets a value of a ConcurrentHashMap in a racy manner

Posted by GitBox <gi...@apache.org>.
jonyangx commented on issue #2381:
URL: https://github.com/apache/incubator-eventmesh/issues/2381#issuecomment-1336096935

   I want to fix it.


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