From 8fcd1a049c426fc089e37bf98de46dd34f392fe8 Mon Sep 17 00:00:00 2001
From: hassan11196 <hassan11196@hotmail.com>
Date: Thu, 15 Jan 2026 12:12:14 +0100
Subject: [PATCH] Bypass NoPendingSlot limit for Merge job type to prevent
 blocking by pending slot limits

---
 src/python/WMComponent/JobSubmitter/JobSubmitterPoller.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/python/WMComponent/JobSubmitter/JobSubmitterPoller.py b/src/python/WMComponent/JobSubmitter/JobSubmitterPoller.py
index e64b06544f..c0fedac4ff 100644
--- a/src/python/WMComponent/JobSubmitter/JobSubmitterPoller.py
+++ b/src/python/WMComponent/JobSubmitter/JobSubmitterPoller.py
@@ -639,6 +639,11 @@ def _getJobSubmitCondition(self, jobPrio, siteName, jobType):
             totalJobThreshold = totalPendingThreshold + totalRunningSlots
             totalTaskTheshold = taskPendingThreshold + taskRunningSlots
 
+        # Bypass NoPendingSlot limit for job type (Merge)
+        # These jobs should not be blocked by pending slot limits
+        if jobType == 'Merge':
+            totalPendingThreshold = float('inf')
+
         jobStats = [{"Condition": "NoPendingSlot",
                      "Current": totalPendingJobs,
                      "Threshold": totalPendingThreshold},