From 49ba5c7fa2d0558fc406f54b4d286c05c3319898 Mon Sep 17 00:00:00 2001
From: HARPER Jon <jon.harper87@gmail.com>
Date: Fri, 16 Jan 2026 09:02:28 +0100
Subject: [PATCH] SensitivityAnalysisWorkerServic, add a sleep during writer
 finish poll to avoid 100%cpu

This runs for about 5s at 100% during normal a big analysis.
---
 .../server/service/SensitivityAnalysisWorkerService.java  | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/gridsuite/sensitivityanalysis/server/service/SensitivityAnalysisWorkerService.java b/src/main/java/org/gridsuite/sensitivityanalysis/server/service/SensitivityAnalysisWorkerService.java
index a466719e..827c41b5 100644
--- a/src/main/java/org/gridsuite/sensitivityanalysis/server/service/SensitivityAnalysisWorkerService.java
+++ b/src/main/java/org/gridsuite/sensitivityanalysis/server/service/SensitivityAnalysisWorkerService.java
@@ -149,8 +149,12 @@ protected CompletableFuture<Boolean> getCompletableFuture(SensitivityAnalysisRun
                         runContext.getReportNode())
                 .whenComplete((unused1, unused2) -> writer.setQueueProducerFinished())
                 .thenApply(unused -> {
-                    while (!writer.isConsumerFinished()) {
-                        // Nothing to do
+                    try {
+                        while (!writer.isConsumerFinished()) {
+                            Thread.sleep(100);
+                        }
+                    } catch (InterruptedException e) {
+                        Thread.currentThread().interrupt();
                     }
                     writer.interrupt();
                     // used to check if result is not null