From 87a62f694562475ab34489768f9371f1fde2c5fa Mon Sep 17 00:00:00 2001
From: "opensearch-trigger-bot[bot]"
 <98922864+opensearch-trigger-bot[bot]@users.noreply.github.com>
Date: Thu, 23 Feb 2023 12:01:33 -0600
Subject: [PATCH] Fix integer math bug in HeapUsageTracker (#6455) (#6461)

* Fix a bug in Search Backpressure



---------


(cherry picked from commit d4392447e6a60b312108b86aa4910213d2281889)

Signed-off-by: PritLadani <pritkladani@gmail.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
---
 .../search/backpressure/trackers/HeapUsageTracker.java          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/main/java/org/opensearch/search/backpressure/trackers/HeapUsageTracker.java b/server/src/main/java/org/opensearch/search/backpressure/trackers/HeapUsageTracker.java
index d6a38c8797174..bfc738351caf4 100644
--- a/server/src/main/java/org/opensearch/search/backpressure/trackers/HeapUsageTracker.java
+++ b/server/src/main/java/org/opensearch/search/backpressure/trackers/HeapUsageTracker.java
@@ -107,7 +107,7 @@ public static boolean isHeapTrackingSupported() {
      */
     public static boolean isHeapUsageDominatedBySearch(List<CancellableTask> cancellableTasks, double heapPercentThreshold) {
         long usage = cancellableTasks.stream().mapToLong(task -> task.getTotalResourceStats().getMemoryInBytes()).sum();
-        long threshold = (long) heapPercentThreshold * HEAP_SIZE_BYTES;
+        long threshold = (long) (heapPercentThreshold * HEAP_SIZE_BYTES);
         if (isHeapTrackingSupported() && usage < threshold) {
             logger.debug("heap usage not dominated by search requests [{}/{}]", usage, threshold);
             return false;