[GitHub] [arrow-datafusion] Ted-Jiang commented on a change in pull request #1883: Separate cpu-bound (query-execution) and IO-bound(heartbeat) to …

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Ted-Jiang commented on a change in pull request #1883:
URL: https://github.com/apache/arrow-datafusion/pull/1883#discussion_r816398331



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File path: ballista/rust/executor/src/executor_server.rs
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@@ -261,6 +262,8 @@ impl<T: 'static + AsLogicalPlan, U: 'static + AsExecutionPlan> TaskRunnerPool<T,
         let executor_server = self.executor_server.clone();
         tokio::spawn(async move {
             info!("Starting the task runner pool");
+            //TODO make it configurable
+            let dedicated_executor = DedicatedExecutor::new("task_runner", 4);

Review comment:
       set default to 4 due to: in ballista conf  `concurrent_tasks` set 4 . We will make it configurable




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