[GitHub] [superset] zhaoyongjie commented on issue #15132: Superset memory leak

Tue, 19 Oct 2021 22:23:54 -0700 


zhaoyongjie commented on issue #15132:
URL: https://github.com/apache/superset/issues/15132#issuecomment-947338925


   > @zhaoyongjie I think I found the cause of the memory leak.
   > 
   > ```
   >  @utils.memoized(watch=("impersonate_user", "sqlalchemy_uri_decrypted", 
"extra"))
   >     def get_sqla_engine(
   > ```
   > 
   > memoized use tuple key , The keys for the same query are different. 
Because there's an object in the key 
![image](https://user-images.githubusercontent.com/30097790/138015976-15410700-907b-44e2-80b4-51c1c92193cb.png)
   > 
   > I think we have the same problem in superset 1.3.0 example: 
![image](https://user-images.githubusercontent.com/30097790/138016180-cd7214a3-3fd9-42b4-833b-a97f2ecfc64a.png)
   
   Thanks a lot. 


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