sunithabeeram commented on a change in pull request #3470: [PINOT-7328] Reduce
lock contention in physical planning phase by reducing the total number of tasks
URL: https://github.com/apache/incubator-pinot/pull/3470#discussion_r233991909
##########
File path:
pinot-core/src/main/java/com/linkedin/pinot/core/plan/CombinePlanNode.java
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@@ -36,7 +36,7 @@
public class CombinePlanNode implements PlanNode {
private static final Logger LOGGER =
LoggerFactory.getLogger(CombinePlanNode.class);
- private static final int NUM_PLAN_NODES_THRESHOLD_FOR_PARALLEL_RUN = 10;
+ private static final int MAX_PLAN_TASKS = Math.min(10, (int)
(Runtime.getRuntime().availableProcessors() * .5));
Review comment:
Sorry - I misunderstood your earlier comment. I've updated the code to use
the min number of threads possible.
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