[GitHub] [arrow] icexelloss commented on a diff in pull request #35384: GH-35383: [C++] Prefer max_concurrency over executor capacity to avoid segmentation fault

[via GitHub]

icexelloss commented on code in PR #35384:
URL: https://github.com/apache/arrow/pull/35384#discussion_r1182556828


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cpp/src/arrow/acero/aggregate_node.cc:
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@@ -398,25 +398,25 @@ class ScalarAggregateNode : public ExecNode, public 
TracedNode {
     auto aggregates = aggregate_options.aggregates;
     const auto& keys = aggregate_options.keys;
     const auto& segment_keys = aggregate_options.segment_keys;
-    const auto concurreny =
-        plan->query_context()->exec_context()->executor()->GetCapacity();
+    const auto concurrency = plan->query_context()->max_concurrency();
+    // We can't use concurrency == 1 because that include I/O concurrency

Review Comment:
   I see. Thanks!



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