[GitHub] [arrow-datafusion] andygrove commented on a change in pull request #683: Introduce (default) number of partitions option, use it in DataFusion/Ballista

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

andygrove commented on a change in pull request #683:
URL: https://github.com/apache/arrow-datafusion/pull/683#discussion_r664229657



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File path: ballista/rust/core/src/utils.rs
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@@ -234,7 +234,9 @@ fn build_exec_plan_diagram(
 
 /// Create a DataFusion context that is compatible with Ballista
 pub fn create_datafusion_context() -> ExecutionContext {
-    let config = ExecutionConfig::new().with_concurrency(2); // TODO: this is hack to enable partitioned joins
+    let config = ExecutionConfig::new()
+        .with_concurrency(1)
+        .with_partitions(4); // TODO: make it easier to configure from Ballista

Review comment:
       I filed https://github.com/apache/arrow-datafusion/issues/682 for this




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