[GitHub] [arrow-datafusion] crepererum opened a new issue #680: `ExecutionContext` w/ information schema leaks catalogs

[GitBox <gi...@apache.org>]

crepererum opened a new issue #680:
URL: https://github.com/apache/arrow-datafusion/issues/680


   **Describe the bug**
   Catalog registered to `ExecutionContext` with an information schema are never freed due to a cyclic Arc chain.
   
   **To Reproduce**
   Steps to reproduce the behavior:
   
   ```rust
   #[tokio::test]
   async fn catalogs_not_leaked() {
       // the information schema used to introduce cyclic Arcs
       let ctx = ExecutionContext::with_config(
           ExecutionConfig::new().with_information_schema(true),
       );
   
       // register a single catalog
       let catalog = Arc::new(MemoryCatalogProvider::new());
       let catalog_weak = Arc::downgrade(&catalog);
       ctx.register_catalog("my_catalog", catalog);
   
       let catalog_list_weak = {
           let state = ctx.state.lock().unwrap();
           Arc::downgrade(&state.catalog_list)
       };
   
       drop(ctx);
   
       assert_eq!(Weak::strong_count(&catalog_list_weak), 0);
       assert_eq!(Weak::strong_count(&catalog_weak), 0);
   }
   ```
   
   **Expected behavior**
   Memory is freed.
   
   **Additional context**
   Affects master branch at `58da15970dc0ec9e3c1c369fe89f6ba38e09d9c9`.
   


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[GitHub] [arrow-datafusion] alamb closed issue #680: `ExecutionContext` w/ information schema leaks catalogs

[GitBox <gi...@apache.org>]

alamb closed issue #680:
URL: https://github.com/apache/arrow-datafusion/issues/680


   


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